CYCN CYCLERION THERAPEUTICS INC
FollowCOM (common)
20 managers (21 13F filers) reported a position in CYCN shares at 2026-06-30, 3,298,422 shares in all. 9 filers opened a position and 5 filers sold out during the quarter.
- Managers
- 20
- 13F filers
- 21
- New
- 9
- Added
- 3
- Reduced
- 3
- Sold out
- 5
- Shares held by filers
- 3,298,422
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q2 2026
Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| Kalehua Capital Management LLC | 1,651,350 | $5.6M | 3.22% | new | 13F-HR/ATimeline |
| FMR LLCin group FMR LLC | 649,547 | $2.2M | <0.01% | +644,807 | 13F-HRTimelineGroup |
| Balyasny Asset Management L.P.in group Balyasny Asset Management | 317,511 | $1.08M | <0.01% | new | 13F-HRTimelineGroup |
| ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC | 298,757 | $1.01M | 0.05% | new | 13F-HRTimelineGroup |
| BRAIDWELL LP | 156,890 | $532K | 0.02% | new | 13F-HRTimeline |
| CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC | 59,795 | $203K | <0.01% | +41,534 | 13F-HRTimelineGroup |
| GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC | 45,850 | $155K | <0.01% | -38,700 | 13F-HRTimelineGroup |
| VANGUARD GROUP INCgroup of 2 filers holding | 38,268 | $130K | +14,778 | Timeline
| |
| Rangeley Capital, LLC | 24,310 | $82.4K | 0.08% | new | 13F-HRTimeline |
| HRT FINANCIAL LP | 22,054 | $74K | <0.01% | new | 13F-HRTimeline |
| BlackRock, Inc.in group BlackRock, Inc. | 16,797 | $56.9K | <0.01% | 0 | 13F-HRTimelineGroup |
| DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP | 11,724 | $39.7K | <0.01% | new | 13F-HRTimelineGroup |
| UBS Group AGin group UBS Group AG | 3,135 | $10.6K | <0.01% | -256 | 13F-HRTimelineGroup |
| Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T… | 1,849 | $6.27K | <0.01% | new | 13F-HRTimelineGroup |
| GROUP ONE TRADING LLC | 192 | $651 | <0.01% | 0 | 13F-HRTimeline |
| OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC. | 130 | $440 | <0.01% | 0 | 13F-HRTimelineGroup |
| Activest Wealth Management | 100 | $339 | <0.01% | 0 | 13F-HRTimeline |
| BARCLAYS PLCin group BARCLAYS PLC | 87 | $295 | <0.01% | new | 13F-HRTimelineGroup |
| WHI TRUST Co LLC | 72 | $244 | <0.01% | 0 | 13F-HRTimeline |
| BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS | 4 | $14 | <0.01% | -1 | 13F-HRTimelineGroup |