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Zhen Su
Insider
First SEC filing: June 22, 2026 · Latest: June 22, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 17, 2026 | CTMX | A | 59,000 | · | · | 59,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2026 | KPTI | A | 15,508 | · | · | 15,508 Direct | · | Acquired | (price as of 2026-10-02) |
| June 11, 2025 | CTMX | A | 38,000 | · | · | 38,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 28, 2025 | KPTI | A | 4,600 | · | · | 4,600 Direct | · | Acquired | (price as of 2026-10-02) |
| May 29, 2024 | KPTI | A | 50,587 | · | · | 50,587 Direct | · | Acquired | (price as of 2026-10-02) |
| May 15, 2024 | CTMX | A | 38,000 | · | · | 38,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 20, 2024 | CTMX | A | 76,000 | · | · | 76,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 31, 2023 | KPTI | A | 68,000 | · | · | 68,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| June 17, 2026 | CTMX | Stock Option (Right to Buy) | Common Stock | $2.96 | June 16, 2036 | 59,000 | Acquired |
| June 11, 2025 | CTMX | Stock Option (Right to Buy) | Common Stock | $2.82 | June 10, 2035 | 38,000 | Acquired |
| May 28, 2025 | KPTI | Nonstatutory Stock Option (right to buy) | Common Stock | · | May 27, 2035 | 4,600 | Acquired |
| May 29, 2024 | KPTI | Nonstatutory Stock Option (right to buy) | Common Stock | $0.96 | May 28, 2034 | 50,587 | Acquired |
| May 15, 2024 | CTMX | Stock Option (Right to Buy) | Common Stock | $1.96 | May 14, 2034 | 38,000 | Acquired |
| March 20, 2024 | CTMX | Stock Option (Right to Buy) | Common Stock | $2.27 | March 19, 2034 | 76,000 | Acquired |
| Aug. 31, 2023 | KPTI | Nonstatutory Stock Option (right to buy) | Common Stock | $1.28 | Aug. 30, 2033 | 68,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).