POULTON STUART

PrivateCIK: 1942597
Location

NEWTON, MA

POULTON STUART (EVP, Chief Development Officer) sold 5.1% of their position (5.10K shares) of KARYOPHARM THERAPEUTICS INC. on the open market

Open‑market sale worth $48.0K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderPOULTON STUARTCIK 1942597
Officer· EVP, Chief Development Officer
Since Mar 2026
-5.10K
Net shares
Net seller
$48.0K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
5.10K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

5.10K

Price / share

$9.41

Trade value

$48K

% of position

5.1%
3/2/2026
99.43K94.33K
Total

Net shares

5.10K

Net value

-$48K

Derivative Transactions0
No derivative transactions reported
POULTON STUART — Insider Transaction (Form 4) Filed Mar 3, 2026 | Finecho