GAMMA Investing’s Upstream Bio Inc UPB Stock Holding History
Bought
Maintained
Sold
Other funds holding UPB
YIH
SAM
PFSRSONJ
CUAMC
FFA
EWA
IA
PWA
GAMMA Investing's UPB Position: Q2 2026 in Review
GAMMA Investing increased its Upstream Bio Inc (UPB) stake by 63% in Q2 2026, buying an estimated $3.76K and bringing the position to 1,164 shares worth $8.05K. The position accounts for ﹤0.01% of the portfolio, ranked #3297.
GAMMA Investing first reported a position in UPB in Q1 2025 and has held it in 6 quarters since. The position peaked at $24.4K in Q4 2025. 12 funds tracked by Wall St. Rank hold UPB as of Q2 2026.
- GAMMA Investing held 1,164 shares of Upstream Bio Inc worth $8.05K as of Q2 2026.
- GAMMA Investing bought 449 Upstream Bio Inc shares in Q2 2026, an estimated $3.76K.
- Upstream Bio Inc made up ﹤0.01% of GAMMA Investing's portfolio in Q2 2026, its #3297 holding.
- GAMMA Investing first reported a position in Upstream Bio Inc in Q1 2025 and has held it in 6 quarters since.
- GAMMA Investing's Upstream Bio Inc position peaked at $24.4K in Q4 2025.
- 12 funds tracked by Wall St. Rank held Upstream Bio Inc as of Q2 2026.
Based on GAMMA Investing's 13F filing for Q2 2026, filed 7 Jul 2026.