POULTON STUART

PrivateCIK: 1942597
Location

NEWTON, MA

POULTON STUART (EVP, Chief Development Officer) sold 0.4% of their position (378.00 shares) of KARYOPHARM THERAPEUTICS INC. on the open market

Open‑market sale worth $3.3K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderPOULTON STUARTCIK 1942597
Officer· EVP, Chief Development Officer
Since Mar 2026
-378.00
Net shares
Net seller
$3.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
378.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

378.00

Price / share

$8.63

Trade value

$3.26K

% of position

0.4%
2/17/2026
99.81K99.43K
Total

Net shares

378.00

Net value

-$3.26K

Derivative Transactions0
No derivative transactions reported
POULTON STUART — Insider Transaction (Form 4) Filed Feb 19, 2026 | Finecho