Aranda Richard has filed 47 insider transactions across 1 company since March 2023.
Most recent transaction: a disposition of 126667 shares of Gossamer Bio, Inc. ($GOSS) on March 19, 2026.
Activity breakdown: 0 open-market purchases and 4 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 126667 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.05% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 562500 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.24% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 572000 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.25% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 487500 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.21% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 162500 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 157500 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 157500 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 20000 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.01% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 40000 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.02% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 22784 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.01% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 9167 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.00% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 30000 | $0.00 | 0.0000 | 231,456,247 | 100.00% | 0.01% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 562500 | $0.00 | 562,500.0000 | 231,456,247 | 9999.99% | 0.24% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 572000 | $0.00 | 572,000.0000 | 231,456,247 | 9999.99% | 0.25% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 487500 | $0.00 | 487,500.0000 | 231,456,247 | 9999.99% | 0.21% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 162500 | $0.00 | 162,500.0000 | 231,456,247 | 9999.99% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 157500 | $0.00 | 157,500.0000 | 231,456,247 | 9999.99% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 157500 | $0.00 | 157,500.0000 | 231,456,247 | 9999.99% | 0.07% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 126667 | $0.00 | 126,667.0000 | 231,456,247 | 9999.99% | 0.05% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 20000 | $0.00 | 20,000.0000 | 231,456,247 | 9999.99% | 0.01% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 40000 | $0.00 | 40,000.0000 | 231,456,247 | 9999.99% | 0.02% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 22784 | $0.00 | 22,784.0000 | 231,456,247 | 9999.99% | 0.01% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 9167 | $0.00 | 9,167.0000 | 231,456,247 | 9999.99% | 0.00% |
| March 19, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 30000 | $0.00 | 30,000.0000 | 231,456,247 | 9999.99% | 0.01% |
| Jan. 2, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 562500 | $0.00 | 562,500.0000 | 231,456,247 | 9999.99% | 0.24% |
| Jan. 2, 2026 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Common Stock | 93750 | $0.00 | 465,645.0000 | 231,456,247 | 25.21% | 0.04% |
| Oct. 1, 2025 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Common Stock | 162500 | $0.00 | 371,895.0000 | 227,221,261 | 77.60% | 0.07% |
| March 4, 2025 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 572000 | $0.00 | 572,000.0000 | 0 | 9999.99% | 0.00% |
| June 24, 2024 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | S | Common Stock | 1908 | $0.66 | 199,430.0000 | 0 | 0.95% | 0.00% |
| March 18, 2024 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | S | Common Stock | 4018 | $1.33 | 198,799.0000 | 0 | 1.98% | 0.00% |
| Jan. 2, 2024 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 487500 | $0.00 | 487,500.0000 | 0 | 9999.99% | 0.00% |
| Nov. 20, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 162500 | $0.00 | 162,500.0000 | 0 | 9999.99% | 0.00% |
| June 22, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | S | Common Stock | 1814 | $1.29 | 200,113.0000 | 0 | 0.90% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 126667 | $0.00 | 126,667.0000 | 0 | 9999.99% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 40000 | $0.00 | 40,000.0000 | 0 | 9999.99% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 20000 | $0.00 | 20,000.0000 | 0 | 9999.99% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 45000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 13750 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 34175 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 60000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 30000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | D | Stock Option (Right to Buy) | 190000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 30000 | $0.00 | 30,000.0000 | 0 | 9999.99% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 9167 | $0.00 | 9,167.0000 | 0 | 9999.99% | 0.00% |
| May 5, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 22784 | $0.00 | 22,784.0000 | 0 | 9999.99% | 0.00% |
| March 20, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | A | Stock Option (Right to Buy) | 157500 | $0.00 | 157,500.0000 | 0 | 9999.99% | 0.00% |
| March 16, 2023 | Gossamer Bio, Inc. | $GOSS | Aranda Richard | Chief Medical Officer | S | Common Stock | 7563 | $1.10 | 201,927.0000 | 0 | 3.61% | 0.00% |