CYCLERION THERAPEUTICS INC

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CYCN·23255M204·US·Common Stock·Healthcare - Biotechnology-Activist

CYCN (CYCLERION THERAPEUTICS INC) is held by 13 institutional investors as of Q1 2026. Largest holders: GEODE CAPITAL MANAGEMENT, LLC ($129,800), CITADEL ADVISORS LLC ($28,031), BlackRock, Inc. ($26,035). Net institutional sentiment: Mixed.

13

Holders

Avg rating(2 Elite)

$233,253

Total Value

56% (16)

Fund Consensus

5 buying - 4 selling

Smart Money Verdict

View all

Institutional (13F)

Insider (Form 4)

Activist (13D/13G)

Congressional (STOCK Act)

Holder Quality

★★★★★

Elite

★★★★

Strong

★★★

Solid

★★

Below

★

Weak

Held by 13 funds

2 elite

Who's Trading

ActivistFMR LLC15.0%May 7, 2026

ActivistJWJ. Wood Capital Advisors LLC5.4%Oct 17, 2025

ActivistTYTyndall Capital Partners, L.P.4.8%Aug 14, 2025

ActivistPMPeter M. Hecht27.9%Mar 28, 2025

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View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Positions (13)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
GEODE CAPITAL MANAGEMENT, LLC	Increased	84,550(+95.3%)	$129,800	0.0%	-89.70%	24
CITADEL ADVISORS LLC	New	18,261	$28,031	0.0%	+184.44%	30
BlackRock, Inc.	Unchanged	16,797	$26,035	0.0%	+11.30%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	New	16,137	$24,770	0.0%	+184.44%	29
VFVANGUARD FIDUCIARY TRUST CO	New	7,353	$11,287	0.0%	+184.44%	27
FMR LLC	Unchanged	4,740	$7,276	0.0%	+12.51%	0
UBS Group AG	Increased	3,391(+801.9%)	$5,256	0.0%	+182.19%	17
GROUP ONE TRADING LLC	Unchanged	192	$295	0.0%	-93.69%	0
OSAIC HOLDINGS, INC.	Unchanged	130	$201	0.0%	+11.30%	0
MAI Capital Management	Unchanged	100	$155	0.0%	+11.30%	0
CITIGROUP INC	Decreased	89(-98.9%)	$137	0.0%	+225.42%	0
BNP PARIBAS FINANCIAL MARKETS	Unchanged	5	$8	0.0%	+11.30%	0
MORGAN STANLEY	Unchanged	1	$2	0.0%	+66.96%	0
TWO SIGMA INVESTMENTS, LP	Exited	0(-100.0%)	$52,775	0.0%	-12.96%	0
BANK OF AMERICA CORP /DE/	Exited	0(-100.0%)	$136	0.0%	-17.05%	0
XTX Topco Ltd	Exited	0(-100.0%)	$12,734	0.0%	+14.41%	0

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer