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, Q3 2025
Institutional positions in Ametek Inc as of Sep 30, 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
- 1,034
- +47 vs. Q2 2025
- Shares held
- 199.4M
- −280.9K (−0.1%) vs. Q2 2025
- Total value
- $37.4B
- +$1.30B (+3.6%) vs. Q2 2025
- New holders
- 120
- 390 more added
- Sold out
- 73
- 341 more reduced
17 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Ametek Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dundas Partners LLP | 172,472 | $32.4M | 2.29% | 00.0% | Unchanged |
| Aviva PLC | 174,317 | $32.8M | 0.06% | +1,618+0.9% | Added |
| North Star Asset Management Inc | 178,106 | $33.5M | 1.36% | −110.0% | Reduced |
| Mar Vista Investment Partners LLC | 179,827 | $33.8M | 2.94% | −3,905−2.1% | Reduced |
| Nissay Asset Management Corp | 188,930 | $35.5M | 0.20% | +10,756+6.0% | Added |
| Mountain Pacific Investment Advisers Inc | 191,686 | $36.0M | 5.64% | −164,024−46.1% | Reduced |
| Teacher Retirement System of Texas | 193,395 | $36.4M | 0.15% | +61,267+46.4% | Added |
| CI Private Wealth, LLC | 193,868 | $36.4M | 0.06% | +30,621+18.8% | Added |
| The PNC Financial Services Group, Inc. | 194,321 | $36.5M | 0.02% | −3,962−2.0% | Reduced |
| Manufacturers Life Insurance Company, The | 198,462 | $37.3M | 0.03% | −312,756−61.2% | Reduced |
| State Board of Administration of Florida Retirement System | 199,527 | $37.5M | 0.07% | −14,418−6.7% | Reduced |
| Factory Mutual Insurance Co | 201,800 | $37.9M | 0.37% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 210,064 | $39.5M | 0.05% | +79,277+60.6% | Added |
| Assenagon Asset Management S.A. | 213,676 | $40.2M | 0.06% | +6,363+3.1% | Added |
| Adage Capital Partners GP, L.L.C. | 222,593 | $41.8M | 0.07% | +222,593 | New |
| Mawer Investment Management Ltd. | 227,500 | $42.8M | 0.22% | −9,969−4.2% | Reduced |
| Standard Life Aberdeen plc | 231,553 | $43.3M | 0.07% | +10,120+4.6% | Added |
| SEI Investments Co | 232,370 | $43.7M | 0.05% | +9,143+4.1% | Added |
| Caisse de Depot Et Placement du Quebec | 232,581 | $43.7M | 0.08% | −21,932−8.6% | Reduced |
| Aristotle Atlantic Partners, LLC | 237,463 | $44.6M | 1.30% | −7,202−2.9% | Reduced |
| Envestnet Asset Management Inc | 241,138 | $45.3M | 0.01% | −16,336−6.3% | Reduced |
| Bank of Montreal | 243,403 | $45.8M | 0.02% | +23,424+10.6% | Added |
| Santori & Peters | 245,207 | $46.1M | 16.47% | −793−0.3% | Reduced |
| TimesSquare Capital Management, LLC | 248,055 | $46.6M | 0.67% | −11,882−4.6% | Reduced |
| Guinness Asset Management LTD | 249,862 | $46.7M | 0.74% | −12,041−4.6% | Reduced |
| CIBC Private Wealth Group, LLC | 249,678 | $46.9M | 0.08% | −3,897−1.5% | Reduced |
| Renaissance Technologies LLC | 255,950 | $48.1M | 0.06% | −18,500−6.7% | Reduced |
| CCLA Investment Management Ltd | 258,653 | $48.6M | 0.78% | +21,633+9.1% | Added |
| Jennison Associates LLC | 260,636 | $49.0M | 0.03% | −24,237−8.5% | Reduced |
| Treasurer of the State of North Carolina | 260,881 | $49.0M | 0.15% | −4,173−1.6% | Reduced |
| Interval Partners, LP | 265,944 | $50.0M | 1.07% | +265,944 | New |
| Captrust Financial Advisors | 268,096 | $50.4M | 0.10% | +8,101+3.1% | Added |
| KBC Group NV | 282,085 | $53.0M | 0.13% | −7,549−2.6% | Reduced |
| Alliancebernstein L.P. | 285,073 | $53.6M | 0.02% | +2,511+0.9% | Added |
| RMB Capital Management, LLC | 294,761 | $55.4M | 1.02% | +8,239+2.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 307,889 | $57.9M | 0.10% | +29,465+10.6% | Added |
| Danske Bank A/S | 310,329 | $58.3M | 0.15% | +90,326+41.1% | Added |
| National Pension Service | 312,601 | $58.8M | 0.05% | +6,289+2.1% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 315,110 | $59.0M | 0.15% | +128,501+68.9% | Added |
| Davis R M Inc | 317,777 | $59.7M | 1.04% | −3,152−1.0% | Reduced |
| Great West Life Assurance Co | 351,093 | $65.6M | 0.09% | +11,235+3.3% | Added |
| Raymond James Financial Inc | 350,284 | $65.9M | 0.02% | −14,201−3.9% | Reduced |
| Westfield Capital Management Co LP | 358,660 | $67.4M | 0.28% | −36,756−9.3% | Reduced |
| Fenimore Asset Management Inc | 367,497 | $69.1M | 1.39% | +5,064+1.4% | Added |
| Schonfeld Strategic Advisors LLC | 368,385 | $69.3M | 0.48% | −5,283−1.4% | Reduced |
| Wells Fargo & Company | 374,910 | $70.5M | 0.01% | +7,899+2.2% | Added |
| M.D. Sass Investors Services, Inc. | 376,870 | $70.9M | 5.79% | −24,011−6.0% | Reduced |
| Glenmede Investment Management, LP | 378,202 | $71.1M | 0.34% | −6,803−1.8% | Reduced |
| Janus Henderson Group PLC | 386,702 | $72.7M | 0.03% | +76,780+24.8% | Added |
| Two Sigma Advisers, LP | 390,200 | $73.4M | 0.15% | +10,700+2.8% | Added |
| California State Teachers Retirement System | 400,291 | $75.3M | 0.08% | +51,846+14.9% | Added |
| Dixon Mitchell Investment Counsel Inc. | 401,474 | $75.5M | 2.69% | +2,888+0.7% | Added |
| Capital International Investors | 409,855 | $76.9M | 0.01% | +14,823+3.8% | Added |
| Point72 Asset Management, L.P. | 415,141 | $78.0M | 0.17% | +415,141 | New |
| Harding Loevner LP | 429,956 | $80.8M | 0.59% | −147,967−25.6% | Reduced |
| California Public Employees Retirement System | 434,762 | $81.7M | 0.05% | +2,304+0.5% | Added |
| Canada Pension Plan Investment Board | 447,401 | $84.1M | 0.06% | +129,768+40.9% | Added |
| Port Capital LLC | 452,594 | $85.1M | 3.55% | −23,682−5.0% | Reduced |
| Rhumbline Advisers | 452,726 | $85.1M | 0.07% | −8,439−1.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 458,617 | $86.2M | 0.06% | +18,212+4.1% | Added |
| Freestone Grove Partners LP | 476,035 | $89.5M | 0.67% | +255,641+116.0% | Added |
| American Century Companies Inc | 476,262 | $89.5M | 0.05% | −2,951−0.6% | Reduced |
| Nuveen, LLC | 487,007 | $91.6M | 0.02% | −31,111−6.0% | Reduced |
| Ensign Peak Advisors, Inc | 512,979 | $96.4M | 0.16% | −48,243−8.6% | Reduced |
| Royal London Asset Management Ltd | 516,676 | $97.1M | 0.21% | +54,228+11.7% | Added |
| Thrivent Financial for Lutherans | 525,759 | $98.8M | 0.19% | +350,205+199.5% | Added |
| Blair William & Co | 529,273 | $99.5M | 0.26% | −160,587−23.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 538,246 | $101.2M | 0.06% | +13,300+2.5% | Added |
| Acadian Asset Management LLC | 543,094 | $102.1M | 0.18% | +295,950+119.7% | Added |
| HM Payson & Co | 565,255 | $106.3M | 1.53% | +850+0.2% | Added |
| Natixis Advisors, L.P. | 582,438 | $109.5M | 0.16% | +148,459+34.2% | Added |
| Silvercrest Asset Management Group LLC | 583,242 | $109.6M | 0.73% | −24,861−4.1% | Reduced |
| Bessemer Group Inc | 595,012 | $111.9M | 0.17% | +14,977+2.6% | Added |
| Jarislowsky, Fraser Ltd | 614,702 | $115.6M | 0.64% | −9,712−1.6% | Reduced |
| James Hambro & Partners | 619,182 | $116.4M | 4.13% | −43,970−6.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 621,730 | $116.9M | 0.07% | +199,113+47.1% | Added |
| Gamco Investors, Inc. Et Al | 622,749 | $117.1M | 1.14% | −12,570−2.0% | Reduced |
| Compagnie Lombard Odier SCmA | 629,316 | $118.3M | 1.31% | +629,316 | New |
| Swiss National Bank | 665,525 | $125.1M | 0.07% | −32,900−4.7% | Reduced |
| Two Sigma Investments, LP | 677,756 | $127.4M | 0.20% | +169,523+33.4% | Added |
| Wellington Management Group LLP | 696,846 | $131.0M | 0.02% | −199,533−22.3% | Reduced |
| Voloridge Investment Management, LLC | 708,013 | $133.1M | 0.45% | −71,084−9.1% | Reduced |
| Panagora Asset Management Inc | 765,847 | $144.0M | 0.58% | +218,284+39.9% | Added |
| Man Group plc | 785,020 | $147.6M | 0.29% | +631,649+411.8% | Added |
| Snyder Capital Management L P | 787,675 | $148.1M | 2.80% | +161,615+25.8% | Added |
| Barclays PLC | 807,020 | $151.7M | 0.06% | +143,714+21.7% | Added |
| Primecap Management Co | 819,154 | $154.0M | 0.12% | +40,400+5.2% | Added |
| Neuberger Berman Group LLC | 821,369 | $154.4M | 0.11% | −6,333−0.8% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 830,952 | $156.2M | 0.44% | −542,660−39.5% | Reduced |
| DekaBank Deutsche Girozentrale | 852,057 | $158.4M | 0.27% | 00.0% | Unchanged |
| Millennium Management LLC | 845,346 | $158.9M | 0.13% | +441,365+109.3% | Added |
| Maren Capital LLC | 863,983 | $162.4M | 9.04% | +59,510+7.4% | Added |
| Massachusetts Financial Services Co | 865,393 | $162.7M | 0.05% | −873,674−50.2% | Reduced |
| D. E. Shaw & Co., Inc. | 871,870 | $163.9M | 0.13% | +291,980+50.4% | Added |
| Champlain Investment Partners, LLC | 882,265 | $165.9M | 1.25% | −262,195−22.9% | Reduced |
| BNP Paribas Arbitrage, SA | 887,216 | $166.8M | 0.13% | +338,371+61.7% | Added |
| Ameriprise Financial Inc | 899,359 | $169.1M | 0.04% | −258,086−22.3% | Reduced |
| AQR Capital Management LLC | 904,034 | $169.6M | 0.11% | +247,922+37.8% | Added |
| Veritas Investment Partners (UK) Ltd. | 918,684 | $172.7M | 3.31% | +109,825+13.6% | Added |
| Gabelli Funds LLC | 953,677 | $179.3M | 1.21% | −15,500−1.6% | Reduced |