Amphenol APH
Amphenol is the 63rd largest S&P 500 company by market cap, worth $183 billion. 9 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 7 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 10.5% of the company.
- CEO
- Richard Adam Norwitt
- Sector
- Information Technology
- Sub-industry
- Electronic Components
- Headquarters
- Wallingford, Connecticut
- Founded
- 1932
- More
- Wikipedia
- Market cap
- $183B
- 63rd largest, 23 Oct 2026 close
- Price to sales
- 7.9
- Market cap over revenue
- Market cap per employee
- $1.1M
- Market cap over employees
- Connections
- 2
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of Amphenol. Where a company has several share classes, the share is of its total value. Stakes are of the shares out at 30 Jun 2026; the count has since grown 2 times.
13F filings for the quarter to 30 Jun 2026
Board and officers
2 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (9) | |
| Richard Adam NorwittPresident & CEO | |
| Nancy A. AltobelloDirector | |
| David P. FalckDirector | |
| Sanjiv LambaDirectorAlso at Linde | |
| Rita S. LaneDirector | |
| Robert LivingstonDirector | |
| Martin H. LoefflerDirectorLast filed 11 Dec 2025 | |
| Prahlad R. SinghDirectorAlso at Revvity | |
| Anne Clarke WolffDirector | |
| Officers (7) | |
| Craig A. LampoEVP& CFOLast filed 6 Aug 2026 | |
| Lance E. D'AmicoEVP, Secretary & GenCounselLast filed 5 Aug 2026 | |
| William J. DohertyPresident, CS DivisionLast filed 27 May 2026 | |
| Michael R. IvasSVP & Corporate ControllerLast filed 27 May 2026 | |
| David M. SilvermanEVP, Human ResourcesLast filed 5 Aug 2026 | |
| Peter StraubPresident, ISS DivisionLast filed 27 May 2026 | |
| Luc WalterPresident, HES DivisionLast filed 27 May 2026 | |
Companies that share people with Amphenol
Each person's title here, then at the other company.
Amphenol's market cap since December 2008
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $183B |
| 26 Dec 2025 | $168B |
| 27 Dec 2024 | $85.3B |
| 29 Dec 2023 | $59.3B |
| 30 Dec 2022 | $45.3B |
| 31 Dec 2021 | $52.3B |
| 25 Dec 2020 | $38.6B |
| 27 Dec 2019 | $32.0B |
| 28 Dec 2018 | $24.3B |
| 29 Dec 2017 | $26.8B |
| 30 Dec 2016 | $20.7B |
| 25 Dec 2015 | $16.5B |
| 26 Dec 2014 | $17.1B |
| 27 Dec 2013 | $14.0B |
| 28 Dec 2012 | $10.2B |
| 30 Dec 2011 | $7.5B |
| 31 Dec 2010 | $9.2B |
| 25 Dec 2009 | $8.0B |
| 26 Dec 2008 | $4.1B |
Download Amphenol's data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 31 Dec 2025
- Employees
- 170,000
We believe this structure, with more than 140 general managers running unique, independent businesses, creates an environment and culture where each of our general managers has a more direct link to the success of their individual businesses and a more personal connection to the employees they oversee and the communities in which they operate.鈥婣s of December 31, 2025, the Company had approximately 170,000 employees worldwide, of which approximately 15,000 were located in the United States.
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $512 million of stock in 19 sales and bought $1.3 million in 1 purchase in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 5 Aug 2026Sale | David M. SilvermanEVP, Human Resources | $21M |
| 4 Aug 2026Sale | Craig A. LampoEVP& CFO | $32M |
| 3 Aug 2026Sale | Lance E. D'AmicoEVP, Secretary & GenCounsel | $16M |
| 31 Jul 2026Sale | Richard Adam NorwittPresident & CEO | $111M |
| 5 May 2026Sale | Richard Adam NorwittPresident & CEO | $2.5M |
| 4 May 2026Sale | Richard Adam NorwittPresident & CEO | $7.4M |
| 1 May 2026Sale | Richard Adam NorwittPresident & CEO | $8.8M |
| 18 Feb 2026Sale | Craig A. LampoEVP& CFO | $15M |
| 18 Feb 2026Sale | Lance E. D'AmicoEVP, Secretary & GenCounsel | $7.5M |
| 12 Feb 2026Sale | Richard Adam NorwittPresident & CEO | $90M |
Showing 10 of 20 trades
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
10 people disclosed 10 purchases and 5 sales of Amphenol stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 18 Aug 2026 | Gilbert CisnerosHouse, D-CA 路 Bought | $1K to $15K |
| 8 Jul 2026 | Rick LarsenHouse, D-WA 路 Bought | $1K to $15K |
| 26 May 2026 | Michael T. McCaulHouse, R-TX 路 Bought | $15K to $50K |
| 22 May 2026 | Michael T. McCaulHouse, R-TX 路 Bought | $15K to $50K |
| 27 Mar 2026 | Alan ArmstrongSenate, R-OK 路 Bought | $1K to $15K |
| 23 Sep 2025 | Valerie HoyleHouse, D-OR 路 Sold | $1K to $15K |
| 10 Apr 2025 | Byron DonaldsHouse, R-FL 路 Bought | $1K to $15K |
| 10 Apr 2025 | Byron DonaldsHouse, R-FL 路 Bought | $1K to $15K |
| 8 Apr 2025 | Rob BresnahanHouse, R-PA 路 Bought | $1K to $15K |
| 2 Jan 2025 | James ComerHouse, R-KY 路 Bought | $1K to $15K |
Showing 10 of 15 trades
Not on file: no WARN layoff notices under its own name since October 2023.