Christopher Ogden
Insider
First SEC filing: March 9, 2022 · Latest: June 17, 2026
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-129,007
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | CTMX | S | 1,624 | $3.05 | $4,953 | 295,324 Direct | -0.55% | Disposed | -16.1% (price as of 2026-10-02) |
| March 17, 2026 | CTMX | S | 19,323 | $6.42 | $124,054 | 296,948 Direct | -6.11% | Disposed | -60.1% (price as of 2026-10-02) |
| Feb. 2, 2026 | CTMX | A | 90,000 | · | · | 316,271 Direct | +39.78% | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2026 | CTMX | A | 325,000 | · | · | 325,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2025 | CTMX | A | 78,250 | · | · | 78,250 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2025 | CTMX | A | 39,150 | · | · | 39,150 Direct | · | Acquired | (price as of 2026-10-02) |
| June 16, 2025 | CTMX | S | 10,614 | $2.69 | $28,552 | 226,271 Direct | -4.48% | Disposed | -4.8% (price as of 2026-10-02) |
| June 13, 2025 | CTMX | S | 1,641 | $2.95 | $4,841 | 199,385 Direct | -0.82% | Disposed | -13.2% (price as of 2026-10-02) |
| June 13, 2025 | CTMX | M | 37,500 | · | · | 236,885 Direct | +18.81% | Acquired | (price as of 2026-10-02) |
| June 13, 2025 | CTMX | M | 37,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 18, 2025 | CTMX | S | 8,551 | $0.60 | $5,131 | 201,026 Direct | -4.08% | Disposed | 326.7% (price as of 2026-10-02) |
| Feb. 4, 2025 | CTMX | A | 44,000 | · | · | 152,077 Direct | +40.71% | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2025 | CTMX | A | 57,500 | · | · | 209,577 Direct | +37.81% | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2025 | CTMX | A | 225,000 | · | · | 225,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2025 | CTMX | A | 115,000 | · | · | 115,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 20, 2024 | CTMX | M | 6,875 | · | · | 110,061 Direct | +6.66% | Acquired | (price as of 2026-10-02) |
| Aug. 20, 2024 | CTMX | S | 1,984 | $1.23 | $2,440 | 108,077 Direct | -1.80% | Disposed | 108.1% (price as of 2026-10-02) |
| Aug. 20, 2024 | CTMX | M | 6,875 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 12, 2024 | CTMX | A | 17,500 | · | · | 103,186 Direct | +20.42% | Acquired | (price as of 2026-10-02) |
| June 12, 2024 | CTMX | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 19, 2024 | CTMX | S | 2,971 | $2.09 | $6,209 | 85,686 Direct | -3.35% | Disposed | 22.5% (price as of 2026-10-02) |
| Jan. 18, 2024 | CTMX | A | 40,000 | · | · | 88,657 Direct | +82.21% | Acquired | (price as of 2026-10-02) |
| Jan. 18, 2024 | CTMX | A | 154,000 | · | · | 154,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 18, 2024 | CTMX | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2023 | CTMX | S | 1,990 | $1.38 | $2,746 | 48,657 Direct | -3.93% | Disposed | 85.5% (price as of 2026-10-02) |
| Dec. 17, 2023 | CTMX | M | 6,875 | · | · | 50,647 Direct | +15.71% | Acquired | (price as of 2026-10-02) |
| Dec. 17, 2023 | CTMX | M | 6,875 | · | · | 6,875 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| March 16, 2023 | CTMX | S | 516 | $1.98 | $1,022 | 37,772 Direct | -1.35% | Disposed | 29.3% (price as of 2026-10-02) |
| Feb. 2, 2023 | CTMX | A | 25,000 | · | · | 38,288 Direct | +188.14% | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2023 | CTMX | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2023 | CTMX | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 10, 2022 | CTMX | A | 82,500 | · | · | 82,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 10, 2022 | CTMX | A | 13,750 | · | · | 13,750 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 |
|---|---|---|---|---|---|---|---|
| Feb. 2, 2026 | CTMX | Stock Option (Right to Buy) | Common Stock | $6.09 | Feb. 1, 2036 | 325,000 | Acquired |
| Sept. 26, 2025 | CTMX | Stock Option (Right to Buy) | Common Stock | $2.90 | Sept. 25, 2035 | 78,250 | Acquired |
| Sept. 26, 2025 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 39,150 | Acquired |
| June 13, 2025 | CTMX | Performance Stock Units | Common Stock | · | · | 37,500 | Disposed |
| Feb. 4, 2025 | CTMX | Stock Option (Right to Buy) | Common Stock | $0.86 | Feb. 3, 2035 | 225,000 | Acquired |
| Feb. 4, 2025 | CTMX | Stock Option (Right to Buy) | Common Stock | $0.86 | Feb. 3, 2035 | 115,000 | Acquired |
| Aug. 20, 2024 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 6,875 | Disposed |
| June 12, 2024 | CTMX | Stock Option (Right to Buy) | Common Stock | $1.49 | June 11, 2034 | 75,000 | Acquired |
| Jan. 18, 2024 | CTMX | Stock Option (Right to Buy) | Common Stock | $1.68 | Jan. 17, 2034 | 154,000 | Acquired |
| Jan. 18, 2024 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 75,000 | Acquired |
| Dec. 17, 2023 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 6,875 | Disposed |
| Feb. 2, 2023 | CTMX | Stock Option (Right to Buy) | Common Stock | $2.59 | Feb. 1, 2033 | 75,000 | Acquired |
| Feb. 2, 2023 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 75,000 | Acquired |
| Aug. 10, 2022 | CTMX | Stock Option (Right to Buy) | Common Stock | $1.59 | Aug. 9, 2032 | 82,500 | Acquired |
| Aug. 10, 2022 | CTMX | Performance Stock Units (PSUs) | Common Stock | · | · | 13,750 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.