Ametek Inc
Ownership
Ownership Structure
Who owns Ametek Inc (AME)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.4% of the shares are freely tradable; institutional investors hold 92.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.52 | 19,533,471 | +3.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.53 | 14,978,776 | +0.4 | 06/30/2026 |
| State Street Corp | 4.51 | 10,342,632 | +2.6 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.34 | 9,952,184 | +1.0 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 2.94 | 6,737,801 | -2.7 | 06/30/2026 |
| Geode Capital Management, LLC | 2.68 | 6,143,082 | +0.3 | 06/30/2026 |
| JPMorgan Chase & Co | 1.91 | 4,371,879 | -6.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 7,274,826 | -0.1 | 09/30/2026 |
| Vanguard 500 Index Investor | 2.63 | 6,021,196 | -1.1 | 09/30/2026 |
| Vanguard MStar Mid Cap Index Instl | 2.14 | 4,909,264 | -1.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Hermance David F. | PRESIDENT - ELECTROMECHANICAL | 42,509 | 10,282,927 $ | Aug 7, 2026 | direct |
| Stanage Nick L | Director | 4,760 | 1,151,444 $ | Aug 11, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 11, 2026 | Stanage Nick L | Director | Buy | 4,000 | 255.85 | 1,023,400 |
| Aug 7, 2026 | Hermance David F. | PRESIDENT - ELECTROMECHANICAL | Sell | 6,608 | 254.00 | 1,678,432 |
| Aug 7, 2026 | Hermance David F. | PRESIDENT - ELECTROMECHANICAL | Other | 6,608 | 85.45 | 564,654 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.