Synlogic, Inc.
SYBX- Exchange
- OTC
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001527599
No open-market purchases or sales by Synlogic, Inc. insiders were filed in the last 90 days; 1 institution reported holding it in 13F filings for Q2 2026, worth $16.7K in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Synlogic, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 25
- +2 vs. Q3 2025
- Shares held
- 6.88M
- +224.6K (+3.4%) vs. Q3 2025
- Total value
- $7.71M
- −$3.40M (−30.6%) vs. Q3 2025
- New holders
- 5
- 6 more added
- Sold out
- 3
- 1 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SYBX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1 | $16.7K |
| Q1 2026 | 2 | $14.5K |
| Q4 2025 | 25 | $7.71M |
| Q3 2025 | 23 | $11.1M |
| Q2 2025 | 19 | $8.60M |
| Q1 2025 | 18 | $8.41M |
| Q4 2024 | 18 | $9.46M |
| Q3 2024 | 17 | $10.2M |
| Q2 2024 | 17 | $10.4M |
| Q1 2024 | 17 | $12.4M |
| Q4 2023 | 24 | $18.2M |
| Q3 2023 | 28 | $7.34M |
| Q2 2023 | 45 | $13.9M |
| Q1 2023 | 51 | $21.9M |
| Q4 2022 | 51 | $25.8M |
| Q3 2022 | 52 | $37.8M |
| Q2 2022 | 51 | $46.9M |
| Q1 2022 | 51 | $102.4M |
| Q4 2021 | 62 | $104.8M |
| Q3 2021 | 69 | $133.9M |
| Q2 2021 | 60 | $114.6M |
| Q1 2021 | 55 | $65.8M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Synlogic, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 1 | $1 | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 1 | $1 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 1 | $1 | 0.00% | 00.0% | Unchanged |
| Hilltop National Bank | 20 | $22 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 24 | $27 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 66 | $73 | 0.00% | +2+3.1% | Added |
| SBI Securities Co., Ltd. | 103 | $115 | 0.00% | 00.0% | Unchanged |
| Flagship Harbor Advisors, LLC | 1,033 | $1.16K | 0.00% | +1,033 | New |
| Morgan Stanley | 1,095 | $1.23K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 2,531 | $2.83K | 0.00% | +2,531 | New |
| FMR LLC | 5,323 | $5.96K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 10,176 | $11.4K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 11,623 | $13.0K | 0.00% | +11,623 | New |
| XTX Topco Ltd | 14,398 | $16.1K | 0.00% | +3,225+28.9% | Added |
| Jane Street Group, LLC | 14,998 | $16.8K | 0.00% | +14,998 | New |
| Northern Trust Corp | 19,469 | $21.8K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 19,757 | $22.1K | 0.00% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 19,966 | $22.4K | 0.00% | −456−2.2% | Reduced |
| DRW Securities, LLC | 24,363 | $27.3K | 0.00% | +24,363 | New |
| Geode Capital Management, LLC | 71,645 | $80.2K | 0.00% | +3,980+5.9% | Added |
| Renaissance Technologies LLC | 85,627 | $95.9K | 0.00% | +46,117+116.7% | Added |
| Citadel Advisors LLC | 141,608 | $158.6K | 0.00% | +112,597+388.1% | Added |
| Vanguard Group Inc | 201,060 | $225.2K | 0.00% | +4,599+2.3% | Added |
| NEA Management Company, LLC | 2,922,772 | $3.27M | 0.17% | 00.0% | Unchanged |
| Cable Car Capital LLC | 3,312,219 | $3.71M | 0.23% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |