Company: CSTL
Filing Date: 2025-03-28
Form Type: PRE 14A
Source: 0001447362-25-000050
Chunk: 80

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-03-28
Form: PRE 14A
Chunk 80
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     |                                                                                           |    506,415 |     |    |     |                                                                                               |   506,415 |     |    |
| Bonus severance                           |     |         — |            |                                 |         — |     |                                                                                           |    322,176 |     |    |     |                                                                                               |   278,528 |     |    |
| Vacation payout                           |     |         — |            |                                 |         — |     |                                                                                           |    273,131 |     |    |     |                                                                                               |   273,131 |     |    |
| COBRA payments                            |     |         — |            |                                 |         — |     |                                                                                           |     22,187 |     |    |     |                                                                                               |    22,238 |     |    |
| Stock option and RSU acceleration(1)      |     |         — |            |                                 |         — |     |                                                                                           |  2,487,378 |     |    |     |                                                                                               |   589,791 |     |    |
| Performance-vesting award acceleration(1) |     |         — |            |                                 |         — |     |                                                                                           |    774,289 |     | -2 |     |                                                                                               |   111,869 |     | -3 |
| Total Estimated Value                     |     |         — |            |                                 |         — |     |                                                                                           |  4,385,576 |     |    |     |                                                                                               | 1,781,972 |     |    |

(1) For each of the applicable outstanding unvested equity award, the dollar amount is calculated as the excess, if any, of the closing price of our common stock on December 31, 2024 ($26.65 per share) over the option exercise price, multiplied by the number of shares underlying the option, and (ii) the closing price of our common stock on December 31, 2024, multiplied by the number of RSUs or PSUs expected to accelerate vest.

#### Castle Biosciences 2025 Proxy Statement73

#### Executive Compensation Tables
(2) In connection with a change in control, any performance-vesting award will accelerate vesting at 100% of the target level of performance as of the date of covered termination.

(3) In connection with a non-change in control, a prorated number of shares