According to recent filings covering the 90 days ending February 07, 2026, the three most significant insider holders at ADTRAN Holdings are Chairman & Ceo Thomas R Stanton (955.47K shares), Director Brian Protiva (372.91K shares), Chief Revenue Officer James Denson Jr Wilson (131.82K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Thomas R Stanton | Chairman & Ceo | 955,471 | 28 Jan, 2026 |
| Brian Protiva | 372,906 | 03 Jan, 2024 | |
| James Denson Jr Wilson | Chief Revenue Officer | 131,819 | 30 Jan, 2026 |
| Balan Nair | 125,373 | 05 Jan, 2026 | |
| H Fenwick Huss | 107,600 | 05 Jan, 2026 | |
| Michael Foliano | Chief Financial Officer | 107,235 | 04 Jan, 2023 |
| Kathryn A Walker | 98,663 | 05 Jan, 2026 | |
| Gregory James Mccray | 72,893 | 05 Jan, 2026 | |
| Hourigan Rice Jacqueline | 67,560 | 05 Jan, 2026 | |
| Nikos Theodosopoulos | 65,963 | 05 Jan, 2026 | |
| Roy J Nichols | 63,870 | 07 Sep, 2021 | |
| Ulrich Dopfer | Chief Financial Officer | 48,195 | 28 Jan, 2025 |
| Christoph Glingener | Chief Technology Officer | 46,645 | 28 Jan, 2025 |
| Eduard Scheiterer | Svp And Research & Development | 40,027 | 02 Dec, 2021 |
| Timothy P Santo | Svp Of Finance; Cfo | 26,594 | 01 Dec, 2025 |
| Johanna Hey | 8,294 | 21 Sep, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 26 Jan, 2026 | Thomas R Stanton | Common Stock | D | 14,409 | $9.73 | 939,905 | D | F |
| 26 Jan, 2026 | Thomas R Stanton | Common Stock | D | 12,407 | $9.24 | 955,471 | D | F |
| 26 Jan, 2026 | Thomas R Stanton | Common Stock | A | 27,973 | $0.00 | 967,878 | D | A |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | A | 3,777 | $0.00 | 129,010 | D | A |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 1,087 | $9.24 | 127,923 | D | F |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 998 | $9.73 | 125,233 | D | F |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 1,309 | $9.24 | 127,701 | D | F |
| 24 Jan, 2026 | Thomas R Stanton | Common Stock | D | 17,535 | $9.55 | 954,314 | D | F |
| 24 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 1,227 | $9.55 | 126,231 | D | F |
| 20 Jan, 2026 | Thomas R Stanton | Common Stock | D | 10,247 | $9.24 | 971,849 | D | F |
| 20 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 765 | $9.24 | 127,458 | D | F |
| 31 Dec, 2025 | H Fenwick Huss | Common Stock | A | 13,809 | $0.00 | 107,600 | D | A |
| 31 Dec, 2025 | Kathryn A Walker | Common Stock | A | 13,809 | $0.00 | 98,663 | D | A |
| 31 Dec, 2025 | Gregory James Mccray | Common Stock | A | 13,809 | $0.00 | 72,893 | D | A |
| 31 Dec, 2025 | Balan Nair | - | - | 125,373 | D | |||
| 31 Dec, 2025 | Balan Nair | Common Stock | A | 13,809 | $0.00 | 125,373 | D | A |
| 31 Dec, 2025 | Nikos Theodosopoulos | Common Stock | A | 13,809 | $0.00 | 65,963 | D | A |
| 31 Dec, 2025 | Hourigan Rice Jacqueline | Common Stock | A | 13,809 | $0.00 | 28,215 | D | A |
| 28 Nov, 2025 | Timothy P Santo | - | - | 26,594 | D | |||
| 28 Nov, 2025 | Timothy P Santo | Common Stock | A | 6,150 | $8.02 | 26,594 | D | P |