AMETEK INC AME
COM · Common Stock · CUSIP 031100100 · ISIN US0311001004
US manufacturer of electronic instruments and electromechanical devices
- SectorTechnology
- IndustryIndustrial Instruments For Measurement, Display, and Control
- HeadquartersBerwyn, PA
- Founded1930
- Websiteametek.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($260.6m this quarter). Holder counts are more reliable. Shares outstanding: 229.3m as of 2026-07-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $241.50. Options: 18 managers hold calls ($149.3m notional), 13 hold puts ($88.6m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 754 |
| Q4 2022 | 789 |
| Q1 2023 | 778 |
| Q2 2023 | 822 |
| Q3 2023 | 815 |
| Q4 2023 | 859 |
| Q1 2024 | 911 |
| Q2 2024 | 901 |
| Q3 2024 | 916 |
| Q4 2024 | 989 |
| Q1 2025 | 1,002 |
| Q2 2025 | 1,005 |
| Q3 2025 | 1,034 |
| Q4 2025 | 1,128 |
| Q1 2026 | 1,158 |
| Q2 2026 | 1,197 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 434 | 403 |
| Q4 2024 | 432 | 409 |
| Q1 2025 | 487 | 409 |
| Q2 2025 | 481 | 439 |
| Q3 2025 | 498 | 412 |
| Q4 2025 | 526 | 436 |
| Q1 2026 | 580 | 463 |
| Q2 2026 | 598 | 473 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $48.8m | $15.2m | 0.31 |
| Q4 2025 | $97.4m | $25.6m | 0.26 |
| Q1 2026 | $99.0m | $46.3m | 0.47 |
| Q2 2026 | $149.3m | $88.6m | 0.59 |
Biggest buyers
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Added | +1.0m |
| BlackRock, Inc. | Added | +705.2k |
| MANNING & NAPIER ADVISORS LLC | New | +476.9k |
| LAZARD ASSET MANAGEMENT LLC | Added | +454.6k |
| MILLENNIUM MANAGEMENT LLC | Added | +413.4k |
| Man Group plc | Added | +333.8k |
| AQR CAPITAL MANAGEMENT LLC | Added | +330.6k |
| Assenagon Asset Management S.A. | Added | +311.6k |
| Balyasny Asset Management L.P. | Added | +289.3k |
| GOLDMAN SACHS GROUP INC | Added | +278.0k |
Biggest sellers
| Capital World Investors | Sold out | -1.8m |
| TWO SIGMA INVESTMENTS, LP | Reduced | -1.2m |
| FLOSSBACH VON STORCH SE | Reduced | -720.5k |
| UBS Group AG | Reduced | -546.0k |
| BARCLAYS PLC | Reduced | -446.8k |
| EdgePoint Investment Group Inc. | Reduced | -416.2k |
| Bank Julius Baer & Co. Ltd, Zurich | Reduced | -347.8k |
| CITADEL ADVISORS LLC | Reduced | -327.1k |
| D. E. Shaw & Co., Inc. | Reduced | -299.1k |
| Champlain Investment Partners, LLC | Reduced | -286.9k |
Biggest calls
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $33.9m140.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $27.1m112.1k shares |
| Cartenna Capital, LP | New | $24.2m100.0k shares |
| JANE STREET GROUP, LLC | Added | $22.2m91.9k shares |
| IMC-Chicago, LLC | Added | $15.3m63.2k shares |
| CITADEL ADVISORS LLC | Added | $11.1m45.7k shares |
| Walleye Trading LLC | Added | $4.3m17.8k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | New | $2.6m10.9k shares |
| JPMORGAN CHASE & CO | New | $2.6m10.8k shares |
| TUDOR INVESTMENT CORP ET AL | New | $1.9m7.8k shares |
Biggest puts
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $60.5m250.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $5.3m21.7k shares |
| CITADEL ADVISORS LLC | Added | $4.9m20.3k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $4.8m19.7k shares |
| GROUP ONE TRADING LLC | New | $4.2m17.2k shares |
| JANE STREET GROUP, LLC | Added | $3.2m13.1k shares |
| Walleye Trading LLC | Added | $2.2m9.1k shares |
| IMC-Chicago, LLC | Reduced | $1.6m6.7k shares |
| Hestia Capital Management, LLC | New | $1.5m6.4k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $217.7k900 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.5% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 5 | $33.4m | — |
| Q1 2025 | 0 | — | 2 | $375.4k | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 1 | $1.5m | — |
| Q4 2025 | 0 | — | 5 | $33.0m | — |
| Q1 2026 | 0 | — | 1 | $114.9k | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 1 | $1.0m | 1 | $1.7m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-11 | Stanage Nick L Director | Bought | $1.0m4.0k shares |
| 2026-08-07 | Hermance David F. PRESIDENT - ELECTROMECHANICAL | Sold | $1.7m6.6k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.07% of their portfolio | 19.5m $4.7bn | Added +705.2k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 15.0m $3.6bn | Added +52.3k |
| STATE STREET CORP 0.07% of their portfolio | 10.3m $2.5bn | Added +258.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.11% of their portfolio | 10.0m $2.4bn | Added +101.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.16% of their portfolio | 6.7m $1.6bn | Reduced -186.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 6.1m $1.5bn | Added +17.8k |
| JPMORGAN CHASE & CO 0.06% of their portfolio | 4.4m $1.0bn | Reduced -285.5k |
| NORGES BANK 0.10% of their portfolio | 4.3m $1.0bn | Not comparable |
| FMR LLC 0.04% of their portfolio | 4.3m $1.0bn | Reduced -80.8k |
| MORGAN STANLEY 0.05% of their portfolio | 3.7m $906.3m | Reduced -122.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.12% of their portfolio | 3.0m $724.4m | Added +197.0k |
| Invesco Ltd. 0.06% of their portfolio | 2.9m $706.4m | Reduced -211.2k |
| FLOSSBACH VON STORCH SE 3.00% of their portfolio | 2.7m $662.4m | Reduced -720.5k |
| Bank of New York Mellon Corp 0.10% of their portfolio | 2.6m $624.7m | Added +77.4k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.44% of their portfolio | 2.3m $564.9m | Added +1.0m |
| NORTHERN TRUST CORP 0.07% of their portfolio | 2.3m $561.7m | Reduced -28.5k |
| DIMENSIONAL FUND ADVISORS LP 0.09% of their portfolio | 2.1m $510.6m | Added +35.6k |
| LAZARD ASSET MANAGEMENT LLC 0.76% of their portfolio | 2.1m $501.6m | Added +454.6k |
| GOLDMAN SACHS GROUP INC 0.05% of their portfolio | 2.0m $474.8m | Added +278.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.20% of their portfolio | 1.7m $401.7m | Reduced -118.1k |
| BANK OF AMERICA CORP /DE/ 0.03% of their portfolio | 1.6m $391.8m | Reduced -28.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 1.6m $380.5m | Reduced -59.5k |
| ROYAL BANK OF CANADA 0.06% of their portfolio | 1.5m $367.1m | Added +70.0k |
| Qube Research & Technologies Ltd 0.41% of their portfolio | 1.5m $367.0m | Added +79.2k |
| Man Group plc 0.65% of their portfolio | 1.5m $356.5m | Added +333.8k |
| EdgePoint Investment Group Inc. 2.67% of their portfolio | 1.5m $352.8m | Reduced -416.2k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.11% of their portfolio | 1.4m $352.1m | Added +31.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.05% of their portfolio | 1.4m $347.2m | Added +8.9k |
| Boston Partners 0.31% of their portfolio | 1.4m $343.7m | Added +164.9k |
| AQR CAPITAL MANAGEMENT LLC 0.11% of their portfolio | 1.4m $329.7m | Added +330.6k |
| FRANKLIN RESOURCES INC 0.07% of their portfolio | 1.3m $316.1m | Reduced -17.4k |
| Legal & General Group Plc 0.07% of their portfolio | 1.3m $316.0m | Reduced -48.0k |
| VANGUARD FIDUCIARY TRUST CO 0.07% of their portfolio | 1.3m $311.3m | Reduced -7.8k |
| DEUTSCHE BANK AG\ 0.09% of their portfolio | 1.3m $304.6m | Added +48.5k |
| HSBC HOLDINGS PLC 0.15% of their portfolio | 1.3m $302.3m | Added +90.3k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.90% of their portfolio | 1.2m $289.4m | Reduced -123.8k |
| Amundi 0.07% of their portfolio | 1.2m $282.8m | Reduced -84.6k |
| CITADEL ADVISORS LLC 0.16% of their portfolio | 1.1m $270.5m | Reduced -327.1k |
| NEUBERGER BERMAN GROUP LLC 0.18% of their portfolio | 1.1m $264.3m | Added +75.7k |
| Balyasny Asset Management L.P. 0.47% of their portfolio | 1.1m $254.7m | Added +289.3k |
| AMERICAN CENTURY COMPANIES INC 0.11% of their portfolio | 996.4k $241.1m | Added +63.8k |
| NORDEA INVESTMENT MANAGEMENT AB 0.18% of their portfolio | 919.9k $223.1m | Added +21.7k |
| Maren Capital LLC 10.23% of their portfolio | 912.0k $220.6m | Added +22.5k |
| GABELLI FUNDS LLC 1.34% of their portfolio | 867.9k $210.0m | Reduced -60.9k |
| DekaBank Deutsche Girozentrale 0.30% of their portfolio | 852.1k $176.9m | Unchanged |
| PRIMECAP MANAGEMENT CO/CA/ 0.12% of their portfolio | 823.2k $199.2m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.13% of their portfolio | 783.3k $189.5m | Added +413.4k |
| UBS Group AG 0.03% of their portfolio | 781.2k $189.0m | Reduced -546.0k |
| Navera Investment Management Ltd. 5.07% of their portfolio | 780.6k $188.8m | Reduced -74.1k |
| SNYDER CAPITAL MANAGEMENT L P 3.17% of their portfolio | 757.4k $183.2m | Added +6.6k |
| JONES FINANCIAL COMPANIES LLLP 0.07% of their portfolio | 753.5k $179.1m | Reduced -42.0k |
| Alecta Tjanstepension Omsesidigt 0.74% of their portfolio | 730.4k $176.6m | Unchanged |
| LORD, ABBETT & CO. LLC 0.50% of their portfolio | 725.2k $175.4m | Added +190.6k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.57% of their portfolio | 723.8k $175.1m | Reduced -22.0k |
| NATIXIS ADVISORS, LLC 0.18% of their portfolio | 679.4k $164.4m | Reduced -38.2k |
| Nuveen, LLC 0.04% of their portfolio | 671.6k $162.5m | Reduced -19.2k |
| Cartenna Capital, LP 5.82% of their portfolio | 650.0k $157.3m | Added +115.0k |
| Swiss National Bank 0.08% of their portfolio | 646.0k $156.3m | Reduced -29.6k |
| SG Americas Securities, LLC 0.09% of their portfolio | 633.8k $153.3m | Added +276.9k |
| BESSEMER GROUP INC 0.20% of their portfolio | 606.3k $146.7m | Added +5.5k |
| Giverny Capital Inc. 4.87% of their portfolio | 598.8k $144.9m | Reduced -13.3k |
| D. E. Shaw & Co., Inc. 0.09% of their portfolio | 591.1k $143.0m | Reduced -299.1k |
| 1832 Asset Management L.P. 0.17% of their portfolio | 585.4k $141.6m | Reduced -37.6k |
| Allianz Asset Management GmbH 0.13% of their portfolio | 583.3k $125.0m | Added +79 |
| James Hambro & Partners LLP 5.09% of their portfolio | 581.3k $140.6m | Reduced -2.1k |
| BARCLAYS PLC 0.04% of their portfolio | 577.2k $139.7m | Reduced -446.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.16% of their portfolio | 568.2k $137.4m | Added +8.1k |
| Russell Investments Group, Ltd. 0.12% of their portfolio | 565.9k $136.6m | Added +192.0k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.07% of their portfolio | 551.5k $133.4m | Added +32.3k |
| PFA Pension, Forsikringsaktieselskab 0.34% of their portfolio | 549.0k $132.8m | Added +276.5k |
| HM PAYSON & CO 1.75% of their portfolio | 545.9k $132.1m | Reduced -8.1k |
| GAMCO INVESTORS, INC. ET AL 1.18% of their portfolio | 544.4k $131.7m | Reduced -4.2k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.86% of their portfolio | 543.4k $131.5m | Reduced -14.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.06% of their portfolio | 528.0k $127.7m | Reduced -14.0k |
| AMERIPRISE FINANCIAL INC 0.03% of their portfolio | 526.3k $127.4m | Reduced -5.4k |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.23% of their portfolio | 524.0k $126.8m | Reduced -4.4k |
| Robeco Institutional Asset Management B.V. 0.16% of their portfolio | 522.0k $126.3m | Added +275.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.03% of their portfolio | 507.9k $122.9m | Added +37.8k |
| Compagnie Lombard Odier SCmA 1.32% of their portfolio | 503.7k $121.9m | Reduced -225.5k |
| Sumitomo Mitsui Trust Group, Inc. 0.07% of their portfolio | 499.3k $120.8m | Added +606 |
| Vanguard Global Advisers, LLC 0.06% of their portfolio | 493.7k $119.4m | Reduced -9.0k |
| Point72 Asset Management, L.P. 0.18% of their portfolio | 480.4k $116.2m | Added +106.5k |
| TCW GROUP INC 0.78% of their portfolio | 478.5k $115.8m | Reduced -8.4k |
| MANNING & NAPIER ADVISORS LLC 1.48% of their portfolio | 476.9k $115.4m | New |
| RHUMBLINE ADVISERS 0.08% of their portfolio | 447.0k $108.1m | Reduced -5.5k |
| Thrivent Financial for Lutherans 0.18% of their portfolio | 445.3k $107.7m | Reduced -47.4k |
| Capital International Investors 0.02% of their portfolio | 444.4k $107.0m | Added +12.4k |
| California Public Employees Retirement System 0.06% of their portfolio | 438.8k $106.2m | Added +37.7k |
| BLAIR WILLIAM & CO/IL 0.27% of their portfolio | 436.2k $105.5m | Reduced -21.3k |
| Life Cycle Investment Partners Ltd 0.48% of their portfolio | 425.1k $102.9m | Added +77.3k |
| Port Capital LLC 4.18% of their portfolio | 423.4k $102.4m | Reduced -8.9k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.07% of their portfolio | 421.4k $101.9m | Added +49.2k |
| WELLS FARGO & COMPANY/MN 0.02% of their portfolio | 419.3k $101.4m | Added +12.3k |
| Ensign Peak Advisors, Inc 0.17% of their portfolio | 418.2k $101.2m | Reduced -3.0k |
| Dixon Mitchell Investment Counsel Inc. 3.25% of their portfolio | 413.0k $99.9m | Added +13.2k |
| TWO SIGMA INVESTMENTS, LP 0.07% of their portfolio | 406.7k $98.4m | Reduced -1.2m |
| BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio | 402.8k $97.5m | Reduced -82.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.08% of their portfolio | 402.7k $97.4m | Added +256.3k |
| Bank Julius Baer & Co. Ltd, Zurich 0.25% of their portfolio | 401.0k $96.8m | Reduced -347.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.40% of their portfolio | 392.5k $95.0m | Reduced -115.3k |