Amphenol APH
US equityMarket cap rank #98Electronic ComponentsOptical CommunicationPower semiconductorApple Ecosystem
$74.59 +$2.95 (+4.12%)
Market closed · Nov 7, 9:40 pm ET · Last extended-hours $74.76 +0.23%
Open$75.24
Prev close$71.64
Day range$73.10 – $75.83
Volume17.22M
Market cap$184.18B
P/E (TTM)32.4
Dividend yield0.67%
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership93.7%-3.21 pts vs. prior quarter
Institutions holding2,762+31 vs. prior quarter
Insider trades (recent)24 buys / 25 sellsNet selling
Short interest1.10% of floatDays to cover 2.6 · as of 15 Oct 2026
Short-sale volume share15.8%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$49.87M (9 inflow days, 11 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 31.4% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 1.25% to 1.10% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Deka Investment GmbH | Mutual Fund | 2026/Q3 | +2,124,599 | 0.2% |
| Capital Research | Mutual Fund | 2026/Q3 | +23,307,924 | 6.2% |
| T. Rowe Price Group, Inc. | Mutual Fund | 2026/Q3 | +10,338,284 | 2.6% |
| Columbia Management Investment Advisers, LLC | Mutual Fund | 2026/Q3 | +7,848,290 | 0.5% |
| Morgan Stanley | Public Company | 2026/Q3 | +7,162,960 | 0.8% |
| Brewin Dolphin Wealth Management Limited | Mutual Fund | 2026/Q3 | +6,250,216 | 0.3% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +4,193,060 | 4.8% |
| Egerton Capital (UK) LLP | Hedge Fund | 2026/Q3 | +3,990,670 | 0.4% |
| AllianceBernstein | Mutual Fund | 2026/Q3 | +3,983,212 | 0.5% |
| Teachers Insurance and Annuity Association-College Retirement Equities Fund | Mutual Fund | 2026/Q3 | +3,468,614 | 1.0% |
| Amundi Asset Management | Mutual Fund | 2026/Q3 | +3,436,380 | 0.7% |
| Wellington Management Group | Mutual Fund | 2026/Q3 | +3,156,496 | 1.3% |
| American Century Investment Management | Mutual Fund | 2026/Q3 | +3,138,730 | 0.6% |
| Swedbank Robur Fonder AB | Mutual Fund | 2026/Q3 | +3,087,280 | 0.4% |
| Balyasny Asset Management L.P. | Hedge Fund | 2026/Q3 | +2,873,136 | 0.1% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 5 Aug 2026 | Craig Lampo | Chief Financial Officer | Other Disposition | -109,094 | – | 728,500 |
| 4 Aug 2026 | David Silverman | Officer | Derivative Exercise and Sale | -240,000 | $87.12 | 53,000 |
| 3 Aug 2026 | Craig Lampo | Chief Financial Officer | Derivative Exercise and Sale | -386,400 | $83.65 | 837,594 |
| 2 Aug 2026 | Lance D'Amico | General Counsel | Derivative Exercise and Sale | -200,000 | $80.99 | 202,800 |
| 30 Jul 2026 | Richard Norwitt | Chairperson & CEO | Derivative Exercise and Sale | -1,372,208 | $81.14 | 5,591,304 |
| 21 May 2026 | Craig Lampo | Chief Financial Officer | Other Derivative Acquisition | +266,322 | $66.03 | 266,322 |
| 21 May 2026 | David Falck | Lead Independent Director | Other Acquisition | +3,104 | – | 192,692 |
| 21 May 2026 | Nancy Altobello | Independent Director | Other Acquisition | +3,104 | – | 40,788 |
| 21 May 2026 | Richard Norwitt | Chairperson & CEO | Other Derivative Acquisition | +929,978 | $66.03 | 929,978 |
| 21 May 2026 | Luc Walter | President of Harsh Environment Solutions Division | Other Derivative Acquisition | +217,618 | $66.03 | 217,618 |
| 21 May 2026 | Robert Livingston | Independent Director | Other Acquisition | +3,104 | – | 279,264 |
| 21 May 2026 | Sanjiv Lamba | Independent Director | Other Acquisition | +3,104 | – | 4,200 |
| 21 May 2026 | Lance D'Amico | General Counsel | Other Derivative Acquisition | +166,040 | $66.03 | 166,040 |
| 21 May 2026 | Rita Lane | Independent Director | Other Acquisition | +3,104 | – | 52,796 |
| 21 May 2026 | David Silverman | Officer | Other Derivative Acquisition | +141,380 | $66.03 | 141,380 |
| 21 May 2026 | Michael Ivas | Officer | Other Derivative Acquisition | +102,268 | $66.03 | 102,268 |
| 21 May 2026 | William Doherty | President of Communications Solutions Division | Other Derivative Acquisition | +217,618 | $66.03 | 217,618 |
| 21 May 2026 | Prahlad Singh | Independent Director | Other Acquisition | +3,104 | – | 25,856 |
| 21 May 2026 | Anne Wolff | Independent Director | Other Acquisition | +3,104 | – | 85,412 |
| 21 May 2026 | Peter Straub | President of the Interconnect & Sensor Systems Division | Other Derivative Acquisition | +217,618 | $66.03 | 217,618 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 27,069,569 | 1.1% | 2.6 |
| 30 Sep 2026 | 30,631,574 | 1.2% | 2.3 |
| 15 Sep 2026 | 31,544,237 | 1.3% | 2.8 |
| 31 Aug 2026 | 13,561,221 | 1.1% | 2.4 |
| 14 Aug 2026 | 14,772,899 | 1.2% | 2.6 |
| 31 Jul 2026 | 15,418,079 | 1.3% | 2.1 |
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