Stock Ownership/YSS

York Space Systems Inc (YSS): Ownership & Insider Activity

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

Reported Holders
19
13F filers
Aggregate Value
$64.3M
Across holders
Last Price
$9.76
2026-08-24
Sector
—
GICS
Quarterly fund activity9 increased9 reduced6 exited
Full exits: Hudson Bay Capital Management LP, RENAISSANCE TECHNOLOGIES LLC, Davidson Kempner Capital Management LP, Woodline Partners LP, Schonfeld Strategic Advisors LLC, SHAW D E & CO INC
Institutional Holders of YSS
↗
19 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
Clearbridge Investments, LLC
CIK 0001348883
Hedge Fund1.32M$32.5M50.5%0.0%Reduced$-666KQ2 2026
ExodusPoint Capital Management, LP
CIK 0001736225
Hedge Fund571K$14.1M21.9%0.1%Reduced$-550KQ2 2026
ArrowMark Colorado Holdings LLC
CIK 0001483859
Hedge Fund269K$6.6M10.3%0.3%Reduced$-9.3MQ2 2026
TCW GROUP INC
CIK 0000850401
Hedge Fund128K$3.2M4.9%0.0%Added—Q2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund54K$1.3M2.1%0.0%Unchanged+$0Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund41K$1.0M1.6%0.0%Added—Q2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund33K$800K1.2%0.0%Added—Q2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund28K$685K1.1%0.0%Added—Q2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund27K$672K1.0%0.0%Reduced+$160KQ2 2026
FRED ALGER MANAGEMENT, LLC
CIK 0000003520
Hedge Fund27K$662K1.0%0.0%Reduced$-337KQ2 2026
Clearbridge Investments, LLCReduced
Hedge Fund
$32.5M· 50.5% of total· 0.0% port· 1.32M sh· $-666K QoQ· Q2 2026
ExodusPoint Capital Management, LPReduced
Hedge Fund
$14.1M· 21.9% of total· 0.1% port· 571K sh· $-550K QoQ· Q2 2026
ArrowMark Colorado Holdings LLCReduced
Hedge Fund
$6.6M· 10.3% of total· 0.3% port· 269K sh· $-9.3M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$3.2M· 4.9% of total· 0.0% port· 128K sh· — QoQ· Q2 2026
Walleye Capital LLCUnchanged
Hedge Fund
$1.3M· 2.1% of total· 0.0% port· 54K sh· +$0 QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$1.0M· 1.6% of total· 0.0% port· 41K sh· — QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$800K· 1.2% of total· 0.0% port· 33K sh· — QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$685K· 1.1% of total· 0.0% port· 28K sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$672K· 1.0% of total· 0.0% port· 27K sh· +$160K QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCReduced
Hedge Fund
$662K· 1.0% of total· 0.0% port· 27K sh· $-337K QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$578K· 0.9% of total· 0.0% port· 23K sh· +$269K QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$566K· 0.9% of total· 0.0% port· 23K sh· +$215K QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$425K· 0.7% of total· 0.0% port· 17K sh· $-14K QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$400K· 0.6% of total· 0.0% port· 16K sh· $-2.3M QoQ· Q2 2026
SOROS FUND MANAGEMENT LLCAdded
Family Office
$277K· 0.4% of total· 0.0% port· 11K sh· — QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$257K· 0.4% of total· 0.0% port· 10K sh· $-687K QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$228K· 0.4% of total· 0.0% port· 9K sh· — QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$121K· 0.2% of total· 0.0% port· 5K sh· $-7.4M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$739· 0.0% of total· 0.0% port· 30 sh· — QoQ· Q2 2026
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