SynlogicSYBX
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 23 institutions reported holding Synlogic Inc. (SYBX) in their 13F filings, up 4 from Q2 2025. 7 opened new positions and 3 sold out. The largest holders were Cable Car Capital, LP ($5.5M), NEA Management Company, LLC ($4.9M) and Vanguard Group Inc. ($332K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Synlogic Inc.
- CUSIP
- 87166L209
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $100K |
| Exits | 3 | $59K |
All 13F filers, Q2 2025 → Q3 2025: 90,266 shares bought and 206,848 shares sold, net −116,582 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Cable Car Capital, LP | 4.14% | No change | 3,312,219 | $5.5M |
| NEA Management Company, LLC | 0.27% | No change | 2,922,772 | $4.9M |
| Vanguard Group Inc. | 0.00% | Add +7.3% | 196,461 | $332K |
| Geode Capital Management, LLC | 0.00% | Add +2.1% | 67,665 | $114K |
| Renaissance Technologies | 0.00% | Add +65.9% | 39,510 | $66K |
| Citadel Advisors | 0.00% | New | 29,011 | $49K |
| Ikarian Capital, LLC | 0.01% | No change | 20,422 | $35K |
| BlackRock, Inc. | 0.00% | No change | 19,757 | $33K |
| Northern Trust Corp. | 0.00% | New | 19,469 | $32K |
| XTX Topco Ltd | 0.00% | New | 11,173 | $19K |
| State Street Corp. | 0.00% | No change | 10,176 | $17K |
| FMR LLC | 0.00% | Reduce -96.8% | 5,323 | $9K |
| Morgan Stanley | 0.00% | Reduce -2.7% | 1,095 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -5.5% | 103 | $172 |
| Bank of America Corp. | 0.00% | Reduce -7.3% | 64 | $107 |
| BNP Paribas Financial Markets | 0.00% | No change | 24 | $40 |
| Jones Financial Companies LLLP | 0.00% | New | 20 | $35 |
| Hilltop National Bank | 0.00% | No change | 20 | $33 |
| Wells Fargo & Company | 0.00% | New | 5 | $8 |
| JPMorgan Chase & Co. | 0.00% | No change | 1 | $2 |
| Barclays PLC | 0.00% | New | 1 | $2 |
| Danske Bank A/S | 0.00% | No change | 1 | $2 |
| Citigroup Inc. | 0.00% | New | 1 | $2 |
"% of holder's portfolio" is SYBX's weight in each manager's 13F, not the share of Synlogic Inc. the manager owns.