Security key
869367102
Sutro Biopharma, Inc. - Common Stock, $0.001 par value per share (STRO)
CUSIP: 869367102
Q4 2025 13F Holders as of 31 Dec 2025
- Type / Class
- Equity / Common Stock, $0.001 par value per share
- Shares outstanding
- 16,607,375
- Total 13F shares
- 290,035
- Share change
- -53,066,205
- Total reported value
- $3,355,706
- Price per share
- $11.57
- Number of holders
- 6
- Value change
- -$74,008,020
- Number of buys
- 1
- Number of sells
- 82
Report period
Q4 2025
Institutions
6
Top holders
6
STRO full security history
Newer quarter: Q1 2026
Previous quarter: Q3 2025
SUTRO BIOPHARMA, INC. SEC filings
SUTRO BIOPHARMA, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 869367102
Recent filing periods:
Top shareholders 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. 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 |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
13D/G
|
Company · The Vanguard Group |
4.9%
from 13D/G
|
3,682,986
|
$3,196,832 | — | 30 Sep 2025 | |
| BlackRock, Inc. |
13D/G
13F
|
Company |
2.5%
|
2,092,281
|
$1,493,679 | -$2,892,242 | 30 Jun 2025 | |
| Edward C. Albini |
3/4/5
|
CFO AND SECRETARY |
0.97%
|
160,805
|
$141,508 | — | 15 May 2025 | |
| SUVRETTA CAPITAL MANAGEMENT, LLC |
13F
|
Company |
39%
|
6,488,324
|
$5,634,461 | — | 30 Sep 2025 | |
| Kynam Capital Management, LP |
13F
|
Company |
31%
|
5,088,099
|
$4,418,505 | — | 30 Sep 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
27%
|
4,524,350
|
$3,928,946 | — | 30 Sep 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
20%
|
3,389,322
|
$2,941,000 | — | 30 Sep 2025 | |
| Velan Capital Investment Management LP |
13F
|
Company |
19%
|
3,120,000
|
$2,709,408 | — | 30 Sep 2025 | |
| TANG CAPITAL MANAGEMENT LLC |
13F
|
Company |
17%
|
2,828,717
|
$2,456,458 | — | 30 Sep 2025 | |
| Merck & Co., Inc. |
13F
|
Company |
16%
|
2,723,509
|
$2,365,095 | — | 30 Sep 2025 | |
| Vestal Point Capital, LP |
13F
|
Company |
16%
|
2,600,000
|
$2,257,840 | — | 30 Sep 2025 | |
| Eversept Partners, LP |
13F
|
Company |
14%
|
2,291,313
|
$1,989,776 | — | 30 Sep 2025 | |
| Samsara BioCapital, LLC |
13F
|
Company |
13%
|
2,196,814
|
$1,907,713 | — | 30 Sep 2025 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
|
Company |
12%
|
2,000,000
|
$1,736,800 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
11%
|
1,845,839
|
$1,602,188 | — | 30 Sep 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
8.6%
|
1,424,797
|
$1,237,294 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
4.9%
|
820,948
|
$713,188 | — | 30 Sep 2025 | |
| Affinity Asset Advisors, LLC |
13F
|
Company |
4.5%
|
752,722
|
$653,664 | — | 30 Sep 2025 | |
| JACOBS LEVY EQUITY MANAGEMENT, INC |
13F
|
Company |
2.7%
|
445,750
|
$387,089 | — | 30 Sep 2025 | |
| DAFNA Capital Management LLC |
13F
|
Company |
2.6%
|
437,079
|
$379,559 | — | 30 Sep 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
2.4%
|
396,785
|
$344,568 | — | 30 Sep 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
2.1%
|
354,449
|
$307,804 | — | 30 Sep 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
2.1%
|
352,949
|
$306,500 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.1%
|
342,652
|
$297,559 | — | 30 Sep 2025 | |
| Shay Capital LLC |
13F
|
Company |
1.9%
|
312,051
|
$270,985 | — | 30 Sep 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
1.6%
|
258,876
|
$225,000 | — | 30 Sep 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
241,885
|
$210,053 | — | 30 Sep 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
1.4%
|
239,400
|
$207,895 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.2%
|
197,516
|
$171,522 | — | 30 Sep 2025 | |
| AJU IB Investment Co., Ltd. |
13F
|
Company |
1.1%
|
175,000
|
$153,125 | — | 30 Sep 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
1.1%
|
174,843
|
$152,000 | — | 30 Sep 2025 | |
| RBF Capital, LLC |
13F
|
Company |
0.92%
|
152,714
|
$132,617 | — | 30 Sep 2025 | |
| LPL Financial LLC |
13F
|
Company |
0.86%
|
142,883
|
$124,080 | — | 30 Sep 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.81%
|
134,919
|
$117,164 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.74%
|
122,115
|
$106,045 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.72%
|
119,434
|
$103,669 | — | 30 Sep 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.71%
|
118,443
|
$103,045 | — | 30 Sep 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.62%
|
103,592
|
$89,959 | — | 30 Sep 2025 | |
| OMERS ADMINISTRATION Corp |
13F
|
Company |
0.57%
|
95,150
|
$82,628 | — | 30 Sep 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.53%
|
88,111
|
$76,515 | — | 30 Sep 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.46%
|
76,158
|
$66,135 | — | 30 Sep 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.45%
|
75,377
|
$65,457 | — | 30 Sep 2025 | |
| Aberdeen Group plc |
13F
|
Company |
0.42%
|
69,389
|
$60,257 | — | 30 Sep 2025 | |
| Cerity Partners LLC |
13F
|
Company |
0.41%
|
68,061
|
$59,104 | — | 30 Sep 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.39%
|
65,226
|
$56,642 | — | 30 Sep 2025 | |
| Catalyst Funds Management Pty Ltd |
13F
|
Company |
0.38%
|
63,776
|
$55,383 | — | 30 Sep 2025 | |
| Vanguard Personalized Indexing Management, LLC |
13F
|
Company |
0.36%
|
60,184
|
$52,264 | — | 30 Sep 2025 | |
| IEQ CAPITAL, LLC |
13F
|
Company |
0.36%
|
59,752
|
$51,889 | — | 30 Sep 2025 | |
| Vontobel Holding Ltd. |
13F
|
Company |
0.3%
|
50,000
|
$43,420 | — | 30 Sep 2025 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.26%
|
42,900
|
$37,254 | — | 30 Sep 2025 |
Institutional Holders of Sutro Biopharma, Inc. - Common Stock, $0.001 par value per share (STRO) as of Q4 2025
As of 31 Dec 2025,
Sutro Biopharma, Inc. - Common Stock, $0.001 par value per share (STRO) was held by
6 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
290,035 shares.
The largest 6 holders included
Merck & Co., Inc., AJU IB Investment Co., Ltd., Fortitude Family Office, LLC, Bogart Wealth, LLC, Parallel Advisors, LLC, and EverSource Wealth Advisors, LLC.
This page lists
6
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
84
Q4 2025 holders
6
Holder diff
-78
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 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.
An asterisk sign (*) next to the price indicates that the price is likely invalid.