Stock Ownership/CYCN

CYCLERION THERAPEUTICS INC (CYCN): Ownership & Insider Activity

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

Reported Holders
2
13F filers
Aggregate Value
$1.3M
Across holders
Last Price
$3.42
2026-09-08
Sector
Health Care
GICS
Quarterly fund activity2 increased0 reduced0 exited
Institutional Holders of CYCN
↗
2 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund318K$1.1M84.2%0.0%Added—Q2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund60K$203K15.8%0.0%Added+$141KQ2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$1.1M· 84.2% of total· 0.0% port· 318K sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$203K· 15.8% of total· 0.0% port· 60K sh· +$141K QoQ· Q2 2026
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