AXT INC (AXTI): Ownership & Insider Activity

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

Reported Holders
20
13F filers
Aggregate Value
$449.2M
Across holders
Last Price
$65.40
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity16 increased3 reduced6 exited
Full exits: Point72 Asset Management, L.P., Hudson Bay Capital Management LP, Schonfeld Strategic Advisors LLC, Qube Research & Technologies Ltd, Brevan Howard Capital Management LP, Rokos Capital Management LLP
Institutional Holders of AXTI
20 holders
ManagerTypeSharesMarket Value% of Total% of PortfolioActionQoQ ChangeQuarter
SHAW D E & CO INC
CIK 0001009207
Hedge Fund2.25M$162.2M36.1%0.1%Added+$55.6MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund1.48M$106.8M23.8%0.0%Added+$92.6MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund854K$61.6M13.7%0.0%Added+$8.3MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund398K$28.7M6.4%0.0%Added+$24.0MQ2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
Hedge Fund334K$24.1M5.4%0.1%AddedQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund313K$22.6M5.0%0.0%Added+$21.0MQ2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund114K$8.2M1.8%0.0%AddedQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund112K$8.0M1.8%0.0%Reduced$-636KQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund100K$7.2M1.6%0.0%Reduced+$7.0MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund84K$6.1M1.4%0.0%AddedQ2 2026
SHAW D E & CO INCAdded
Hedge Fund
$162.2M· 36.1% of total· 0.1% port· 2.25M sh· +$55.6M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$106.8M· 23.8% of total· 0.0% port· 1.48M sh· +$92.6M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$61.6M· 13.7% of total· 0.0% port· 854K sh· +$8.3M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$28.7M· 6.4% of total· 0.0% port· 398K sh· +$24.0M QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCAdded
Hedge Fund
$24.1M· 5.4% of total· 0.1% port· 334K sh· QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$22.6M· 5.0% of total· 0.0% port· 313K sh· +$21.0M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$8.2M· 1.8% of total· 0.0% port· 114K sh· QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$8.0M· 1.8% of total· 0.0% port· 112K sh· $-636K QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$7.2M· 1.6% of total· 0.0% port· 100K sh· +$7.0M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$6.1M· 1.4% of total· 0.0% port· 84K sh· QoQ· Q2 2026
AXIOM INVESTORS LLC /DEAdded
Hedge Fund
$4.8M· 1.1% of total· 0.0% port· 66K sh· QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$2.7M· 0.6% of total· 0.0% port· 38K sh· $-282K QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$2.3M· 0.5% of total· 0.0% port· 32K sh· QoQ· Q2 2026
Verition Fund Management LLCReduced
Hedge Fund
$1.9M· 0.4% of total· 0.0% port· 26K sh· $-780K QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$538K· 0.1% of total· 0.0% port· 7K sh· QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$506K· 0.1% of total· 0.0% port· 7K sh· QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$432K· 0.1% of total· 0.0% port· 6K sh· QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$310K· 0.1% of total· 0.0% port· 4K sh· $-973K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$283K· 0.1% of total· 0.0% port· 4K sh· QoQ· Q2 2026
Pinpoint Asset Management LtdUnchanged
Hedge Fund
$1· 0.0% of total· 0.0% port· 1 sh· +$0 QoQ· Q1 2025
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