What does CUSIP 87166L100 represent in this 13F holders report?

CUSIP 87166L100 is the security identifier for SYBX - Synlogic, Inc. - Common Stock, par value $0.001 used to aggregate holder disclosures.

How many institutions held SYBX - Synlogic, Inc. - Common Stock, par value $0.001 in Q4 2021?

57 institutional investors reported SYBX - Synlogic, Inc. - Common Stock, par value $0.001 for Q4 2021. Use the holders table for investor-level position and value details.

Synlogic, Inc. - Common Stock, par value $0.001 (SYBX)

CUSIP: 87166L100

Q4 2021 13F Holders as of 31 Dec 2021

Security type / class: Equity / Common Stock, par value $0.001
Total 13F shares: 43,313,130
Total 13F value: $104,813,215
Share change: -1,011,109
SEC-reported price per share: $2.42
Number of holders: 57
Value change: -$4,149,824
Number of buys: 23
Number of sells: 28
Shares outstanding: 11,697,161

Security key

87166L100

Report period

Q4 2021

Institutions

Top holders

SYBX full security history Ownership snapshot Full 13F holder table SYNLOGIC, INC. SEC filings SYNLOGIC, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of SYBX - Synlogic, Inc. - Common Stock, par value $0.001 (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

FMR LLC

Disclosed value leader

FMR LLC

Comparable rows

15/15

Latest evidence

30 Sep 2021

13F Lead comparable stake: 86% Showing 1-6 of 15 holder rows.

Quick read

FMR LLC leads the comparable SEC ownership view at 86%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens FMR LLC's linked filing trail.

Comparable ownership Top 5

FMR LLC 86%

RA CAPITAL MANAGEMENT, L.P. 57%

ORBIMED ADVISORS LLC 52%

NEA Management Company, LLC 36%

Atlas Venture Associates IX, LLC 23%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
FMR LLC	13F Company 13F	86%	$30,825,000 10,106,301 shares	—	30 Sep 2021
RA CAPITAL MANAGEMENT, L.P.	13F Company 13F	57%	$20,333,000 6,666,666 shares	—	30 Sep 2021
ORBIMED ADVISORS LLC	13F Company 13F	52%	$18,391,000 6,029,995 shares	—	30 Sep 2021
NEA Management Company, LLC	13F Company 13F	36%	$12,900,000 4,229,410 shares	—	30 Sep 2021
Atlas Venture Associates IX, LLC	13F Company 13F	23%	$8,088,000 2,651,963 shares	—	30 Sep 2021
VANGUARD GROUP INC	13F Company 13F	19%	$6,770,000 2,219,686 shares	—	30 Sep 2021

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

43,313,130

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2021 vs Q3 2021 Across Filers

Q3 2021 holders

Q4 2021 holders

Holder diff

-6

Investor	Q3 2021 Shares	Q4 2021 Shares	Share Diff	Share Chg %	Q3 2021 value	Q4 2021 value	Value change	Value Chg %