AMETEK, Inc.
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionDavis R M Inc
Latest Disclosed Ownership307,111 shares
Latest Disclosed Value $ 65,832,312
Davis R M Inc reports 1.35% decrease in ownership of AME / AMETEK, Inc.

On May 13, 2026 - Davis R M Inc filed a 13F-HR form disclosing ownership of 307,111 shares of AMETEK, Inc. (US:AME) valued at $65,832,314 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 311,315 shares of AMETEK, Inc.. This represents a change in shares of -1.35% during the quarter. The current value of the position is $70,091,944 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)
2026-05-13 2026-03-31 13F AMETEK COM 031100100 307,111 -4,204 -1.35 65,832 3.00 1.1684
2026-02-12 2025-12-31 13F AMETEK COM 031100100 311,315 -6,462 -2.03 63,916 6.99 1.1004
2025-11-12 2025-09-30 13F AMETEK COM 031100100 317,777 -3,152 -0.98 59,742 2.87 1.0444
2025-08-07 2025-06-30 13F AMETEK COM 031100100 320,929 -5,693 -1.74 58,075 3.29 1.0769
2025-05-08 2025-03-31 13F AMETEK COM 031100100 326,622 -2,870 -0.87 56,225 -5.34 1.1258
2025-02-07 2024-12-31 13F AMETEK COM 031100100 329,492 -718 -0.22 59,394 4.75 1.1591
2024-11-13 2024-09-30 13F AMETEK COM 031100100 330,210 401 0.12 56,700 3.12 1.0957
2024-08-09 2024-06-30 13F AMETEK COM 031100100 329,809 9,003 2.81 54,982 -6.29 1.1164
2024-05-10 2024-03-31 13F AMETEK COM 031100100 320,806 3,678 1.16 58,675 12.21 1.2284
2024-02-09 2023-12-31 13F AMETEK COM 031100100 317,128 -26,224 -7.64 52,291 104,482.00 1.2064
2023-11-14 2023-09-30 13F AMETEK COM 031100100 343,352 -11,774 -3.32 51 -12.28 1.2727
2023-08-10 2023-06-30 13F AMETEK COM 031100100 355,126 -10,149 -2.78 57 7.55 1.3808
2023-05-01 2023-03-31 13F AMETEK COM 031100100 365,275 -11,994 -3.18 53 1.92 1.3518
2023-02-14 2022-12-31 13F AMETEK COM 031100100 377,269 1,183 0.31 53 -99.88 1.4207
2022-11-08 2022-09-30 13F AMETEK COM 031100100 376,086 -12,196 -3.14 42,652 -0.04 1.2371
2022-08-08 2022-06-30 13F AMETEK COM 031100100 388,282 -5,812 -1.47 42,668 -18.70 1.1896
2022-05-05 2022-03-31 13F AMETEK COM 031100100 394,094 -9,634 -2.39 52,485 -11.59 1.2498
2022-02-08 2021-12-31 13F Ametek COM 031100100 403,728 -4,373 -1.07 59,364 17.30 1.3230
2021-11-08 2021-09-30 13F Ametek COM 031100100 408,101 -1,505 -0.37 50,609 -7.45 1.2550
2021-08-12 2021-06-30 13F Ametek COM 031100100 409,606 -8,104 -1.94 54,682 2.49 1.3747
2021-05-10 2021-03-31 13F Ametek COM 031100100 417,710 -3,643 -0.86 53,354 4.70 1.4660
2021-01-27 2020-12-31 13F Ametek COM 031100100 421,353 4,968 1.19 50,958 23.12 1.4624
2020-12-01 2020-09-30 13F Ametek COM 031100100 416,385 3,512 0.85 41,389 12.17 1.3526
2020-07-20 2020-06-30 13F Ametek COM 031100100 412,873 -19,709 -4.56 36,898 18.43 1.3149
2020-04-24 2020-03-31 13F Ametek COM 031100100 432,582 -13,636 -3.06 31,155 -30.00 1.2947
2020-01-23 2019-12-31 13F Ametek COM 031100100 446,218 -3,830 -0.85 44,506 7.70 1.4591
2019-10-24 2019-09-30 13F Ametek COM 031100100 450,048 -6,526 -1.43 41,323 -0.37 1.4556
2019-07-31 2019-06-30 13F Ametek COM 031100100 456,574 -14,012 -2.98 41,475 6.22 1.4759
2019-04-29 2019-03-31 13F Ametek COM 031100100 470,586 -32,069 -6.38 39,045 14.74 1.4533
2019-01-18 2018-12-31 13F Ametek COM 031100100 502,655 -16,475 -3.17 34,030 -17.15 1.3932
2018-10-17 2018-09-30 13F Ametek COM 031100100 519,130 1,712 0.33 41,074 10.01 1.4904
2018-07-19 2018-06-30 13F AMETEK COM 031100100 517,418 20,370 4.10 37,337 -1.12 1.4527
2018-04-19 2018-03-31 13F AMETEK COM 031100100 497,048 -784 -0.16 37,761 4.66 1.5050
2018-01-16 2017-12-31 13F AMETEK COM 031100100 497,832 777 0.16 36,078 9.91 1.4147
2017-10-24 2017-09-30 13F AMETEK COM 031100100 497,055 10,532 2.16 32,826 11.39 1.3566
2017-07-31 2017-06-30 13F AMETEK COM 031100100 486,523 31,100 6.83 29,469 19.65 1.2456
2017-05-03 2017-03-31 13F AMETEK COM 031100100 455,423 20,680 4.76 24,629 16.56 1.1133
2017-01-18 2016-12-31 13F AMETEK COM 031100100 434,743 -6,505 -1.47 21,129 0.22 1.0097
2016-10-19 2016-09-30 13F AMETEK COM 031100100 441,248 -5,181 -1.16 21,083 2.16 1.0285
2016-07-14 2016-06-30 13F AMETEK COM 031100100 446,429 28,344 6.78 20,638 -1.23 1.0142
2016-04-18 2016-03-31 13F AMETEK COM 031100100 418,085 13,491 3.33 20,896 -3.63 1.0638
2016-01-14 2015-12-31 13F AMETEK COM 031100100 404,594 67,212 19.92 21,682 22.83 1.1088
2015-10-16 2015-09-30 13F AMETEK COM 031100100 337,382 85,744 34.07 17,652 28.05 0.9431
2015-07-16 2015-06-30 13F AMETEK COM 031100100 251,638 45,340 21.98 13,785 27.18 0.7121
2015-04-17 2015-03-31 13F AMETEK COM 031100100 206,298 55,205 36.54 10,839 36.31 0.5702
2015-01-23 2014-12-31 13F AMETEK COM 031100100 151,093 75,890 100.91 7,952 110.59 0.4383
2014-10-20 2014-09-30 13F/A-2 AMETEK COM 031100100 75,203 75,203 3,776 0.2169
2014-10-20 2014-09-30 13F/A-1 AMETEK COM 031100100 75,203 0 3,776 0.2169
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.