Contract
Exhibit A
The undersigned hereby agree that a single Schedule 13D (or any amendment thereto) relating to the Common Stock of Latigo Biotherapeutics, Inc. shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13D.
Date: August 17, 2026
| FORESITE CAPITAL FUND VI LP | ||
| By: | Foresite Capital Management VI, LLC | |
| Its: | General Partner | |
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| Managing Member | ||
| FORESITE CAPITAL MANAGEMENT VI, LLC | ||
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| Managing Member | ||
| FORESITE CAPITAL FUND V, L.P. | ||
| By: | Foresite Capital Management V, LLC | |
| Its: | General Partner | |
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| Managing Member | ||
| FORESITE CAPITAL MANAGEMENT V, LLC | ||
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| Managing Member | ||
| FORESITE CAPITAL OPPORTUNITY FUND V, L.P. | ||
| By: | Foresite Capital Opportunity Management V, LLC | |
| Its: | General Partner | |
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| Managing Member | ||
| FORESITE CAPITAL OPPORTUNITY MANAGEMENT V, LLC | ||
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