Karyopharm Therapeutics Inc.·4

Feb 4, 4:11 PM ET

Macomber Lori 4

4 · Karyopharm Therapeutics Inc. · Filed Feb 4, 2026

Research Summary

AI-generated summary of this filing

Updated

Karyopharm (KPTI) EVP/CFO Lori Macomber Sells 1,626 Shares

What Happened Lori Macomber, EVP, Chief Financial Officer & Treasurer of Karyopharm Therapeutics (KPTI), sold 1,626 shares in an open-market, broker-assisted transaction on February 3, 2026 at $6.30 per share, grossing $10,244. This was a sale (routine disposition) rather than a purchase.

Key Details

  • Transaction date and price: 2026-02-03, 1,626 shares at $6.30 per share (total $10,244).
  • Transaction code: S (Sale).
  • Shares owned after transaction: not specified in the provided filing excerpt.
  • Footnote: The sale was effected under a durable automatic sale instruction plan adopted by the reporting person on December 19, 2024; it was a broker-assisted sale to satisfy withholding tax liability on vested restricted stock units and was not a discretionary trade by the reporting person (Footnote F1).
  • Filing timing: Reported on February 4, 2026 for a February 3, 2026 transaction — appears filed promptly.

Context This sale was executed specifically to cover tax withholding on vested restricted stock units and was governed by an automatic, non-discretionary plan. Such sales to satisfy tax obligations are common and do not necessarily indicate the insider’s view on the company's prospects.

Insider Transaction Report

Form 4
Period: 2026-02-03
Macomber Lori
EVP, CFO & Treasurer
Transactions
  • Sale

    Common Stock

    [F1]
    2026-02-03$6.30/sh1,626$10,24485,105 total
Footnotes (1)
  • [F1]This transaction was effected pursuant to a durable automatic sale instruction plan adopted by the reporting person on December 19, 2024, and represents a broker-assisted sale of shares to satisfy the payment of withholding tax liability incurred upon the vesting of restricted stock units. The sale does not represent a discretionary trade by the reporting person.
Signature
/s/ Nancy Smith as Attorney-in-Fact for Lori Macomber|2026-02-04

Documents

1 file
  • 4
    ownership.xmlPrimary

    4