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Insider selling
Christoph Glingener sold $2.2M of ADTRAN Holdings, Inc. (ADTN) stock
Christoph Glingener, Chief Technology Officer of ADTRAN Holdings, Inc. (ADTN), sold 148,392 shares of ADTN stock worth $2.2M, per an SEC Form 4 filed May 11, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on May 7, 2026, 4 days before it was made public.
ADTN has moved -50.4% since the trade date, from $14.55 to $7.21 (Sep 21, 2026 close).
- Traded
- May 7, 2026
- Disclosed
- May 11, 2026
- Filing delay
- 4 days
- Price since
- -50.4%
- Role
- Chief Technology Officer
- Source
- SEC Form 4
More ADTN insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.