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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.

Q2 2025 vs. Q1 2025

How the institutions holding Sutro Biopharma, Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of STRO: Q1 2025 compared with Q2 2025
MeasureQ1 2025Q2 2025Change
Holders113101−12
Shares61.5M55.5M−5.92M (−9.6%)
Value$40.0M$39.6M−$341.8K (−0.9%)

New holders (31)

Institutions that held Sutro Biopharma, Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to STRO in Q2 2025
InstitutionSharesValue% of portfolio
Jane Street Group, LLC688,850$491.8K0.00%
Cantor Fitzgerald, L. P.500,000$356.9K0.01%
Marshall Wace, LLP234,431$166.4K0.00%
RBF Capital, LLC160,000$114.2K0.01%
Qube Research & Technologies Ltd115,401$82.4K0.00%
Jain Global LLC84,472$60.3K0.00%
Y-Intercept (Hong Kong) Ltd66,591$47.5K0.00%
Point72 Asia (Singapore) Pte. Ltd.61,068$43.6K0.01%
Catalyst Funds Management Pty Ltd38,500$27.5K0.01%
Hudson Bay Capital Management LP22,571$16.1K0.00%
Callan Family Office, LLC16,177$11.5K0.00%
Mariner, LLC13,630$9.73K0.00%
Ground Swell Capital, LLC12,683$9.05K0.01%
Pallas Capital Advisors LLC11,110$7.93K0.00%
Captrust Financial Advisors10,998$7.85K0.00%
Revolve Wealth Partners, LLC10,312$7.36K0.00%
Quantinno Capital Management LP10,170$7.26K0.00%
Lazard Asset Management LLC10,947$7.00K0.00%
Cubist Systematic Strategies, LLC6,078$4.34K0.00%
GWM Advisors LLC4,113$2.94K0.00%
Nisa Investment Advisors, LLC1,259$8990.00%
Rise Advisors, LLC769$5490.00%
Rialto Wealth Management, LLC707$5050.00%
Essential Partners LLC654$4670.00%
True Wealth Design, LLC559$4000.00%
Raymond James Financial Inc500$3570.00%
Clearstead Advisors, LLC121$870.00%
IFP Advisors, Inc78$560.00%
Group One Trading, L.P.20$140.00%
Caitong International Asset Management Co., Ltd1$10.00%
Avion Wealth716$00.00%

Sold out (43)

Institutions that held Sutro Biopharma, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of STRO in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Ra Capital Management, L.P.4,434,637$2.89M
Nuveen, LLC290,897$189.3K
Bank of New York Mellon Corp209,222$136.1K
Charles Schwab Investment Management Inc199,901$130.1K
D. E. Shaw & Co., Inc.158,037$102.8K
STRS Ohio152,800$99.4K
Citadel Advisors LLC141,229$91.9K
Panagora Asset Management Inc140,362$91.3K
Exchange Traded Concepts, LLC136,623$88.9K
Rhumbline Advisers122,816$79.9K
Alliancebernstein L.P.96,370$62.7K
State of Wyoming94,932$61.8K
SG Americas Securities, LLC84,907$55.0K
Intech Investment Management LLC72,540$47.2K
Alps Advisors Inc61,267$39.9K
SEI Investments Co56,347$36.7K
Mirae Asset Global ETFs Holdings Ltd.48,998$31.9K
Corebridge Financial, Inc.40,104$26.1K
Price T Rowe Associates Inc36,893$25.0K
Susquehanna Fundamental Investments, LLC37,956$24.7K
Voya Investment Management LLC36,487$23.7K
Manufacturers Life Insurance Company, The30,993$20.2K
UBS Oconnor LLC28,278$18.4K
XTX Topco Ltd25,166$16.4K
Oxford Asset Management LLP22,850$14.9K
ProShare Advisors LLC21,441$13.9K
CIBC World Markets Corp18,164$11.8K
State Board of Administration of Florida Retirement System17,273$11.2K
Prime Capital Investment Advisors, LLC17,111$11.1K
Police & Firemen's Retirement System of New Jersey16,570$10.8K
Zacks Investment Management15,143$9.85K
New York State Common Retirement Fund13,625$8.86K
Diversified Trust Co12,610$8.20K
Sherbrooke Park Advisers LLC10,508$6.84K
Russell Investments Group, Ltd.9,258$6.02K
Legal & General Group Plc7,073$4.60K
Ameritas Investment Partners, Inc.6,622$4.31K
California State Teachers Retirement System5,932$3.86K
Amalgamated Bank2,825$2.00K
Sterling Capital Management LLC1,471$957
Concord Wealth Partners1,000$651
AdvisorNet Financial, Inc500$325
Rothschild Investment LLC300$195