SUTRO BIOPHARMA INC STRO

US Healthcare Biological Products, (No Diagnostic Substances)
$30.43
+0.6%
52w: $6.80 – $40.91

Latest 13F among current holders filed 37 days ago (May 29, 2026)

Price — last 12 months

research preview data
6.8023.8640.91
Jun 20, 2025 Jul 2, 2026
Institutional holders
72
+15 QoQ
13F value
$351.7M
+470.2% QoQ
Smart-money holders
13
signal tier ≥ 2
New smart buyers
6
Q1 2026
Options barometer
puts only
— calls / $2.2M puts

Institutional value by quarter

$61.7M
Q4 2025
$351.7M
Q1 2026

Number of holders

57
Q4 2025
72
Q1 2026

Who owns STRO?

Q1 2026 filings
FundTypeSharesValue% of fundChange
BVF INC/IL ★3Fundamental concentrated1.3M$31.2M1.0%New
Affinity Asset Advisors, LLC ★2Fundamental diversified1.1M$26.6M1.6%+42.9%
SAMSARA BIOCAPITAL, LLC ★3Fundamental concentrated1.1M$26.5M2.6%+419.7%
Kynam Capital Management, LP ★3Fundamental concentrated872.6K$21.7M1.4%+81.9%
ORBIMED ADVISORS LLC ★2Fundamental diversified801.1K$20.0M0.5%New
VANGUARD CAPITAL MANAGEMENT LLC Diversified mechanical720.4K$17.9M0.0%
EVENTIDE ASSET MANAGEMENT, LLC Other715.3K$17.8M0.3%New
PERCEPTIVE ADVISORS LLC ★2Fundamental diversified715.3K$17.8M0.4%New
RA CAPITAL MANAGEMENT, L.P. ★2Fundamental diversified715.3K$17.8M0.2%New
Point72 Asset Management, L.P. Multistrat pod692.1K$17.2M0.0%+286.5%
ADAR1 Capital Management, LLC Other524.4K$13.1M0.8%+681.8%
Velan Capital Investment Management LP ★2Fundamental concentrated512.2K$12.8M8.0%+64.2%
Balyasny Asset Management L.P. Multistrat pod465.8K$11.6M0.0%+102.5%
Woodline Partners LP Other457.4K$11.4M0.0%New
UBS Group AG Bank broker392.9K$9.8M0.0%+4892.0%
ACADIAN ASSET MANAGEMENT LLC Quant stat arb335.8K$8.4M0.0%-0.6%
ACUTA CAPITAL PARTNERS, LLC ★2Fundamental concentrated269.4K$6.7M4.8%+299.4%
BlackRock, Inc. Index provider232.7K$5.8M0.0%+98.1%
KVP Capital Advisors, LP ★3Fundamental concentrated226.6K$5.6M4.2%New
MARSHALL WACE, LLP Quant stat arb222.6K$5.5M0.0%+160.0%
MILLENNIUM MANAGEMENT LLC Multistrat pod210.4K$5.2M0.0%-49.7%
ADAGE CAPITAL PARTNERS GP, L.L.C. Other200.0K$5.0M0.0%Held
Opaleye Management Inc. ★2Fundamental concentrated190.7K$4.7M0.6%Held
GEODE CAPITAL MANAGEMENT, LLC Index provider171.4K$4.3M0.0%+104.1%
CITADEL ADVISORS LLC Multistrat pod117.5K$2.9M0.0%+266.3%
RENAISSANCE TECHNOLOGIES LLC Quant stat arb97.8K$2.4M0.0%-20.4%
VANGUARD FIDUCIARY TRUST CO Diversified mechanical94.8K$2.4M0.0%
SUSQUEHANNA INTERNATIONAL GROUP, LLP Market maker84.9K$2.1M0.0%New
Eversept Partners, LP ★2Fundamental diversified73.2K$1.8M0.1%-62.2%
Burkehill Global Management, LP Quant stat arb71.5K$1.8M0.1%New
TWO SIGMA INVESTMENTS, LP Quant stat arb65.2K$1.6M0.0%+40.2%
STATE STREET CORP Index provider52.1K$1.3M0.0%+52.1%
STEMPOINT CAPITAL LP ★2Fundamental concentrated46.6K$1.2M0.1%New
Fisher Asset Management, LLC Long only active35.3K$879K0.0%0.0%
Trexquant Investment LP Diversified mechanical34.3K$855K0.0%New
NORTHERN TRUST CORP Index provider33.2K$826K0.0%+130.7%
JANE STREET GROUP, LLC Market maker27.8K$692K0.0%+21.0%
GOLDMAN SACHS GROUP INC Bank broker27.2K$677K0.0%+73.5%
GSA CAPITAL PARTNERS LLP Diversified mechanical25.8K$643K0.0%-71.0%
BANK OF AMERICA CORP /DE/ Bank broker18.9K$470K0.0%+348.1%
CITIGROUP INC Bank broker18.8K$469K0.0%+1706.8%
Brevan Howard Capital Management LP Diversified mechanical18.8K$468K0.0%New
Invesco Ltd. Index provider17.2K$428K0.0%+1.1%
RBF Capital, LLC Other15.3K$380K0.0%-50.0%
Hudson Bay Capital Management LP Multistrat pod14.8K$368K0.0%New
Sigma Planning Corp Wealth advisor12.5K$312K0.0%New
Jump Financial, LLC Market maker12.4K$309K0.0%New
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Index provider10.6K$263K0.0%New
MORGAN STANLEY Bank broker10.5K$262K0.0%-33.9%
OMERS ADMINISTRATION Corp Other8.7K$217K0.0%-21.1%

Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.