POULTON STUART

PrivateCIK: 1942597
Location

NEWTON, MA

POULTON STUART (EVP, Chief Development Officer) sold 0.2% of their position (189.00 shares) of KARYOPHARM THERAPEUTICS INC. on the open market

Open‑market sale worth $1.3K — 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
-189.00
Net shares
Net seller
$1.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
189.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

189.00

Price / share

$7.10

Trade value

$1.34K

% of position

0.2%
7/28/2026
94.82K94.63K
Total

Net shares

189.00

Net value

-$1.34K

Derivative Transactions0
No derivative transactions reported