HOUGHTON ADAM (Chief Business Officer) sold 3.0% of their position (700.00 shares) of UPSTREAM BIO, INC. on the open market
Open‑market sale worth $3.8K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 9/17/2026ACC: 0001193125-26-394324
Officer· Chief Business Officer
Since Oct 2024
-700.00
Net shares
Net seller
$3.8K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
700.00 disposed
Non-Derivative Transactions1
Common Stock
Direct
Shares
−700.00
Price / share
$5.49
Trade value
$3.84K
% of position
3.0%
9/16/2026
23.60K→22.90K
Total
Net shares
−700.00
Net value
-$3.84K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 9/16/2026 | S · Sale | −700.00 | $5.49 | $3.84K | 3.0% | 23.60K | 22.90K |
| Total | −700.00 | -$3.84K | ||||||
Derivative Transactions0
No derivative transactions reported