ADTRAN HOLDINGS INC (ADTN) is held by 131 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q1 2026.

Are institutions buying or selling ADTN?

In Q1 2026, 79 institutions opened or increased positions in ADTRAN HOLDINGS INC while 53 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on ADTN?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for ADTRAN HOLDINGS INC.

How many hedge funds hold ADTN?

131 institutional investors report holding ADTRAN HOLDINGS INC (ADTN) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into ADTN?

As of Q1 2026, tracked institutions in ADTRAN HOLDINGS INC show 79 buyers versus 53 sellers — net inflows.

ADTRAN HOLDINGS INC

ADTN·00486H105·US·Common Stock·Technology - Communication Equipment-13D/G

131

Holders

(10 Elite)

$792.1M

Total Value

60% (132)

Consensus

79 buying - 53 selling

13F: Mar 31, 2026Insider & Congress: Updated regularly

Smart Money Verdict

View all

Held by 131 funds

10 elite

Who's Trading

InsiderGCGlingener ChristophExercise 22K shMay 8, 2026

InsiderGCGlingener ChristophSell $334KMay 8, 2026

InsiderGCGlingener ChristophExercise 85K shMay 7, 2026

InsiderGCGlingener ChristophExercise 41K shMay 7, 2026

InsiderGCGlingener ChristophSell $607KMay 7, 2026

InsiderGCGlingener ChristophSell $1.3MMay 7, 2026

ActivistVPVanguard Portfolio Management6.0%Apr 28, 2026

Activist

The Vanguard Group0.0%Mar 26, 2026

ActivistEVEGORA Ventures AG5.0%Mar 18, 2026

InsiderJRJacqueline Hourigan RiceSell $148KMar 4, 2026

View all insider trades View all activist filings

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	7.8M(-3.5%)	$98.6M	0.0%	+59.81%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	4.8M	$60M	0.0%	+36.03%	41
VAVANGUARD CAPITAL MANAGEMENT LLC	New	3.4M	$43.1M	0.0%	+36.03%	40
ROYCE & ASSOCIATES LP	Increased	3.1M(+20.4%)	$39.3M	0.4%	+49.33%	41
DnB Asset Management AS	Unchanged	3.1M	$39.3M	0.1%	+6.86%	0
STATE STREET CORP	Increased	2.4M(+18.4%)	$29.6M	0.0%	+70.52%	34
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	Decreased	2M(-19.7%)	$25M	0.1%	+64.20%	0
MILLENNIUM MANAGEMENT LLC	Decreased	1.9M(-29.6%)	$23.9M	0.0%	+53.69%	0
MORGAN STANLEY	Increased	1.8M(+36.4%)	$23.1M	0.0%	+77.53%	37
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.8M(+3.0%)	$22.9M	0.0%	-15.49%	29
JPMORGAN CHASE & CO	Increased	1.5M(+249.0%)	$18.5M	0.0%	+40.82%	46
First Eagle Investment Management, LLC	Increased	1.4M(+10.8%)	$17.2M	0.0%	+63.67%	31
DIMENSIONAL FUND ADVISORS LP	Increased	1.3M(+50.5%)	$16.8M	0.0%	+56.92%	39
DED. E. Shaw & Co., Inc.	Increased	1.2M(+1.7%)	$15.3M	0.0%	+49.86%	29
Boston Partners	New	1.2M	$14.9M	0.0%	+36.03%	39
TWO SIGMA INVESTMENTS, LP	Increased	1.1M(+1492.9%)	$14.1M	0.0%	+38.53%	45
SEI INVESTMENTS CO	Increased	1.1M(+162.0%)	$13.9M	0.0%	+41.67%	45
Invesco Ltd.	Increased	990,994(+301.5%)	$12.5M	0.0%	+37.36%	45
GOLDMAN SACHS GROUP INC	Increased	970,707(+86.2%)	$12.2M	0.0%	+46.05%	43
BARCLAYS PLC	Decreased	927,775(-17.6%)	$11.7M	0.0%	+49.97%	0