Cyclerion Therapeutics Inc.
13F holders, Q4 2024 (December 31)19holders +4
5new positions
2sold out
1famous investor
$3.22avg. 13F price*
At the end of Q4 2024, 19 institutions reported holding Cyclerion Therapeutics Inc. in their 13F filings, up 4 from Q3 2024. 5 opened new positions and 2 sold out. The largest holders were Tyndall Capital Partners L P ($531K), Siren, L.L.C. ($374K) and Geode Capital Management, LLC ($102K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Cyclerion Therapeutics Inc.
- CUSIP
- 23255M204
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $35K |
| Exits | 2 | $1.4M |
All 13F filers, Q3 2024 → Q4 2024: 21,751 shares bought and 682,328 shares sold, net −660,577 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 19 holders
| Tyndall Capital Partners L P | 100.00% | No change | 164,777 | $531K |
| Siren, L.L.C. | 0.02% | No change | 116,155 | $374K |
| Geode Capital Management, LLC | 0.00% | Reduce -6.2% | 31,820 | $102K |
| Vanguard Group Inc. | 0.00% | No change | 23,490 | $76K |
| BlackRock, Inc. | 0.00% | No change | 16,797 | $54K |
| Renaissance Technologies | 0.00% | New | 10,611 | $34K |
| UBS Group AG | 0.00% | Add +6566.9% | 9,667 | $31K |
| FMR LLC | 0.00% | Reduce -97.0% | 4,740 | $15K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +126.4% | 2,441 | $8K |
| Morgan Stanley | 0.00% | No change | 649 | $2K |
| Group One Trading LLC | 0.00% | No change | 540 | $2K |
| Osaic Holdings, Inc. | 0.00% | New | 130 | $418 |
| Activest Wealth Management | 0.00% | No change | 100 | $322 |
| MAI Capital Management | 0.00% | New | 100 | $322 |
| Elevation Wealth Partners, LLC | 0.00% | New | 20 | $65 |
| Bank of America Corp. | 0.00% | Reduce -17.4% | 19 | $62 |
| SBI Securities Co., Ltd. | 0.00% | — | 11 | $35 |
| BNP Paribas Financial Markets | 0.00% | New | 5 | $16 |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 1 | $3 |
"% of holder's portfolio" is CYCLERION THERAPEUTICS INC's weight in each manager's 13F, not the share of Cyclerion Therapeutics Inc. the manager owns.