杜比實驗室公司
US ˙ NYSE ˙ US25659T1079

簡介

本頁面提供了有關 Lewis Chew 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。

查看排名最高的內部人士。
報告內部持倉的公司

SEC文件顯示Lewis Chew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:ANET / Arista Networks, Inc. Director 31,232
US:CDNS / Cadence Design Systems, Inc. Director 9,131
US:ISRG / Intuitive Surgical, Inc. Director 1,314
US:DLB / Dolby Laboratories, Inc. EVP & Chief Financial Officer 10,625
US:PCG / PG&E Corporation Director 26,634
如何解讀這些圖表

以下圖表顯示了在Lewis Chew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。

DLB / Dolby Laboratories, Inc.內部人士買入 - 短期收益分析

在這一部分，我們分析了在 DLB / Dolby Laboratories, Inc. 中進行的每筆非計劃的公開市場內部人士購買的盈利情況。這種分析有助於了解內部人士是否持續產生異常的回報，以及是否值得跟踪。該分析基於每筆交易後一年的情況，結果僅為理論值。

以下表格顯示了最近的自動交易計劃之外的公開市場購買。

交易日期 證券代碼 內部人士 報告
股數		 Reported
價格		 經調整
股數		 經調整
價格		 成本基礎 達到最高利潤的
天數		 達到最高利潤時的
價格		 最高
淨利 ($)		 最高回報率（%）
當前未知該內部人士及證券組合進行過任何未預先計劃的公開市場交易。

經調整價格 已按拆股調整。經調整股數 已按拆股調整。

DLB / Dolby Laboratories, Inc. Insider Trades
DLB / Dolby Laboratories, Inc.內部人士賣出 - 短期虧損分析

在這一部分，我們分析了在 DLB / Dolby Laboratories, Inc. 中進行的每筆非計劃的公開市場內部人士賣出所達成的短期虧損規避。如果存在持續的虧損規避模式，可能表明未來的內部人士賣出交易預示著價格的下跌。該分析基於每筆交易後一年的情況，

以下表格顯示了最近的自動交易計劃之外的公開市場購買。

交易日期 證券代碼 內部人士 報告
股數		 Reported
價格		 經調整
股數		 經調整
價格		 成本基礎 達到最低利潤的
天數		 達到最低利潤時的
價格		 避免的
最高損失金額($)		 避免的
最高損失率($)
2021-08-17 DLB CHEW LEWIS 2,800 101.6754 2,800 101.6754 284,691 209 69.7100 -89,503 -31.44
2021-08-17 DLB CHEW LEWIS 4,900 100.8240 4,900 100.8240 494,038
2021-08-17 DLB CHEW LEWIS 14,870 99.6483 14,870 99.6483 1,481,770
2021-08-17 DLB CHEW LEWIS 7,430 99.1965 7,430 99.1965 737,030
2021-08-06 DLB CHEW LEWIS 12,600 98.2604 12,600 98.2604 1,238,081
2021-08-06 DLB CHEW LEWIS 2,400 98.8658 2,400 98.8658 237,278
2021-08-05 DLB CHEW LEWIS 20,698 97.3849 20,698 97.3849 2,015,673
2021-08-05 DLB CHEW LEWIS 9,302 97.8609 9,302 97.8609 910,302
2021-08-04 DLB CHEW LEWIS 10,000 97.9893 10,000 97.9893 979,893
2021-08-04 DLB CHEW LEWIS 20,000 97.2941 20,000 97.2941 1,945,882
2021-08-03 DLB CHEW LEWIS 20,000 99.5356 20,000 99.5356 1,990,712
2021-05-20 DLB CHEW LEWIS 30,918 96.6737 30,918 96.6737 2,988,957
2021-02-02 DLB CHEW LEWIS 30,000 90.8223 30,000 90.8223 2,724,669
2020-11-17 DLB CHEW LEWIS 23,652 89.4517 23,652 89.4517 2,115,712
2020-11-17 DLB CHEW LEWIS 7,000 89.1095 7,000 89.1095 623,766
2020-08-05 DLB CHEW LEWIS 36,500 69.7872 36,500 69.7872 2,547,233
2020-05-13 DLB CHEW LEWIS 10,000 54.7895 10,000 54.7895 547,895
2020-02-07 DLB CHEW LEWIS 4,400 70.7957 4,400 70.7957 311,501
2020-02-07 DLB CHEW LEWIS 33,500 71.0405 33,500 71.0405 2,379,857
2019-11-25 DLB CHEW LEWIS 30,000 69.2195 30,000 69.2195 2,076,585
2019-11-25 DLB CHEW LEWIS 2,185 69.0617 2,185 69.0617 150,900
2019-08-20 DLB CHEW LEWIS 15,000 60.3327 15,000 60.3327 904,990
2019-05-09 DLB CHEW LEWIS 26,200 63.6704 26,200 63.6704 1,668,164
2019-05-09 DLB CHEW LEWIS 8,800 62.6372 8,800 62.6372 551,207
2019-02-08 DLB CHEW LEWIS 35,000 63.2755 35,000 63.2755 2,214,642
2018-11-02 DLB CHEW LEWIS 16,214 68.7794 16,214 68.7794 1,115,189
2018-11-02 DLB CHEW LEWIS 700 69.3157 700 69.3157 48,521
2018-11-01 DLB CHEW LEWIS 18,086 70.0318 18,086 70.0318 1,266,595
2018-08-07 DLB CHEW LEWIS 17,000 65.4651 17,000 65.4651 1,112,907
2018-05-17 DLB CHEW LEWIS 17,000 62.5789 17,000 62.5789 1,063,841
2018-02-27 DLB CHEW LEWIS 17,000 63.1469 17,000 63.1469 1,073,497
2017-11-10 DLB CHEW LEWIS 17,000 59.5482 17,000 59.5482 1,012,319
2017-05-17 DLB CHEW LEWIS 14,300 50.3396 14,300 50.3396 719,856
2016-11-21 DLB CHEW LEWIS 15,000 46.8500 15,000 46.8500 702,750
2016-08-29 DLB CHEW LEWIS 12,000 49.7900 12,000 49.7900 597,480
2016-05-13 DLB CHEW LEWIS 20,000 45.4909 20,000 45.4909 909,818
2015-10-26 DLB CHEW LEWIS 8,415 34.7980 8,415 34.7980 292,825

經調整價格 已按拆股調整。經調整股數 已按拆股調整。

DLB / Dolby Laboratories, Inc. Insider Trades
PCG.PRX / PG&E Corporation - Preferred Security內部人士買入 - 短期收益分析

在這一部分，我們分析了在 DLB / Dolby Laboratories, Inc. 中進行的每筆非計劃的公開市場內部人士購買的盈利情況。這種分析有助於了解內部人士是否持續產生異常的回報，以及是否值得跟踪。該分析基於每筆交易後一年的情況，結果僅為理論值。

以下表格顯示了最近的自動交易計劃之外的公開市場購買。

交易日期 證券代碼 內部人士 報告
股數		 Reported
價格		 經調整
股數		 經調整
價格		 成本基礎 達到最高利潤的
天數		 達到最高利潤時的
價格		 最高
淨利 ($)		 最高回報率（%）
當前未知該內部人士及證券組合進行過任何未預先計劃的公開市場交易。

經調整價格 已按拆股調整。經調整股數 已按拆股調整。

PCG.PRX / PG&E Corporation - Preferred Security Insider Trades
PCG.PRX / PG&E Corporation - Preferred Security內部人士賣出 - 短期虧損分析

在這一部分，我們分析了在 DLB / Dolby Laboratories, Inc. 中進行的每筆非計劃的公開市場內部人士賣出所達成的短期虧損規避。如果存在持續的虧損規避模式，可能表明未來的內部人士賣出交易預示著價格的下跌。該分析基於每筆交易後一年的情況，

以下表格顯示了最近的自動交易計劃之外的公開市場購買。

交易日期 證券代碼 內部人士 報告
股數		 Reported
價格		 經調整
股數		 經調整
價格		 成本基礎 達到最低利潤的
天數		 達到最低利潤時的
價格		 避免的
最高損失金額($)		 避免的
最高損失率($)
當前未知該內部人士及證券組合進行過任何未預先計劃的公開市場交易。

經調整價格 已按拆股調整。經調整股數 已按拆股調整。

PCG.PRX / PG&E Corporation - Preferred Security Insider Trades
歷史內部人交易

該表格顯示了由 Lewis Chew 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
2026-05-22 2026-05-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 971 31,232 3.21
2026-05-11 2026-05-07 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 714 9,131 8.48
2026-04-30 2026-04-30 4 ISRG INTUITIVE SURGICAL INC
Common Stock 		M - Exercise 531 1,314 67.82
2026-02-24 2026-02-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 971 30,261 3.32
2025-11-24 2025-11-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 971 29,290 3.43
2025-08-22 2025-08-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 971 28,319 3.55
2025-05-22 2025-05-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 844 27,348 3.18
2025-05-12 2025-05-08 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 779 8,417 10.20
2025-04-25 2025-04-25 4 ISRG INTUITIVE SURGICAL INC
Common Stock 		M - Exercise 739 783 1,679.55
2025-02-24 2025-02-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 844 26,504 3.29
2024-11-22 2024-11-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 212 6,415 3.42
2024-08-22 2024-08-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 211 6,203 3.52
2024-05-22 2024-05-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 372 5,992 6.62
2024-05-06 2024-05-02 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 868 7,638 12.82
2024-04-25 3 ISRG INTUITIVE SURGICAL INC
Common Stock 		44
2024-02-22 2024-02-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 373 5,620 7.11
2023-11-22 2023-11-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 372 5,247 7.63
2023-08-23 2023-08-21 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 373 4,875 8.29
2023-05-24 2023-05-22 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 510 4,502 12.78
2023-05-08 2023-05-04 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 1,073 6,770 18.83
2023-02-23 2023-02-21 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 511 3,992 14.68
2022-11-23 2022-11-21 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 510 3,481 17.17
2022-08-24 2022-08-22 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 511 2,971 20.77
2022-05-24 2022-05-20 4 ANET Arista Networks, Inc.
Restricted Stock Unit-1 		M - Exercise -616 0 -100.00
2022-05-24 2022-05-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 616 2,460 33.41
2022-05-09 2022-05-05 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 1,473 5,697 34.87
2022-02-24 2022-02-22 4 ANET Arista Networks, Inc.
Restricted Stock Unit-1 		M - Exercise -612 616 -49.84
2022-02-24 2022-02-22 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 612 1,844 49.68
2021-11-24 2021-11-22 4 ANET Arista Networks, Inc.
Restricted Stock Unit-1 		M - Exercise -616 1,228 -33.41
2021-11-24 2021-11-22 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 616 1,232 100.00
2021-08-24 2021-08-20 4 ANET Arista Networks, Inc.
Restricted Stock Unit-1 		M - Exercise -154 461 -25.04
2021-08-24 2021-08-20 4 ANET Arista Networks, Inc.
Common Stock 		M - Exercise 154 154
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -30,000 10,625 -73.85
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -7,430 105,598 -6.57 99.20 -737,030 10,474,952
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -14,870 113,028 -11.63 99.65 -1,481,770 11,263,048
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -4,900 127,898 -3.69 100.82 -494,038 12,895,188
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -2,800 132,798 -2.06 101.68 -284,691 13,502,290
2021-08-18 2021-08-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 30,000 135,598 28.41 33.15 994,500 4,495,074
2021-08-09 2021-08-06 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -15,000 0 -100.00
2021-08-09 2021-08-06 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -2,400 105,598 -2.22 98.87 -237,278 10,440,031
2021-08-09 2021-08-06 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -12,600 107,998 -10.45 98.26 -1,238,081 10,611,927
2021-08-09 2021-08-06 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 15,000 120,598 14.20 33.15 497,250 3,997,824
2021-08-09 2021-08-05 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -30,000 15,000 -66.67
2021-08-09 2021-08-05 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -9,302 105,598 -8.10 97.86 -910,302 10,333,915
2021-08-09 2021-08-05 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -20,698 114,900 -15.26 97.38 -2,015,673 11,189,525
2021-08-09 2021-08-05 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 30,000 135,598 28.41 33.15 994,500 4,495,074
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -20,000 45,000 -30.77
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -10,000 0 -100.00
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -20,000 105,598 -15.92 97.29 -1,945,882 10,274,062
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 20,000 125,598 18.94 33.15 663,000 4,163,574
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -10,000 105,598 -8.65 97.99 -979,893 10,347,474
2021-08-05 2021-08-04 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 10,000 115,598 9.47 42.98 429,800 4,968,402
2021-08-05 2021-08-03 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -20,000 10,000 -66.67
2021-08-05 2021-08-03 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -20,000 105,598 -15.92 99.54 -1,990,712 10,510,760
2021-08-05 2021-08-03 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 20,000 125,598 18.94 42.98 859,600 5,398,202
2021-07-21 2021-07-19 4 ANET Arista Networks, Inc.
Restricted Stock Unit-1 		A - Award 615 615
2021-05-20 2021-05-20 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -30,918 30,000 -50.75
2021-05-20 2021-05-20 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -30,918 105,598 -22.65 96.67 -2,988,957 10,208,549
2021-05-20 2021-05-20 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 30,918 136,516 29.28 42.98 1,328,856 5,867,458
2021-03-01 2021-02-25 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 1,377 4,224 48.37
2021-02-04 2021-02-02 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -30,000 60,918 -33.00
2021-02-04 2021-02-02 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -30,000 105,598 -22.12 90.82 -2,724,669 9,590,653
2021-02-04 2021-02-02 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 30,000 135,598 28.41 42.98 1,289,400 5,828,002
2020-12-21 2020-12-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -1,612 105,598 -1.50 91.03 -146,740 9,612,586
2020-12-17 2020-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -1,637 107,210 -1.50 92.08 -150,735 9,871,897
2020-12-17 2020-12-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 30,553 30,553
2020-12-17 2020-12-15 4 DLB Dolby Laboratories, Inc.
Performance-Based Restricted Stock Unit 		A - Award 7,136 7,136
2020-12-17 2020-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 14,272 108,847 15.09
2020-12-17 2020-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,472 94,575 -3.54 90.86 -315,466 8,593,084
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -7,000 90,918 -7.15
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -23,652 0 -100.00
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -7,000 98,047 -6.66 89.11 -623,766 8,736,919
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 7,000 105,047 7.14 42.98 300,860 4,514,920
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -23,652 98,047 -19.43 89.45 -2,115,712 8,770,471
2020-11-18 2020-11-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 23,652 121,699 24.12 37.35 883,402 4,545,458
2020-08-06 2020-08-05 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -36,500 23,652 -60.68
2020-08-06 2020-08-05 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -36,500 98,047 -27.13 69.79 -2,547,233 6,842,426
2020-08-06 2020-08-05 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 36,500 134,547 37.23 37.35 1,363,275 5,025,330
2020-05-14 2020-05-13 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -10,000 60,152 -14.25
2020-05-14 2020-05-13 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -10,000 98,047 -9.26 54.79 -547,895 5,371,946
2020-05-14 2020-05-13 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 10,000 108,047 10.20 37.35 373,500 4,035,555
2020-03-17 3 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		94
2020-03-17 3 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		94
2020-03-17 3 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		94
2020-03-17 2020-03-15 4 CDNS CADENCE DESIGN SYSTEMS INC
Common Stock 		A - Award 2,800 2,847 5,957.45
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -33,500 70,152 -32.32
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -4,400 0 -100.00
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -33,500 98,047 -25.47 71.04 -2,379,857 6,965,308
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 33,500 131,547 34.17 37.35 1,251,225 4,913,280
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -4,400 98,047 -4.29 70.80 -311,501 6,941,306
2020-02-10 2020-02-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 4,400 102,447 4.49 30.49 134,156 3,123,609
2019-12-18 2019-12-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -1,612 98,047 -1.62 68.40 -110,261 6,706,415
2019-12-18 2019-12-16 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 60,000 60,000
2019-12-18 2019-12-16 4 DLB Dolby Laboratories, Inc.
Performance-Based Restricted Stock Unit 		A - Award 6,600 6,600
2019-12-18 2019-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 13,200 99,659 15.27
2019-12-18 2019-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -5,487 86,459 -5.97 67.75 -371,744 5,857,597
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -2,185 0 -100.00
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -30,000 4,400 -87.21
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -2,185 91,946 -2.32 69.06 -150,900 6,349,947
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 2,185 94,131 2.38 37.96 82,943 3,573,213
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -30,000 91,946 -24.60 69.22 -2,076,585 6,364,456
2019-11-26 2019-11-25 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 30,000 121,946 32.63 30.49 914,700 3,718,134
2019-08-22 2019-08-20 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -15,000 34,400 -30.36
2019-08-22 2019-08-20 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -15,000 91,946 -14.03 60.33 -904,990 5,547,350
2019-08-22 2019-08-20 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 15,000 106,946 16.31 30.49 457,350 3,260,784
2019-05-09 2019-05-09 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -35,000 2,185 -94.12
2019-05-09 2019-05-09 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -8,800 91,946 -8.73 62.64 -551,207 5,759,240
2019-05-09 2019-05-09 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -26,200 100,746 -20.64 63.67 -1,668,164 6,414,538
2019-05-09 2019-05-09 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 35,000 126,946 38.07 37.96 1,328,600 4,818,870
2019-02-12 2019-02-08 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -35,000 37,185 -48.49
2019-02-12 2019-02-08 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -35,000 91,946 -27.57 63.28 -2,214,642 5,817,929
2019-02-12 2019-02-08 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 35,000 126,946 38.07 37.96 1,328,600 4,818,870
2018-12-19 2018-12-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 52,000 52,000
2018-12-19 2018-12-17 4 DLB Dolby Laboratories, Inc.
Performance-Based Stock Option (Right to Buy) 		A - Award 26,000 26,000
2018-12-19 2018-12-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 13,000 91,946 16.47
2018-12-19 2018-12-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -7,424 78,946 -8.60 66.17 -491,246 5,223,857
2018-11-05 2018-11-02 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -16,914 72,185 -18.98
2018-11-05 2018-11-02 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -700 86,370 -0.80 69.32 -48,521 5,986,797
2018-11-05 2018-11-02 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -16,214 87,070 -15.70 68.78 -1,115,189 5,988,622
2018-11-05 2018-11-02 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 16,914 103,284 19.58 37.96 642,055 3,920,661
2018-11-05 2018-11-01 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -18,086 89,099 -16.87
2018-11-05 2018-11-01 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -18,086 86,370 -17.31 70.03 -1,266,595 6,048,647
2018-11-05 2018-11-01 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 18,086 104,456 20.94 37.96 686,545 3,965,150
2018-08-09 2018-08-07 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -17,000 107,185 -13.69
2018-08-09 2018-08-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -17,000 86,370 -16.45 65.47 -1,112,907 5,654,221
2018-08-09 2018-08-07 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 17,000 103,370 19.68 37.96 645,320 3,923,925
2018-05-24 2018-05-22 4 PCG PG&E Corp
Common Stock 		A - Award 3,208 26,634 13.69
2018-05-17 2018-05-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -17,000 124,185 -12.04
2018-05-17 2018-05-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -17,000 86,370 -16.45 62.58 -1,063,841 5,404,940
2018-05-17 2018-05-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 17,000 103,370 19.68 37.96 645,320 3,923,925
2018-03-01 2018-02-27 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -17,000 141,185 -10.75
2018-03-01 2018-02-27 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -17,000 86,370 -16.45 63.15 -1,073,497 5,453,998
2018-03-01 2018-02-27 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 17,000 103,370 19.68 37.96 645,320 3,923,925
2017-12-19 2017-12-18 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -2,544 86,370 -2.86 62.32 -158,542 5,382,578
2017-12-19 2017-12-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 56,000 56,000
2017-12-19 2017-12-15 4 DLB Dolby Laboratories, Inc.
Performance-Based Stock Option (Right to Buy) 		A - Award 28,000 28,000
2017-12-19 2017-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 14,000 88,914 18.69
2017-12-19 2017-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -5,985 74,914 -7.40 60.99 -365,025 4,569,005
2017-11-13 2017-11-10 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -17,000 158,185 -9.70
2017-11-13 2017-11-10 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -17,000 80,899 -17.36 59.55 -1,012,319 4,817,390
2017-11-13 2017-11-10 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 17,000 97,899 21.01 37.96 645,320 3,716,246
2017-05-31 2017-05-30 4 PCG PG&E Corp
Common Stock 		A - Award 2,062 23,364 9.68
2017-05-17 2017-05-17 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -14,300 49,400 -22.45
2017-05-17 2017-05-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -14,300 80,899 -15.02 50.34 -719,856 4,072,423
2017-05-17 2017-05-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 14,300 95,199 17.68 30.49 436,007 2,902,618
2016-12-22 2016-12-21 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,001 80,899 -3.58 46.30 -138,946 3,745,624
2016-12-19 2016-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -2,544 83,900 -2.94 45.86 -116,668 3,847,654
2016-12-19 2016-12-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 56,000 56,000
2016-12-19 2016-12-15 4 DLB Dolby Laboratories, Inc.
Performance-Based Stock Option (Right to Buy) 		A - Award 28,000 28,000
2016-12-19 2016-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -4,160 86,444 -4.59 45.50 -189,280 3,933,202
2016-12-19 2016-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 14,000 90,604 18.28
2016-11-22 2016-11-21 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -15,000 63,700 -19.06
2016-11-22 2016-11-21 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -15,000 76,604 -16.37 46.85 -702,750 3,588,897
2016-11-22 2016-11-21 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 15,000 91,604 19.58 30.49 457,350 2,793,006
2016-08-31 2016-08-29 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -12,000 175,185 -6.41
2016-08-31 2016-08-29 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -12,000 76,604 -13.54 49.79 -597,480 3,814,113
2016-08-31 2016-08-29 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 12,000 88,604 15.66 37.96 455,520 3,363,408
2016-06-16 2016-06-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,669 76,604 -4.57 46.76 -171,562 3,582,003
2016-05-27 2016-05-26 4 PCG PG&E Corp
Common Stock 		A - Award 2,357 21,187 12.52
2016-05-17 2016-05-13 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (right to buy) 		M - Exercise -20,000 78,700 -20.26
2016-05-17 2016-05-13 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -20,000 80,273 -19.95 45.49 -909,818 3,651,691
2016-05-17 2016-05-13 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		M - Exercise 20,000 100,273 24.91 30.49 609,800 3,057,324
2015-12-22 2015-12-21 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,001 80,273 -3.60 33.74 -101,254 2,708,411
2015-12-17 2015-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -1,895 83,274 -2.22 34.01 -64,449 2,832,149
2015-12-17 2015-12-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 65,000 65,000
2015-12-17 2015-12-15 4 DLB Dolby Laboratories, Inc.
Performance-Based Stock Option (Right to Buy) 		A - Award 32,500 32,500
2015-12-17 2015-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -1,469 85,169 -1.70 33.15 -48,697 2,823,352
2015-12-17 2015-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 16,250 86,638 23.09
2015-12-17 2014-12-15 4/A DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 97,918 97,918
2015-10-27 2015-10-26 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		S - Sale -8,415 70,388 -10.68 34.80 -292,825 2,449,362
2015-06-16 2015-06-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,669 78,803 -4.45 38.89 -142,687 3,064,649
2015-06-02 2015-05-29 4 PCG PG&E Corp
Common Stock 		A - Award 2,244 18,709 13.63
2014-12-23 2014-12-22 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,001 82,472 -3.51 44.08 -132,284 3,635,366
2014-12-18 2014-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -2,208 85,473 -2.52 42.49 -93,818 3,631,748
2014-12-17 2014-12-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 97,918 97,918
2014-12-17 2014-12-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 15,632 87,681 21.70
2014-06-17 2014-06-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,669 72,049 -4.85 42.10 -154,465 3,033,263
2014-05-16 2014-05-14 4 PCG PG&E Corp
Common Stock 		A - Award 2,398 16,332 17.21
2013-12-26 2013-12-23 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -2,161 75,718 -2.77 38.56 -83,328 2,919,686
2013-12-18 2013-12-16 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 103,652 103,652
2013-12-18 2013-12-16 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 19,498 77,879 33.40
2013-06-20 2013-06-11 4/A PCG PG&E Corp
Common Stock 		A - Award 2,355 13,780 20.61
2013-06-20 2013-06-17 4/A DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,669 58,381 -5.91 34.07 -125,003 1,989,041
2013-06-18 2013-06-17 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		F - Taxes -3,669 58,381 -5.91 34.07 -125,003 1,989,041
2013-06-13 2013-06-11 4 PCG PG&E Corp
Common Stock 		A - Award 2,018 13,443 17.66
2012-12-21 2012-12-21 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 98,700 98,700
2012-12-21 2012-12-21 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 23,000 62,050 58.90
2012-06-18 2012-06-15 4 DLB Dolby Laboratories, Inc.
Employee Stock Option (Right to Buy) 		A - Award 168,075 168,075
2012-06-18 2012-06-15 4 DLB Dolby Laboratories, Inc.
Class A Common Stock 		A - Award 39,050 39,050
2012-05-15 2012-05-14 4 PCG PG&E CORP
Common Stock 		A - Award 2,041 11,290 22.07
2012-03-07 2012-03-06 4 PCG PG&E CORP
Common Stock 		P - Purchase X 2,500 9,216 37.22 41.77 104,425 384,963
2012-03-07 2012-03-05 4 PCG PG&E CORP
Common Stock 		P - Purchase X 2,500 6,716 59.29 41.99 104,975 282,016
2009-09-22 3 PCG PG&E CORP
Common Stock 		20
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）