Amphenol
APH · NYSE
Who owns APH
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 76.4% of APH’s shares.
- Vanguard Capital Management, LLC13.1%
- BlackRock Institutional Trust Company, N.A.11.1%
- Fidelity Management & Research Company LLC10.7%
- State Street Investment Management (US)9.7%
- Next 6 largest institutions31.8%
- All other shareholders23.6%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 160.69M | 13.06% |
| BlackRock Institutional Trust Company, N.A. | 137.00M | 11.14% |
| Fidelity Management & Research Company LLC | 131.84M | 10.72% |
| State Street Investment Management (US) | 118.99M | 9.67% |
| Capital International Investors | 86.07M | 7.00% |
| Vanguard Portfolio Management, LLC | 71.38M | 5.80% |
| Geode Capital Management, L.L.C. | 62.14M | 5.05% |
| T. Rowe Price Associates, Inc. | 60.27M | 4.90% |
| Capital Research Global Investors | 58.98M | 4.79% |
| JP Morgan Asset Management | 52.69M | 4.28% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 78.35M | 6.37% |
| Vanguard 500 Index Fund | 64.59M | 5.25% |
| Fidelity Contrafund | 37.61M | 3.06% |
| American Funds Growth Fund of America | 37.13M | 3.02% |
| Statens Pensjonsfond Utland | 36.89M | 3.00% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $199.12M (10 trades) of APH on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Lampo Craig A | Gift | 54.55K | — |
| Silverman David M | Option exercise | 120.00K | — |
| Silverman David M | Sale | 120.00K | $20.91M |
| Silverman David M | Option exercise | 120.00K | $2.64M |
| Lampo Craig A | Option exercise | 193.20K | — |
| Lampo Craig A | Sale | 193.20K | $32.32M |
| Lampo Craig A | Option exercise | 193.20K | $4.32M |
| D'AMICO LANCE E | Option exercise | 10.00K | — |
| D'AMICO LANCE E | Option exercise | 40.00K | — |
| D'AMICO LANCE E | Option exercise | 50.00K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Dan Newhouse | Purchase | $1K–$15K | Jul 10, 2026 |
| Rick LarsenHouse | Purchase | $1K–$15K | Jul 8, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 30.63M
- Days to cover
- 2.29
- % of shares outstanding
- 2.49%
- Average daily volume
- 13.40M
- Change since last report
- −2.9%
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