Companies / ADTRAN Holdings, Inc.

ADTRAN Holdings, Inc.

Nasdaq: ADTNCIK 926282HUNTSVILLE, ALadtran.com ↗
Insider flow · last 90 daysNet sells $137.4K

Financials · FY2025

Revenue$1.08B
Net income$-45.66M
Total debt$25.60M
Cash$79.24M
Diluted EPS$-0.52
Shares outstanding81.5M

Ownership

81.5M shares outstanding · as of Aug 3, 2026
2.2%Insiders
Ownership
Insiders2.17%1,768,756
10%+ / strategic4.92%4,005,806
Institutions90.22%73,514,328
Public float2.69%2,192,517

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 9

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Insider% of sharesShares
Stanton Thomas RCEOChairman & CEO · Director
1.38%1,126,554
Wilson James Denson JrChief Revenue Officer
0.16%132,808
Nair BalanDirector
0.15%125,373
Huss H FenwickDirector
0.13%107,600
Walker Kathryn ADirector
0.12%98,663
McCray Gregory JamesDirector
0.09%72,893
Theodosopoulos NikosDirector
0.08%65,963
Santo Timothy PSVP of Finance; CFO
0.03%25,093
Jacqueline Hourigan RiceDirector
0.02%13,809

Institutional holders 223

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HolderValue% of shares
BlackRock, Inc.$108.92M9.62%
Vanguard Group Inc$71.16M10.05%
State Street Corporation$42.85M3.78%
DNB Asset Management AS$27.14M3.83%
Divisar Capital Management LLC$25.95M3.67%
Millennium Management LLC$23.86M2.33%
Geode Capital Management, LLC$22.89M2.23%
Royce & Associates LP$22.57M3.19%
William Blair Investment Management, LLC$21.54M3.04%
First Eagle Investment Management, LLC$17.22M1.68%

Activity

Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).
DateActorActionSecurityValueShares ΔPosition afterImpact
Q1 2026
as of
Shannon River Fund Management LLC
13F manager
NewCommon stock$15.35M+1.2M
1,219,976
1.50% of shares
medium
Q2 2026
as of
State Street Corporation
13F manager
AddCommon stock$15.25M+1.1M
+55.23%
3,082,794
3.78% of shares
medium
Q1 2026
as of
Boston Partners
13F manager
NewCommon stock$14.91M+1.2M
1,181,314
1.45% of shares
medium
Q1 2026
as of
Two Sigma Investments, LP
13F manager
AddCommon stock$13.25M+1.1M
+1492.91%
1,123,524
1.38% of shares
medium
Q1 2026
as of
Marshall Wace, LLP
13F manager
NewCommon stock$11.22M+892K
891,520
1.09% of shares
medium
Q1 2026
as of
Millennium Management LLC
13F manager
TrimCommon stock$-10.04M-798K
-29.63%
1,896,411
2.33% of shares
medium
Q1 2026
as of
AQR Capital Management, LLC
13F manager
AddCommon stock$7.64M+607K
+256.22%
843,924
1.04% of shares
medium
Q1 2026
as of
Hillsdale Investment Management Inc.
13F manager
TrimCommon stock$-5.93M-471K
-95.37%
22,900
0.03% of shares
medium

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
EGORA Ventures AGPassive13G/A—4,005,806—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ADTN——00486H105—