AMETEK, Inc.
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership1,931 shares
Latest Disclosed Value $ 413,929
First Manhattan Co reports 9.34% decrease in ownership of AME / AMETEK, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 1,931 shares of AMETEK, Inc. (US:AME) valued at $413,929 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,130 shares of AMETEK, Inc.. This represents a change in shares of -9.34% during the quarter. The current value of the position is $440,712 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 1,931 -199 -9.34 414 -5.49 0.0011
2026-02-17 2025-12-31 13F AMETEK COM 031100100 2,130 -92 -4.14 437 4.80 0.0011
2025-11-14 2025-09-30 13F AMETEK COM 031100100 2,222 59 2.73 418 6.65 0.0011
2025-08-14 2025-06-30 13F AMETEK COM 031100100 2,163 -231 -9.65 391 -5.10 0.0011
2025-05-15 2025-03-31 13F AMETEK COM 031100100 2,394 -200 -7.71 412 -11.78 0.0012
2025-02-14 2024-12-31 13F AMETEK COM 031100100 2,594 0 0.00 468 4.94 0.0014
2024-11-14 2024-09-30 13F AMETEK COM 031100100 2,594 -120 -4.42 445 -1.55 0.0013
2024-08-15 2024-06-30 13F/A-1 AMETEK COM 031100100 2,714 1 0.04 452 -8.87 0.0015
2024-08-14 2024-06-30 13F AMETEK COM 031100100 2,714 1 452 0.0015
2024-05-15 2024-03-31 13F AMETEK COM 031100100 2,713 -1,129 -29.39 496 -21.64 0.0016
2024-02-13 2023-12-31 13F AMETEK COM 031100100 3,842 -743 -16.21 634 -6.50 0.0022
2023-11-14 2023-09-30 13F AMETEK COM 031100100 4,585 -305 -6.24 677 -14.41 0.0025
2023-08-14 2023-06-30 13F AMETEK COM 031100100 4,890 -2,200 -31.03 792 -23.20 0.0029
2023-05-15 2023-03-31 13F AMETEK COM 031100100 7,090 2,200 44.99 1,030 50.81 0.0040
2023-02-14 2022-12-31 13F AMETEK COM 031100100 4,890 -240 -4.68 683 17.56 0.0025
2022-11-14 2022-09-30 13F AMETEK COM 031100100 5,130 300 6.21 581 9.62 0.0025
2022-08-15 2022-06-30 13F AMETEK COM 031100100 4,830 -450 -8.52 530 -24.61 0.0021
2022-05-16 2022-03-31 13F AMETEK COM 031100100 5,280 0 0.00 703 -9.41 0.0023
2022-02-14 2021-12-31 13F AMETEK COM 031100100 5,280 450 9.32 776 29.77 0.0026
2021-11-15 2021-09-30 13F AMETEK COM 031100100 4,830 0 0.00 598 -7.14 0.0022
2021-08-16 2021-06-30 13F AMETEK COM 031100100 4,830 0 0.00 644 4.55 0.0024
2021-05-14 2021-03-31 13F AMETEK COM 031100100 4,830 0 0.00 616 5.48 0.0027
2021-02-16 2020-12-31 13F AMETEK COM 031100100 4,830 0 0.00 584 21.67 0.0028
2020-11-12 2020-09-30 13F AMETEK COMMON 031100100 4,830 0 0.00 480 11.37 0.0025
2020-08-14 2020-06-30 13F AMETEK COMMON 031100100 4,830 -150 -3.01 431 20.39 0.0025
2020-05-06 2020-03-31 13F AMETEK COMMON 031100100 4,980 -250 -4.78 358 -31.29 0.0023
2020-02-13 2019-12-31 13F AMETEK COMMON 031100100 5,230 400 8.28 521 17.61 0.0026
2019-11-13 2019-09-30 13F AMETEK COMMON 031100100 4,830 0 0.00 443 1.14 0.0024
2019-08-16 2019-06-30 13F AMETEK COMMON 031100100 4,830 -755 -13.52 438 -5.40 0.0024
2019-04-12 2019-03-31 13F AMETEK COMMON 031100100 5,585 0 0.00 463 22.49 0.0027
2019-01-30 2018-12-31 13F AMETEK COMMON 031100100 5,585 -100 -1.76 378 -15.81 0.0024
2018-10-15 2018-09-30 13F AMETEK COMMON 031100100 5,685 0 0.00 449 9.51 0.0024
2018-08-01 2018-06-30 13F AMETEK COMMON 031100100 5,685 0 0.00 410 -4.87 0.0024
2018-04-20 2018-03-31 13F AMETEK COMMON 031100100 5,685 -1,000 -14.96 431 -10.95 0.0025
2018-01-22 2017-12-31 13F AMETEK COMMON 031100100 6,685 0 0.00 484 9.75 0.0027
2017-10-25 2017-09-30 13F AMETEK COMMON 031100100 6,685 -225 -3.26 441 5.50 0.0025
2017-08-10 2017-06-30 13F/A-2 AMETEK COMMON 031100100 6,910 0 0.00 418 12.06 0.0024
2017-08-01 2017-06-30 13F/A-1 AMETEK COMMON 031100100 6,910 0 418 0.0024
2017-04-25 2017-03-31 13F/A-1 AMETEK COMMON 031100100 6,910 0 0.00 373 11.34 0.0022
2017-04-24 2017-03-31 13F AMETEK COMMON 031100100 6,946 331
2017-01-25 2016-12-31 13F AMETEK COMMON 031100100 6,910 -36 -0.52 335 1.21 0.0020
2016-10-20 2016-09-30 13F AMETEK COMMON 031100100 6,946 0 0.00 331 3.12 0.0020
2016-07-14 2016-06-30 13F AMETEK COMMON 031100100 6,946 0 0.00 321 -7.49 0.0020
2016-04-22 2016-03-31 13F AMETEK COMMON 031100100 6,946 0 0.00 347 -6.72 0.0021
2016-01-20 2015-12-31 13F AMETEK COMMON 031100100 6,946 0 0.00 372 2.48 0.0023
2015-10-26 2015-09-30 13F AMETEK COMMON 031100100 6,946 0 0.00 363 -4.47 0.0023
2015-07-17 2015-06-30 13F AMETEK COMMON 031100100 6,946 36 0.52 380 4.68 0.0022
2015-04-30 2015-03-31 13F AMETEK COMMON 031100100 6,910 0 0.00 363 0.00 0.0021
2015-01-20 2014-12-31 13F AMETEK COMMON 031100100 6,910 -400 -5.47 363 -1.09 0.0021
2014-10-23 2014-09-30 13F AMETEK COMMON 031100100 7,310 0 0.00 367 -3.93 0.0021
2014-08-14 2014-06-30 13F/A-1 AMETEK COMMON 031100100 7,310 0 0.00 382 1.60 0.0024
2014-05-16 2014-03-31 13F AMETEK COMMON 031100100 7,310 0 0.00 376 -2.34 0.0025
2014-02-04 2013-12-31 13F AMETEK COMMON 031100100 7,310 -155 -2.08 385 12.24 0.0025
2013-10-29 2013-09-30 13F AMETEK COMMON 031100100 7,465 0 0.00 343 0.59 0.0024
2013-08-13 2013-06-30 13F AMETEK COMMON 031100100 7,465 7,465 341 0.0023
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.