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, Q3 2021
Institutional positions in Synlogic, Inc. as of Sep 30, 2021. 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
- 69
- +10 vs. Q2 2021
- Shares held
- 43.9M
- +14.5M (+49.5%) vs. Q2 2021
- Total value
- $133.9M
- +$19.7M (+17.3%) vs. Q2 2021
- New holders
- 14
- 18 more added
- Sold out
- 4
- 20 more reduced
1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Synlogic, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 10,106,301 | $30.8M | 0.00% | +2,251,068+28.7% | Added |
| Ra Capital Management, L.P. | 6,666,666 | $20.3M | 0.28% | +6,666,666 | New |
| OrbiMed Advisors LLC | 6,029,995 | $18.4M | 0.20% | +2,333,333+63.1% | Added |
| NEA Management Company, LLC | 4,229,410 | $12.9M | 0.16% | 00.0% | Unchanged |
| Atlas Venture Associates IX, LLC | 2,651,963 | $8.09M | 2.69% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,219,686 | $6.77M | 0.00% | +492,315+28.5% | Added |
| Alyeska Investment Group, L.P. | 2,056,293 | $6.27M | 0.08% | +1,256,293+157.0% | Added |
| Logos Global Management LP | 1,500,000 | $4.58M | 0.33% | +1,500,000 | New |
| Stonepine Capital Management, LLC | 1,000,000 | $3.05M | 1.39% | +1,000,000 | New |
| Ikarian Capital, LLC | 788,818 | $2.41M | 0.55% | −59,536−7.0% | Reduced |
| Dimensional Fund Advisors LP | 713,889 | $2.18M | 0.00% | −238,946−25.1% | Reduced |
| Sofinnova Investments, Inc. | 574,972 | $1.75M | 0.11% | 00.0% | Unchanged |
| LMR Partners LLP | 500,000 | $1.52M | 0.02% | +200,000+66.7% | Added |
| Royce & Associates LP | 484,041 | $1.48M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 447,650 | $1.36M | 0.00% | −219,923−32.9% | Reduced |
| Maven Securities LTD | 416,943 | $1.27M | 0.15% | +316,943+316.9% | Added |
| Two Sigma Advisers, LP | 402,900 | $1.23M | 0.00% | −284,900−41.4% | Reduced |
| BlackRock Inc. | 372,959 | $1.14M | 0.00% | +5,997+1.6% | Added |
| Geode Capital Management, LLC | 308,507 | $940.0K | 0.00% | +51,446+20.0% | Added |
| ABG Innovation Capital Partners III GP Ltd | 205,906 | $628.0K | 26.09% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 188,672 | $575.0K | 0.00% | −75,419−28.6% | Reduced |
| Bridgeway Capital Management, LLC | 180,000 | $549.0K | 0.01% | −73,000−28.9% | Reduced |
| Gilder Gagnon Howe & Co LLC | 165,909 | $506.0K | 0.00% | −1,152,016−87.4% | Reduced |
| Monashee Investment Management LLC | 150,000 | $458.0K | 0.08% | +150,000 | New |
| Boothbay Fund Management, LLC | 144,452 | $441.0K | 0.02% | −60,765−29.6% | Reduced |
| Millennium Management LLC | 101,826 | $311.0K | 0.00% | +24,371+31.5% | Added |
| Franklin Resources Inc | 101,700 | $310.0K | 0.00% | +101,700 | New |
| Walleye Capital LLC | 98,500 | $300.0K | 0.01% | +98,500 | New |
| Jacobs Levy Equity Management, Inc | 95,991 | $293.0K | 0.00% | −19,569−16.9% | Reduced |
| Flagship Harbor Advisors, LLC | 69,000 | $268.0K | 0.03% | 00.0% | Unchanged |
| State Street Corp | 86,256 | $263.0K | 0.00% | +11,200+14.9% | Added |
| Laurion Capital Management LP | 80,100 | $244.0K | 0.00% | +80,100 | New |
| Morgan Stanley | 76,157 | $232.0K | 0.00% | +56,909+295.7% | Added |
| Bank of New York Mellon Corp | 68,580 | $209.0K | 0.00% | 00.0% | Unchanged |
| Nan Fung Group Holdings Ltd | 68,634 | $209.0K | 0.07% | 00.0% | Unchanged |
| Northern Trust Corp | 66,935 | $204.0K | 0.00% | −1,930−2.8% | Reduced |
| Suvretta Capital Management, LLC | 60,000 | $183.0K | 0.00% | +60,000 | New |
| Archford Capital Strategies, LLC | 50,000 | $153.0K | 0.04% | 00.0% | Unchanged |
| Caas Capital Management LP | 50,000 | $153.0K | 0.01% | +50,000 | New |
| Susquehanna International Group, LLP | 49,587 | $151.0K | 0.00% | +30,445+159.0% | Added |
| Squarepoint Ops LLC | 38,116 | $116.0K | 0.00% | −3,483−8.4% | Reduced |
| Magnetar Financial LLC | 32,881 | $100.0K | 0.00% | +32,881 | New |
| Virtu Financial LLC | 27,559 | $84.0K | 0.01% | −28,748−51.1% | Reduced |
| Parametric Portfolio Associates LLC | 26,452 | $81.0K | 0.00% | −896−3.3% | Reduced |
| Envestnet Asset Management Inc | 15,116 | $46.0K | 0.00% | +15,116 | New |
| XTX Topco Ltd | 13,289 | $41.0K | 0.01% | +13,289 | New |
| Citadel Advisors LLC | 12,029 | $36.0K | 0.00% | −13,804−53.4% | Reduced |
| Janney Montgomery Scott LLC | 11,000 | $34.0K | 0.00% | −12,500−53.2% | Reduced |
| Raymond James & Associates | 11,000 | $34.0K | 0.00% | +11,000 | New |
| Soundmark Wealth Management, LLC | 10,000 | $31.0K | 0.01% | 00.0% | Unchanged |
| Group One Trading, L.P. | 9,276 | $28.0K | 0.00% | −1,600−14.7% | Reduced |
| Barclays PLC | 8,374 | $26.0K | 0.00% | +3,397+68.3% | Added |
| Acadian Asset Management LLC | 8,664 | $25.0K | 0.00% | +2,676+44.7% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 8,000 | $24.0K | 0.00% | +31+0.4% | Added |
| Endurance Wealth Management, Inc. | 4,900 | $18.0K | 0.00% | 00.0% | Unchanged |
| Evoke Wealth, LLC | 5,591 | $17.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 4,868 | $15.0K | 0.00% | +2,663+120.8% | Added |
| UBS Group AG | 3,908 | $12.0K | 0.00% | −878−18.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,271 | $7.00K | 0.00% | +2,172+2,193.9% | Added |
| Harbour Investments, Inc. | 1,690 | $5.00K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 1,424 | $5.00K | 0.00% | +908+176.0% | Added |
| Total Clarity Wealth Management, Inc. | 1,000 | $3.00K | 0.00% | +1,000 | New |
| Cutler Group LP | 800 | $2.00K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 502 | $1.53K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 354 | $1.00K | 0.00% | −640−64.4% | Reduced |
| Captrust Financial Advisors | 239 | $1.00K | 0.00% | −896−78.9% | Reduced |
| Wells Fargo & Company | 215 | $1.00K | 0.00% | −14−6.1% | Reduced |
| JPMorgan Chase & Co | 19 | $0 | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 121 | $0 | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −17,418−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −14,741−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −788−100.0% | Sold out |
| QS Investors, LLC | – | – | – | – | Not filed |