SynlogicSYBX

13F holders, Q1 2025 (March 31)
18holders
1new positions
0sold out
2famous investors
$1.24avg. 13F price*

At the end of Q1 2025, 18 institutions reported holding Synlogic Inc. (SYBX) in their 13F filings, unchanged from Q4 2024. 1 opened new positions and 0 sold out. The largest holders were Cable Car Capital, LP ($4.1M), NEA Management Company, LLC ($3.6M) and Vanguard Group Inc. ($227K). 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

0510152025 Q1 2024: 17Q1 2024Q2 2024: 17Q2 2024Q3 2024: 17Q3 2024Q4 2024: 18Q4 2024Q1 2025: 18Q1 2025Q2 2025: 19Q2 2025Q3 2025: 23Q3 2025Q4 2025: 25Q4 2025Q1 2026: 2Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions1$22K
Exits0$0

All 13F filers, Q4 2024 → Q1 2025: 18,822 shares bought and 2,431 shares sold, net +16,391 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 18 holders

Cable Car Capital, LP 4.73% No change 3,312,219 $4.1M
NEA Management Company, LLC 0.28% No change 2,922,772 $3.6M
Vanguard Group Inc. 0.00% No change 183,002 $227K
FMR LLC 0.00% Reduce -0.1% 166,501 $206K
Geode Capital Management, LLC 0.00% Reduce -3.2% 66,238 $82K
Renaissance Technologies 0.00% Add +5.4% 23,510 $29K
Fiduciary Trust Co 0.00% No change 22,352 $28K
Ikarian Capital, LLC 0.01% No change 20,422 $25K
BlackRock, Inc. 0.00% No change 19,757 $24K
Citadel Advisors 0.00% New 17,520 $22K
ABG Innovation Capital Partners III GP Ltd 2.13% No change 13,727 $17K
State Street Corp. 0.00% No change 10,176 $13K
Morgan Stanley 0.00% No change 2,125 $3K
SBI Securities Co., Ltd. 0.00% Add +3333.3% 103 $128
Bank of America Corp. 0.00% Add +3.3% 63 $78
BNP Paribas Financial Markets 0.00% No change 24 $30
JPMorgan Chase & Co. 0.00% Reduce -12.5% 7 $8
Danske Bank A/S 0.00% No change 1 $1

"% of holder's portfolio" is SYBX's weight in each manager's 13F, not the share of Synlogic Inc. the manager owns.