What does CUSIP 87166L209 represent in this 13F holders report?

CUSIP 87166L209 is the security identifier for SYBX - SYNLOGIC, INC. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

How many institutions held SYBX - SYNLOGIC, INC. - Common Stock, par value $0.001 per share in Q4 2023?

23 institutional investors reported SYBX - SYNLOGIC, INC. - Common Stock, par value $0.001 per share for Q4 2023. Use the holders table for investor-level position and value details.

SYNLOGIC, INC. - Common Stock, par value $0.001 per share (SYBX)

CUSIP: 87166L209

Q4 2023 13F Holders as of 31 Dec 2023

Type / Class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 11,703,954
Total 13F shares: 4,715,822
Share change: -408,998
Total reported value: $18,155,320
Price per share: $3.85
Number of holders: 23
Value change: -$1,046,769
Number of buys: 14
Number of sells: 11

Quarterly Holders Quick Answers

What is CUSIP 87166L209?
CUSIP 87166L209 identifies SYBX - SYNLOGIC, INC. - Common Stock, par value $0.001 per share in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2024
Previous quarter: Q3 2023

Recent filing periods for CUSIP 87166L209:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of SYBX - SYNLOGIC, INC. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
FMR LLC	13F	Company	5.5%	646,846	$1,817,637	—	30 Sep 2023	13F
ARMISTICE CAPITAL, LLC	13F	Company	5.1%	599,874	$1,685,646	—	30 Sep 2023	13F
New Enterprise Associates 14, L.P.	3/4/5	10%+ Owner	— class O/S missing	2,922,773	$1,682,933	—	03 Oct 2023	3/4/5
ORBIMED ADVISORS LLC	13F	Company	3.4%	401,998	$1,129,614	—	30 Sep 2023	13F
NEA Management Company, LLC	13F	Company	2.4%	281,929	$614,605	—	30 Sep 2023	13F
Atlas Venture Associates IX, LLC	13F	Company	1.5%	176,798	$496,802	—	30 Sep 2023	13F
Alyeska Investment Group, L.P.	13F	Company	1.4%	168,034	$472,176	—	30 Sep 2023	13F
VANGUARD GROUP INC	13F	Company	1.3%	149,571	$420,295	—	30 Sep 2023	13F
Aoife Brennan	3/4/5	President and CEO, Director	— mixed-class rows	264,967 mixed-class rows	$147,578	—	10 Nov 2023	3/4/5
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)	13F	Company	0.35%	40,548	$113,940	—	30 Sep 2023	13F
Sofinnova Investments, Inc.	13F	Company	0.33%	38,331	$107,710	—	30 Sep 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.26%	30,326	$85,231	—	30 Sep 2023	13F
FIDUCIARY TRUST CO	13F	Company	0.19%	22,353	$62,812	—	30 Sep 2023	13F
HARBOR CAPITAL ADVISORS, INC.	13F	Company	0.18%	21,403	$60,143	—	30 Sep 2023	13F
Ikarian Capital, LLC	13F	Company	0.17%	20,448	$57,459	—	30 Sep 2023	13F
BlackRock Finance, Inc.	13F	Company	0.17%	20,005	$56,214	—	30 Sep 2023	13F
ABG Innovation Capital Partners III GP Ltd	13F	Company	0.12%	13,727	$38,572	—	30 Sep 2023	13F
WINTON GROUP Ltd	13F	Company	0.11%	12,401	$34,847	—	30 Sep 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.09%	11,012	$30,944	—	30 Sep 2023	13F
STATE STREET CORP	13F	Company	0.09%	10,282	$28,892	—	30 Sep 2023	13F
Michael Vangsted Jensen	3/4/5	Chief Financial Officer	— mixed-class rows	53,613 mixed-class rows	$27,032	—	10 Nov 2023	3/4/5
OSAIC HOLDINGS, INC.	13F	Company	0.03%	3,245	$9,113	—	30 Sep 2023	13F
Ensign Peak Advisors, Inc	13F	Company	0.02%	2,207	$6,202	—	30 Sep 2023	13F
MORGAN STANLEY	13F	Company	0.01%	1,632	$4,586	—	30 Sep 2023	13F
ROYAL BANK OF CANADA	13F	Company	0.01%	897	$3,000	—	30 Sep 2023	13F
Tower Research Capital LLC (TRC)	13F	Company	0.01%	672	$1,888	—	30 Sep 2023	13F
PNC FINANCIAL SERVICES GROUP, INC.	13F	Company	0%	466	$1,309	—	30 Sep 2023	13F
ACADIAN ASSET MANAGEMENT LLC	13F	Company	0%	475	$1,000	—	30 Sep 2023	13F
RHUMBLINE ADVISERS	13F	Company	0%	45	$126	—	30 Sep 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0%	36	$102	—	30 Sep 2023	13F
JPMORGAN CHASE & CO	13F	Company	0%	6	$17	—	30 Sep 2023	13F
Gregg Beloff	3/4/5	Interim Chief Financial Officer	— class O/S missing	50,000	—	—	06 Dec 2021	3/4/5
Lisa Kelly-Croswell	3/4/5	Director	— class O/S missing	30,000	—	—	22 Jun 2023	3/4/5
Mathers Edward T.	3/4/5	Director	— class O/S missing	30,000	—	—	22 Jun 2023	3/4/5
Michael F. Burgess	3/4/5	Director	— class O/S missing	30,000	—	—	22 Jun 2023	3/4/5
Michael Thomas Heffernan	3/4/5	Director	— class O/S missing	30,000	—	—	22 Jun 2023	3/4/5
Nick Leschly	3/4/5	Director	— class O/S missing	30,000	—	—	22 Jun 2023	3/4/5

Institutional Holders of SYNLOGIC, INC. - Common Stock, par value $0.001 per share (SYBX) as of Q4 2023

As of 31 Dec 2023, SYNLOGIC, INC. - Common Stock, par value $0.001 per share (SYBX) was held by 23 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 4,715,822 shares. The largest 10 holders included NEA Management Company, LLC, ARMISTICE CAPITAL, LLC, FMR LLC, VANGUARD GROUP INC, Alyeska Investment Group, L.P., RENAISSANCE TECHNOLOGIES LLC, GEODE CAPITAL MANAGEMENT, LLC, HARBOR CAPITAL ADVISORS, INC., FIDUCIARY TRUST CO, and Ikarian Capital, LLC. This page lists 23 institutional shareholders reporting positions in this security for the Q4 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

Q4 2023 holders

Holder diff

-2

Investor	Q3 2023 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2023 Value $	Q4 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.