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 |
|---|---|---|---|---|---|
| Russell Investments Group, Ltd. | 373,945 | $79.8M | 0.09% | +36,199+10.7% | Added |
| Millennium Management LLC | 369,887 | $79.3M | 0.06% | −442,971−54.5% | Reduced |
| Glenmede Trust Co NA | 368,504 | $79.0M | 0.39% | −5,183−1.4% | Reduced |
| M.D. Sass Investors Services, Inc. | 361,795 | $77.6M | 5.88% | −17,185−4.5% | Reduced |
| Fenimore Asset Management Inc | 359,232 | $77.0M | 1.72% | −8,638−2.3% | Reduced |
| SG Americas Securities, LLC | 356,862 | $76.5M | 0.08% | +169,108+90.1% | Added |
| Life Cycle Investment Partners Ltd | 347,858 | $74.6M | 0.48% | +119,459+52.3% | Added |
| Employees Retirement System of Texas | 340,388 | $73.0M | 0.64% | +78,240+29.8% | Added |
| National Pension Service | 333,608 | $71.5M | 0.05% | +27,252+8.9% | Added |
| Captrust Financial Advisors | 324,420 | $69.5M | 0.12% | +55,832+20.8% | Added |
| Janus Henderson Group PLC | 321,113 | $68.8M | 0.03% | −78,040−19.6% | Reduced |
| Danske Bank A/S | 316,902 | $67.9M | 0.16% | −4,006−1.2% | Reduced |
| Davis R M Inc | 307,111 | $65.8M | 1.17% | −4,204−1.4% | Reduced |
| Renaissance Technologies LLC | 306,150 | $65.6M | 0.10% | +151,500+98.0% | Added |
| RMB Capital Management, LLC | 298,156 | $64.4M | 1.15% | +5,758+2.0% | Added |
| Victory Capital Management Inc | 292,912 | $62.8M | 0.04% | +3,757+1.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 287,747 | $61.6M | 0.11% | −1,235−0.4% | Reduced |
| Freestone Grove Partners LP | 285,435 | $61.2M | 0.44% | −308,450−51.9% | Reduced |
| Artisan Partners Limited Partnership | 273,372 | $58.6M | 0.10% | +94,347+52.7% | Added |
| Treasurer of the State of North Carolina | 272,563 | $58.4M | 0.18% | +19,034+7.5% | Added |
| PFA Pension, Forsikringsaktieselskab | 272,483 | $58.4M | 0.18% | −10.0% | Reduced |
| CIBC Bancorp USA Inc. | 269,706 | $57.8M | 0.08% | +269,706 | New |
| Mariner, LLC | 258,360 | $55.4M | 0.06% | +20,985+8.8% | Added |
| Jennison Associates LLC | 256,693 | $55.0M | 0.04% | +123,719+93.0% | Added |
| Great West Life Assurance Co | 253,563 | $54.5M | 0.10% | −6,993−2.7% | Reduced |
| Alliancebernstein L.P. | 260,707 | $53.5M | 0.02% | −17,512−6.3% | Reduced |
| Robeco Institutional Asset Management B.V. | 246,079 | $52.7M | 0.08% | +62,670+34.2% | Added |
| Santori & Peters | 245,207 | $52.6M | 16.36% | 00.0% | Unchanged |
| Aristotle Atlantic Partners, LLC | 243,656 | $52.2M | 2.45% | +10,181+4.4% | Added |
| KBC Group NV | 236,142 | $50.6M | 0.13% | −19,845−7.8% | Reduced |
| Caisse de Depot Et Placement du Quebec | 235,652 | $50.5M | 0.08% | −79,583−25.2% | Reduced |
| Panagora Asset Management Inc | 231,920 | $49.7M | 0.19% | −81,102−25.9% | Reduced |
| Bank of Montreal | 231,492 | $49.6M | 0.02% | −32,769−12.4% | Reduced |
| Standard Life Aberdeen plc | 223,956 | $48.0M | 0.08% | −6,048−2.6% | Reduced |
| Nissay Asset Management Corp | 223,083 | $47.8M | 0.25% | +14,511+7.0% | Added |
| Engineers Gate Manager LP | 220,177 | $47.2M | 0.59% | +202,581+1,151.3% | Added |
| Factory Mutual Insurance Co | 217,300 | $46.6M | 0.52% | +2,200+1.0% | Added |
| TimesSquare Capital Management, LLC | 211,579 | $45.4M | 0.77% | −25,071−10.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 206,241 | $44.2M | 0.07% | +23,400+12.8% | Added |
| Guinness Asset Management LTD | 204,698 | $43.9M | 0.76% | −45,086−18.0% | Reduced |
| Sarasin & Partners LLP | 201,791 | $43.3M | 0.53% | +190,793+1,734.8% | Added |
| Jupiter Asset Management Ltd | 208,242 | $42.9M | 0.23% | +208,242 | New |
| Mawer Investment Management Ltd. | 198,907 | $42.6M | 0.28% | −2,171−1.1% | Reduced |
| State Board of Administration of Florida Retirement System | 197,082 | $42.2M | 0.08% | 00.0% | Unchanged |
| TD Asset Management Inc | 195,320 | $41.9M | 0.03% | +18,255+10.3% | Added |
| The PNC Financial Services Group, Inc. | 193,568 | $41.5M | 0.02% | +574+0.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 193,530 | $41.5M | 0.09% | +79,363+69.5% | Added |
| Aviva PLC | 189,908 | $40.7M | 0.07% | +5,522+3.0% | Added |
| Citigroup Inc | 187,180 | $40.1M | 0.03% | +58,261+45.2% | Added |
| Federation des caisses Desjardins du Quebec | 182,252 | $39.1M | 0.14% | +56,761+45.2% | Added |
| Mountain Pacific Investment Advisers Inc | 180,304 | $38.6M | 6.62% | −7,292−3.9% | Reduced |
| Davidson Kempner Capital Management LP | 180,000 | $38.6M | 0.69% | +55,000+44.0% | Added |
| North Star Asset Management Inc | 175,346 | $37.6M | 1.63% | −2,334−1.3% | Reduced |
| Marshall Wace, LLP | 173,270 | $37.1M | 0.04% | +27,694+19.0% | Added |
| Mar Vista Investment Partners LLC | 171,125 | $36.7M | 3.67% | −4,199−2.4% | Reduced |
| Howard Capital Management Group, LLC | 165,005 | $35.4M | 2.35% | +3,745+2.3% | Added |
| Dundas Partners LLP | 163,876 | $35.1M | 2.80% | −6,219−3.7% | Reduced |
| Teacher Retirement System of Texas | 162,258 | $34.8M | 0.14% | −47,517−22.7% | Reduced |
| Quantinno Capital Management LP | 160,562 | $34.4M | 0.06% | +34,149+27.0% | Added |
| New York State Teachers Retirement System | 160,303 | $34.4M | 0.07% | +100+0.1% | Added |
| Jane Street Group, LLC | 159,234 | $34.1M | 0.04% | +144,301+966.3% | Added |
| Allspring Global Investments Holdings, LLC | 156,089 | $34.1M | 0.06% | +210+0.1% | Added |
| ASR Vermogensbeheer N.V. | 156,281 | $33.5M | 0.39% | −143−0.1% | Reduced |
| Daiwa Securities Group Inc. | 154,948 | $33.2M | 0.10% | +4,476+3.0% | Added |
| Walleye Capital LLC | 152,515 | $32.7M | 0.20% | +62,919+70.2% | Added |
| Storebrand Asset Management AS | 149,514 | $32.0M | 0.09% | +38,004+34.1% | Added |
| National Bank of Canada | 148,841 | $31.9M | 0.03% | −6,536−4.2% | Reduced |
| Gotham Asset Management, LLC | 147,756 | $31.7M | 0.10% | +51,629+53.7% | Added |
| Korea Investment CORP | 147,180 | $31.5M | 0.07% | −26,044−15.0% | Reduced |
| Manufacturers Life Insurance Company, The | 146,353 | $31.4M | 0.03% | −57,200−28.1% | Reduced |
| STRS Ohio | 145,310 | $31.1M | 0.12% | −90.0% | Reduced |
| LPL Financial LLC | 143,610 | $30.8M | 0.01% | +32,154+28.8% | Added |
| Cumberland Partners Ltd | 143,536 | $30.8M | 2.34% | +120,473+522.4% | Added |
| ZWJ Investment Counsel Inc | 140,622 | $30.1M | 1.09% | +20,821+17.4% | Added |
| Vaughan Nelson Investment Management, L.P. | 140,546 | $30.1M | 0.30% | +3,385+2.5% | Added |
| Empire Life Investments Inc. | 137,026 | $30.0M | 1.82% | −8,113−5.6% | Reduced |
| Dudley & Shanley, Inc. | 139,746 | $30.0M | 4.90% | −500.0% | Reduced |
| Roffman Miller Associates Inc | 137,656 | $29.5M | 1.70% | −3,290−2.3% | Reduced |
| Ci Investments Inc. | 136,829 | $29.3M | 0.14% | −12,846−8.6% | Reduced |
| Cornerstone Capital, Inc. | 133,846 | $28.7M | 2.87% | +4,276+3.3% | Added |
| KLP Kapitalforvaltning AS | 133,838 | $28.7M | 0.11% | +53,500+66.6% | Added |
| Groupe la Francaise | 133,546 | $28.6M | 0.40% | +133,546 | New |
| Cresset Asset Management, LLC | 131,104 | $28.1M | 0.12% | +1,151+0.9% | Added |
| King Luther Capital Management Corp | 130,897 | $28.1M | 0.12% | −461−0.4% | Reduced |
| Scopus Asset Management, L.P. | 130,532 | $28.0M | 0.88% | +13,782+11.8% | Added |
| State of Wisconsin Investment Board | 127,816 | $27.4M | 0.06% | +8,116+6.8% | Added |
| Palisade Capital Management LLC | 126,303 | $27.1M | 0.90% | −2,637−2.0% | Reduced |
| Public Employees Retirement Association of Colorado | 126,303 | $27.1M | 0.11% | +104,950+491.5% | Added |
| New York State Common Retirement Fund | 124,925 | $26.8M | 0.04% | −4,200−3.3% | Reduced |
| HRT Financial LP | 122,766 | $26.3M | 0.07% | +47,736+63.6% | Added |
| APG Asset Management N.V. | 141,447 | $26.3M | 0.08% | −10,575−7.0% | Reduced |
| Cerity Partners LLC | 121,804 | $26.1M | 0.04% | +5,690+4.9% | Added |
| First Trust Advisors LP | 120,834 | $25.9M | 0.02% | +20,722+20.7% | Added |
| LGT Group Foundation | 120,577 | $25.8M | 0.32% | −1,872−1.5% | Reduced |
| Pictet Asset Management Holding SA | 120,484 | $25.8M | 0.03% | +283+0.2% | Added |
| Chevy Chase Trust Holdings, Inc. | 118,060 | $25.3M | 0.07% | −2,947−2.4% | Reduced |
| Nomura Asset Management International Inc. | 117,201 | $25.1M | 0.04% | −2,738−2.3% | Reduced |
| Osterweis Capital Management Inc | 116,894 | $25.1M | 1.29% | −26,311−18.4% | Reduced |
| Alyeska Investment Group, L.P. | 116,550 | $25.0M | 0.07% | +108,486+1,345.3% | Added |
| Bridgewater Associates, LP | 116,504 | $25.0M | 0.11% | +111,896+2,428.3% | Added |