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UPB Sale Disclosure
Deykin Aaron · SEC Form 4 · Filed Sep 17, 2026
Sale
Calculated transaction value
$4.91K
Deykin Aaron Chief Medical Officer
UPB
Upstream Bio
UPB
Transaction date
Sep 16, 2026
Public filing date
Sep 17, 2026
Filing lag
Filed 1 day later
UPB daily price context
Close on/before transaction
$5.33
Sep 16, 2026
First close after public filing
$5.34
Sep 18, 2026
30-day return after filing
-47.57%
Through Oct 19, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Common Stock
- Quantity / price
- 895 shares @ $5.49
- SEC ownership
- Direct
- Transaction code
- S
- Form
- 4
- Filing identifier
- 0001193125-26-394330
Filing cohort
Transactions in this filing
Showing 1 of 1
Trades
1
Issuers
1
Estimated value
$4.91K
Buys / sales
0 / 1
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Upstream Bio, Inc. UPB Current | Sale | Sep 16, 2026 | $4.91K |