DEYKIN AARON

PrivateCIK: 2031693
Location

WALTHAM, MA

DEYKIN AARON (Chief Medical Officer) sold 2.7% of their position (894.00 shares) of UPSTREAM BIO, INC. on the open market

Open‑market sale worth $8.3K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderDEYKIN AARONCIK 2031693
IssuerUPSTREAM BIO, INC.CIK 2022626
Officer· Chief Medical Officer
Since Oct 2024
-894.00
Net shares
Net seller
$8.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
894.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

894.00

Price / share

$9.29

Trade value

$8.31K

% of position

2.7%
3/16/2026
33.58K32.69K
Total

Net shares

894.00

Net value

-$8.31K

Derivative Transactions0
No derivative transactions reported
DEYKIN AARON — Insider Transaction (Form 4) Filed Mar 17, 2026 | Finecho