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Sutro Biopharma, Inc.

STRO
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001382101

No open-market purchases or sales by Sutro Biopharma, Inc. insiders were filed in the last 90 days; 100 institutions reported holding it in 13F filings for Q2 2026, worth $545.7M in total; no superinvestor holds it.

Q3 2023 vs. Q2 2023

How the institutions holding Sutro Biopharma, Inc. changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of STRO: Q2 2023 compared with Q3 2023
MeasureQ2 2023Of which not filed for Q3 2023Q3 2023Change
Holders1201109−10
Shares54.1M98.4K55.9M+1.89M (+3.5%)
Value$251.6M$457.3K$194.3M−$56.8M (−22.6%)

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (7)

Institutions that held Sutro Biopharma, Inc. at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to STRO in Q3 2023
InstitutionSharesValue% of portfolio
UBS Oconnor LLC330,000$1.15M0.02%
Gsa Capital Partners LLP67,754$235.0K0.02%
SG Americas Securities, LLC32,465$113.0K0.00%
HSBC Holdings PLC27,771$97.6K0.00%
XTX Topco Ltd20,446$70.9K0.01%
Qube Research & Technologies Ltd4,953$17.2K0.00%
Comerica Bank280$9710.00%

Sold out (17)

Institutions that held Sutro Biopharma, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of STRO in Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Opaleye Management Inc.307,000$1.43M
Balyasny Asset Management LLC214,021$995.2K
Two Sigma Investments, LP135,816$631.5K
D. E. Shaw & Co., Inc.40,723$189.4K
Soleus Capital Management, L.P.25,887$120.4K
Caxton Associates LP21,351$99.3K
Cubist Systematic Strategies, LLC16,517$76.8K
Point72 Middle East FZE15,069$70.1K
Y-Intercept (Hong Kong) Ltd14,190$66.0K
Algert Global LLC12,250$57.0K
Ergoteles LLC11,690$54.4K
Fairfield, Bush & Co.2,000$9.30K
Quadrant Capital Group LLC1,976$9.19K
Signaturefd, LLC941$4.38K
Lindbrook Capital, LLC67$312
Baker Avenue Asset Management, LP45$209
Group One Trading, L.P.34$158

Not filed for Q3 2023 yet (1)

Institutions that held Sutro Biopharma, Inc. at the end of Q2 2023 and haven't filed a 13F for Q3 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding STRO in Q2 2023 that haven't filed for Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Tekla Capital Management LLC98,354$457.3K