Amphenol Corporation (APH) has 20 known insider and institutional holders on record. The largest holder is LOEFFLER MARTIN H with 1,333,146 shares. Other notable holders include NORWITT RICHARD ADAM and Straub Peter.
Over the last 12 months, insiders have made 70 transactions in APH stock — 20 buys (valued at $131.45M) and 16 sells (valued at $181.26M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
APH Insider Ownership
Top Holder
LOEFFLER MARTIN H
1,333,146 shares
Buys (12 mo)
20
$131.45M value
Sells (12 mo)
16
$181.26M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Loeffler Martin H |
Director |
1,333,146 |
2025-12-11 |
|
| 2 |
Norwitt Richard Adam |
President & CEO |
186,104 |
2026-02-13 |
|
| 3 |
Straub Peter |
President, Iss Division |
146,824 |
2025-05-20 |
|
| 4 |
Doherty William J |
President, Cs Division |
146,824 |
2025-05-20 |
|
| 5 |
Treanor John |
Sr VP & Ggm Automotive Group |
137,000 |
2017-05-23 |
|
| 6 |
Livingston Robert |
Director |
135,720 |
2026-02-06 |
|
| 7 |
Booker Martin |
VP & Grp General Mgr, Aipg |
124,000 |
2021-05-24 |
|
| 8 |
Gu Richard |
VP,grp GM Mobile Consumer Prod |
124,000 |
2021-05-24 |
|
| 9 |
Ehrmanntraut Dieter |
VP & Grp GM, Automotive Prod |
124,000 |
2021-05-24 |
|
| 10 |
Raley Zachary W |
SVP Ggm Rf & Broadband |
119,000 |
2020-05-22 |
|
| 11 |
Schneider Richard |
SVP, Amphenol Fci |
78,324 |
2016-12-02 |
|
| 12 |
Lampo Craig A |
Sr VP & CFO |
57,695 |
2025-12-04 |
|
| 13 |
Walter Luc |
President, Hes Division |
53,200 |
2025-10-27 |
|
| 14 |
D'amico Lance E |
See Remarks |
50,000 |
2026-02-19 |
|
| 15 |
Gavelle Jean-luc |
President, Iss Division |
46,816 |
2023-05-23 |
|
| 16 |
Clark Stanley L |
Director |
36,516 |
2023-05-24 |
|
| 17 |
Ivas Michael R. |
VP & Corporate Controller |
25,000 |
2026-02-05 |
|
| 18 |
Badie Ronald P |
Director |
19,965 |
2020-01-06 |
|
| 19 |
Silverman David M |
Senior VP, Human Resources |
18,343 |
2025-11-17 |
|
| 20 |
Craig John D |
Director |
2,403 |
2021-05-21 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-18 |
D'amico Lance E |
See Remarks |
Option Exercise (Sell) |
50,000 |
$22.55 |
$1.13M |
| 2026-02-18 |
Lampo Craig A |
Executive VP & CFO |
Option Exercise (Sell) |
100,000 |
$22.00 |
$2.2M |
| 2026-02-12 |
Norwitt Richard Adam |
President & CEO |
Option Exercise (Sell) |
93,052 |
$22.37 |
$2.08M |
| 2026-02-05 |
Livingston Robert |
Director |
Informative Buy |
10,000 |
$128.51 |
$1.29M |
| 2026-02-04 |
Ivas Michael R. |
VP & Corporate Controller |
Gift (Received) |
25,000 |
- |
- |
| 2026-01-29 |
Ivas Michael R. |
VP & Corporate Controller |
Gift (Received) |
2,536 |
- |
- |
| 2026-01-08 |
Lamba Sanjiv |
Director |
RSU Award |
548 |
$136.25 |
$74.67K |
| 2026-01-08 |
Lamba Sanjiv |
Director |
Unknown |
- |
- |
- |
| 2025-12-10 |
Loeffler Martin H |
Director |
Gift (Given) |
3,228 |
- |
- |
| 2025-12-09 |
Norwitt Richard Adam |
President & CEO |
Gift (Given) |
75,000 |
- |
- |
| 2025-12-03 |
Lampo Craig A |
Sr VP & CFO |
Gift (Given) |
70,000 |
- |
- |
| 2025-12-02 |
Straub Peter |
President, Iss Division |
Informative Sell |
132,000 |
$141.84 |
$18.72M |
| 2025-12-02 |
Doherty William J |
President, Cs Division |
Informative Sell |
80,000 |
$142.00 |
$11.36M |
| 2025-11-26 |
Lampo Craig A |
Sr VP & CFO |
Gift (Given) |
40,000 |
- |
- |
| 2025-11-13 |
Silverman David M |
Senior VP, Human Resources |
Gift (Received) |
18,343 |
$65.96 |
$1.21M |
| 2025-11-11 |
Lampo Craig A |
Sr VP & CFO |
Option Exercise (Sell) |
40,076 |
$22.00 |
$881.47K |
| 2025-11-05 |
Ivas Michael R. |
VP & Corporate Controller |
Option Exercise (Sell) |
120,000 |
$22.00 |
$2.64M |
| 2025-10-31 |
Ivas Michael R. |
VP & Corporate Controller |
Option Exercise (Sell) |
120,000 |
$22.00 |
$2.64M |
| 2025-11-03 |
Silverman David M |
Senior VP, Human Resources |
Informative Sell |
120,000 |
$141.17 |
$16.94M |
| 2025-10-29 |
Doherty William J |
President, Cs Division |
Informative Sell |
80,000 |
$141.04 |
$11.28M |
| 2025-10-29 |
D'amico Lance E |
Sr. VP, Secretary & Gencounsel |
Informative Sell |
120,000 |
$140.01 |
$16.8M |
| 2025-10-28 |
Norwitt Richard Adam |
President & CEO |
Option Exercise (Sell) |
75,000 |
$22.37 |
$1.68M |
| 2025-10-24 |
Walter Luc |
President, Hes Division |
Option Exercise (Sell) |
212,800 |
$33.30 |
$7.09M |
| 2025-09-08 |
Straub Peter |
President, Iss Division |
Option Exercise (Sell) |
44,000 |
$22.37 |
$984.28K |
| 2025-08-29 |
Walter Luc |
President, Hes Division |
Gift (Given) |
18,048 |
- |
- |
