11 insiders reported 43 Form 4 transactions for ADTRAN Holdings, Inc. (ADTN) over the past 18 months (most recent 2026-08-10). Recent activity: Glingener Christoph (Chief Technology Officer) Buy 27,924 shares, Santo Timothy P (SVP of Finance; CFO) Buy 6,579 shares, Glingener Christoph (Chief Technology Officer) Buy 9,384 shares, DelSanto Anne (Director) Buy 4,399 shares, Wilson James Denson Jr (Chief Revenue Officer) Sell 9,332 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-10 | Glingener Christoph | Chief Technology Officer | Buy | 27,924 | $0 |
| 2026-08-07 | Santo Timothy P | SVP of Finance; CFO | Buy | 6,579 | $50,000 |
| 2026-07-28 | Glingener Christoph | Chief Technology Officer | Buy | 9,384 | $0 |
| 2026-07-06 | DelSanto Anne | Director | Buy | 4,399 | $0 |
| 2026-05-22 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 9,332 | $137,367 |
| 2026-05-22 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 10,469 | $0 |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Buy | 41,220 | $288,952 |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Sell | 41,220 | $607,171 |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Buy | 84,895 | $1.0M |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Sell | 84,895 | $1.3M |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Buy | 22,277 | $271,111 |
| 2026-05-11 | Glingener Christoph | Chief Technology Officer | Sell | 22,277 | $334,155 |
| 2026-04-03 | STANTON THOMAS R | Chairman & CEO | Buy | 170,723 | $0 |
| 2026-04-03 | Wilson James Denson Jr | Chief Revenue Officer | Buy | 24,908 | $0 |
| 2026-04-03 | Santo Timothy P | SVP of Finance; CFO | Buy | 28,252 | $0 |
| 2026-03-23 | Santo Timothy P | SVP of Finance; CFO | Sell | 1,501 | $17,862 |
| 2026-03-05 | Jacqueline Hourigan Rice | Director | Sell | 14,406 | $148,238 |
| 2026-03-05 | STANTON THOMAS R | Chairman & CEO | Buy | 39,735 | $0 |
| 2026-01-30 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 1,309 | $12,095 |
| 2026-01-28 | STANTON THOMAS R | Chairman & CEO | Buy | 27,973 | $0 |
| 2026-01-28 | STANTON THOMAS R | Chairman & CEO | Sell | 12,407 | $114,641 |
| 2026-01-28 | Wilson James Denson Jr | Chief Revenue Officer | Buy | 3,777 | $0 |
| 2026-01-28 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 1,087 | $10,044 |
| 2026-01-27 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 1,227 | $11,718 |
| 2026-01-27 | Wilson James Denson Jr | Chief Revenue Officer | Sell | 998 | $9,711 |
Source: SEC Form 4 filings · as of 2026-08-10