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ADTN insider trading

ADTRAN Holdings, Inc. — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
4
Bought · 24 mo
$500k
Buys · last 90 days
1 · $50k
Most recent buy
2026-08-07

Cluster buy detected

3 insiders bought ADTN within a short window (2025-11-24→2025-11-28), $450k in total — cluster score 63/100. Members see the buyers, the score breakdown and the chart.

See the cluster

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-08-07Santo Timothy P
SVP of Finance; CFO
Bought6,579$7.60$50k
2026-05-11Glingener Christoph
Chief Technology Officer
Sold84,895$15.06$1.3M
2025-12-01Theodosopoulos Nikoscluster
Director
Bought12,859$7.81$100k
2025-12-01Santo Timothy Pcluster
SVP of Finance; CFO
Bought6,150$8.02$49k
2025-11-25STANTON THOMAS Rcluster
Chairman & CEO
Bought40,928$7.33$300k

Most active insider buyers

InsiderRoleBuysTotal bought
STANTON THOMAS RChairman & CEO1$300k
Theodosopoulos NikosDirector1$100k
Santo Timothy PSVP of Finance; CFO2$99k

See ADTN on the chart

Every insider buy and sell for ADTN plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.