Security key
87166L100
Synlogic, Inc. - Common Stock, par value $0.001 (SYBX)
CUSIP: 87166L100
Q1 2021 13F Holders as of 31 Mar 2021
- Security type / class
- Equity / Common Stock, par value $0.001
- Total 13F shares
- 18,389,830
- Total 13F value
- $65,811,093
- Share change
- +3,851,967
- Put/Call ratio
- 149%
- SEC-reported price per share
- $3.58
- Number of holders
- 52
- Value change
- +$14,021,353
- Number of buys
- 28
- Number of sells
- 23
- Shares outstanding
- 11,697,161
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
52
Top holders
10
SYBX full security history
Ownership snapshot
Full 13F holder table
SYNLOGIC, INC. SEC filings
SYNLOGIC, INC. company facts
Broader feeds
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
NEA Management Company, LLC
Disclosed value leader
NEA Management Company, LLC
Comparable rows
0/15
Latest evidence
31 Dec 2020
13F
Highest disclosed value: $9,135,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
NEA Management Company, LLC has the largest disclosed position value at $9.14M.
0 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 NEA Management Company, LLC's linked filing trail.
Disclosed position value
Top 5
NEA Management Company, LLC
$9.14M
Atlas Venture Associates IX, LLC
$5.73M
ORBIMED ADVISORS LLC
$4.38M
DIMENSIONAL FUND ADVISORS LP
$2.12M
VANGUARD GROUP INC
$1.76M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| NEA Management Company, LLC |
13F
Company
|
—
denominator unverified
|
$9,135,000
4,229,410 shares
|
— | 31 Dec 2020 |
| Atlas Venture Associates IX, LLC |
13F
Company
|
—
denominator unverified
|
$5,728,000
2,651,963 shares
|
— | 31 Dec 2020 |
| ORBIMED ADVISORS LLC |
13F
Company
|
—
denominator unverified
|
$4,385,000
2,029,996 shares
|
— | 31 Dec 2020 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$2,120,000
981,432 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$1,756,000
812,977 shares
|
— | 31 Dec 2020 |
| Sofinnova Investments, Inc. |
13F
Company
|
—
denominator unverified
|
$1,242,000
574,972 shares
|
— | 31 Dec 2020 |
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 Q1 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
52
Shares
18,389,830
Rows available
52
| 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 Q1 2021 vs Q1 2021 Across Filers
Q1 2021 holders
52
Q1 2021 holders
52
Holder diff
0
| Investor | Q1 2021 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q1 2021 value | Value change | Value Chg % |
|---|