ADTN's three largest insider shareholders as of June 02, 2026 are Thomas R Stanton (Chairman Ceo, 1.13Mn shares), Brian Protiva (Ceo Of Adva, 253.55K shares), James Denson Jr Wilson (Chief Revenue Officer, 152.61K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Roy J Nichols | - | 63,870 | 0 | 07 Sep, 2021 |
| Thomas R Stanton | Chairman Ceo | 1,126,554 | 0 | 03 Apr, 2026 |
| H Fenwick Huss | - | 107,600 | 0 | 05 Jan, 2026 |
| Kathryn A Walker | - | 98,663 | 0 | 05 Jan, 2026 |
| Gregory James Mccray | - | 72,893 | 0 | 05 Jan, 2026 |
| James Denson Jr Wilson | Chief Revenue Officer | 152,609 | 0 | 03 Apr, 2026 |
| Balan Nair | - | 125,373 | 0 | 05 Jan, 2026 |
| Nikos Theodosopoulos | - | 65,963 | 0 | 05 Jan, 2026 |
| Eduard Scheiterer | Svp, Research Development | 40,027 | 0 | 02 Dec, 2021 |
| Hourigan Rice Jacqueline | - | 0 | 39,345 | 04 Jan, 2023 |
| Johanna Hey | - | 8,294 | 0 | 21 Sep, 2023 |
| Brian Protiva | Ceo Of Adva | 253,545 | 0 | 03 Jan, 2024 |
| Christoph Glingener | Chief Technology Officer | 46,645 | 0 | 28 Jan, 2025 |
| Ulrich Dopfer | Chief Financial Officer | 48,195 | 0 | 28 Jan, 2025 |
| Timothy P Santo | Svp Of Finance; Cfo | 53,345 | 0 | 03 Apr, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Timothy P Santo | Common Stock | A | 28,252 | $0.00 | 53,345 | D | A |
| 01 Apr, 2026 | Thomas R Stanton | Common Stock | A | 170,723 | $0.00 | 1,126,554 | D | A |
| 01 Apr, 2026 | Timothy P Santo | Common Stock | A | 28,252 | $0.00 | 53,345 | D | A |
| 01 Apr, 2026 | Thomas R Stanton | Common Stock | A | 170,723 | $0.00 | 1,126,554 | D | A |
| 01 Apr, 2026 | James Denson Jr Wilson | Common Stock | A | 24,908 | $0.00 | 152,609 | D | A |
| 01 Apr, 2026 | James Denson Jr Wilson | Common Stock | A | 24,908 | $0.00 | 152,609 | D | A |
| 19 Mar, 2026 | Timothy P Santo | Common Stock | D | 1,501 | $11.90 | 25,093 | D | F |
| 19 Mar, 2026 | Timothy P Santo | Common Stock | D | 1,501 | $11.90 | 25,093 | D | F |
| 04 Mar, 2026 | Hourigan Rice Jacqueline | Common Stock | D | 14,406 | $10.29 | 13,809 | D | S |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 1,309 | $9.24 | 127,701 | D | F |
| 26 Jan, 2026 | James Denson Jr Wilson | Common Stock | D | 1,309 | $9.24 | 127,701 | D | F |
| 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 | A | 3,777 | $0.00 | 129,010 | D | A |
| 26 Jan, 2026 | Thomas R Stanton | Common Stock | A | 27,973 | $0.00 | 967,878 | D | A |
| 26 Jan, 2026 | Thomas R Stanton | Common Stock | A | 27,973 | $0.00 | 967,878 | D | A |
| 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 | D | 12,407 | $9.24 | 955,471 | D | F |
| 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 | 1,087 | $9.24 | 127,923 | D | F |
| 24 Jan, 2026 | Thomas R Stanton | Common Stock | D | 17,535 | $9.55 | 954,314 | D | F |