Ruddy Marcella K., Chief Medical Officer at Tectonic Therapeutic, Inc. ($TECX), made one open market sale of company shares in the last year, totaling $300,000. Her most recent sale occurred on March 6, 2026. This places her 7,558th among 11,678 insiders in our database by sale value, well below the average of $8.6 million across about 6.4 transactions per insider. She had no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | S | Common Stock | 1000 | $31.05 | 68,747.0000 | 18,716,280 | 1.43% | 0.01% |
| March 6, 2026 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | S | Common Stock | 10000 | $30.00 | 69,747.0000 | 18,716,280 | 12.54% | 0.05% |
| March 4, 2026 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 24250 | $0.00 | 24,250.0000 | 18,716,280 | 9999.99% | 0.13% |
| March 4, 2026 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Common Stock | 26500 | $0.00 | 79,747.0000 | 18,716,280 | 49.77% | 0.14% |
| Feb. 4, 2026 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | F | Common Stock | 2064 | $23.22 | 53,247.0000 | 18,716,280 | 3.73% | 0.01% |
| Sept. 25, 2025 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 9750 | $0.00 | 9,750.0000 | 18,662,672 | 9999.99% | 0.05% |
| Sept. 25, 2025 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Common Stock | 5370 | $0.00 | 55,311.0000 | 18,662,672 | 10.75% | 0.03% |
| June 12, 2025 | Sionna Therapeutics, Inc. | $SION | Ruddy Marcella K. | Director | A | Non-Qualified Stock Option (right to buy) | 19959 | $0.00 | 19,959.0000 | 0 | 9999.99% | 0.00% |
| June 10, 2025 | Upstream Bio, Inc. | $UPB | Ruddy Marcella K. | Not found | A | Stock Option (Right to Buy) | 17096 | $0.00 | 17,096.0000 | 53,640,895 | 9999.99% | 0.03% |
| Feb. 6, 2025 | Sionna Therapeutics, Inc. | $SION | Ruddy Marcella K. | Not found | A | Stock Option (Right to Buy) | 39919 | $0.00 | 39,919.0000 | 0 | 9999.99% | 0.00% |
| Feb. 4, 2025 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 32502 | $0.00 | 32,502.0000 | 0 | 9999.99% | 0.00% |
| Feb. 4, 2025 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Common Stock | 17876 | $0.00 | 49,941.0000 | 0 | 55.75% | 0.00% |
| Oct. 10, 2024 | Upstream Bio, Inc. | $UPB | Ruddy Marcella K. | Not found | A | Stock Option (Right to Buy) | 17096 | $0.00 | 17,096.0000 | 0 | 9999.99% | 0.00% |
| June 20, 2024 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 18704 | $0.00 | 18,704.0000 | 0 | 9999.99% | 0.00% |
| June 20, 2024 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 43946 | $0.00 | 43,946.0000 | 0 | 9999.99% | 0.00% |
| June 20, 2024 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Common Stock | 32065 | $0.00 | 32,065.0000 | 0 | 9999.99% | 0.00% |
| June 20, 2024 | Tectonic Therapeutic, Inc. | $TECX | Ruddy Marcella K. | Chief Medical Officer | A | Employee Stock Option (Right to Buy) | 81700 | $0.00 | 81,700.0000 | 0 | 9999.99% | 0.00% |