阿美特克公司
MX ˙ BMV ˙ US0311001004
SecurityMX:AME / AMETEK, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership2,350,147 shares
Latest Disclosed Value $ 503,777,511
Northern Trust Corp reports 0.55% increase in ownership of AME / AMETEK, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 2,350,147 shares of AMETEK, Inc. (MX:AME) valued at $503,777,511 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,337,208 shares of AMETEK, Inc.. This represents a change in shares of 0.55% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F AMETEK COM 031100100 2,350,147 12,939 0.55 503,778 4.99 0.0137
2026-02-17 2025-12-31 13F AMETEK COM 031100100 2,337,208 -99,029 -4.06 479,852 4.77 0.0612
2025-11-14 2025-09-30 13F AMETEK COM 031100100 2,436,237 10,510 0.43 458,013 4.34 0.0586
2025-08-13 2025-06-30 13F AMETEK COM 031100100 2,425,727 -45,748 -1.85 438,960 3.18 0.0604
2025-05-13 2025-03-31 13F AMETEK COM 031100100 2,471,475 95,503 4.02 425,440 -0.67 0.0632
2025-02-14 2024-12-31 13F AMETEK COM 031100100 2,375,972 342,589 16.85 428,293 22.67 0.0606
2024-11-13 2024-09-30 13F AMETEK COM 031100100 2,033,383 -95,909 -4.50 349,152 -1.64 0.0572
2024-08-14 2024-06-30 13F AMETEK COM 031100100 2,129,292 -76,112 -3.45 354,974 -12.00 0.0598
2024-05-14 2024-03-31 13F AMETEK COM 031100100 2,205,404 -81,624 -3.57 403,368 6.96 0.0697
2024-02-13 2023-12-31 13F AMETEK COM 031100100 2,287,028 -75,439 -3.19 377,108 8.03 0.0683
2023-11-13 2023-09-30 13F AMETEK COM 031100100 2,362,467 96,793 4.27 349,078 -4.82 0.0676
2023-08-11 2023-06-30 13F AMETEK COM 031100100 2,265,674 -60,779 -2.61 366,767 8.48 0.0705
2023-05-15 2023-03-31 13F AMETEK COM 031100100 2,326,453 14,461 0.63 338,103 4.67 0.0670
2023-02-13 2022-12-31 13F AMETEK COM 031100100 2,311,992 62,005 2.76 323,032 26.59 0.0678
2022-11-14 2022-09-30 13F AMETEK COM 031100100 2,249,987 -11,886 -0.53 255,171 2.66 0.0583
2022-08-12 2022-06-30 13F AMETEK COM 031100100 2,261,873 13,292 0.59 248,556 -17.00 0.0532
2022-05-13 2022-03-31 13F AMETEK COM 031100100 2,248,581 -16,549 -0.73 299,466 -10.09 0.0527
2022-02-08 2021-12-31 13F AMETEK COM 031100100 2,265,130 -59,744 -2.57 333,064 15.52 0.0546
2021-11-15 2021-09-30 13F AMETEK COM 031100100 2,324,874 -3,639 -0.16 288,308 -7.25 0.0510
2021-08-13 2021-06-30 13F AMETEK COM 031100100 2,328,513 -51,077 -2.15 310,857 2.27 0.0548
2021-05-12 2021-03-31 13F AMETEK COM 031100100 2,379,590 -40,349 -1.67 303,945 3.85 0.0565
2021-02-11 2020-12-31 13F AMETEK COM 031100100 2,419,939 -73,369 -2.94 292,668 18.09 0.0570
2020-11-16 2020-09-30 13F AMETEK COM 031100100 2,493,308 -9,117 -0.36 247,835 10.82 0.0543
2020-08-14 2020-06-30 13F AMETEK COM 031100100 2,502,425 -6,480 -0.26 223,641 23.77 0.0530
2020-05-14 2020-03-31 13F AMETEK COM 031100100 2,508,905 5,783 0.23 180,691 -27.63 0.0519
2020-02-14 2019-12-31 13F AMETEK INC COM 031100100 2,503,122 -89,654 -3.46 249,663 4.87 0.0559
2019-11-13 2019-09-30 13F AMETEK INC COM 031100100 2,592,776 66,971 2.65 238,068 3.76 0.0570
2019-08-13 2019-06-30 13F AMETEK INC COM 031100100 2,525,805 17,219 0.69 229,445 10.24 0.0544
2019-05-13 2019-03-31 13F AMETEK INC COM 031100100 2,508,586 22,011 0.89 208,137 23.64 0.0514
2019-02-12 2018-12-31 13F AMETEK INC COM 031100100 2,486,575 37,044 1.51 168,342 -13.14 0.0472
2018-11-14 2018-09-30 13F AMETEK INC COM 031100100 2,449,531 -105,160 -4.12 193,806 5.13 0.0474
2018-09-18 2018-06-30 13F/A-1 AMETEK INC COM 031100100 2,554,691 -82,489 -3.13 184,347 -7.99 0.0468
2018-08-14 2018-06-30 13F AMETEK INC COM 031100100 2,569,730 -67,450 185,432
2018-05-09 2018-03-31 13F AMETEK INC COM 031100100 2,637,180 -21,071 -0.79 200,347 4.00 0.0521
2018-02-14 2017-12-31 13F AMETEK INC COM 031100100 2,658,251 -24,129 -0.90 192,644 8.75 0.0488
2017-11-13 2017-09-30 13F AMETEK INC COM 031100100 2,682,380 161,331 6.40 177,144 16.01 0.0462
2017-08-11 2017-06-30 13F AMETEK INC COM 031100100 2,521,049 -40,313 -1.57 152,701 10.24 0.0427
2017-05-12 2017-03-31 13F AMETEK INC COM 031100100 2,561,362 29,715 1.17 138,519 12.58 0.0399
2017-02-13 2016-12-31 13F AMETEK INC COM 031100100 2,531,647 -178,686 -6.59 123,038 -4.99 0.0377
2016-11-09 2016-09-30 13F AMETEK INC COM 031100100 2,710,333 21,496 0.80 129,499 4.18 0.0403
2016-08-12 2016-06-30 13F AMETEK INC COM 031100100 2,688,837 -143,916 -5.08 124,304 -12.68 0.0404
2016-08-19 2016-03-31 13F/A-1 AMETEK INC COM 031100100 2,832,753 -91,371 -3.12 142,352 -9.16 0.0472
2016-05-13 2016-03-31 13F Ametek Inc COMM 031100100 2,832,740 141,580
2016-02-12 2015-12-31 13F Ametek Inc COMM 031100100 2,924,124 -203,320 -6.50 156,704 -4.23 0.0519
2015-11-12 2015-09-30 13F Ametek Inc COMM 031100100 3,127,444 267,779 9.36 163,629 4.45 0.0546
2015-08-13 2015-06-30 13F AMETEK INC COM 031100100 2,859,665 -247,289 -7.96 156,652 -4.04 0.1062
2015-05-14 2015-03-31 13F Ametek Inc COMM 031100100 3,106,954 -53,072 -1.68 163,239 -1.85 0.0491
2015-02-12 2014-12-31 13F Ametek Inc COM 031100100 3,160,026 -128,563 -3.91 166,312 0.72 0.0502
2014-11-13 2014-09-30 13F Ametek Inc COMM 031100100 3,288,589 329,691 11.14 165,120 6.74 0.0519
2014-08-14 2014-06-30 13F AMETEK INC com 031100100 2,958,898 -487,830 -14.15 154,691 -12.84 0.0482
2014-05-14 2014-03-31 13F AMETEK INC COMM 031100100 3,446,728 395,303 12.95 177,471 10.42 0.0558
2014-02-21 2013-12-31 13F/A-1 AMETEK INC COM 031100100 3,051,425 -47,809 -1.54 160,718 12.68 0.0515
2014-02-12 2013-12-31 13F AMETEK INC COM 031100100 3,051,425 160,718
2013-11-13 2013-09-30 13F AMETEK INC COM 031100100 3,099,234 531,383 20.69 142,627 31.31 0.0502
2013-08-09 2013-06-30 13F AMETEK INC COM 031100100 2,567,851 2,567,851 108,621 0.0394
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.