Barrow Robert, CEO of Definium Therapeutics ($DFTX), sold shares on the open market four times over the past year, totaling about $914,000. His most recent sale occurred on December 26, 2025. These sales rank 5,135th among over 11,600 insiders in our database, where the average is 8.6 million dollars across 6.4 transactions per person. Barrow Robert made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 25, 2026 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 24431 | $18.47 | 752,454.0000 | 98,509,279 | 3.14% | 0.02% |
| Feb. 3, 2026 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | A | Common Shares | 320000 | $0.00 | 1,098,477.0000 | 98,509,279 | 41.11% | 0.32% |
| Dec. 26, 2025 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 25791 | $13.15 | 778,477.0000 | 98,509,279 | 3.21% | 0.03% |
| Sept. 25, 2025 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 25797 | $9.77 | 804,268.0000 | 75,368,359 | 3.11% | 0.03% |
| June 25, 2025 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 26491 | $6.80 | 830,065.0000 | 75,368,359 | 3.09% | 0.04% |
| March 25, 2025 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 21208 | $6.74 | 856,556.0000 | 75,368,359 | 2.42% | 0.03% |
| March 12, 2025 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | A | Common Shares | 350000 | $0.00 | 877,764.0000 | 75,368,359 | 66.32% | 0.46% |
| Dec. 26, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 19106 | $7.43 | 526,666.0000 | 0 | 3.50% | 0.00% |
| Sept. 25, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 19771 | $5.98 | 545,772.0000 | 0 | 3.50% | 0.00% |
| Aug. 19, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | P | Common Shares | 500 | $6.31 | 565,043.0000 | 0 | 0.09% | 0.00% |
| Aug. 20, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | P | Common Shares | 500 | $6.12 | 565,543.0000 | 0 | 0.09% | 0.00% |
| June 25, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 15659 | $7.22 | 564,543.0000 | 0 | 2.70% | 0.00% |
| March 25, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 16519 | $9.50 | 580,202.0000 | 0 | 2.77% | 0.00% |
| Feb. 27, 2024 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | A | Stock Option (Right to Buy) | 400000 | $0.00 | 400,000.0000 | 0 | 9999.99% | 0.00% |
| Dec. 26, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 13237 | $3.63 | 596,721.0000 | 0 | 2.17% | 0.00% |
| Sept. 25, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 8231 | $3.58 | 611,729.0000 | 0 | 1.33% | 0.00% |
| Sept. 25, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 5268 | $3.57 | 619,960.0000 | 0 | 0.84% | 0.00% |
| June 27, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 8416 | $3.21 | 623,457.0000 | 0 | 1.33% | 0.00% |
| June 27, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 7086 | $3.19 | 631,873.0000 | 0 | 1.11% | 0.00% |
| March 14, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | A | Common Shares | 400000 | $0.00 | 638,959.0000 | 0 | 167.39% | 0.00% |
| March 1, 2023 | Definium Therapeutics, Inc. | $DFTX | Barrow Robert | Chief Executive Officer | S | Common Shares | 8273 | $3.51 | 238,959.0000 | 0 | 3.35% | 0.00% |