ADTRAN Holdings, Inc. (ADTN)
$7.72-$0.07 (-0.90%) Today
Nikos TheodosopoulosAdtran Holdings Inc is a provider of networking and communications platforms, software, and services focused on the broadband access market. It operates under two reportable segments: Network Solutions segment, which includes hardware and software products that enable a digital future that supports the company's Subscriber, Access & Aggregation, and Optical Networking Solutions; and Services & Support segment, which includes network design, implementation, maintenance and cloud-hosted services supporting the company's Subscriber, Access & Aggregation, and Optical Networking Solutions. It generates the majority of its revenue from the Network Solutions segment.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 6,579 | $50K |
| Grant or award | 3 | 41,707 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
35 Form 4 filings on record, the earliest from Oct 15, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Christoph Glingener - Officer | Grant or award | Common Stock | 27,924 | $0.00 | - | |
| Timothy P. Santo - Officer | Open-market purchase | Common Stock | 6,579 | $7.60 | $50K | |
| Christoph Glingener - Officer | Grant or award | Common Stock | 9,384 | $0.00 | - | |
 Anne Delsanto | Grant or award | Common Stock | 4,399 | $0.00 | - | |
| James Denson Wilson Jr. - Officer | Open-market sale | Common Stock | 9,332 | $14.72 | $137K | |
| James Denson Wilson Jr. - Officer | Gift | Common Stock | 10,469 | $0.00 | - | |
| Christoph Glingener - Officer | Option exercise | Common Stock | 41,220 | $7.01 | $289K | |
| Christoph Glingener - Officer | Open-market sale | Common Stock | 41,220 | $14.73 | $607K | |
| Christoph Glingener - Officer | Option exercise | Common Stock | 84,895 | $12.17 | $1.03M | |
| Christoph Glingener - Officer | Open-market sale | Common Stock | 84,895 | $15.06 | $1.28M | |
| Christoph Glingener - Officer | Option exercise | Common Stock | 22,277 | $12.17 | $271K | |
| Christoph Glingener - Officer | Open-market sale | Common Stock | 22,277 | $15.00 | $334K | |
| Christoph Glingener - Officer | Option exercise | Stock Option | 41,220 | $0.00 | - | |
| Christoph Glingener - Officer | Option exercise | Stock Options | 84,895 | $0.00 | - | |
| Christoph Glingener - Officer | Option exercise | Stock Option | 22,277 | $0.00 | - | |
| James Denson Wilson Jr. - Officer | Grant or award | Common Stock | 24,908 | $0.00 | - | |
| Timothy P. Santo - Officer | Grant or award | Common Stock | 28,252 | $0.00 | - | |
| Thomas R. Stanton - Officer | Grant or award | Common Stock | 170,723 | $0.00 | - | |
| Timothy P. Santo - Officer | Tax withholding / forfeiture | Common Stock | 1,501 | $11.90 | $18K | |
| Hourigan Rice Jacqueline | Open-market sale | Common Stock | 14,406 | $10.29 | $148K | |
| Thomas R. Stanton - Officer | Grant or award | Common Stock | 39,735 | $0.00 | - | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 1,309 | $9.24 | $12K | |
| James Denson Wilson Jr. - Officer | Grant or award | Common Stock | 3,777 | $0.00 | - | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 1,087 | $9.24 | $10K | |
| Thomas R. Stanton - Officer | Grant or award | Common Stock | 27,973 | $0.00 | - | |
| Thomas R. Stanton - Officer | Tax withholding / forfeiture | Common Stock | 12,407 | $9.24 | $115K | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 1,227 | $9.55 | $12K | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 998 | $9.73 | $10K | |
| Thomas R. Stanton - Officer | Tax withholding / forfeiture | Common Stock | 17,535 | $9.55 | $167K | |
| Thomas R. Stanton - Officer | Tax withholding / forfeiture | Common Stock | 14,409 | $9.73 | $140K | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 765 | $9.24 | $7K | |
| Thomas R. Stanton - Officer | Tax withholding / forfeiture | Common Stock | 10,247 | $9.24 | $95K | |
 Kathryn A. Walker | Grant or award | Common Stock | 13,809 | $0.00 | - | |
| Nikos Theodosopoulos | Grant or award | Common Stock | 13,809 | $0.00 | - | |
 Gregory James McCray | Grant or award | Common Stock | 13,809 | $0.00 | - | |
 Balan Nair | Grant or award | Common Stock | 13,809 | $0.00 | - | |
 H. Fenwick Huss | Grant or award | Common Stock | 13,809 | $0.00 | - | |
| Hourigan Rice Jacqueline | Grant or award | Common Stock | 13,809 | $0.00 | - | |
| Nikos Theodosopoulos | Open-market purchase | Common Stock | 12,859 | $7.81 | $100K | |
| Timothy P. Santo - Officer | Open-market purchase | Common Stock | 6,150 | $8.02 | $49K | |
| Thomas R. Stanton - Officer | Open-market purchase | Common Stock | 40,928 | $7.33 | $300K | |
| James Denson Wilson Jr. - Officer | Tax withholding / forfeiture | Common Stock | 468 | $7.33 | $3K | |
| Thomas R. Stanton - Officer | Tax withholding / forfeiture | Common Stock | 3,355 | $7.33 | $25K |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
ADTRAN Holdings, Inc. (ADTN) had 4 insider filings in the last 90 days, with the most recent on 2026-08-10. The full record for ADTN runs to 35 Form 4 filings, the earliest from 2024-10-15. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
1 insider purchase of ADTN was filed in the last 90 days, totaling $50K.
No insider sales of ADTN were filed in the last 90 days. 5 sales are on record for this company.
This page tracks ADTN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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