GLINGENER CHRISTOPH

PrivateCIK: 1943622
Location

HUNTSVILLE, AL

Senior insider sale

CEO of ADVA at ADTRAN HOLDINGS, INC. — senior position signals high conviction

$2.33M

148.39K shares

What this filing means

GLINGENER CHRISTOPH plans to sell 148.39K shares of ADTRAN HOLDINGS, INC. valued at approximately $2.33M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderGLINGENER CHRISTOPHCIK 1943622
IssuerADTRAN HOLDINGS, INC.CIK 926282
Officer· CEO of ADVA
Since Sep 2022
148.39K
Shares to sell
$2.33M
Approx. market value
148.39K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Sort

Exercise of Stock Options

Cash

5/7/2026
148.39K
Total acquired148.39K
Planned & Completed Dispositions1
Sort
NASDAQPlanned

Units to sell

148.39K

Market value

$2.33M

5/7/2026
Total

Units

148.39K

Value

$2.33M

GLINGENER CHRISTOPH — Planned Insider Sale (Form 144) | Finecho