ADTN
ADTRAN Holdings, Inc. · Manufacturing · Market cap $587.5M
Insiders sold $87K net in the last 90 days ·1 seller, 1 buyer· latest Form 4 filed Aug 7, 2026
Insider Buying
$500K
reported purchases (SEC code P)
Insider Selling
$2.5M
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Aug 10, 2026
Santo Timothy P
ADTRAN Holdings, Inc. (ADTN) has 30 SEC Form 4 filings (40 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Aug 10, 2026.
Inside the rolling window, 6 insiders at ADTRAN Holdings, Inc. reported 4 open-market purchases totaling $500K and 4 open-market sales totaling $2.5M. Insiders have net sold $2.5M over the trailing 6 months. The most recent open-market filing is a purchase of 6,579 shares by SVP of Finance; CFO Santo Timothy P, dated Aug 6, 2026, worth $50K.
- Industry:Communication Equipment
- CEO:Thomas R. Stanton
- Employees:3,338
- HQ:Huntsville, AL, US
- IPO:1994-08-11
| Source | |||||||
|---|---|---|---|---|---|---|---|
Santo Timothy PFirst in 8 months | SVP of Finance; CFO | Purchase | 6,579 | $50K | Aug 7 | -4.6% | SEC ↗ |
Wilson James Denson JrFirst filing | Chief Revenue Officer | Sale | 9,332 | $137K | May 22 | -54.0% | SEC ↗ |
Glingener ChristophFirst filing | Chief Technology Officer | Sale | 126,115 | $1.9M | May 11 | -54.0% | SEC ↗ |
Glingener ChristophFirst filing | Chief Technology Officer | Sale | 22,277 | $334K | May 11 | -54.0% | SEC ↗ |
Jacqueline Hourigan RiceFirst filing | Director | Sale | 14,406 | $148K | Mar 5 | -28.3% | SEC ↗ |
Theodosopoulos NikosFirst filing | Director | Purchase | 12,859 | $100K | Dec 1 | -8.8% | SEC ↗ |
Santo Timothy PFirst filing | SVP of Finance; CFO | Purchase | 6,150 | $49K | Dec 1 | -8.8% | SEC ↗ |
STANTON THOMAS RFirst filing | Chairman & CEO | Purchase | 40,928 | $300K | Nov 25 | -6.4% | SEC ↗ |
Congress trading ADTN 1 all-time
- RRep. Mo BrooksOther$1,001 - $15,0002020-01-02
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does ADTN have?
ADTRAN Holdings, Inc. (ADTN) has 30 SEC Form 4 filings (40 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Aug 10, 2026.
When was the most recent SEC Form 4 filing for ADTN?
The most recent Form 4 filing for ADTN on Tracefour is dated Aug 10, 2026.
What is the net insider flow at ADTN over the last 6 months?
Over the trailing 180 days, insiders at ADTN have net sold $2.5M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ADTN in the current window?
Inside the rolling window, insiders at ADTN bought $500K and sold $2.5M based on SEC Form 4 filings.
Can I get alerts for ADTN insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at ADTRAN Holdings, Inc. (ADTN). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
ADTRAN Holdings, Inc. is in the Manufacturing sector.