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, Q1 2026
Institutional positions in Ametek Inc as of Mar 31, 2026. 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
- 1,159
- +49 vs. Q4 2025
- Shares held
- 200.9M
- +27.5M (+15.9%) vs. Q4 2025
- Total value
- $43.0B
- +$7.42B (+20.8%) vs. Q4 2025
- New holders
- 138
- 466 more added
- Sold out
- 89
- 372 more reduced
18 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Ametek Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Quantinno Capital Management LP | 160,562 | $34.4M | 0.06% | +34,149+27.0% | Added |
| Teacher Retirement System of Texas | 162,258 | $34.8M | 0.14% | −47,517−22.7% | Reduced |
| Dundas Partners LLP | 163,876 | $35.1M | 2.80% | −6,219−3.7% | Reduced |
| Howard Capital Management Group, LLC | 165,005 | $35.4M | 2.35% | +3,745+2.3% | Added |
| Mar Vista Investment Partners LLC | 171,125 | $36.7M | 3.67% | −4,199−2.4% | Reduced |
| Marshall Wace, LLP | 173,270 | $37.1M | 0.04% | +27,694+19.0% | Added |
| North Star Asset Management Inc | 175,346 | $37.6M | 1.63% | −2,334−1.3% | Reduced |
| Davidson Kempner Capital Management LP | 180,000 | $38.6M | 0.69% | +55,000+44.0% | Added |
| Mountain Pacific Investment Advisers Inc | 180,304 | $38.6M | 6.62% | −7,292−3.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 182,252 | $39.1M | 0.14% | +56,761+45.2% | Added |
| Citigroup Inc | 187,180 | $40.1M | 0.03% | +58,261+45.2% | Added |
| Aviva PLC | 189,908 | $40.7M | 0.07% | +5,522+3.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 193,530 | $41.5M | 0.09% | +79,363+69.5% | Added |
| The PNC Financial Services Group, Inc. | 193,568 | $41.5M | 0.02% | +574+0.3% | Added |
| TD Asset Management Inc | 195,320 | $41.9M | 0.03% | +18,255+10.3% | Added |
| State Board of Administration of Florida Retirement System | 197,082 | $42.2M | 0.08% | 00.0% | Unchanged |
| Mawer Investment Management Ltd. | 198,907 | $42.6M | 0.28% | −2,171−1.1% | Reduced |
| Jupiter Asset Management Ltd | 208,242 | $42.9M | 0.23% | +208,242 | New |
| Sarasin & Partners LLP | 201,791 | $43.3M | 0.53% | +190,793+1,734.8% | Added |
| Guinness Asset Management LTD | 204,698 | $43.9M | 0.76% | −45,086−18.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 206,241 | $44.2M | 0.07% | +23,400+12.8% | Added |
| TimesSquare Capital Management, LLC | 211,579 | $45.4M | 0.77% | −25,071−10.6% | Reduced |
| Factory Mutual Insurance Co | 217,300 | $46.6M | 0.52% | +2,200+1.0% | Added |
| Engineers Gate Manager LP | 220,177 | $47.2M | 0.59% | +202,581+1,151.3% | Added |
| Nissay Asset Management Corp | 223,083 | $47.8M | 0.25% | +14,511+7.0% | Added |
| Standard Life Aberdeen plc | 223,956 | $48.0M | 0.08% | −6,048−2.6% | Reduced |
| Bank of Montreal | 231,492 | $49.6M | 0.02% | −32,769−12.4% | Reduced |
| Panagora Asset Management Inc | 231,920 | $49.7M | 0.19% | −81,102−25.9% | Reduced |
| Caisse de Depot Et Placement du Quebec | 235,652 | $50.5M | 0.08% | −79,583−25.2% | Reduced |
| KBC Group NV | 236,142 | $50.6M | 0.13% | −19,845−7.8% | Reduced |
| Aristotle Atlantic Partners, LLC | 243,656 | $52.2M | 2.45% | +10,181+4.4% | Added |
| Santori & Peters | 245,207 | $52.6M | 16.36% | 00.0% | Unchanged |
| Robeco Institutional Asset Management B.V. | 246,079 | $52.7M | 0.08% | +62,670+34.2% | Added |
| Alliancebernstein L.P. | 260,707 | $53.5M | 0.02% | −17,512−6.3% | Reduced |
| Great West Life Assurance Co | 253,563 | $54.5M | 0.10% | −6,993−2.7% | Reduced |
| Jennison Associates LLC | 256,693 | $55.0M | 0.04% | +123,719+93.0% | Added |
| Mariner, LLC | 258,360 | $55.4M | 0.06% | +20,985+8.8% | Added |
| CIBC Bancorp USA Inc. | 269,706 | $57.8M | 0.08% | +269,706 | New |
| PFA Pension, Forsikringsaktieselskab | 272,483 | $58.4M | 0.18% | −10.0% | Reduced |
| Treasurer of the State of North Carolina | 272,563 | $58.4M | 0.18% | +19,034+7.5% | Added |
| Artisan Partners Limited Partnership | 273,372 | $58.6M | 0.10% | +94,347+52.7% | Added |
| Freestone Grove Partners LP | 285,435 | $61.2M | 0.44% | −308,450−51.9% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 287,747 | $61.6M | 0.11% | −1,235−0.4% | Reduced |
| Victory Capital Management Inc | 292,912 | $62.8M | 0.04% | +3,757+1.3% | Added |
| RMB Capital Management, LLC | 298,156 | $64.4M | 1.15% | +5,758+2.0% | Added |
| Renaissance Technologies LLC | 306,150 | $65.6M | 0.10% | +151,500+98.0% | Added |
| Davis R M Inc | 307,111 | $65.8M | 1.17% | −4,204−1.4% | Reduced |
| Danske Bank A/S | 316,902 | $67.9M | 0.16% | −4,006−1.2% | Reduced |
| Janus Henderson Group PLC | 321,113 | $68.8M | 0.03% | −78,040−19.6% | Reduced |
| Captrust Financial Advisors | 324,420 | $69.5M | 0.12% | +55,832+20.8% | Added |
| National Pension Service | 333,608 | $71.5M | 0.05% | +27,252+8.9% | Added |
| Employees Retirement System of Texas | 340,388 | $73.0M | 0.64% | +78,240+29.8% | Added |
| Life Cycle Investment Partners Ltd | 347,858 | $74.6M | 0.48% | +119,459+52.3% | Added |
| SG Americas Securities, LLC | 356,862 | $76.5M | 0.08% | +169,108+90.1% | Added |
| Fenimore Asset Management Inc | 359,232 | $77.0M | 1.72% | −8,638−2.3% | Reduced |
| M.D. Sass Investors Services, Inc. | 361,795 | $77.6M | 5.88% | −17,185−4.5% | Reduced |
| Glenmede Trust Co NA | 368,504 | $79.0M | 0.39% | −5,183−1.4% | Reduced |
| Millennium Management LLC | 369,887 | $79.3M | 0.06% | −442,971−54.5% | Reduced |
| Russell Investments Group, Ltd. | 373,945 | $79.8M | 0.09% | +36,199+10.7% | Added |
| Vanguard Asset Management, Ltd | 372,139 | $79.8M | 0.07% | +372,139 | New |
| Point72 Asset Management, L.P. | 373,872 | $80.1M | 0.14% | +248,840+199.0% | Added |
| Canada Pension Plan Investment Board | 376,304 | $80.7M | 0.05% | +42,869+12.9% | Added |
| Harding Loevner LP | 378,705 | $81.2M | 0.84% | −42,985−10.2% | Reduced |
| California State Teachers Retirement System | 387,696 | $83.1M | 0.09% | −10,199−2.6% | Reduced |
| Raymond James Financial Inc | 390,221 | $83.6M | 0.03% | +5,329+1.4% | Added |
| Dixon Mitchell Investment Counsel Inc. | 399,784 | $85.7M | 2.98% | −1,955−0.5% | Reduced |
| California Public Employees Retirement System | 401,034 | $86.0M | 0.05% | −30,304−7.0% | Reduced |
| Prudential Financial Inc | 405,754 | $87.0M | 0.11% | +272,252+203.9% | Added |
| Wells Fargo & Company | 407,026 | $87.2M | 0.02% | +21,551+5.6% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 415,367 | $89.0M | 0.10% | +19,443+4.9% | Added |
| SEI Investments Co | 419,188 | $89.9M | 0.08% | +74,431+21.6% | Added |
| Ensign Peak Advisors, Inc | 421,220 | $90.3M | 0.17% | −26,305−5.9% | Reduced |
| Champlain Investment Partners, LLC | 425,358 | $91.2M | 1.16% | −191,499−31.0% | Reduced |
| Capital International Investors | 432,081 | $91.9M | 0.02% | +37,190+9.4% | Added |
| Port Capital LLC | 432,246 | $92.7M | 4.12% | −19,458−4.3% | Reduced |
| Rhumbline Advisers | 452,471 | $97.0M | 0.08% | −848−0.2% | Reduced |
| Blair William & Co | 457,447 | $98.1M | 0.28% | −28,727−5.9% | Reduced |
| Envestnet Asset Management Inc | 470,099 | $100.8M | 0.03% | +285,682+154.9% | Added |
| BNP Paribas Arbitrage, SA | 485,358 | $104.0M | 0.07% | −24,467−4.8% | Reduced |
| TCW Group Inc | 486,922 | $104.4M | 0.79% | +9,722+2.0% | Added |
| Thrivent Financial for Lutherans | 492,649 | $105.6M | 0.20% | +2,225+0.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 498,704 | $106.9M | 0.07% | −28,415−5.4% | Reduced |
| Vanguard Global Advisers, LLC | 502,666 | $107.8M | 0.06% | +502,666 | New |
| Voloridge Investment Management, LLC | 507,748 | $108.8M | 0.44% | −268,312−34.6% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 519,244 | $111.3M | 0.07% | +32,006+6.6% | Added |
| Royal London Asset Management Ltd | 528,403 | $113.3M | 0.24% | −9,700−1.8% | Reduced |
| Ameriprise Financial Inc | 531,746 | $113.9M | 0.03% | +9,204+1.8% | Added |
| Lord, Abbett & Co. LLC | 534,546 | $114.6M | 0.37% | +534,546 | New |
| Cartenna Capital, LP | 535,000 | $114.7M | 5.00% | +185,000+52.9% | Added |
| Arrowstreet Capital, Limited Partnership | 542,044 | $116.2M | 0.06% | +97,716+22.0% | Added |
| Gamco Investors, Inc. Et Al | 548,597 | $117.6M | 1.16% | −58,262−9.6% | Reduced |
| HM Payson & Co | 553,980 | $118.8M | 1.71% | −13,360−2.4% | Reduced |
| Silvercrest Asset Management Group LLC | 558,126 | $119.6M | 0.86% | +4,336+0.8% | Added |
| Acadian Asset Management LLC | 560,118 | $120.1M | 0.17% | +65,802+13.3% | Added |
| Allianz Asset Management GmbH | 583,261 | $125.0M | 0.14% | −19,013−3.2% | Reduced |
| James Hambro & Partners | 583,399 | $125.0M | 4.90% | −25,356−4.2% | Reduced |
| Bessemer Group Inc | 600,812 | $128.8M | 0.20% | +17,043+2.9% | Added |
| Giverny Capital Inc.SuperinvestorGiverny Capital | 612,058 | $131.2M | 4.80% | −367,400−37.5% | Reduced |
| 1832 Asset Management L.P. | 622,977 | $133.5M | 0.18% | −179,142−22.3% | Reduced |
| Swiss National Bank | 675,625 | $144.8M | 0.08% | +42,700+6.7% | Added |