Security key
869367102
Sutro Biopharma, Inc. - Common Stock, $0.001 par value per share (STRO)
CUSIP: 869367102
Q3 2020 13F Holders as of 30 Sep 2020
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 31,151,440
- Total 13F value
- $313,088,624
- Share change
- +6,548,303
- SEC-reported price per share
- $10.05
- Number of holders
- 87
- Value change
- +$67,545,691
- Number of buys
- 57
- Number of sells
- 25
- Shares outstanding
- 16,607,375
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2020
Institutions
87
Top holders
10
STRO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2020
Previous quarter: Q2 2020
SUTRO BIOPHARMA, INC. SEC filings
SUTRO BIOPHARMA, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 869367102
Recent filing periods:
Ownership snapshot
Top reported holders of STRO - Sutro Biopharma, Inc. - Common Stock, $0.001 par value per share (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
BVF INC/IL
Disclosed value leader
BVF INC/IL
Comparable rows
15/15
Latest evidence
30 Jun 2020
13F
Lead comparable stake: 14%
Showing 1-6 of 15 holder rows.
Quick read
BVF INC/IL leads the comparable SEC ownership view at 14%.
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 BVF INC/IL's linked filing trail.
Comparable ownership
Top 5
BVF INC/IL
14%
EVENTIDE ASSET MANAGEMENT, LLC
12%
RA CAPITAL MANAGEMENT, L.P.
12%
EcoR1 Capital, LLC
11%
SV Health Investors, LLC
11%
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 |
|---|---|---|---|---|---|
| BVF INC/IL |
13F
Company
|
14%
|
$18,379,000
2,368,392 shares
|
— | 30 Jun 2020 |
| EVENTIDE ASSET MANAGEMENT, LLC |
13F
Company
|
12%
|
$15,411,000
1,985,975 shares
|
— | 30 Jun 2020 |
| RA CAPITAL MANAGEMENT, L.P. |
13F
Company
|
12%
|
$14,896,000
1,919,644 shares
|
— | 30 Jun 2020 |
| EcoR1 Capital, LLC |
13F
Company
|
11%
|
$14,189,000
1,828,492 shares
|
— | 30 Jun 2020 |
| SV Health Investors, LLC |
13F
Company
|
11%
|
$14,158,000
1,824,542 shares
|
— | 30 Jun 2020 |
| Samsara BioCapital, LLC |
13F
Company
|
10%
|
$13,002,000
1,675,579 shares
|
— | 30 Jun 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 Q3 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
87
Shares
31,151,440
Rows available
87
| 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 Q3 2020 vs Q2 2020 Across Filers
Q2 2020 holders
76
Q3 2020 holders
87
Holder diff
11
| Investor | Q2 2020 Shares | Q3 2020 Shares | Share Diff | Share Chg % | Q2 2020 value | Q3 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend