| Accession Number: | 0001728117-21-000078 |
| Date: | 2021-06-21 |
| Issuer: | GOSSAMER BIO, INC. (GOSS) |
| Original Submission Date: |
ARANDA RICHARD
3013 SCIENCE PARK ROAD
SAN DIEGO, CA 92121
| Title of Security | Transaction Date | 2a. Deemed Execution Date | Transaction Code | Shares | Acquired or Disposed | Price per share | 5. Amount of Securities Beneficially Owned Following Reported Transaction | 6. Ownership Form Direct or Indirect | Nature of Indirect Ownership |
|---|---|---|---|---|---|---|---|---|---|
| COMMON STOCK | 2021-06-21 | A | 15,000 | a | $0.00 | 219,809 | direct |
| Title of Derivative Security | Conversion or Exercise Price of Derivative Security | Transaction Date | Deemed Execution Date | Transaction Code | Number of Derivative Securities Acquired (A) or Disposed of (D) | Date Exercisable | Expiration Date | Title and Amount of Securities Underlying Derivative Security | Price of Derivative Security | Number of derivative Securities Beneficially Owned Following Reported Transaction(s) | Ownership Form: Direct (D) or Indirect (I) | Nature of Indirect Beneficial Ownership |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STOCK OPTION (RIGHT TO BUY) | 8.47 | 2021-06-21 | deemed execution date | A | 30,000 (a) | 2031-06-21 | common stock 30,000 | $8.47 | 30,000 | direct |
| ID | footnote |
|---|---|
| f1 | represents a restricted stock unit award, which will vest in three equal annual installments in accordance with the terms of the award and subject to the reporting person's continuous service to the issuer on each vesting date. |
| f2 | 25% of the total number of shares subject to the option will vest on june 21, 2022 and 1/48th of the total number of shares subject to the option vest on the last day of each one-month period thereafter, subject to the reporting person's continuous service to the issuer on each such vesting date. |
