Michael Bookman
First SEC filing: Jan. 26, 2021 · Latest: Jan. 26, 2021
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 3, 2026 | IMRX | A | 176,000 | · | · | 176,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 1, 2025 | IMRX | P | 1,020 | $6.83 | $6,967 | 4,870 Direct | +26.49% | Acquired | -40.4% (price as of 2026-10-02) |
| Feb. 5, 2025 | IMRX | A | 110,000 | · | · | 110,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | D | 101,116 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | A | 101,116 | · | · | 101,116 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | D | 47,300 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | A | 47,300 | · | · | 47,300 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | D | 143,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | A | 143,000 | · | · | 143,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | D | 93,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 21, 2024 | IMRX | A | 93,000 | · | · | 93,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | IMRX | A | 1,448 | $1.62 | $2,346 | 3,850 Direct | +60.28% | Acquired | 151.2% (price as of 2026-10-02) |
| Feb. 8, 2024 | IMRX | A | 93,000 | · | · | 93,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | IMRX | A | 143,000 | · | · | 143,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | IMRX | P | 1,000 | $4.88 | $4,880 | 2,402 Direct | +71.33% | Acquired | -16.6% (price as of 2026-10-02) |
| Feb. 10, 2022 | IMRX | A | 47,300 | · | · | 47,300 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 3, 2021 | IMRX | P | 1,402 | $15.00 | $21,030 | 1,402 Direct | · | Acquired | -72.9% (price as of 2026-10-02) |
| July 29, 2021 | IMRX | A | 101,116 | · | · | 101,116 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| April 20, 2021 | KRRO | A | 30,000 | · | · | 30,000 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 |
|---|---|---|---|---|---|---|---|
| Feb. 3, 2026 | IMRX | Stock Option | Class A Common Stock | $4.91 | Feb. 3, 2036 | 176,000 | Acquired |
| Feb. 5, 2025 | IMRX | Stock Option | Class A Common Stock | $1.91 | Feb. 5, 2035 | 110,000 | Acquired |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $15.00 | July 28, 2031 | 101,116 | Disposed |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $3.01 | July 28, 2031 | 101,116 | Acquired |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $9.66 | Feb. 9, 2032 | 47,300 | Disposed |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $3.01 | Feb. 9, 2032 | 47,300 | Acquired |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $4.25 | Feb. 15, 2033 | 143,000 | Disposed |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $3.01 | Feb. 15, 2033 | 143,000 | Acquired |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $6.09 | Feb. 8, 2034 | 93,000 | Disposed |
| May 21, 2024 | IMRX | Stock Option | Class A Common Stock | $3.01 | Feb. 8, 2034 | 93,000 | Acquired |
| Feb. 8, 2024 | IMRX | Stock Option | Class A Common Stock | $6.09 | Feb. 8, 2034 | 93,000 | Acquired |
| Feb. 15, 2023 | IMRX | Stock Option | Class A Common Stock | $4.25 | Feb. 15, 2033 | 143,000 | Acquired |
| Feb. 10, 2022 | IMRX | Stock Option | Class A Common Stock | $9.66 | Feb. 9, 2032 | 47,300 | Acquired |
| July 29, 2021 | IMRX | Stock Option | Class A Common Stock | $15.00 | July 28, 2031 | 101,116 | Disposed |
| April 20, 2021 | KRRO | Restricted Stock Unit | Common Stock | · | · | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $502,089 | $241,003 | · | $132,803 | · | · | $14,468 | $890,362 |
| 2024 | $482,778 | $193,111 | · | $398,393 | · | · | $14,070 | $1,088,351 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.