| CUSIP No. 98937L105 | 13D | Page 16 of 31 Pages |
EXHIBIT 1
AGREEMENT
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of stock of Zenas BioPharma, Inc.
EXECUTED this 23rd day of September, 2024.
| SR ONE CAPITAL FUND II AGGREGATOR, LP | ||||||
| By: | SR ONE CAPITAL PARTNERS II, LP | |||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| SR ONE CAPITAL PARTNERS II, LP | ||||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| AMZL, LP | ||||||
| By: | SR ONE CAPITAL SMA PARTNERS, LP | |||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| SR ONE CAPITAL SMA PARTNERS, LP | ||||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| CUSIP No. 98937L105 | 13D | Page 17 of 31 Pages |
| SR ONE CAPITAL OPPORTUNITIES FUND I, LP | ||||||
| By: | SR ONE CAPITAL OPPORTUNITIES PARTNERS I, LP | |||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| SR ONE CAPITAL OPPORTUNITIES PARTNERS I, LP | ||||||
| By: SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
| SR ONE CAPITAL MANAGEMENT, LLC | ||||||
| By: | * | |||||
| Simeon George, M.D. | ||||||
| Managing Member | ||||||
* |
| Simeon George, M.D. |
*/s/ Sasha Keough |
| Sasha Keough |
| As attorney-in-fact |
This Agreement relating to Schedule 13D was executed by Sasha Keough on behalf of the individuals listed above pursuant to a Power of Attorney a copy of which is attached hereto as Exhibit 2.
