Stock Ownership/ADTN

ADTRAN HOLDINGS INC (ADTN): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in ADTN · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
20
13F filers
Aggregate Value
$225.8M
Across holders
Last Price
$7.71
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity12 increased8 reduced1 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC
Institutional Holders of ADTN
↗
20 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund2.90M$40.3M17.8%0.0%Added+$24.6MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund2.72M$37.8M16.8%0.0%Added+$11.5MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund1.77M$24.7M10.9%0.0%Added+$21.8MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund1.40M$19.4M8.6%0.0%Added+$15.7MQ2 2026
First Eagle Investment Management, LLC
CIK 0001325447
Institutional Manager1.25M$17.4M7.7%0.0%Reduced$-1.7MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund1.09M$15.2M6.7%0.0%Reduced+$14.6MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund1.04M$14.4M6.4%0.0%Added+$13.6MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund787K$10.9M4.8%0.0%Added+$4.6MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund765K$10.6M4.7%0.0%Added+$2.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund671K$9.3M4.1%0.0%Reduced+$9.3MQ2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$40.3M· 17.8% of total· 0.0% port· 2.90M sh· +$24.6M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$37.8M· 16.8% of total· 0.0% port· 2.72M sh· +$11.5M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$24.7M· 10.9% of total· 0.0% port· 1.77M sh· +$21.8M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$19.4M· 8.6% of total· 0.0% port· 1.40M sh· +$15.7M QoQ· Q2 2026
First Eagle Investment Management, LLCReduced
Institutional Manager
$17.4M· 7.7% of total· 0.0% port· 1.25M sh· $-1.7M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$15.2M· 6.7% of total· 0.0% port· 1.09M sh· +$14.6M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$14.4M· 6.4% of total· 0.0% port· 1.04M sh· +$13.6M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$10.9M· 4.8% of total· 0.0% port· 787K sh· +$4.6M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$10.6M· 4.7% of total· 0.0% port· 765K sh· +$2.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$9.3M· 4.1% of total· 0.0% port· 671K sh· +$9.3M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$8.6M· 3.8% of total· 0.0% port· 617K sh· $-3.8M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALReduced
Hedge Fund
$7.5M· 3.3% of total· 0.0% port· 541K sh· $-1.6M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$3.8M· 1.7% of total· 0.0% port· 275K sh· — QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$1.7M· 0.8% of total· 0.0% port· 125K sh· $-104K QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$1.4M· 0.6% of total· 0.0% port· 103K sh· +$675K QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$934K· 0.4% of total· 0.0% port· 67K sh· +$593K QoQ· Q2 2026
Schonfeld Strategic Advisors LLCReduced
Hedge Fund
$581K· 0.3% of total· 0.0% port· 42K sh· $-338K QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$412K· 0.2% of total· 0.0% port· 30K sh· +$127K QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$352K· 0.2% of total· 0.0% port· 25K sh· — QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$351K· 0.2% of total· 0.0% port· 25K sh· — QoQ· Q2 2026
1–10 of 20
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