Ametek Inc
AME- Exchange
- NYSE
- Industry
- Industrial Instruments For Measurement, Display, and Control
- SEC CIK
- 0001037868
In the last 90 days, Ametek Inc insiders filed 1 open-market purchase and 1 sale; 1,201 institutions reported holding it in 13F filings for Q2 2026, worth $49.7B in total; superinvestors Giverny Capital and ARK Invest hold it.
13F holders, Q4 2025
Institutional positions in Ametek Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,128
- +115 vs. Q3 2025
- Shares held
- 205.3M
- +7.26M (+3.7%) vs. Q3 2025
- Total value
- $42.1B
- +$4.98B (+13.4%) vs. Q3 2025
- New holders
- 185
- 400 more added
- Sold out
- 70
- 372 more reduced
21 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AME on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,201 | $49.7B |
| Q1 2026 | 1,159 | $43.0B |
| Q4 2025 | 1,128 | $42.1B |
| Q3 2025 | 1,034 | $37.4B |
| Q2 2025 | 1,004 | $36.8B |
| Q1 2025 | 1,000 | $34.7B |
| Q4 2024 | 989 | $36.0B |
| Q3 2024 | 916 | $34.3B |
| Q2 2024 | 900 | $33.9B |
| Q1 2024 | 910 | $37.0B |
| Q4 2023 | 859 | $33.3B |
| Q3 2023 | 814 | $29.9B |
| Q2 2023 | 823 | $32.6B |
| Q1 2023 | 777 | $29.2B |
| Q4 2022 | 790 | $28.9B |
| Q3 2022 | 753 | $22.7B |
| Q2 2022 | 745 | $21.7B |
| Q1 2022 | 753 | $26.6B |
| Q4 2021 | 772 | $29.5B |
| Q3 2021 | 719 | $24.9B |
| Q2 2021 | 723 | $26.8B |
| Q1 2021 | 695 | $25.4B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Ametek Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Worldquant Millennium Advisors LLC | 213,211 | $43.8M | 0.17% | +73,615+52.7% | Added |
| Factory Mutual Insurance Co | 215,100 | $44.2M | 0.45% | +13,300+6.6% | Added |
| Life Cycle Investment Partners Ltd | 228,399 | $46.9M | 0.33% | +228,399 | New |
| Standard Life Aberdeen plc | 230,004 | $47.2M | 0.07% | −1,549−0.7% | Reduced |
| Aristotle Atlantic Partners, LLC | 233,475 | $47.9M | 2.19% | −3,988−1.7% | Reduced |
| TimesSquare Capital Management, LLC | 236,650 | $48.6M | 0.73% | −11,405−4.6% | Reduced |
| Mariner, LLC | 237,375 | $48.7M | 0.06% | +86,316+57.1% | Added |
| CIBC Private Wealth Group, LLC | 240,992 | $49.5M | 0.08% | −8,686−3.5% | Reduced |
| Santori & Peters | 245,207 | $50.3M | 17.18% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 253,529 | $52.1M | 0.17% | −7,352−2.8% | Reduced |
| Guinness Asset Management LTD | 249,784 | $52.1M | 0.85% | −780.0% | Reduced |
| KBC Group NV | 255,987 | $52.6M | 0.12% | −26,098−9.3% | Reduced |
| Great West Life Assurance Co | 260,556 | $53.5M | 0.09% | −90,537−25.8% | Reduced |
| Employees Retirement System of Texas | 262,148 | $53.8M | 0.44% | +262,148 | New |
| Bank of Montreal | 264,261 | $54.3M | 0.02% | +20,858+8.6% | Added |
| Captrust Financial Advisors | 268,588 | $55.1M | 0.10% | +492+0.2% | Added |
| CCLA Investment Management Ltd | 271,560 | $55.7M | 0.89% | +12,907+5.0% | Added |
| PFA Pension, Forsikringsaktieselskab | 272,484 | $56.4M | 0.16% | +272,484 | New |
| Alliancebernstein L.P. | 278,219 | $57.1M | 0.02% | −6,854−2.4% | Reduced |
| Victory Capital Management Inc | 289,155 | $59.4M | 0.03% | +137,835+91.1% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 288,982 | $59.5M | 0.10% | −18,907−6.1% | Reduced |
| RMB Capital Management, LLC | 292,398 | $60.0M | 1.04% | −2,363−0.8% | Reduced |
| National Pension Service | 306,356 | $62.9M | 0.05% | −6,245−2.0% | Reduced |
| Davis R M Inc | 311,315 | $63.9M | 1.10% | −6,462−2.0% | Reduced |
| Panagora Asset Management Inc | 313,022 | $64.3M | 0.23% | −452,825−59.1% | Reduced |
| Caisse de Depot Et Placement du Quebec | 315,235 | $64.7M | 0.11% | +82,654+35.5% | Added |
| Danske Bank A/S | 320,908 | $65.9M | 0.15% | +10,579+3.4% | Added |
| Canada Pension Plan Investment Board | 333,435 | $68.5M | 0.05% | −113,966−25.5% | Reduced |
| Russell Investments Group, Ltd. | 337,746 | $69.4M | 0.08% | +167,537+98.4% | Added |
| SEI Investments Co | 344,757 | $70.8M | 0.07% | +112,387+48.4% | Added |
| Cartenna Capital, LP | 350,000 | $71.9M | 3.78% | +350,000 | New |
| Fenimore Asset Management Inc | 367,870 | $75.5M | 1.57% | +373+0.1% | Added |
| Glenmede Trust Co NA | 373,687 | $76.7M | 0.36% | +373,687 | New |
| M.D. Sass Investors Services, Inc. | 378,980 | $77.8M | 6.13% | +2,110+0.6% | Added |
| Raymond James Financial Inc | 384,892 | $79.0M | 0.02% | +34,608+9.9% | Added |
| Wells Fargo & Company | 385,475 | $79.1M | 0.02% | +10,565+2.8% | Added |
| Capital International Investors | 394,891 | $81.3M | 0.01% | −14,964−3.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 395,924 | $81.3M | 0.09% | +80,814+25.6% | Added |
| California State Teachers Retirement System | 397,895 | $81.7M | 0.08% | −2,396−0.6% | Reduced |
| Janus Henderson Group PLC | 399,153 | $82.0M | 0.04% | +12,451+3.2% | Added |
| Dixon Mitchell Investment Counsel Inc. | 401,739 | $82.5M | 2.72% | +265+0.1% | Added |
| Harding Loevner LP | 421,690 | $86.6M | 0.76% | −8,266−1.9% | Reduced |
| California Public Employees Retirement System | 431,338 | $88.6M | 0.05% | −3,424−0.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 444,328 | $91.2M | 0.05% | −177,402−28.5% | Reduced |
| Ensign Peak Advisors, Inc | 447,525 | $91.9M | 0.16% | −65,454−12.8% | Reduced |
| Port Capital LLC | 451,704 | $92.7M | 4.00% | −890−0.2% | Reduced |
| Rhumbline Advisers | 453,319 | $93.1M | 0.08% | +593+0.1% | Added |
| TCW Group Inc | 477,200 | $98.0M | 0.70% | +394,225+475.1% | Added |
| Nuveen, LLC | 482,571 | $99.1M | 0.03% | −4,436−0.9% | Reduced |
| Blair William & Co | 486,174 | $99.8M | 0.27% | −43,099−8.1% | Reduced |
| Thrivent Financial for Lutherans | 490,424 | $100.7M | 0.18% | −35,335−6.7% | Reduced |
| Acadian Asset Management LLC | 494,316 | $101.5M | 0.17% | −48,778−9.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 487,238 | $101.9M | 0.07% | +28,621+6.2% | Added |
| BNP Paribas Arbitrage, SA | 509,825 | $104.7M | 0.07% | −377,391−42.5% | Reduced |
| Assenagon Asset Management S.A. | 510,728 | $104.9M | 0.16% | +297,052+139.0% | Added |
| Ameriprise Financial Inc | 522,542 | $107.3M | 0.02% | −376,817−41.9% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 527,119 | $108.2M | 0.06% | −11,127−2.1% | Reduced |
| Royal London Asset Management Ltd | 538,103 | $110.5M | 0.23% | +21,427+4.1% | Added |
| Silvercrest Asset Management Group LLC | 553,790 | $113.7M | 0.78% | −29,452−5.0% | Reduced |
| HM Payson & Co | 567,340 | $116.5M | 1.64% | +2,085+0.4% | Added |
| Bessemer Group Inc | 583,769 | $119.9M | 0.18% | −11,243−1.9% | Reduced |
| Freestone Grove Partners LP | 593,885 | $121.9M | 0.88% | +117,850+24.8% | Added |
| Allianz Asset Management GmbH | 602,274 | $123.7M | 0.14% | +392,210+186.7% | Added |
| Gamco Investors, Inc. Et Al | 606,859 | $124.6M | 1.20% | −15,890−2.6% | Reduced |
| James Hambro & Partners | 608,755 | $125.0M | 4.47% | −10,427−1.7% | Reduced |
| Champlain Investment Partners, LLC | 616,857 | $126.6M | 1.28% | −265,408−30.1% | Reduced |
| Swiss National Bank | 632,925 | $129.9M | 0.08% | −32,600−4.9% | Reduced |
| Two Sigma Advisers, LP | 651,600 | $133.8M | 0.26% | +261,400+67.0% | Added |
| Natixis Advisors, L.P. | 672,291 | $138.0M | 0.20% | +89,853+15.4% | Added |
| Compagnie Lombard Odier SCmA | 698,761 | $143.5M | 1.56% | +69,445+11.0% | Added |
| Barclays PLC | 709,453 | $145.7M | 0.06% | −97,567−12.1% | Reduced |
| American Century Companies Inc | 736,679 | $151.2M | 0.08% | +260,417+54.7% | Added |
| Voloridge Investment Management, LLC | 776,060 | $159.3M | 0.56% | +68,047+9.6% | Added |
| 1832 Asset Management L.P. | 802,119 | $164.7M | 0.21% | +800,420+47,111.2% | Added |
| DekaBank Deutsche Girozentrale | 852,057 | $165.8M | 0.31% | 00.0% | Unchanged |
| Bank Julius Baer & Co. Ltd, Zurich | 810,723 | $166.8M | 0.46% | −20,229−2.4% | Reduced |
| Millennium Management LLC | 812,858 | $166.9M | 0.12% | −32,488−3.8% | Reduced |
| Snyder Capital Management L P | 813,433 | $167.0M | 3.11% | +25,758+3.3% | Added |
| Primecap Management Co | 823,154 | $169.0M | 0.13% | +4,000+0.5% | Added |
| Nordea Investment Management AB | 852,585 | $176.2M | 0.15% | +760,410+825.0% | Added |
| UBS Group AG | 868,680 | $178.3M | 0.04% | −360,095−29.3% | Reduced |
| Maren Capital LLC | 875,337 | $179.7M | 9.67% | +11,354+1.3% | Added |
| Neuberger Berman Group LLC | 885,001 | $181.7M | 0.14% | +63,632+7.7% | Added |
| Veritas Investment Partners (UK) Ltd. | 886,767 | $182.1M | 3.84% | −31,917−3.5% | Reduced |
| AQR Capital Management LLC | 897,423 | $184.2M | 0.10% | −6,611−0.7% | Reduced |
| Westfield Capital Management Co LP | 900,216 | $184.8M | 0.77% | +541,556+151.0% | Added |
| Gabelli Funds LLC | 944,183 | $193.9M | 1.31% | −9,494−1.0% | Reduced |
| Massachusetts Financial Services Co | 959,937 | $197.1M | 0.06% | +94,544+10.9% | Added |
| Giverny Capital Inc.SuperinvestorGiverny Capital | 979,458 | $201.1M | 6.71% | −17,218−1.7% | Reduced |
| Two Sigma Investments, LP | 1,010,471 | $207.5M | 0.31% | +332,715+49.1% | Added |
| Balyasny Asset Management LLC | 1,070,555 | $219.8M | 0.41% | +903,061+539.2% | Added |
| Capital World Investors | 1,090,990 | $224.0M | 0.03% | −703,489−39.2% | Reduced |
| Man Group plc | 1,097,509 | $225.3M | 0.43% | +312,489+39.8% | Added |
| Qube Research & Technologies Ltd | 1,121,835 | $230.3M | 0.33% | −99,816−8.2% | Reduced |
| Deutsche Bank AG | 1,217,691 | $250.0M | 0.08% | −175,932−12.6% | Reduced |
| HSBC Holdings PLC | 1,263,488 | $259.6M | 0.15% | −52,354−4.0% | Reduced |
| Boston Partners | 1,308,553 | $268.7M | 0.28% | −33,572−2.5% | Reduced |
| Franklin Resources Inc | 1,335,389 | $274.2M | 0.07% | −433,681−24.5% | Reduced |
| Legal & General Group Plc | 1,361,699 | $279.6M | 0.06% | −42,047−3.0% | Reduced |
| Charles Schwab Investment Management Inc | 1,388,042 | $285.0M | 0.04% | +14,626+1.1% | Added |