阿美特克公司
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership10,083,885 shares
Latest Disclosed Value $ 2,161,581,589
State Street Corp reports 1.28% increase in ownership of AME / AMETEK, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 10,083,885 shares of AMETEK, Inc. (US:AME) valued at $2,161,581,589 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,956,361 shares of AMETEK, Inc.. This represents a change in shares of 1.28% during the quarter. The current value of the position is $2,306,789,533 USD.

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.

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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)
2026-05-15 2026-03-31 13F AMETEK COM 031100100 10,083,885 127,524 1.28 2,161,582 5.75 0.0746
2026-02-13 2025-12-31 13F AMETEK COM 031100100 9,956,361 192,677 1.97 2,044,140 11.36 0.0686
2025-11-14 2025-09-30 13F AMETEK COM 031100100 9,763,684 126,381 1.31 1,835,573 5.25 0.0637
2025-08-14 2025-06-30 13F AMETEK COM 031100100 9,637,303 126,105 1.33 1,743,966 6.52 0.0654
2025-05-15 2025-03-31 13F AMETEK COM 031100100 9,511,198 57,238 0.61 1,637,258 -3.93 0.0675
2025-02-14 2024-12-31 13F AMETEK COM 031100100 9,453,960 233,584 2.53 1,704,220 7.64 0.0672
2024-11-14 2024-09-30 13F AMETEK COM 031100100 9,220,376 24,072 0.26 1,583,231 3.27 0.0644
2024-08-14 2024-06-30 13F AMETEK COM 031100100 9,196,304 98,170 1.08 1,533,116 -7.87 0.0670
2024-05-15 2024-03-31 13F AMETEK COM 031100100 9,098,134 114,133 1.27 1,664,049 12.33 0.0744
2024-02-14 2023-12-31 13F AMETEK COM 031100100 8,984,001 149,849 1.70 1,481,372 13.49 0.0721
2023-11-14 2023-09-30 13F AMETEK COM 031100100 8,834,152 -137,990 -1.54 1,305,334 -10.13 0.0724
2023-08-14 2023-06-30 13F AMETEK COM 031100100 8,972,142 134,989 1.53 1,452,410 13.09 0.0763
2023-05-15 2023-03-31 13F AMETEK COM 031100100 8,837,153 -88,383 -0.99 1,284,303 2.99 0.0725
2023-05-15 2022-12-31 13F/A-99 AMETEK COM 031100100 8,925,536 36,035 0.41 1,247,076 23.70 0.0733
2023-05-15 2022-12-31 13F AMETEK COM 031100100 8,925,536 36,035 1,247,076 0.0733
2022-11-15 2022-09-30 13F AMETEK COM 031100100 8,889,501 -51,194 -0.57 1,008,158 2.61 0.0638
2022-08-15 2022-06-30 13F AMETEK COM 031100100 8,940,695 -173,684 -1.91 982,493 -19.06 0.0589
2022-05-16 2022-03-31 13F AMETEK COM 031100100 9,114,379 -181,214 -1.95 1,213,853 -11.19 0.0600
2022-02-14 2021-12-31 13F AMETEK COM 031100100 9,295,593 60,786 0.66 1,366,824 19.35 0.0648
2021-11-15 2021-09-30 13F AMETEK COM 031100100 9,234,807 -70,001 -0.75 1,145,208 -7.81 0.0605
2021-08-16 2021-06-30 13F AMETEK COM 031100100 9,304,808 -11,869 -0.13 1,242,192 4.38 0.0655
2021-07-09 2021-03-31 13F/A-1 AMETEK COM 031100100 9,316,677 -9,245 -0.10 1,190,019 5.51 0.0682
2021-05-17 2021-03-31 13F AMETEK COM 031100100 9,316,677 -9,245 1,190,019 0.0682
2021-02-16 2020-12-31 13F AMETEK COM 031100100 9,325,922 -19,208 -0.21 1,127,877 21.42 0.0691
2020-11-10 2020-09-30 13F AMETEK COM 031100100 9,345,130 129,508 1.41 928,906 12.79 0.0634
2020-08-14 2020-06-30 13F AMETEK COM 031100100 9,215,622 89,971 0.99 823,600 25.31 0.0599
2020-06-19 2020-03-31 13F/A-1 AMETEK COM 031100100 9,125,651 14,348 0.16 657,229 -27.68 0.0575
2020-05-11 2020-03-31 13F AMETEK COM 031100100 9,125,651 14,348 657,229 57,717.9397
2020-02-06 2019-12-31 13F AMETEK INC COM 031100100 9,111,303 102,888 1.14 908,761 9.87 0.0622
2019-11-14 2019-09-30 13F AMETEK INC COM 031100100 9,008,415 -123,972 -1.36 827,153 -0.29 0.0617
2019-08-14 2019-06-30 13F AMETEK INC COM 031100100 9,132,387 2,109 0.02 829,586 9.51 0.0619
2019-05-15 2019-03-31 13F AMETEK INC COM 031100100 9,130,278 285,251 3.22 757,539 26.51 0.0591
2019-02-12 2018-12-31 13F AMETEK INC COM 031100100 8,845,027 -120,355 -1.34 598,808 -15.58 0.0545
2018-11-09 2018-09-30 13F AMETEK Common equity shares 031100100 8,965,382 226,939 2.60 709,341 12.49 0.0545
2018-08-14 2018-06-30 13F AMETEK Common equity shares 031100100 8,738,443 -244,309 -2.72 630,564 -7.60 0.0527
2018-05-15 2018-03-31 13F AMETEK Common equity shares 031100100 8,982,752 -201,918 -2.20 682,419 2.53 0.0579
2018-02-14 2017-12-31 13F AMETEK Common equity shares 031100100 9,184,670 105,002 1.16 665,605 11.01 0.0535
2017-11-14 2017-09-30 13F AMETEK Common equity shares 031100100 9,079,668 -261,585 -2.80 599,617 5.98 0.0517
2017-08-14 2017-06-30 13F AMETEK Common equity shares 031100100 9,341,253 -240,469 -2.51 565,798 9.19 0.0500
2017-05-15 2017-03-31 13F AMETEK Common equity shares 031100100 9,581,722 10,567 0.11 518,186 11.40 0.0462
2017-02-09 2016-12-31 13F AMETEK Common equity shares 031100100 9,571,155 479,261 5.27 465,162 7.08 0.0438
2017-01-13 2016-09-30 13F/A-1 AMETEK Common equity shares 031100100 9,091,894 225,568 2.54 434,408 5.98 0.0438
2016-11-14 2016-09-30 13F AMETEK Common equity shares 031100100 6,616,264 316,122
2016-08-12 2016-06-30 13F AMETEK Common equity shares 031100100 8,866,326 -255,560 -2.80 409,891 -10.09 0.0440
2016-05-20 2016-03-31 13F/A-1 AMETEK Common equity shares 031100100 9,121,886 2,163 0.02 455,912 -6.71 0.0493
2016-05-12 2016-03-31 13F AMETEK Common equity shares 031100100 9,121,886 455,912
2016-02-16 2015-12-31 13F AMETEK Common equity shares 031100100 9,119,723 -27,756 -0.30 488,723 2.11 0.0534
2015-11-16 2015-09-30 13F AMETEK Common equity shares 031100100 9,147,479 -91,152 -0.99 478,601 -5.43 0.0557
2015-08-13 2015-06-30 13F AMETEK Common equity shares 031100100 9,238,631 -469,773 -4.84 506,090 -0.78 0.0541
2015-05-15 2015-03-31 13F AMETEK Common equity shares 031100100 9,708,404 -649,115 -6.27 510,071 -6.43 0.0523
2015-02-11 2014-12-31 13F AMETEK Common equity shares 031100100 10,357,519 301,511 3.00 545,108 7.96 0.0543
2014-11-12 2014-09-30 13F/A-1 AMETEK Common equity shares 031100100 10,056,008 -25,400 -0.25 504,907 -4.20 0.0543
2014-11-10 2014-09-30 13F AMETEK Common equity shares 031100100 10,056,008 504,907
2014-08-12 2014-06-30 13F AMETEK Common equity shares 031100100 10,081,408 272,101 2.77 527,060 4.35 0.0569
2014-05-15 2014-03-31 13F/A-1 AMETEK Common equity shares 031100100 9,809,307 -480,396 -4.67 505,092 -6.80 0.0574
2014-05-13 2014-03-31 13F AMETEK Common equity shares 031100100 9,809,307 505,092
2014-02-06 2013-12-31 13F/A-1 AMETEK Common equity shares 031100100 10,289,703 485,324 4.95 541,953 20.11 0.0603
2014-02-06 2013-12-31 13F AMETEK Common equity shares 031100100 7,710,710 289,695
2013-11-12 2013-09-30 13F AMETEK Common equity shares 031100100 9,804,379 2,011,751 25.82 451,203 36.88 0.0556
2013-08-08 2013-06-30 13F AMETEK Common equity shares 031100100 7,792,628 7,792,628 329,633 0.0430
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.