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.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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