Jacquelyn L. Sumer, Chief Legal Officer of Cullinan Therapeutics ($CGEM), sold shares on the open market three times over the past year for a total of $136,724. Her latest sale occurred on February 24, 2026. These CGEM insider sales rank her 9,129th out of 11,678 individuals, far below the average of $8.6 million per seller across 6.4 transactions. She reported no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 24, 2026 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 3601 | $14.47 | 128,089.0000 | 59,076,259 | 2.73% | 0.01% |
| Feb. 20, 2026 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 3742 | $13.62 | 131,690.0000 | 59,076,259 | 2.76% | 0.01% |
| Feb. 18, 2026 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Stock Option (Right to Buy) | 230000 | $0.00 | 230,000.0000 | 59,076,259 | 9999.99% | 0.39% |
| Dec. 18, 2025 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 3480 | $9.67 | 135,432.0000 | 59,076,259 | 2.51% | 0.01% |
| Feb. 25, 2025 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 3756 | $8.53 | 136,895.0000 | 58,510,610 | 2.67% | 0.01% |
| Feb. 19, 2025 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Common Stock | 50000 | $0.00 | 140,651.0000 | 58,510,610 | 55.16% | 0.09% |
| Feb. 19, 2025 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Stock Option (Right to Buy) | 100000 | $0.00 | 100,000.0000 | 58,510,610 | 9999.99% | 0.17% |
| Dec. 18, 2024 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 3482 | $11.41 | 90,651.0000 | 42,900,083 | 3.70% | 0.01% |
| Feb. 22, 2024 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Stock Option (Right to Buy) | 100000 | $0.00 | 100,000.0000 | 42,900,083 | 9999.99% | 0.23% |
| Feb. 22, 2024 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Common Stock | 50000 | $0.00 | 94,133.0000 | 42,900,083 | 113.29% | 0.12% |
| Dec. 21, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 1400 | $8.50 | 44,133.0000 | 0 | 3.07% | 0.00% |
| Dec. 18, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 290 | $8.22 | 45,533.0000 | 0 | 0.63% | 0.00% |
| June 20, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 291 | $12.94 | 45,823.0000 | 0 | 0.63% | 0.00% |
| May 18, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 291 | $8.76 | 46,114.0000 | 0 | 0.63% | 0.00% |
| April 18, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 290 | $10.71 | 46,405.0000 | 0 | 0.62% | 0.00% |
| March 20, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | S | Common Stock | 305 | $11.32 | 46,695.0000 | 0 | 0.65% | 0.00% |
| Feb. 17, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Stock Option (Right to Buy) | 93500 | $0.00 | 93,500.0000 | 0 | 9999.99% | 0.00% |
| Feb. 17, 2023 | Cullinan Therapeutics, Inc. | $CGEM | SUMER JACQUELYN L | Chief Legal Officer | A | Common Stock | 47000 | $0.00 | 47,000.0000 | 0 | 9999.99% | 0.00% |