UPB — UPSTREAM BIO INC

Ownership history in Caption Management, LLC  ·  2 quarters on record

This page tracks every 13F SEC filing in which Caption Management, LLC reported a position in UPSTREAM BIO INC (UPB). 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
0.01% (2025 Q3)
Avg. % of fund
0.01%
First filed
2025 Q3
Last filed
2025 Q3
Quarters held
2
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 70,000 +51,804 +284.7% 0.01% $1.3M $18.81
2025 Q3 INITIATED 18,196 — — 0.00% $342K $18.81
% of Fund (quarterly)    UPB price (monthly, adj. close)

Other funds also holding UPB

As of 2025 Q4 — sorted by position size

Omega Fund Management, LLC 3Y 7Y 12.57% Decheng Capital LLC 11.48% ORBIMED ADVISORS LLC 3Y 7Y 3.16% Bain Capital Life Sciences Investors, LLC 3Y 7Y 2.76% GREAT POINT PARTNERS LLC 3Y 7Y 2.64% Parkman Healthcare Partners LLC 3Y 2.16% Samsara BioCapital, LLC 3Y 7Y 2.06% VR Adviser, LLC 3Y 1.57% Integral Health Asset Management, LLC 3Y 1.01% Exome Asset Management LLC 0.84%
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