Stock Ownership/AEHR

AEHR TEST SYS (AEHR): Ownership & Insider Activity

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

Reported Holders
15
13F filers
Aggregate Value
$372.9M
Across holders
Last Price
$96.43
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity11 increased4 reduced5 exited
Full exits: Verition Fund Management LLC, Bridgewater Associates, LP, Alphadyne Asset Management LP, BALYASNY ASSET MANAGEMENT LLC, Squarepoint Ops LLC
Institutional Holders of AEHR
↗
15 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
SHAW D E & CO INC
CIK 0001009207
Hedge Fund1.18M$113.1M30.3%0.1%Added+$105.2MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund1.16M$111.9M30.0%0.1%Added+$91.3MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund401K$38.5M10.3%0.0%Added+$1.1MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund383K$36.8M9.9%0.0%Added+$33.8MQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund205K$19.6M5.3%0.0%Added+$15.0MQ2 2026
BAILLIE GIFFORD & CO
CIK 0001088875
Institutional Manager204K$19.6M5.3%0.0%Reduced$-60.3MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund135K$12.9M3.5%0.0%Added—Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund109K$10.5M2.8%0.0%Added+$1.3MQ2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund44K$4.2M1.1%0.0%Added—Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund36K$3.5M0.9%0.0%Added—Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$113.1M· 30.3% of total· 0.1% port· 1.18M sh· +$105.2M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$111.9M· 30.0% of total· 0.1% port· 1.16M sh· +$91.3M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$38.5M· 10.3% of total· 0.0% port· 401K sh· +$1.1M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$36.8M· 9.9% of total· 0.0% port· 383K sh· +$33.8M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$19.6M· 5.3% of total· 0.0% port· 205K sh· +$15.0M QoQ· Q2 2026
BAILLIE GIFFORD & COReduced
Institutional Manager
$19.6M· 5.3% of total· 0.0% port· 204K sh· $-60.3M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$12.9M· 3.5% of total· 0.0% port· 135K sh· — QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$10.5M· 2.8% of total· 0.0% port· 109K sh· +$1.3M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$4.2M· 1.1% of total· 0.0% port· 44K sh· — QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$3.5M· 0.9% of total· 0.0% port· 36K sh· — QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$930K· 0.2% of total· 0.0% port· 10K sh· +$928K QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$874K· 0.2% of total· 0.0% port· 9K sh· $-1.1M QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$266K· 0.1% of total· 0.0% port· 3K sh· $-1.9M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$229K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$18K· 0.0% of total· 0.0% port· 191 sh· $-4.8M QoQ· Q2 2026
1–10 of 15
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