Michael Gray, CFO and COO at Upstream Bio, Inc. (UPB), sold 853 shares at $5.49 ($5K) on 2026-09-16, disclosed to the SEC on 2026-09-17.
Open-market sale of $5k UPB by CFO and COO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| Filing → |
| IMRA | SELL | 2023-02-22 | $46K | — | Filing → |
| IMRA | SELL | 2023-02-01 | $14K | — | Filing → |
| IMRA | SELL | 2020-12-15 | $31K | — | Filing → |