ADTRAN Holdings, Inc. (ADTN) has 20 known insider and institutional holders on record. The largest holder is STANTON THOMAS R with 1,126,554 shares. Other notable holders include Wilson James Denson Jr and Nair Balan.
Over the last 12 months, insiders have made 28 transactions in ADTN stock — 13 buys (valued at $449.75K) and 1 sells (valued at $148.24K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ADTN Insider Ownership
Top Holder
STANTON THOMAS R
1,126,554 shares
Buys (12 mo)
13
$449.75K value
Sells (12 mo)
1
$148.24K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Stanton Thomas R |
Chairman & CEO |
1,126,554 |
2026-04-03 |
|
| 2 |
Wilson James Denson Jr |
Chief Revenue Officer |
152,609 |
2026-04-03 |
|
| 3 |
Nair Balan |
Director |
125,373 |
2026-01-05 |
|
| 4 |
Protiva Brian |
Director |
119,361 |
2023-12-08 |
|
| 5 |
Huss H Fenwick |
Director |
107,600 |
2026-01-05 |
|
| 6 |
Walker Kathryn A |
Director |
98,663 |
2026-01-05 |
|
| 7 |
Mccray Gregory James |
Director |
72,893 |
2026-01-05 |
|
| 8 |
Theodosopoulos Nikos |
Director |
65,963 |
2026-01-05 |
|
| 9 |
Nichols Roy J |
Director |
63,844 |
2021-09-07 |
|
| 10 |
Santo Timothy P |
SVP of Finance; CFO |
53,345 |
2026-04-03 |
|
| 11 |
Foliano Michael |
Chief Financial Officer |
41,692 |
2023-03-23 |
|
| 12 |
Scheiterer Eduard |
SVP, Research & Development |
40,027 |
2021-12-02 |
|
| 13 |
Dopfer Ulrich |
Chief Financial Officer |
32,978 |
2025-01-28 |
|
| 14 |
Glingener Christoph |
Chief Technology Officer |
32,775 |
2025-01-28 |
|
| 15 |
Centis Ronald |
SVP, Operations |
27,803 |
2022-06-03 |
|
| 16 |
Kimpe Marc |
SVP, Research & Development |
27,527 |
2022-06-03 |
|
| 17 |
Whalen Daniel T |
Chief Product Officer |
23,200 |
2020-02-19 |
|
| 18 |
Conger Robert |
SVP, Technology & Strategy |
18,111 |
2022-07-01 |
|
| 19 |
Harris Ray |
Chief Information Officer |
16,551 |
2022-06-03 |
|
| 20 |
Mcinnis Jeffrey F |
SVP, Subscriber Solutions |
16,411 |
2020-05-14 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Santo Timothy P |
SVP of Finance; CFO |
RSU Award |
28,252 |
- |
- |
| 2026-04-01 |
Wilson James Denson Jr |
Chief Revenue Officer |
RSU Award |
24,908 |
- |
- |
| 2026-04-01 |
Stanton Thomas R |
Chairman & CEO |
RSU Award |
170,723 |
- |
- |
| 2026-03-19 |
Santo Timothy P |
SVP of Finance; CFO |
Tax Withholding of RSU |
1,501 |
$11.90 |
$17.86K |
| 2026-03-04 |
Jacqueline Hourigan Rice |
Director |
Informative Sell |
14,406 |
$10.29 |
$148.24K |
| 2025-01-24 |
Stanton Thomas R |
Chairman & CEO |
RSU Award |
39,735 |
- |
- |
| 2026-01-26 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
1,309 |
$9.24 |
$12.1K |
| 2026-01-26 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
1,087 |
$9.24 |
$10.04K |
| 2026-01-26 |
Stanton Thomas R |
Chairman & CEO |
Tax Withholding of RSU |
12,407 |
$9.24 |
$114.64K |
| 2026-01-26 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
998 |
$9.73 |
$9.71K |
| 2026-01-24 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
1,227 |
$9.55 |
$11.72K |
| 2026-01-26 |
Stanton Thomas R |
Chairman & CEO |
Tax Withholding of RSU |
14,409 |
$9.73 |
$140.2K |
| 2026-01-24 |
Stanton Thomas R |
Chairman & CEO |
Tax Withholding of RSU |
17,535 |
$9.55 |
$167.46K |
| 2026-01-20 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
765 |
$9.24 |
$7.07K |
| 2026-01-20 |
Stanton Thomas R |
Chairman & CEO |
Tax Withholding of RSU |
10,247 |
$9.24 |
$94.68K |
| 2025-12-31 |
Jacqueline Hourigan Rice |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-12-31 |
Theodosopoulos Nikos |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-12-31 |
Nair Balan |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-12-31 |
Mccray Gregory James |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-12-31 |
Walker Kathryn A |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-12-31 |
Huss H Fenwick |
Director |
RSU Award |
13,809 |
- |
- |
| 2025-11-28 |
Santo Timothy P |
SVP of Finance; CFO |
Informative Buy |
6,150 |
$8.02 |
$49.32K |
| 2025-11-26 |
Theodosopoulos Nikos |
Director |
Informative Buy |
12,859 |
$7.81 |
$100.43K |
| 2025-11-24 |
Stanton Thomas R |
Chairman & CEO |
Informative Buy |
40,928 |
$7.33 |
$300K |
| 2025-11-17 |
Wilson James Denson Jr |
Chief Revenue Officer |
Tax Withholding of RSU |
468 |
$7.33 |
$3.43K |
