CYCLERION THERAPEUTICS INC (CYCN) Institutional Shareholders
CYCLERION THERAPEUTICS INC (CYCN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $11.11M in CYCN holdings during the latest filing period.
Kalehua Capital Management Llc is currently the largest disclosed institutional shareholder of CYCN tracked by InsiderSet, reporting ownership valued at approximately $5.60M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $6.42M, representing an estimated gain of +14.75% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 99% of the total disclosed CYCN value among the investors covered in this analysis. Major shareholders include Kalehua Capital Management Llc, Fmr Llc, Balyasny Asset Management L.P., and several other long-term asset managers with concentrated positions in CYCLERION THERAPEUTICS INC (CYCN).
This page ranks the largest institutional CYCN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
21
Total Reported Value
$11.11M
Largest Holder
Kalehua Capital Management Llc
Largest Position
$5.60M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
32
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Kalehua Capital Management Llc | 4.01% | 1,651,350 | $5,598,077 | $6,423,752 | +$825,675 | +14.75% | |
| Fmr Llc | 0.00% | 649,547 | $2,201,963 | $2,526,738 | +$324,775 | +14.75% | |
| Balyasny Asset Management L.P. | 0.00% | 317,511 | $1,076,362 | $1,235,118 | +$158,756 | +14.75% | |
| Adar1 Capital Management, Llc | 0.05% | 298,757 | $1,012,786 | $1,162,165 | +$149,379 | +14.75% | |
| Braidwell Lp | 0.02% | 156,890 | $531,857 | $610,302 | +$78,445 | +14.75% | |
| Citadel Advisors Llc | 0.00% | 59,795 | $202,705 | $232,603 | +$29,898 | +14.75% | |
| Geode Capital Management, Llc | 0.00% | 45,850 | $155,471 | $178,357 | +$22,886 | +14.72% | |
| Vanguard Capital Management Llc | 0.00% | 30,915 | $104,802 | $120,259 | +$15,457 | +14.75% | |
| Rangeley Capital, Llc | 0.08% | 24,310 | $82,411 | $94,566 | +$12,155 | +14.75% | |
| Blackrock, Inc. | 0.00% | 16,797 | $56,942 | $65,340 | +$8,398 | +14.75% | |
| Dimensional Fund Advisors Lp | 0.00% | 11,724 | $39,745 | $45,606 | +$5,861 | +14.75% | |
| Vanguard Fiduciary Trust Co | 0.00% | 7,353 | $24,927 | $28,603 | +$3,676 | +14.75% | |
| Ubs Group Ag | 0.00% | 3,135 | $10,627 | $12,195 | +$1,568 | +14.76% | |
| Tower Research Capital Llc (Trc) | 0.00% | 1,849 | $6,268 | $7,193 | +$925 | +14.75% | |
| Group One Trading Llc | 0.00% | 192 | $651 | $747 | +$96 | +14.73% | |
| Osaic Holdings, Inc. | 0.00% | 130 | $440 | $506 | +$66 | +14.93% | |
| Activest Wealth Management | 0.00% | 100 | $339 | $389 | +$50 | +14.75% | |
| Barclays Plc | 0.00% | 87 | $295 | $338 | +$43 | +14.72% | |
| Whi Trust Co Llc | 0.00% | 72 | $244 | $280 | +$36 | +14.79% | |
| Hrt Financial Lp | 0.00% | 22,054 | $74 | $85,790 | +$85,716 | +115832.51% | |
| Bnp Paribas Financial Markets | 0.00% | 4 | $14 | $16 | +$2 | +11.14% |
Frequently asked questions about CYCN
Who owns the most CYCN stock?
The largest holders of CYCN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CYCLERION THERAPEUTICS INC (CYCN).
Is CYCN widely held by superinvestors?
Many widely followed stocks like CYCN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CYCN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.