簡介

本頁面提供了有關 James Ralph Scapa 已知的內部交易歷史的全面分析。內部人士包括公司的高管、董事或重要投資者。一般而言,基於內幕、非公開信息進行交易是非法的。這並不意味著他們在自己的公司進行任何交易都是非法的。但是,他們必須透過Form 4向美國證券交易委員會(SEC)報告所有交易。盡管存在這些限制,學術研究表明,內部人士 - 整體而言 - 在自己公司中的投資表現往往優於市場。

平均交易盈利能力

「平均交易盈利能力」衡量了內部人士在過去三年中所有非計劃性的公開市場購買交易的平均回報率。計算過程包括檢查每筆交易,排除了作為10b5-1交易計劃的一部分的交易。然後,對每筆交易在3、6和12個月的表現進行平均,以生成該筆交易最終的表現指標。最終,將所有交易的表現指標進行平均,計算出內部人士的總體平均表現指標。列表僅包含在過去兩年中進行過至少三筆交易的內部人士。

如果內部人士的交易盈利能力顯示為"N/A",則可能是因為該內部人士在過去三年內沒有進行任何公開市場購買交易,或者他們進行的交易距離現在太近,無法計算出可靠的表現指標。

更新頻率:每日

查看收益最高的的內幕交易者列表。

報告內部持倉的公司

SEC文件顯示James Ralph Scapa已報告在以下公司擁有持倉或進行了交易:

證券 職位 最新報告的持倉
US:ALTR / Altair Engineering Inc. Chief Executive Officer, Director, 10% Owner 0
如何解讀這些圖表

以下圖表顯示了在James Ralph Scapa進行的每筆公開市場非計劃交易後證券的股價表現。非計劃交易是指沒有作為10b5-1交易計劃的一部分而進行的交易。股價表現以累積百分比變化的方式繪製。例如,如果一筆內部人士交易是在2019年1月1日進行的,該圖表將顯示該證券的每日百分比變化直至當前日期。如果在此期間股價從10美元漲至15美元,則股價的累積百分比變化將為50%。從10美元漲至20美元的價格變化將為100%,而從10美元跌至5美元的價格變化將為-50%。

最終,我們將評估內部人士的交易與股價的超額回報(正向或負向)之間的相關性,以判斷內部人士是否在交易中利用內部信息獲利。如果內部人士有這樣的行為,我們預期看到(a)購買後的正回報,或者(b)賣出後的負回報。對於情況(a),購買圖表將顯示一系列向上傾斜的曲線,表示每次購買後都有正回報。對於情況(b),賣出圖表將顯示一系列向下傾斜的曲線,表示每次賣出後都有負回報。

然而,僅憑這一點還不足以得出結論。例如,如果公司的股價在多年內呈現非周期性上升,我們會預期所有購買後的圖表都呈現向上傾斜。同樣地,多年來呈現非周期性下降的股價會導致賣出後的圖表也呈現向下傾斜。這兩種情況的圖表都不能表示內部人士在進行內幕交易。

最有力的指標是在公司股價呈極度循環波動的情況下,「購買」圖表顯示正向信號,而「賣出」圖表顯示負向趨勢。這種情況強烈暗示內部人士可能根據內幕信息精確地計時進行交易,以獲得財務優勢。

歷史內部人交易

該表格顯示了由 James Ralph Scapa 進行的所有內幕交易的完整列表,這些交易已向美國證券交易委員會(SEC)披露。

呈報日期 交易日期 表格 證券代碼 證券 代碼 10b5-1 股份 剩餘股份 %
變化
每股
股價
交易
金額
剩餘
金額
2025-03-26 2025-03-26 4 ALTR Altair Engineering Inc.
Class A Common Stock
D - Sale to Issuer -1,184 0 -100.00 113.00 -133,792
2025-03-26 2025-03-26 4 ALTR Altair Engineering Inc.
Class A Common Stock
D - Sale to Issuer -190,505 0 -100.00 113.00 -21,527,065
2025-03-19 2025-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -9 1,184 -0.75 111.30 -1,002 131,779
2025-02-14 2025-02-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 72,555 190,505 61.51
2024-12-05 2024-12-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -16,095 117,950 -12.01 105.65 -1,700,437 12,461,418
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,500 0 -100.00 105.69 -686,988
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,500 0 -100.00 105.69 -686,988
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -296 0 -100.00 103.84 -30,737
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,522 296 -89.50 103.19 -260,251 30,545
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,522 296 -89.50 103.19 -260,251 30,545
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,682 2,818 -56.65 102.08 -375,861 287,663
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -295 0 -100.00 103.84 -30,633
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,683 2,817 -56.66 102.08 -375,963 287,561
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -928 0 -100.00 95.55 -88,668
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -928 0 -100.00 95.55 -88,668
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,572 928 -85.72 95.03 -529,501 88,187
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,572 928 -85.72 95.03 -529,501 88,187
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,490 0 -100.00 89.53 -133,404
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,010 1,490 -77.08 88.89 -445,335 132,445
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,490 0 -100.00 89.53 -133,404
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,010 1,490 -77.08 88.89 -445,335 132,445
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,484 0 -100.00 88.60 -131,477
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,016 1,484 -77.17 87.96 -441,230 130,539
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,483 0 -100.00 88.60 -131,389
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,017 1,483 -77.18 87.96 -441,318 130,452
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -900 0 -100.00 99.57 -89,609
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -900 0 -100.00 99.57 -89,609
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,762 900 -66.19 98.67 -173,863 88,806
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,838 2,662 -59.05 97.77 -375,235 260,259
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,761 900 -66.18 98.67 -173,765 88,806
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,839 2,661 -59.06 97.77 -375,333 260,162
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 94.18 -9,418
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 94.18 -9,418
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,950 100 -98.02 93.28 -461,716 9,328
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,950 100 -98.02 93.28 -461,716 9,328
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,450 5,050 -22.31 92.71 -134,435 468,203
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,450 5,050 -22.31 92.71 -134,435 468,203
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-05-10 2024-05-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -9 1,193 -0.75 84.38 -759 100,665
2024-05-10 2024-05-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -5,560 134,045 -3.98 84.37 -469,117 11,309,859
2024-03-19 2024-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 41,000 139,605 41.58
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,500 0 -100.00 80.84 -363,778
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,500 0 -100.00 80.84 -363,778
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 4,500 -10.00 79.87 -39,934 359,405
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 4,500 -10.00 79.87 -39,934 359,405
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-03-14 2024-03-13 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -93 1,202 -7.18 81.66 -7,594 98,155
2024-03-14 2024-03-13 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,686 98,605 -1.68 81.66 -137,678 8,052,025
2024-03-05 2024-03-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -3,300 100,291 -3.19 85.32 -281,556 8,556,828
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,790 0 -100.00 91.35 -254,860
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,210 2,790 -44.20 90.72 -200,485 253,100
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,789 0 -100.00 91.35 -254,768
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,211 2,789 -44.22 90.72 -200,575 253,010
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,905 0 -100.00 83.91 -243,760
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,095 2,905 -41.90 83.48 -174,896 242,517
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,904 0 -100.00 83.91 -243,676
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,096 2,904 -41.92 83.48 -174,980 242,434
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -68 0 -100.00 74.58 -5,071
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,932 68 -98.64 74.11 -365,504 5,039
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -67 0 -100.00 74.58 -4,997
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,933 67 -98.66 74.11 -365,578 4,965
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -800 0 -100.00 73.60 -58,882
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -800 0 -100.00 73.60 -58,882
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,253 800 -80.26 72.48 -235,792 57,988
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,253 800 -80.26 72.48 -235,792 57,988
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -947 4,053 -18.94 71.74 -67,935 290,750
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -947 4,053 -18.94 71.74 -67,935 290,750
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -350 0 -100.00 66.05 -23,119
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -350 0 -100.00 66.05 -23,119
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,348 350 -90.54 65.44 -219,103 22,905
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,348 350 -90.54 65.44 -219,103 22,905
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,302 3,698 -26.04 64.48 -83,948 238,432
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,302 3,698 -26.04 64.48 -83,948 238,432
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 65.29 -326,450
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 65.29 -326,450
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 62.46 -312,325
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 62.46 -312,325
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,601 0 -100.00 75.14 -195,444
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,601 0 -100.00 75.14 -195,444
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,399 2,601 -47.98 74.66 -179,114 194,196
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,399 2,601 -47.98 74.66 -179,114 194,196
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,400 0 -100.00 75.63 -105,883
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,400 0 -100.00 75.63 -105,883
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,600 1,400 -72.00 75.00 -269,993 104,997
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,600 1,400 -72.00 75.00 -269,993 104,997
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-06-07 2023-06-06 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -9,267 103,591 -8.21 74.30 -688,557 7,697,018
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 67.94 -339,715
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 67.94 -339,715
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-05-15 2023-05-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -548 112,858 -0.48 67.40 -36,935 7,606,629
2023-05-11 2023-05-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -5,358 113,406 -4.51 67.82 -363,380 7,691,195
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -291 0 -100.00 71.08 -20,685
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,709 291 -94.18 70.28 -330,963 20,452
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,709 291 -94.18 70.28 -330,963 20,452
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -291 0 -100.00 71.08 -20,685
2023-03-17 2023-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -109 1,295 -7.76 64.97 -7,081 84,131
2023-03-17 2023-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,784 118,764 -1.48 64.97 -115,906 7,716,097
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,507 0 -100.00 66.49 -432,644
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,493 6,507 -56.62 65.91 -559,782 428,883
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,000 15,000
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,676 0 -100.00 66.49 -576,859
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,324 8,676 -56.62 65.91 -746,376 571,844
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-03-15 2023-03-13 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -91 1,404 -6.09 62.49 -5,687 87,739
2023-03-15 2023-03-13 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,414 120,548 -1.16 62.49 -88,362 7,533,165
2023-03-08 2023-03-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 38,000 121,962 45.26
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,547 0 -100.00 58.15 -148,098
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,453 2,547 -83.02 57.60 -717,330 146,715
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,000 15,000
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,396 0 -100.00 58.15 -197,464
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,604 3,396 -83.02 57.60 -956,440 195,620
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -15,000 0 -100.00 49.90 -748,575
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,000 15,000
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -20,000 0 -100.00 49.90 -998,100
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -217 0 -100.00 49.05 -10,644
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,783 217 -98.55 48.44 -716,118 10,512
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,000 15,000
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -289 0 -100.00 49.05 -14,175
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -19,711 289 -98.56 48.44 -954,840 14,000
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2022-11-17 2022-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -19,262 83,962 -18.66 49.52 -953,893 4,157,966
2022-11-17 2022-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -57,915 103,224 -35.94 49.97 -2,894,128 5,158,310
2022-05-13 2022-05-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,520 161,139 -1.54 49.31 -124,254 7,945,281
2022-05-12 2022-05-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 4,390 163,659 2.76
2022-03-23 2022-03-22 4 ALTR Altair Engineering Inc.
Stock Option (Right to Buy)
A - Award 80,000 80,000
2022-03-23 2022-03-22 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 23,000 159,269 16.88
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Stock Option (Right to Buy)
M - Exercise -19,305 10,695 -64.35
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -22 136,269 -0.02 59.99 -1,320 8,174,777
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,738 136,291 -1.26 58.48 -101,638 7,970,298
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
M - Exercise 19,305 138,029 16.26
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1 1,495 -0.07 59.86 -60 89,491
2022-03-18 2022-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -106 1,496 -6.62 58.48 -6,199 87,486
2022-03-18 2022-03-14 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -92 1,602 -5.43 59.96 -5,516 96,054
2022-03-18 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -83 1,694 -4.67 60.43 -5,016 102,368
2022-03-18 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1 1,777 -0.06 59.39 -59 105,536
2022-03-18 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 83 1,778 4.90
2022-03-18 2021-03-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -4 1,695 -0.24 60.54 -242 102,615
2022-03-18 2021-03-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -77 1,699 -4.34 59.45 -4,578 101,006
2022-03-18 2020-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -85 1,776 -4.57 24.61 -2,092 43,714
2022-03-18 2020-03-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 896 1,861 92.85
2022-03-18 2019-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 965 965
2022-03-16 2022-03-14 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,406 118,724 -1.17 59.96 -84,302 7,118,572
2022-03-09 2022-03-07 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,791 120,130 -1.47 64.55 -115,609 7,754,392
2022-02-02 2020-03-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,369 36,322 -6.12 28.83 -68,296 1,047,127
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,140 6,792,182 -0.28
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -23,669 10,426,610 -0.23
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -400 0 -100.00 72.73 -29,093
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,126 400 -94.69 72.32 -515,331 28,927
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,637 7,526 -46.86 71.11 -471,970 535,189
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,977 14,163 -26.00 70.07 -348,743 992,416
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,140 19,140
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -484 0 -100.00 72.73 -35,203
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,112 484 -94.96 72.32 -658,989 35,003
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,696 9,596 -44.51 71.13 -547,409 682,554
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,377 17,292 -26.94 70.10 -447,047 1,212,221
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 23,669 23,669
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,860 6,811,322 -0.13
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,867 10,450,279 -0.09
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,860 0 -100.00 78.27 -693,446
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,860 8,860
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,867 0 -100.00 78.27 -772,300
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,867 9,867
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,075 6,820,182 -0.10
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,099 10,460,146 -0.08
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,860 0 -100.00 79.35 -306,283
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,215 3,860 -45.44 78.88 -253,586 304,461
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,075 7,075
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,294 0 -100.00 79.33 -340,652
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,805 4,294 -46.98 78.86 -300,074 338,638
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,099 8,099
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,747 6,827,257 -0.10
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,751 10,468,245 -0.07
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 78.40 -7,840
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,647 100 -98.52 77.74 -516,758 7,774
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,747 6,747
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -135 0 -100.00 78.36 -10,579
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,616 135 -98.26 77.75 -592,114 10,496
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,751 7,751
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,076 6,834,004 -0.13
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,955 10,475,996 -0.11
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,270 0 -100.00 74.23 -613,857
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -806 8,270 -8.88 73.31 -59,090 606,299
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,076 9,076
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,195 0 -100.00 74.27 -608,675
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,760 8,195 -31.45 73.76 -277,353 604,496
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,955 11,955
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,756 6,843,080 -0.16
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,597 10,487,951 -0.14
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,456 0 -100.00 73.68 -770,440
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -300 10,456 -2.79 72.71 -21,813 760,266
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,756 10,756
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,097 0 -100.00 73.69 -1,038,780
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 14,097 -3.43 72.85 -36,424 1,026,938
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,597 14,597
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,168 6,853,836 -0.15
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,448 10,502,548 -0.13
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,346 0 -100.00 73.95 -321,404
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,822 4,346 -57.26 73.07 -425,402 317,554
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,168 10,168
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,826 0 -100.00 73.91 -504,503
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,622 6,826 -49.24 73.01 -483,459 498,353
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,448 13,448
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,571 6,864,004 -0.21
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -22,151 10,515,996 -0.21
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 76.11 -7,611
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 76.11 -7,611
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,600 100 -96.30 75.23 -195,608 7,523
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,871 2,700 -81.47 74.55 -885,019 201,293
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,571 14,571
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,925 100 -97.52 75.16 -295,023 7,516
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,126 4,025 -81.83 74.55 -1,351,257 300,056
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 22,151 22,151
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,865 6,878,575 -0.11
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,031 10,538,147 -0.09
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 75.68 -7,568
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,765 100 -98.73 75.10 -583,144 7,510
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,865 7,865
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,358 0 -100.00 75.55 -102,596
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,673 1,358 -84.96 75.02 -575,613 101,874
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,031 9,031
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,564 6,886,440 -0.11
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,818 10,547,178 -0.08
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,164 0 -100.00 75.52 -465,511
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,400 6,164 -18.51 74.96 -104,938 462,029
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,564 7,564
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,868 0 -100.00 75.60 -368,045
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,950 4,868 -44.79 75.14 -296,811 365,791
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,818 8,818
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,721 6,894,004 -0.14
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,907 10,555,996 -0.13
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,721 0 -100.00 70.95 -689,666
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,721 9,721
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 71.41 -14,282
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,707 200 -98.56 70.92 -972,100 14,184
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,907 13,907
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -5,659 6,903,725 -0.08
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,279 10,569,903 -0.07
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,659 0 -100.00 71.12 -402,445
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,659 5,659
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,279 0 -100.00 71.10 -517,559
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,279 7,279
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,620 6,909,384 -0.21
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,814 10,577,182 -0.18
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,109 0 -100.00 72.24 -874,766
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,511 12,109 -17.18 71.51 -179,554 865,878
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,620 14,620
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -15,661 0 -100.00 72.24 -1,131,398
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,153 15,661 -16.76 71.52 -225,512 1,120,122
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,814 18,814
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,742 6,924,004 -0.07
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,180 10,595,996 -0.11
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -442 0 -100.00 65.90 -29,128
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,100 442 -87.52 65.33 -202,520 28,875
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 3,542 -12.37 64.04 -32,018 226,819
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -700 4,042 -14.76 63.33 -44,332 255,984
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,742 4,742
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,266 0 -100.00 65.88 -83,404
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,203 1,266 -85.05 65.32 -470,478 82,691
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,411 8,469 -14.28 63.99 -90,288 541,923
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,300 9,880 -11.63 63.34 -82,343 625,809
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,180 11,180
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,081 6,928,746 -0.19
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,994 10,607,176 -0.14
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,012 0 -100.00 66.37 -266,260
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,822 4,012 -41.29 65.47 -184,745 262,650
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,247 6,834 -47.76 64.37 -402,126 439,911
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,081 13,081
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,773 0 -100.00 66.34 -316,631
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,844 4,773 -37.34 65.47 -186,188 312,474
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,377 7,617 -49.20 64.39 -474,998 490,451
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,994 14,994
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,177 6,941,827 -0.18
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,826 10,622,170 -0.13
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 67.88 -6,788
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,400 100 -96.00 66.66 -159,996 6,666
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,677 2,500 -79.47 65.84 -637,143 164,602
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,177 12,177
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -126 0 -100.00 67.80 -8,542
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,931 126 -95.88 66.66 -195,372 8,399
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,769 3,057 -77.89 65.83 -708,966 201,255
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,826 13,826
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,993 6,954,004 -0.14
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,940 10,635,996 -0.09
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -782 0 -100.00 63.38 -49,565
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,211 782 -92.17 62.97 -579,980 49,239
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,993 9,993
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 63.42 -12,685
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,740 200 -97.99 62.98 -613,425 12,596
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,940 9,940
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,127 6,963,997 -0.17
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,231 10,645,936 -0.17
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -63 0 -100.00 64.62 -4,071
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,014 63 -98.76 63.85 -320,164 4,023
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,050 5,077 -58.13 63.14 -445,172 320,587
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,127 12,127
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 64.64 -12,928
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,693 200 -97.47 63.82 -490,998 12,765
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,338 7,893 -56.71 63.13 -652,679 498,317
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,231 18,231
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,880 6,976,124 -0.11
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,829 10,664,167 -0.11
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 66.58 -6,658
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,272 100 -95.78 65.63 -149,116 6,563
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,508 2,372 -69.90 64.66 -356,175 153,385
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,880 7,880
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -196 0 -100.00 66.54 -13,042
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,418 196 -94.58 65.60 -224,224 12,858
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,215 3,614 -69.45 64.66 -531,207 233,692
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,829 11,829
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,130 6,984,004 -0.09
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,980 10,675,996 -0.12
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -994 0 -100.00 61.87 -61,502
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,136 994 -83.78 60.76 -312,048 60,392
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,130 6,130
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -600 0 -100.00 62.38 -37,430
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,156 600 -87.38 61.97 -257,556 37,183
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,224 4,756 -63.36 60.82 -500,184 289,260
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,980 12,980
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,445 6,990,134 -0.22
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -17,515 10,688,976 -0.16
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,786 0 -100.00 65.65 -182,898
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,179 2,786 -68.92 64.76 -400,164 180,427
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,480 8,965 -41.96 63.67 -412,588 570,811
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,445 15,445
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,681 0 -100.00 65.61 -241,503
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,802 3,681 -64.89 64.71 -440,144 238,190
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,032 10,483 -40.15 63.65 -447,580 667,232
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 17,515 17,515
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,425 7,005,579 -0.12
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,505 10,706,491 -0.09
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,425 0 -100.00 65.08 -548,291
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,425 8,425
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 65.77 -13,154
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,305 200 -97.90 65.08 -605,541 13,015
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,505 9,505
2021-05-13 2021-05-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,230 119,290 -1.84 64.34 -143,467 7,674,522
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -30,000 7,014,004 -0.43
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -40,000 10,715,996 -0.37
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -300 0 -100.00 65.99 -19,796
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,258 300 -96.03 65.20 -473,229 19,560
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,680 7,558 -38.24 64.29 -300,858 485,874
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,584 12,238 -27.25 63.37 -290,479 775,498
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,346 16,822 -24.12 62.43 -333,740 1,050,164
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,832 22,168 -26.11 61.42 -481,010 1,361,470
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 30,000 30,000
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,300 0 -100.00 66.18 -86,038
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,541 1,300 -85.30 65.20 -491,681 84,761
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,162 8,841 -36.86 64.30 -331,896 568,441
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,900 14,003 -29.64 63.31 -373,529 886,530
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,532 19,903 -21.75 62.35 -344,920 1,240,952
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,565 25,435 -36.41 61.42 -894,553 1,562,167
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 40,000 40,000
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,010 7,044,004 -0.06
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,998 10,755,996 -0.07
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -700 0 -100.00 60.64 -42,444
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,310 700 -82.54 60.16 -199,140 42,114
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,010 4,010
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,583 0 -100.00 60.54 -156,370
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,415 2,583 -63.09 60.08 -265,262 155,192
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,998 6,998
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -16,668 7,048,014 -0.24
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,086 10,762,994 -0.18
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,641 0 -100.00 61.59 -408,999
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,027 6,641 -60.16 60.64 -608,057 402,724
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 16,668 16,668
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,955 0 -100.00 61.71 -305,768
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,806 4,955 -68.56 60.90 -658,075 301,755
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,325 15,761 -17.42 60.20 -200,152 948,749
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,086 19,086
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
A - Award 40,000 40,000
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,322 7,064,682 -0.13
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,916 10,782,080 -0.13
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 20,000 121,520 19.70
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,320 0 -100.00 61.90 -267,404
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,402 4,320 -35.73 61.13 -146,832 264,077
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,600 6,722 -27.89 60.42 -157,092 406,143
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,322 9,322
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,521 0 -100.00 61.85 -465,151
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,895 7,521 -43.94 60.70 -357,850 456,555
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 13,416 -3.59 59.82 -29,908 802,505
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,916 13,916
2021-03-16 2021-03-12 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,845 101,520 -1.78 59.51 -109,794 6,041,354
2021-03-08 2021-03-05 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,186 103,365 -2.07 59.24 -129,499 6,123,343
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -3,755 10,795,996 -0.03
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -764 0 -100.00 61.51 -46,997
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,991 764 -79.65 61.01 -182,487 46,613
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 3,755 3,755
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,059 7,074,004 -0.20
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,062 10,799,751 -0.17
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -600 0 -100.00 64.22 -38,531
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,300 600 -79.31 63.41 -145,843 38,046
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,159 2,900 -79.37 62.35 -695,808 180,827
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,059 14,059
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -944 0 -100.00 64.08 -60,492
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,677 944 -73.93 63.30 -169,441 59,750
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,441 3,621 -79.95 62.28 -899,371 225,512
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,062 18,062
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,941 7,088,063 -0.22
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,183 10,817,813 -0.17
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -987 0 -100.00 67.89 -67,011
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,586 987 -82.29 67.29 -308,592 66,415
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,786 5,573 -40.45 66.29 -250,963 369,417
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,582 9,359 -41.29 65.10 -428,508 609,299
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,941 15,941
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,768 0 -100.00 67.87 -119,989
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,094 1,768 -74.23 67.11 -341,869 118,654
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,378 6,862 -38.95 66.18 -289,727 454,113
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,943 11,240 -38.18 65.05 -451,614 731,117
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,183 18,183
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,205 7,104,004 -0.10
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,430 10,835,996 -0.07
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,372 0 -100.00 62.12 -209,486
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,833 3,372 -53.20 61.69 -236,454 208,015
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,205 7,205
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,595 0 -100.00 62.06 -285,161
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,835 4,595 -38.16 61.63 -174,721 283,190
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,430 7,430
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,863 7,111,209 -0.14
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -17,737 10,843,426 -0.16
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,863 0 -100.00 60.67 -598,398
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,863 9,863
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -283 0 -100.00 61.27 -17,339
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,454 283 -98.40 60.66 -1,058,690 17,166
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 17,737 17,737
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,932 7,121,072 -0.18
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,201 0 -100.00 61.00 -195,277
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,731 3,201 -75.25 60.10 -584,882 192,396
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,932 12,932
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,361 0 -100.00 61.06 -205,236
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,472 3,361 -77.34 60.12 -689,731 202,073
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,833 14,833
2021-01-20 2021-01-05 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,833 10,861,163 -0.14
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -2,070 7,134,004 -0.03
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -3,906 10,875,996 -0.04
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -554 0 -100.00 58.28 -32,285
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,516 554 -73.24 57.64 -87,390 31,935
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 2,070 2,070
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,000 0 -100.00 58.33 -58,332
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,906 1,000 -74.40 57.67 -167,583 57,668
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 3,906 3,906
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,983 7,136,074 -0.13
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,082 10,879,902 -0.17
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -104 0 -100.00 57.55 -5,986
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,879 104 -98.84 57.00 -506,147 5,929
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,983 8,983
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -400 0 -100.00 57.57 -23,028
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,682 400 -97.79 57.00 -1,007,945 22,802
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,082 18,082
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,947 7,145,057 -0.13
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,012 10,897,984 -0.17
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,347 0 -100.00 56.88 -474,794
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -600 8,347 -6.71 56.12 -33,670 468,409
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,947 8,947
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,314 0 -100.00 57.07 -303,281
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,698 5,314 -70.50 56.73 -720,370 301,469
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,012 18,012
2020-12-14 2020-12-10 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
M - Exercise -57,915 30,000 -65.88
2020-12-14 2020-12-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
M - Exercise 57,915 105,551 121.58 5.18 300,000 546,754
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,535 7,154,004 -0.15
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -20,994 10,915,996 -0.19
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,583 0 -100.00 49.46 -276,141
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,952 5,583 -47.01 49.02 -242,767 273,701
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,535 10,535
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,631 0 -100.00 49.50 -427,260
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,363 8,631 -58.89 49.10 -606,999 423,765
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,994 20,994
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,465 7,164,539 -0.13
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,006 10,936,990 -0.17
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,312 0 -100.00 49.42 -114,271
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,153 2,312 -75.57 48.96 -350,211 113,196
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,465 9,465
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,898 0 -100.00 49.44 -192,725
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -15,108 3,898 -79.49 48.98 -739,945 190,912
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,006 19,006
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,384 7,174,004 -0.06
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,126 10,955,996 -0.08
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,384 0 -100.00 46.29 -202,940
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,384 4,384
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,126 0 -100.00 46.29 -422,452
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,126 9,126
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,052 7,178,388 -0.08
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,586 10,965,122 -0.11
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,052 0 -100.00 46.29 -280,147
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,052 6,052
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,586 0 -100.00 46.28 -536,212
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,586 11,586
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,564 7,184,440 -0.13
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,288 10,976,708 -0.18
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,564 0 -100.00 45.76 -437,696
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,564 9,564
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -874 0 -100.00 46.18 -40,360
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,414 874 -95.47 45.75 -842,404 39,984
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,288 19,288
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,116 7,194,004 -0.18
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -26,131 10,995,996 -0.24
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,445 0 -100.00 40.46 -301,232
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,661 7,445 -43.19 41.32 -233,884 307,590
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,116 13,116
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,287 0 -100.00 40.44 -577,795
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,844 14,287 -45.33 41.30 -489,134 590,025
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 26,131 26,131
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,884 7,207,120 -0.10
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,869 11,022,127 -0.13
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
M - Exercise -32,085 87,915 -26.74
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
M - Exercise -5,000 15,000 -25.00
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,884 0 -100.00 39.64 -272,902
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,884 6,884
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,869 0 -100.00 39.66 -549,975
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,869 13,869
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -32,085 47,636 -40.25 39.65 -1,272,299 1,888,958
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 32,085 79,721 67.35 5.18 166,200 412,955
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -5,000 47,636 -9.50 39.65 -198,270 1,888,958
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 52,636 10.50 36.19 180,950 1,904,897
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,951 7,214,004 -0.15
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -23,674 11,035,996 -0.21
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,391 0 -100.00 41.51 -99,241
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,560 2,391 -78.17 40.94 -350,438 97,885
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,951 10,951
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,826 0 -100.00 41.52 -407,976
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,848 9,826 -58.49 40.91 -566,508 401,972
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 23,674 23,674
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,049 7,224,955 -0.13
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -16,326 11,059,670 -0.15
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,049 0 -100.00 40.43 -365,887
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,049 9,049
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -101 0 -100.00 40.84 -4,124
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,225 101 -99.38 40.43 -656,025 4,084
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 16,326 16,326
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -1,088 7,234,004 -0.02
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,576 11,075,996 -0.06
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 38.39 -3,839
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -988 100 -90.81 37.71 -37,260 3,771
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 1,088 1,088
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,358 0 -100.00 38.20 -90,087
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,218 2,358 -64.14 37.62 -158,685 88,710
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,576 6,576
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,705 7,235,092 -0.12
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,821 11,082,572 -0.13
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -100 0 -100.00 37.59 -3,759
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -8,605 100 -98.85 37.21 -320,192 3,721
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,705 8,705
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,821 0 -100.00 37.21 -551,504
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,821 14,821
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,207 7,243,797 -0.14
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,603 11,097,393 -0.17
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,207 0 -100.00 37.99 -387,784
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,207 10,207
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 38.68 -3,868
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,503 100 -99.46 38.00 -703,058 3,800
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,603 18,603
2020-04-10 2020-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,055 47,636 -4.14 27.32 -56,143 1,301,416
2020-03-12 2020-03-11 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
A - Award 40,000 40,000
2020-03-12 2020-03-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 16,000 49,691 47.49
2020-03-11 2020-03-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -2,369 33,691 -6.57 28.83 -68,296 971,278
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -30,534 11,115,996 -0.27
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -30,534 0 -100.00 32.49 -992,172
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 30,534 30,534
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -5,025 7,258,979 -0.07
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -20,131 11,175,865 -0.18
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -874 0 -100.00 34.70 -30,324
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,151 874 -82.61 33.86 -140,569 29,597
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,025 5,025
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,500 0 -100.00 34.73 -86,832
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,631 2,500 -87.58 33.90 -597,691 84,750
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,131 20,131
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,975 7,254,004 -0.07
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -29,335 11,146,530 -0.26
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,975 0 -100.00 32.84 -163,354
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,975 4,975
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -29,335 0 -100.00 32.87 -964,329
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 29,335 29,335
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,040 11,195,996 -0.04
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,040 0 -100.00 33.83 -136,673
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,040 4,040
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,000 7,264,004 -0.14
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -75,960 11,200,036 -0.67
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 0 -100.00 34.15 -17,075
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,500 500 -95.00 33.73 -320,435 16,865
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,000 10,000
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,100 0 -100.00 34.12 -105,772
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -72,860 3,100 -95.92 33.47 -2,438,624 103,757
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 75,960 75,960
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -5,186 7,274,004 -0.07
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,814 7,279,190 -0.07
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 41.02 -4,102
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,086 100 -98.07 40.34 -205,169 4,034
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,186 5,186
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -300 0 -100.00 41.01 -12,303
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -64,402 300 -99.54 40.39 -2,601,197 12,117
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 64,702 64,702
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -64,702 11,275,996 -0.57
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,298 11,340,698 -0.13
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -643 0 -100.00 42.28 -27,186
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,171 643 -86.64 41.45 -172,888 26,652
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,814 4,814
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,517 0 -100.00 42.30 -106,469
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,781 2,517 -83.55 41.40 -529,133 104,204
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,298 15,298
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -1,491 7,284,004 -0.02
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -25,516 11,355,996 -0.22
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,491 0 -100.00 40.43 -60,281
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 1,491 1,491
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -25,516 0 -100.00 40.42 -1,031,357
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 25,516 25,516
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,509 7,285,495 -0.12
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -54,484 11,381,512 -0.48
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,509 0 -100.00 40.94 -348,358
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,509 8,509
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 0 -100.00 41.33 -20,665
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -53,984 500 -99.08 40.93 -2,209,565 20,465
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 54,484 54,484
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,300 11,435,996 -0.06
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,284 0 -100.00 37.93 -48,697
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,016 1,284 -79.62 37.52 -188,215 48,180
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,300 6,300
2019-06-05 2019-03-06 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,309 18,691 -6.54 35.64 -46,653 666,147
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -10,000 7,294,004 -0.14
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -73,700 11,442,296 -0.64
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 37.87 -3,787
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,900 100 -99.00 36.84 -364,716 3,684
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 10,000 10,000
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,500 0 -100.00 37.78 -56,673
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -72,200 1,500 -97.96 36.84 -2,659,848 55,260
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 73,700 73,700
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -1,029 7,304,004 -0.01
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -77,121 11,515,996 -0.67
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,029 0 -100.00 37.02 -38,094
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 1,029 1,029
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -77,121 0 -100.00 37.04 -2,856,562
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 77,121 77,121
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,059 7,305,033 -0.06
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,685 11,593,117 -0.11
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,059 0 -100.00 36.88 -149,696
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,059 4,059
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,685 0 -100.00 36.89 -467,950
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,685 12,685
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,912 7,309,092 -0.07
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,200 11,605,802 -0.13
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -700 0 -100.00 39.09 -27,362
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,212 700 -85.75 38.17 -160,772 26,719
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,912 4,912
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,875 0 -100.00 38.94 -111,967
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,325 2,875 -81.09 38.14 -470,112 109,661
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,200 15,200
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,399 7,314,004 -0.06
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -24,328 11,621,002 -0.21
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,399 0 -100.00 36.90 -162,301
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,399 4,399
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -24,328 0 -100.00 36.90 -897,776
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 24,328 24,328
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -3,301 7,318,403 -0.05
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -16,152 11,645,330 -0.14
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,301 0 -100.00 36.78 -121,401
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 3,301 3,301
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,152 0 -100.00 36.79 -594,184
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 16,152 16,152
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -2,300 7,321,704 -0.03
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,514 11,661,482 -0.12
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,300 0 -100.00 37.15 -85,438
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 2,300 2,300
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -900 0 -100.00 37.50 -33,752
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,614 900 -93.80 37.12 -505,284 33,404
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,514 14,514
2019-03-26 2019-03-22 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
A - Award 20,000 20,000
2019-03-26 2019-03-22 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 20,000 40,000 100.00
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -100,000 7,324,004 -1.35
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -975,420 11,675,996 -7.71
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -100,000 0 -100.00 33.42 -3,342,500
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 100,000 100,000
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -975,420 0 -100.00 33.42 -32,603,414
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 975,420 975,420
2018-02-21 2018-02-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
A - Award 20,000 20,000
2017-11-03 2017-11-03 4 ALTR Altair Engineering Inc.
Stock Option (right to buy)
M - Exercise -1,734,996 0 -100.00
2017-11-03 2017-11-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -1,734,996 0 -100.00 12.09 -20,976,102
2017-11-03 2017-11-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
M - Exercise 1,734,996 1,734,996 0.64 1,110,397 1,110,397
P
非衍生或衍生證券的公開市場或私下買入
S
非衍生或衍生證券的公開市場或私下賣出
A
公司向內部人員授予、獎勵或以其他方式獲取證券(例如股票期權)
C
衍生工具轉換
D
將證券賣出或轉讓回公司
F
使用從公司收到的證券的一部分來支付行使價或稅務負擔。
G
內部人士贈送或接收他人贈送公司股票
K
股權掉期和類似的避險交易
M
行使或轉換從公司獲得的衍生證券(例如期權)
V
內部人士透過Form 4自願報告的一筆交易
J
其他(附有交易描述的腳註)