STRO — SUTRO BIOPHARMA INC

Ownership history in Affinity Asset Advisors, LLC  ·  6 quarters on record

This page tracks every 13F SEC filing in which Affinity Asset Advisors, LLC reported a position in SUTRO BIOPHARMA INC (STRO). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
2.3% (2020 Q4)
Avg. % of fund
0.6%
First filed
2020 Q4
Last filed
2025 Q4
Quarters held
6
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 REDUCED 748,382 -4,340 -0.6% 0.49% $8.7M $11.57
2025 Q3 UNCHANGED 752,722 — 0% 0.06% $654K $8.70
2025 Q2 UNCHANGED 752,722 — 0% 0.07% $537K $7.10
2025 Q1 ADDED 752,722 +672,722 +840.9% 0.05% $490K $6.50
2021 Q1 REDUCED 80,000 -120,000 -60.0% 0.62% $1.8M $227.60
2020 Q4 INITIATED 200,000 — — 2.30% $4.3M $217.10
% of Fund (quarterly)    STRO price (monthly, adj. close)

Other funds also holding STRO

As of 2025 Q4 — sorted by position size

Velan Capital Investment Management LP 3Y 2.09% ACUTA CAPITAL PARTNERS, LLC 3Y 7Y 0.53% Kynam Capital Management, LP 3Y 0.35% Opaleye Management Inc. 3Y 7Y 0.29% Samsara BioCapital, LLC 3Y 7Y 0.24% Eversept Partners, LP 3Y 7Y 0.11% Vestal Point Capital, LP 0.1% GSA CAPITAL PARTNERS LLP 3Y 7Y 0.09% TANG CAPITAL MANAGEMENT LLC 3Y 7Y 0.08% ADAR1 Capital Management, LLC 0.06%
← Back to Affinity Asset Advisors, LLC Holdings