AMETEK, Inc.
MX ˙ BMV ˙ US0311001004
SecurityMX:AME / AMETEK, Inc.
InstitutionNational Pension Service
Latest Disclosed Ownership333,608 shares
Latest Disclosed Value $ 71,512,211
National Pension Service reports 8.90% increase in ownership of AME / AMETEK, Inc.

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 333,608 shares of AMETEK, Inc. (MX:AME) valued at $71,512,211 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 306,356 shares of AMETEK, Inc.. This represents a change in shares of 8.90% 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.

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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)
2026-05-12 2026-03-31 13F AMETEK COM 031100100 333,608 27,252 8.90 71,512 13.70 0.0543
2026-02-10 2025-12-31 13F AMETEK AMETEK INC 031100100 306,356 -6,245 -2.00 62,898 7.03 0.0466
2025-11-04 2025-09-30 13F AMETEK COM 031100100 312,601 6,289 2.05 58,769 6.02 0.0456
2025-08-08 2025-06-30 13F AMETEK COM 031100100 306,312 2,640 0.87 55,430 6.04 0.0479
2025-05-13 2025-03-31 13F AMETEK COM 031100100 303,672 30,303 11.09 52,274 6.08 0.0502
2025-02-05 2024-12-31 13F AMETEK COM 031100100 273,369 -335,585 -55.11 49,277 -52.87 0.0466
2024-10-30 2024-09-30 13F AMETEKINC COM 031100100 608,954 17,148 2.90 104,563 5.98 0.1008
2024-08-13 2024-06-30 13F AMETEK COM 031100100 591,806 6,483 1.11 98,660 -7.84 0.1134
2024-05-14 2024-03-31 13F AMETEK COM 031100100 585,323 8,928 1.55 107,056 12.64 0.1285
2024-02-07 2023-12-31 13F AMETEK COM 031100100 576,395 18,156 3.25 95,042 14.06 0.1323
2023-11-15 2023-09-30 13F AMETEK COM 031100100 558,239 22,102 4.12 83,328 -2.94 0.1333
2023-08-16 2023-06-30 13F AMETEK COM 031100100 536,137 33,942 6.76 85,857 19.70 0.1385
2023-05-12 2023-03-31 13F AMETEK COM 031100100 502,195 196,306 64.18 71,729 67.83 0.1306
2023-02-24 2022-12-31 13F/A-1 AMETEK COM 031100100 305,889 7,690 2.58 42,739 26.52 0.0841
2023-02-21 2022-12-31 13F AMETEK COM 031100100 305,889 7,690 43 0.0841
2023-02-24 2022-09-30 13F/A-1 AMETEK COM 031100100 298,199 -10,479 -3.39 33,780 -0.42 0.0705
2022-11-18 2022-09-30 13F AMETEK COM 031100100 298,199 -10,479 33,780 0.0705
2022-08-17 2022-06-30 13F AMETEK COM 031100100 308,678 2,025 0.66 33,921 -16.94 0.0699
2022-05-13 2022-03-31 13F AMETEK COM 031100100 306,653 -522 -0.17 40,840 -9.58 0.0746
2022-02-15 2021-12-31 13F AMETEK COM 031100100 307,175 -12,863 -4.02 45,167 13.81 0.0788
2021-11-18 2021-09-30 13F AMETEK COM 031100100 320,038 -5,704 -1.75 39,688 -8.74 0.0756
2021-08-17 2021-06-30 13F AMETEK COM 031100100 325,742 1,981 0.61 43,487 5.16 0.0826
2021-05-14 2021-03-31 13F AMETEK COM 031100100 323,761 9,844 3.14 41,354 8.93 0.0865
2021-02-19 2020-12-31 13F AMETEK COM 031100100 313,917 2,534 0.81 37,965 22.55 0.0866
2020-11-13 2020-09-30 13F AMETEK COM 031100100 311,383 0 0.00 30,979 11.32 0.0814
2020-08-11 2020-06-30 13F AMETEK COM 031100100 311,383 -66,531 -17.60 27,828 2.24 0.0795
2020-05-27 2020-03-31 13F AMETEK COM 031100100 377,914 8,052 2.18 27,217 -26.22 0.0921
2020-02-21 2019-12-31 13F AMETEK INC COM 031100100 369,862 47,316 14.67 36,890 24.56 0.1012
2019-11-15 2019-09-30 13F AMETEK INC COM 031100100 322,546 16,304 5.32 29,616 6.46 0.0937
2019-08-14 2019-06-30 13F AMETEK INC COM 031100100 306,242 24,542 8.71 27,819 19.02 0.0930
2019-05-15 2019-03-31 13F AMETEK INC COM 031100100 281,700 11,466 4.24 23,373 11.01 0.0899
2019-02-15 2018-12-31 13F AMETEK INC COM 031100100 270,234 14,514 5.68 21,054 4.06 0.0869
2018-11-15 2018-09-30 13F AMETEK INC COM 031100100 255,720 24 0.01 20,233 10.35 0.0824
2018-08-14 2018-06-30 13F AMETEK INC COM 031100100 255,696 10,835 4.42 18,336 -1.43 0.0830
2018-04-13 2018-03-31 13F AMETEK INC COM 031100100 244,861 -4,249 -1.71 18,602 3.04 0.0922
2018-01-17 2017-12-31 13F AMETEK INC COM 031100100 249,110 2,344 0.95 18,053 11.60 0.0901
2017-10-16 2017-09-30 13F AMETEK COM 031100100 246,766 9,476 3.99 16,176 13.62 0.0890
2017-07-13 2017-06-30 13F AMETEK INC COM 031100100 237,290 21,089 9.75 14,237 21.67 0.0848
2017-04-11 2017-03-31 13F AMETEK INC COM 031100100 216,201 8,708 4.20 11,701 16.04 0.0783
2017-01-18 2016-12-31 13F AMETEK INC COM 031100100 207,493 13,452 6.93 10,084 8.77 0.0690
2016-10-14 2016-09-30 13F AMETEK INC COM 031100100 194,041 16,535 9.32 9,271 12.98 0.0743
2016-08-11 2016-06-30 13F AMETEK INC COM 031100100 177,506 20,731 13.22 8,206 4.72 0.0728
2016-05-16 2016-03-31 13F AMETEK INC COM 031100100 156,775 6,662 4.44 7,836 -2.60 0.0785
2016-02-12 2015-12-31 13F AMETEK INC COM 031100100 150,113 9,955 7.10 8,045 9.71 0.0845
2015-10-15 2015-09-30 13F AMETEK INC COM 031100100 140,158 16,478 13.32 7,333 8.24 0.0927
2015-07-15 2015-06-30 13F AMETEK INC COM 031100100 123,680 19,155 18.33 6,775 23.36 0.0879
2015-04-15 2015-03-31 13F AMETEK INC COM 031100100 104,525 15,383 17.26 5,492 17.05 0.0794
2015-01-13 2014-12-31 13F AMETEK INC COM 031100100 89,142 -7,870 -8.11 4,692 -3.67 0.0792
2014-11-07 2014-09-30 13F AMETEK INC COM 031100100 97,012 97,012 4,871 0.0773
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.