ADTN · Insider Trading
ADTRAN Holdings, Inc. Common Stock
Every open-market purchase and sale reported by ADTN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-11-05 | James Denson Wilson Jr | Chief Revenue Officer | MIXED | +13,288 | −$24.50K |
| 2026-11-02 | Christian Terlinde | Director | A | +8,721 | — |
| 2026-08-10 | Christoph Glingener | Chief Technology Officer | A | +27,924 | — |
| 2026-08-07 | Timothy P Santo | SVP of Finance; CFO | Buy | +6,579 | +$50.00K |
| 2026-07-28 | Christoph Glingener | Chief Technology Officer | A | +9,384 | — |
| 2026-07-06 | Anne DelSanto | Director | A | +4,399 | — |
| 2026-05-22 | James Denson Wilson Jr | Chief Revenue Officer | MIXED | −19,801 | −$137.37K |
| 2026-05-11 | Christoph Glingener | Chief Technology Officer | MIXED | — | −$626.61K |
| 2026-04-03 | Thomas R Stanton | Chairman & CEO | A | +170,723 | — |
| 2026-04-03 | Timothy P Santo | SVP of Finance; CFO | A | +28,252 | — |
| 2026-04-03 | James Denson Wilson Jr | Chief Revenue Officer | A | +24,908 | — |
| 2026-03-23 | Timothy P Santo | SVP of Finance; CFO | F | −1,501 | −$17.86K |
| 2026-03-05 | Thomas R Stanton | Chairman & CEO | A | +39,735 | — |
| 2026-03-05 | Hourigan Rice Jacqueline | Director | Sell | −14,406 | −$148.24K |
| 2026-01-30 | James Denson Wilson Jr | Chief Revenue Officer | F | −1,309 | −$12.10K |
| 2026-01-28 | James Denson Wilson Jr | Chief Revenue Officer | MIXED | +2,690 | −$10.04K |
| 2026-01-28 | Thomas R Stanton | Chairman & CEO | MIXED | +15,566 | −$114.64K |
| 2026-01-27 | Thomas R Stanton | Chairman & CEO | F | −31,944 | −$307.66K |
| 2026-01-27 | James Denson Wilson Jr | Chief Revenue Officer | F | −2,225 | −$21.43K |
| 2026-01-22 | Thomas R Stanton | Chairman & CEO | F | −10,247 | −$94.68K |
| 2026-01-22 | James Denson Wilson Jr | Chief Revenue Officer | F | −765 | −$7.07K |
| 2026-01-05 | Gregory James McCray | Director | A | +13,809 | — |
| 2026-01-05 | Nikos Theodosopoulos | Director | A | +13,809 | — |
| 2026-01-05 | Hourigan Rice Jacqueline | Director | A | +13,809 | — |
| 2026-01-05 | Kathryn A Walker | Director | A | +13,809 | — |
| 2026-01-05 | H Fenwick Huss | Director | A | +13,809 | — |
| 2026-01-05 | Balan Nair | Director | A | +13,809 | — |
| 2025-12-01 | Nikos Theodosopoulos | Director | Buy | +12,859 | +$100.43K |
| 2025-12-01 | Timothy P Santo | SVP of Finance; CFO | Buy | +6,150 | +$49.32K |
| 2025-11-25 | Thomas R Stanton | Chairman & CEO | Buy | +40,928 | +$300.00K |
| 2025-11-19 | James Denson Wilson Jr | Chief Revenue Officer | F | −468 | −$3.43K |
| 2025-11-19 | Thomas R Stanton | Chairman & CEO | F | −3,355 | −$24.59K |
| 2025-07-15 | Thomas R Stanton | Chairman & CEO | F | −5,663 | −$52.10K |
| 2025-04-15 | Thomas R Stanton | Chairman & CEO | F | −5,408 | −$41.21K |
| 2025-03-20 | Timothy P Santo | SVP of Finance; CFO | A | +20,444 | — |
| 2025-01-28 | Christoph Glingener | Chief Technology Officer | A | +27,777 | — |
| 2025-01-28 | Thomas R Stanton | Chairman & CEO | MIXED | +179,376 | −$204.58K |
| 2025-01-28 | James Denson Wilson Jr | Chief Revenue Officer | MIXED | +25,206 | −$52.10K |
| 2025-01-28 | Ulrich Dopfer | Chief Financial Officer | MIXED | +26,895 | −$59.59K |
| 2025-01-22 | Thomas R Stanton | Chairman & CEO | F | −6,395 | −$65.17K |
| 2025-01-22 | James Denson Wilson Jr | Chief Revenue Officer | F | −765 | −$7.80K |
| 2025-01-15 | Thomas R Stanton | Chairman & CEO | F | −6,018 | −$60.24K |
| 2025-01-03 | H Fenwick Huss | Director | A | +14,406 | — |
| 2025-01-03 | Hourigan Rice Jacqueline | Director | MIXED | −1,943 | — |
| 2025-01-03 | Nikos Theodosopoulos | Director | A | +14,406 | — |
| 2025-01-03 | Balan Nair | Director | A | +14,406 | — |
| 2025-01-03 | Kathryn A Walker | Director | A | +14,406 | — |
| 2025-01-03 | Gregory James McCray | Director | A | +14,406 | — |
| 2024-11-19 | Thomas R Stanton | Chairman & CEO | F | −22,345 | −$173.17K |
| 2024-11-19 | James Denson Wilson Jr | Chief Revenue Officer | F | −3,134 | −$24.29K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Thomas R Stanton | Chairman & CEO | 1,126,553 | $4.86M |
| James Denson Wilson Jr | Chief Revenue Officer | 150,342 | $648.73K |
| Balan Nair | Director | 125,373 | $540.98K |
| H Fenwick Huss | Director | 107,600 | $464.29K |
| Kathryn A Walker | Director | 98,663 | $425.73K |
| Christoph Glingener | Chief Technology Officer | 83,953 | $362.26K |
| Hourigan Rice Jacqueline | Director | 76,090 | $328.33K |
| Gregory James McCray | Director | 72,892 | $314.53K |
| Nikos Theodosopoulos | Director | 65,963 | $284.63K |
| Timothy P Santo | SVP of Finance; CFO | 59,924 | $258.57K |
| Ulrich Dopfer | Chief Financial Officer | 37,591 | $162.21K |
| Christian Terlinde | Director | 8,721 | $37.63K |
| Anne DelSanto | Director | 4,399 | $18.98K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ADTN quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.