AMETEK, Inc.
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership42,000 shares
Latest Disclosed Value $ 9,003,120
Boston Trust Walden Corp reports 5.43% decrease in ownership of AME / AMETEK, Inc.

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 42,000 shares of AMETEK, Inc. (US:AME) valued at $9,003,120 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 44,410 shares of AMETEK, Inc.. This represents a change in shares of -5.43% during the quarter. The current value of the position is $9,585,660 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)
2026-04-24 2026-03-31 13F AMETEK INC COMMON STOCK 031100100 42,000 -2,410 -5.43 9,003 -1.25 0.0443
2026-01-28 2025-12-31 13F AMETEK INC COMMON STOCK 031100100 44,410 -21,710 -32.83 9,118 -26.65 0.0688
2025-10-17 2025-09-30 13F AMETEK INC COMMON STOCK 031100100 66,120 -445 -0.67 12,431 3.20 0.0912
2025-07-28 2025-06-30 13F AMETEK INC COMMON STOCK 031100100 66,565 -840 -1.25 12,046 3.81 0.0859
2025-04-21 2025-03-31 13F AMETEK INC COMMON STOCK 031100100 67,405 -860 -1.26 11,603 -5.70 0.0848
2025-01-24 2024-12-31 13F AMETEK INC COMMON STOCK 031100100 68,265 95 0.14 12,305 5.13 0.0863
2024-10-24 2024-09-30 13F AMETEK INC COMMON STOCK 031100100 68,170 -365 -0.53 11,705 2.45 0.0814
2024-07-19 2024-06-30 13F AMETEK INC COMMON STOCK 031100100 68,535 1,485 2.21 11,425 -6.83 0.0847
2024-04-22 2024-03-31 13F AMETEK INC COMMON STOCK 031100100 67,050 -1,185 -1.74 12,263 8.99 0.0875
2024-01-24 2023-12-31 13F AMETEK INC COMMON STOCK 031100100 68,235 275 0.40 11,251 12.05 0.0849
2023-10-18 2023-09-30 13F AMETEK INC COMMON STOCK 031100100 67,960 -1,240 -1.79 10,042 -10.36 0.0842
2023-07-24 2023-06-30 13F AMETEK INC COMMON STOCK 031100100 69,200 5,895 9.31 11,202 21.76 0.0919
2023-04-19 2023-03-31 13F AMETEK INC COMMON STOCK 031100100 63,305 -205 -0.32 9,200 3.69 0.0794
2023-01-20 2022-12-31 13F AMETEK INC COMMON STOCK 031100100 63,510 -8,155 -11.38 8,874 9.17 0.0780
2022-10-19 2022-09-30 13F AMETEK INC COMMON STOCK 031100100 71,665 -25 -0.03 8,128 3.17 0.0805
2022-07-22 2022-06-30 13F AMETEK INC COMMON STOCK 031100100 71,690 28,365 65.47 7,878 36.53 0.0744
2022-04-20 2022-03-31 13F AMETEK INC COMMON STOCK 031100100 43,325 1,910 4.61 5,770 -5.25 0.0477
2022-01-21 2021-12-31 13F AMETEK INC COMMON STOCK 031100100 41,415 -2,875 -6.49 6,090 10.89 0.0489
2021-10-25 2021-09-30 13F AMETEK INC COMMON STOCK 031100100 44,290 475 1.08 5,492 -6.10 0.0486
2021-07-22 2021-06-30 13F AMETEK INC COMMON STOCK 031100100 43,815 -16,420 -27.26 5,849 -23.98 0.0520
2021-04-21 2021-03-31 13F AMETEK INC COMMON STOCK 031100100 60,235 -4,365 -6.76 7,694 -1.52 0.0745
2021-01-15 2020-12-31 13F AMETEK INC COMMON STOCK 031100100 64,600 1,605 2.55 7,813 24.77 0.0833
2020-10-14 2020-09-30 13F AMETEK INC COMMON STOCK 031100100 62,995 175 0.28 6,262 11.54 0.0780
2020-07-23 2020-06-30 13F AMETEK INC COMMON STOCK 031100100 62,820 -775 -1.22 5,614 22.58 0.0758
2020-04-24 2020-03-31 13F/A-1 AMETEK INC COMMON STOCK 031100100 63,595 -10,305 -13.94 4,580 -37.86 0.0730
2020-04-21 2020-03-31 13F AMETEK INC COMMON STOCK 031100100 63,595 -10,305 4,580 40,612.2483
2020-01-10 2019-12-31 13F AMETEK INC COMMON STOCK 031100100 73,900 -14,775 -16.66 7,371 -9.47 0.0858
2019-10-21 2019-09-30 13F AMETEK INC COMMON STOCK 031100100 88,675 4,925 5.88 8,142 7.02 0.1024
2019-07-25 2019-06-30 13F AMETEK INC COMMON STOCK 031100100 83,750 975 1.18 7,608 10.77 0.0990
2019-04-16 2019-03-31 13F AMETEK INC COMMON STOCK 031100100 82,775 8,175 10.96 6,868 35.97 0.0935
2019-01-17 2018-12-31 13F AMETEK INC COMMON STOCK 031100100 74,600 13,015 21.13 5,051 3.65 0.0804
2018-10-23 2018-09-30 13F AMETEK INC COMMON STOCK 031100100 61,585 -650 -1.04 4,873 8.51 0.0671
2018-07-25 2018-06-30 13F AMETEK INC COMMON STOCK 031100100 62,235 205 0.33 4,491 -4.69 0.0659
2018-04-13 2018-03-31 13F AMETEK INC COMMON STOCK 031100100 62,030 -875 -1.39 4,712 3.36 0.0715
2018-01-29 2017-12-31 13F AMETEK INC COMMON STOCK 031100100 62,905 -3,510 -5.28 4,559 3.94 0.0668
2017-10-13 2017-09-30 13F AMETEK INC COMMON STOCK 031100100 66,415 1,190 1.82 4,386 11.04 0.0683
2017-07-19 2017-06-30 13F AMETEK INC COMMON STOCK 031100100 65,225 1,775 2.80 3,950 15.13 0.0635
2017-04-24 2017-03-31 13F AMETEK INC COMMON STOCK 031100100 63,450 700 1.12 3,431 12.53 0.0535
2017-02-07 2016-12-31 13F/A-1 AMETEK INC COMMON STOCK 031100100 62,750 -175 -0.28 3,049 1.43 0.0481
2017-02-01 2016-12-31 13F AMETEK INC COMMON STOCK 031100100 62,750 3,049
2016-10-17 2016-09-30 13F AMETEK INC COMMON STOCK 031100100 62,925 75 0.12 3,006 3.48 0.0496
2016-08-09 2016-06-30 13F AMETEK INC COMMON STOCK 031100100 62,850 1,900 3.12 2,905 -4.66 0.0496
2016-04-19 2016-03-31 13F AMETEK INC COMMON STOCK 031100100 60,950 -1,225 -1.97 3,047 -8.55 0.0531
2016-01-21 2015-12-31 13F AMETEK INC COMMON STOCK 031100100 62,175 3,300 5.61 3,332 8.18 0.0618
2015-10-29 2015-09-30 13F AMETEK INC COMMON STOCK 031100100 58,875 1,240 2.15 3,080 -2.44 0.0514
2015-07-17 2015-06-30 13F AMETEK INC COMMON STOCK 031100100 57,635 8,260 16.73 3,157 21.66 0.0481
2015-04-15 2015-03-31 13F AMETEK INC COMMON STOCK 031100100 49,375 49,375 0.00 2,595 0.0385
2015-01-28 2014-12-31 13F AMETEK INC COMMON STOCK 031100100 0 -45,450 -100.00 0 -100.00
2014-10-23 2014-09-30 13F AMETEK INC COMMON STOCK 031100100 45,450 300 0.66 2,282 -3.35 0.0352
2014-08-01 2014-06-30 13F AMETEK INC COMMON STOCK 031100100 45,150 0 0.00 2,361 1.59 0.0343
2014-04-11 2014-03-31 13F AMETEK INC COMMON STOCK 031100100 45,150 12,800 39.57 2,324 36.38 0.0345
2014-02-11 2013-12-31 13F AMETEK INC COMMON STOCK 031100100 32,350 -75 -0.23 1,704 14.21 0.0249
2013-11-15 2013-09-30 13F AMETEK INC COMMON STOCK 031100100 32,425 -325 -0.99 1,492 7.65 0.0228
2013-08-08 2013-06-30 13F AMETEK INC COMMON STOCK 031100100 32,750 32,750 1,386 0.0224
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.