Glingener Christoph bought ADTN
May 8, 2026 · Form 4 insider transaction
Glingener Christoph bought 22,277 shares of ADTRAN Holdings, Inc. at $12.17 per share, a transaction worth $271.1K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 3 days after the transaction.
Direction
Acquired (buy-side)
Shares
22,277
Price
$12.17
Total value
$271.1K
InsiderGlingener Christoph
RoleOfficer
CompanyADTRAN Holdings, Inc. (ADTN)
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateMay 8, 2026
Filing dateMay 11, 2026
Shares owned after68,922
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
The transactions reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025.