SYNLOGIC, INC. - SYBX
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cable Car Capital, LP | History | No change | 3,312,219 | 3,709 | 0.12% | 2.37% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| NEA Management Company, LLC | History | No change | 2,922,772 | 3,273 | 0.17% | 0.27% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Added to | 201,060 | 225 | 0.0% | 0.0% | 3 | +4,599 | 2.34% | Q4 2025 | Jan 29, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 141,608 | 158 | 0.0% | 0.0% | 4 | +112,597 | 388.12% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 85,627 | 95 | 0.0% | 0.0% | 5 | +46,117 | 116.72% | Q4 2025 | Feb 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 71,645 | 80 | 0.0% | 0.0% | 6 | +3,980 | 5.88% | Q4 2025 | Feb 09, 2026 |
| DRW Securities, LLC | History | New | 24,363 | 27 | 0.0% | — | 7 | +24,363 | New | Q4 2025 | Feb 12, 2026 |
| Ikarian Capital, LLC | History | Reduced | 19,966 | 22 | 0.0% | 0.0% | 8 | -456 | -2.23% | Q4 2025 | Feb 18, 2026 |
| BlackRock, Inc. | History | No change | 19,757 | 22 | 0.0% | 0.0% | 9 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| NORTHERN TRUST CORP | History | No change | 19,469 | 21 | 0.0% | 0.0% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | New | 14,998 | 16 | 0.0% | — | 11 | +14,998 | New | Q4 2025 | Feb 12, 2026 |
| XTX Topco Ltd | History | Added to | 14,398 | 16 | 0.0% | 0.0% | 12 | +3,225 | 28.86% | Q4 2025 | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | New | 11,623 | 13 | 0.0% | — | 13 | +11,623 | New | Q4 2025 | Feb 17, 2026 |
| STATE STREET CORP | History | No change | 10,176 | 11 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| FMR LLC | History | No change | 5,323 | 5 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | New | 2,531 | 2 | 0.0% | — | 16 | +2,531 | New | Q4 2025 | Jan 29, 2026 |
| FLAGSHIP HARBOR ADVISORS, LLC | History | New | 1,033 | 1 | 0.0% | — | 18 | +1,033 | New | Q4 2025 | Jan 21, 2026 |
| MORGAN STANLEY | History | No change | 1,095 | 1 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Closed out | 0 | 0 | — | — | — | -20 | -100.0% | Q3 2025 | Nov 04, 2025 |
| WELLS FARGO & COMPANY/MN | History | Closed out | 0 | 0 | — | — | — | -5 | -100.0% | Q3 2025 | Nov 13, 2025 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 66 | 0 | — | — | — | +2 | 3.13% | Q4 2025 | Feb 17, 2026 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q3 2025 | Mar 31, 2026 |
| JPMORGAN CHASE & CO | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| DANSKE BANK A/S | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| CITIGROUP INC | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 24 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| SBI Securities Co., Ltd. | History | No change | 103 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| Hilltop National Bank | History | No change | 20 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 07, 2026 |