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GRAY MICHAEL
CFO and COO
10Open-market trades
3Tickers
+5.28%Avg 90d after buys
+13.0%Avg 90d after sales
−27.5%Avg 180d after buys
+25.4%Avg 180d after sales
Upstream Bio, Inc. 3 open-market prints by this insider, 3/16/2026 – 9/16/2026. Triangles mark only their Form 4 purchases and sales. Full UPB chart
UPB adjusted close▲ buy▼ sale
UPB trades
| Date | Form 4 | Ticker | Side | Shares | Value | 90d | 180d |
|---|---|---|---|---|---|---|---|
| 9/16/2026 | Upstream Bio, Inc · Pharmaceutical PreparationsIndustryPharmaceutical PreparationsMkt cap (est.)$764.79MPrice$5.3452w high$32.6052w low$5.31 | SELL | 853 | $4.7K | +12.1%hist | +18.8%hist | |
| 6/16/2026 | Upstream Bio, Inc · Pharmaceutical PreparationsIndustryPharmaceutical PreparationsMkt cap (est.)$764.79MPrice$5.3452w high$32.6052w low$5.31 | SELL | 853 | $5.2K | +1.86% | +18.8%hist | |
| 3/16/2026 | Upstream Bio, Inc · Pharmaceutical PreparationsIndustryPharmaceutical PreparationsMkt cap (est.)$764.79MPrice$5.3452w high$32.6052w low$5.31 | SELL | 852 | $7.9K | +36.5% | +39.5% |
Chart uses split-adjusted closes from the first print through the latest available bar. Returns use the last close on or before the trade date and the first close on or after 90 and 180 calendar days. Sales are signed so a declining price is a positive result for the seller. Not investment advice.