Synlogic
SYBX • NASDAQ
Synlogic is a biotechnology company in the healthcare sector on NASDAQ, led by Mary Beth Dooley, with a market cap of $13.0M. As of Q3 2025, 57% of shares are held by 22 institutional investors, with Cable Car Capital LLC as the largest holder at 28.31%.
Principal Executive Officer and Principal Financial OfficerMary Beth Dooley
Market Cap$13.0M
Biotechnology
Healthcare
Employees6.0
Websitesynlogictx.com
Country
United States of America
Overview
Overview of institutional ownership in SYBX as of Q3 2025 with a market cap of $19.5M
All Institutions
- Institutions
- 22
- Value Held
- $11.1M
- Shares Held
- 6.7M
- Avg Position
- $504.9K
- Median Position
- $13.1K
Hedge Funds
- Hedge Funds
- 4
- Value Held
- $5.7M
- Shares Held
- 3.4M
- Avg Position
- $1.4M
- Median Position
- $57.5K
Ownership Breakdown
Based on market cap of $19.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in SYBX as of Q3 2025
| Institution | Position Value |
|---|---|
 Cable Car Capital LLC Hedge Fund•Long/Short | $5.5M 4.63% of portfolio |
 NEA Management Company, LLC Venture Capital | $4.9M 0.27% of portfolio |
 VANGUARD GROUP INC Institution | $332.0K 0.00% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $114.4K 0.00% of portfolio |
 RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $65.9K 0.00% of portfolio |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $49.0K 0.00% of portfolio |
 Ikarian Capital, LLC Hedge Fund•Event Driven | $34.5K 0.01% of portfolio |
B BlackRock, Inc. Institution | $33.0K 0.00% of portfolio |
 NORTHERN TRUST CORP Institution | $32.5K 0.00% of portfolio |
X XTX Topco Ltd Institution | $18.9K 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for SYBX in Q3 2025
- Traded
- +$102.1K
- Buyers
- 11
- Sellers
- 6
- Total Bought
- +$160.8K
- Total Sold
- −$58.7K
- Avg Position
- $444.3K
Biggest Buyers
| Institution | Net Bought |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$49.0K +29.0K shares |
NORTHERN TRUST CORP Institution | +$32.5K +19.5K shares |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$26.2K +15.7K shares |
VANGUARD GROUP INC Institution | +$22.7K +13.5K shares |
X XTX Topco Ltd Institution | +$18.9K +11.2K shares |
 FMR LLC Institution | +$9.0K +-160.7K shares |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$2.4K +1.4K shares |
J JONES FINANCIAL COMPANIES LLLP Institution | +$35.0 +20.0 shares |
 WELLS FARGO & COMPANY/MN Institution | +$8.0 +5.0 shares |
 BARCLAYS PLC Institution | +$2.0 +1.0 shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
F FIDUCIARY TRUST CO Institution | −$28.4K −22.4K shares |
R Rangeley Capital, LLC Hedge Fund•Event Driven | −$17.3K −13.6K shares |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | −$12.9K −10.2K shares |
 MORGAN STANLEY RIA/Wealth | −$50.0 −30.0 shares |
S SBI Securities Co., Ltd. Institution | −$10.0 −6.0 shares |
 BANK OF AMERICA CORP /DE/ Institution | −$8.4 −5.0 shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited SYBX in Q3 2025
- New Positions
- 1
- New Value
- $35.0
- Exited Positions
- 3
- Exited Value
- $58.6K
New Positions
| Institution | Position Value |
|---|---|
J JONES FINANCIAL COMPANIES LLLP Institution | $35.0 20.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
F FIDUCIARY TRUST CO Institution | $28.4K 22.4K shares |
R Rangeley Capital, LLC Hedge Fund•Event Driven | $17.3K 13.6K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $12.9K 10.2K shares |
Options Activity
Institutions with the largest Call and Put options positions in SYBX as of Q3 2025
- Call Positions
- 0
- Call Value
- -
- Put Positions
- 0
- Put Value
- -
Call Positions
| Institution | Position Value |
|---|---|
| No call positions found | |
Put Positions
| Institution | Position Value |
|---|---|
| No put positions found | |
Most Committed Institutions
Institutions with SYBX as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Cable Car Capital LLC Hedge Fund•Long/Short | 4.63% $5.5M |
NEA Management Company, LLC Venture Capital | 0.27% $4.9M |
Ikarian Capital, LLC Hedge Fund•Event Driven | 0.01% $34.5K |
X XTX Topco Ltd Institution | 0.00% $18.9K |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | 0.00% $65.9K |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | 0.00% $49.0K |
H Hilltop National Bank Institution | 0.00% $33.0 |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | 0.00% $114.4K |
VANGUARD GROUP INC Institution | 0.00% $332.0K |
S SBI Securities Co., Ltd. Institution | 0.00% $172.0 |
Hedge Fund Spotlight
Discover hedge funds investing in SYBX
RENAISSANCE TECHNOLOGIES LLC
Hedge Fund • Quant
Portfolio ManagerPeter Fitzhugh Brown
- Portfolio Value
- $75.8B
- Positions
- 3,419
- Last Reported
- Q3 2025
Sector Allocation
Position in Synlogic
- Market Value
- $65.9K
- Shares Held
- 39.5K
- Portfolio Weight
- 0.00%
- Owned Since
- 2019-Q1
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $1.6B | 2.06% | |
Semiconductors Technology | $1.1B | 1.39% | |
Electronic Gaming & Multimedia Technology | $953.5M | 1.26% |
