Richard Adcock
CEO & President at ImmunityBio Inc.
Sits on 1 board. Last updated September 27, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: ImmunityBio Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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ImmunityBio Inc. June 9, 202699.8%
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ImmunityBio Inc. June 18, 202599.2%
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ImmunityBio Inc. June 11, 202499.8%
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ImmunityBio Inc. June 13, 202399.7%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 22, 2026 | ImmunityBio Inc. | Option exercise | +152,439 | — | — |
| Feb 22, 2026 | ImmunityBio Inc. | Shares withheld for tax | −77,560 | $8.70 | $674,772 |
| Feb 10, 2026 | ImmunityBio Inc. | Option exercise | +274,122 | — | — |
| Feb 10, 2026 | ImmunityBio Inc. | Shares withheld for tax | −140,048 | $6.93 | $970,533 |
| Dec 31, 2025 | ImmunityBio Inc. | Option exercise | +34,483 | — | — |
| Dec 31, 2025 | ImmunityBio Inc. | Shares withheld for tax | −17,510 | $1.98 | $34,670 |
| Feb 22, 2025 | ImmunityBio Inc. | Option exercise | +152,439 | — | — |
| Feb 22, 2025 | ImmunityBio Inc. | Shares withheld for tax | −78,167 | $3.42 | $267,331 |
| Dec 31, 2024 | ImmunityBio Inc. | Option exercise | +34,483 | — | — |
| Dec 31, 2024 | ImmunityBio Inc. | Shares withheld for tax | −17,475 | $2.56 | $44,736 |
| Feb 5, 2024 | ImmunityBio Inc. | Option exercise | +83,334 | — | — |
| Feb 5, 2024 | ImmunityBio Inc. | Shares withheld for tax | −43,165 | $4.04 | $174,387 |
| Dec 31, 2023 | ImmunityBio Inc. | Option exercise | +34,483 | — | — |
| Dec 31, 2023 | ImmunityBio Inc. | Shares withheld for tax | −17,096 | $5.02 | $85,822 |
| Feb 5, 2023 | ImmunityBio Inc. | Option exercise | +83,333 | — | — |
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