Stephen Mitchener
CIK 1774519 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 5, 2021 · Latest: Jan. 5, 2021
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 7 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
7 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 1, 2023 | KPTI | S | 6,357 | $3.03 | $19,262 | 128,313 Direct | -4.72% | Disposed | -95.6% (price as of 2026-08-19) |
| Dec. 2, 2021 | KPTI | S | 499 | $6.69 | $3,338 | 3,296 Direct | -13.15% | Disposed | -98.0% (price as of 2026-08-19) |
| June 2, 2021 | KPTI | S | 528 | $9.29 | $4,905 | 2,472 Direct | -17.60% | Disposed | -98.6% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 31, 2022 | KPTI | Stock Option (right to buy) | Common Stock (30,000) | $5.06 | Aug. 30, 2032 | 30,000 | Acquired |
| Feb. 28, 2022 | KPTI | Stock Option (right to buy) | Common Stock (59,400) | $10.33 | Feb. 27, 2032 | 59,400 | Acquired |
| May 30, 2021 | KPTI | Restricted Stock Units | Common Stock (1,500) | — | — | 1,500 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.