Updated Jul 16, 2026
STANTON THOMAS R is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $300K.
Thomas R. Stanton is the Chairman and CEO of Adtran Holdings, Inc., a company specializing in networking and communications platforms. He has been instrumental in guiding the company through various phases of growth in the broadband access market.
| Role | Insider |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-03 | ADTN | ADTRAN Holdings, Inc. | A — Grant or award | 170.7K | $0.00 | |
| 2026-03-05 | ADTN | ADTRAN Holdings, Inc. | A — Grant or award | 39.7K | $0.00 | |
| 2026-01-28 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 12.4K | $9.24 | $115K |
| 2026-01-28 | ADTN | ADTRAN Holdings, Inc. | A — Grant or award | 28.0K | $0.00 | |
| 2026-01-27 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 14.4K | $9.73 | $140K |
| 2026-01-27 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 17.5K | $9.55 | $167K |
| 2026-01-22 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 10.2K | $9.24 | $95K |
| 2025-11-25 | ADTN | ADTRAN Holdings, Inc. | P — Open-market purchase | 40.9K | $7.33 | $300K |
| 2025-11-19 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 3.4K | $7.33 | $25K |
| 2025-07-13 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 5.7K | $9.20 | $52K |
| 2025-04-13 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 5.4K | $7.62 | $41K |
| 2024-11-19 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 16.8K | $7.75 | $130K |
| 2024-11-19 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 5.6K | $7.75 | $43K |
| 2024-10-15 | ADTN | ADTRAN Holdings, Inc. | F — Tax withholding / forfeiture | 3.7K | $5.91 | $22K |
Thomas R. Stanton is the Chairman and CEO of Adtran Holdings, Inc., a company specializing in networking and communications platforms. He has been instrumental in guiding the company through various phases of growth in the broadband access market.…
Recorded transactions: 1 open-market purchases ($300K) and 0 open-market sales () across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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