// company-profile
Upstream Bio, Inc.
UPB// activity-summary
Recent insider activity is bullish. Over the last 30 days, 6 insiders purchased shares versus 5 sales. Buying was led by Beckman Daniella.
// 90-day insight
Over the last 90 days, Upstream Bio, Inc. insiders bought $0 (6 transactions) and sold $31K (5 transactions).
- Most active insider: Sutherland Everett Rand with 1 transaction totaling $13K.
- Largest single sale: $13K by Sutherland Everett Rand on Jun 16, 2026.
Activity is mixed — buys and sales are roughly balanced.
Institutional Ownership
Top 13F-HR holders of Upstream Bio, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 16, 2026 | Deykin Aaron | UPB | Sale | 895 | $6.10 | $5K |
| Jun 16, 2026 | Ambrose Allison | UPB | Sale | 477 | $6.10 | $3K |
| Jun 16, 2026 | GRAY MICHAEL | UPB | Sale | 853 | $6.10 | $5K |
| Jun 16, 2026 | Sutherland Everett Rand | UPB | Sale | 2,095 | $6.10 | $13K |
| Jun 16, 2026 | Houghton Adam | UPB | Sale | 700 | $6.10 | $4K |
45 more transactions hidden
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