Robert E. George
Insider
First SEC filing: May 24, 2019 · Latest: May 24, 2019
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 12, 2025 | MBRX | A | 150,000 | · | · | 165,336 Direct | +978.09% | Acquired | (price as of 2026-10-02) |
| Nov. 4, 2024 | MBRX | A | 10,000 | · | · | 15,336 Direct | +187.41% | Acquired | (price as of 2026-10-02) |
| Dec. 26, 2023 | MBRX | P | 14,493 | $0.69 | $10,000 | 14,660 Direct | +8678.44% | Acquired | -99.8% (price as of 2026-10-02) |
| May 25, 2023 | MBRX | A | 15,000 | · | · | 80,001 Direct | +23.08% | Acquired | (price as of 2026-10-02) |
| June 20, 2022 | MBRX | A | 23,333 | · | · | 50,001 Direct | +87.49% | Acquired | (price as of 2026-10-02) |
| June 20, 2022 | MBRX | A | 15,000 | · | · | 65,001 Direct | +30.00% | Acquired | (price as of 2026-10-02) |
| June 7, 2021 | MBRX | A | 10,000 | · | · | 26,668 Direct | +60.00% | Acquired | (price as of 2026-10-02) |
| June 15, 2020 | MBRX | A | 15,000 | · | · | 100,000 Direct | +17.65% | Acquired | (price as of 2026-10-02) |
| July 11, 2019 | MBRX | A | 35,000 | · | · | 120,000 Direct | +41.18% | Acquired | (price as of 2026-10-02) |
| May 22, 2019 | MBRX | A | 15,000 | · | · | 85,000 Direct | +21.43% | Acquired | (price as of 2026-10-02) |
| June 6, 2018 | MBRX | A | 35,000 | · | · | 70,000 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| July 24, 2017 | MBRX | A | 15,000 | · | · | 35,000 Direct | +75.00% | Acquired | (price as of 2026-10-02) |
| April 28, 2017 | MBRX | P | 1,000 | $0.94 | $940 | 1,000 Direct | · | Acquired | -100.0% (price as of 2026-10-02) |
| Sept. 23, 2016 | MBRX | A | 20,000 | · | · | 20,000 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 |
|---|---|---|---|---|---|---|---|
| Nov. 12, 2025 | MBRX | Stock Options (right to buy) | Common Stock | $0.49 | Nov. 12, 2035 | 150,000 | Acquired |
| Nov. 4, 2024 | MBRX | Stock option (right to buy) | Common Stock | $2.45 | Nov. 4, 2034 | 10,000 | Acquired |
| May 25, 2023 | MBRX | Stock option (right to buy) | Common Stock | $0.62 | May 25, 2033 | 15,000 | Acquired |
| June 20, 2022 | MBRX | Stock option (right to buy) | Common Stock | $1.49 | June 20, 2032 | 23,333 | Acquired |
| June 20, 2022 | MBRX | Stock option (right to buy) | Common Stock | $1.49 | June 20, 2032 | 15,000 | Acquired |
| June 7, 2021 | MBRX | Stock option (right to buy) | Common Stock | $3.95 | June 7, 2031 | 10,000 | Acquired |
| June 15, 2020 | MBRX | Stock option (right to buy) | Common Stock | $1.12 | June 16, 2030 | 15,000 | Acquired |
| July 11, 2019 | MBRX | Stock option (right to buy) | Common Stock | $1.31 | July 11, 2029 | 35,000 | Acquired |
| May 22, 2019 | MBRX | Stock option (right to buy) | Common Stock | $1.15 | May 22, 2029 | 15,000 | Acquired |
| June 6, 2018 | MBRX | Stock option (right to buy) | Common Stock | $1.82 | June 6, 2028 | 35,000 | Acquired |
| July 24, 2017 | MBRX | Option to purchase common stock | Common Stock | $1.87 | July 24, 2027 | 15,000 | Acquired |
| Sept. 23, 2016 | MBRX | Option to purchase common stock | Common Stock | $5.71 | Sept. 23, 2026 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).