Arthur Tzianabos, Interim Executive Chair of Stoke Therapeutics, Inc. ($STOK), made one open market sale of common shares in the last year, totaling $174 thousand on March 10, 2026. This ranks 8,722nd among 11,678 insiders, well below the average sale of $8.6 million over about 6.4 transactions. Tzianabos reported no open market purchases in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 10, 2026 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Interim Executive Chair | M | Stock Option (Right to Buy) | 3955 | $0.00 | 118,696.0000 | 60,397,681 | 3.22% | 0.01% |
| March 10, 2026 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Interim Executive Chair | S | Common Stock | 4355 | $40.00 | 31,339.0000 | 60,397,681 | 12.20% | 0.01% |
| March 10, 2026 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Interim Executive Chair | M | Common Stock | 3955 | $8.33 | 35,694.0000 | 60,397,681 | 12.46% | 0.01% |
| Oct. 23, 2025 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | A | Stock Option (Right to Buy) | 53521 | $0.00 | 53,521.0000 | 12,197,615 | 9999.99% | 0.44% |
| March 20, 2025 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Interim Executive Chair | A | Stock Option (Right to Buy) | 122651 | $0.00 | 122,651.0000 | 54,008,883 | 9999.99% | 0.23% |
| Feb. 24, 2025 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | D | Stock Option (Right to Buy) | 12767 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 24, 2025 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | A | Stock Option (Right to Buy) | 12767 | $0.00 | 12,767.0000 | 0 | 9999.99% | 0.00% |
| Feb. 24, 2025 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | A | Stock Option (Right to Buy) | 25674 | $0.00 | 25,674.0000 | 0 | 9999.99% | 0.00% |
| Feb. 24, 2025 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | D | Stock Option (Right to Buy) | 25674 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 25, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Common Stock | 1095 | $0.00 | 8,248.0000 | 0 | 15.31% | 0.00% |
| March 25, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | S | Common Stock | 265 | $24.20 | 7,983.0000 | 0 | 3.21% | 0.00% |
| March 25, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Restricted Stock Units | 1095 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| June 5, 2024 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Not found | A | Director Stock Option (Right to Buy) | 7639 | $0.00 | 7,639.0000 | 43,994,862 | 9999.99% | 0.02% |
| March 25, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | A | Stock Option (Right to Buy) | 12767 | $0.00 | 12,767.0000 | 0 | 9999.99% | 0.00% |
| Jan. 9, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | S | Common Stock | 13037 | $0.57 | 128,778.0000 | 0 | 9.19% | 0.00% |
| Jan. 1, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Restricted Stock Units | 14280 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 1, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Restricted Stock Units | 19140 | $0.00 | 19,720.0000 | 0 | 49.25% | 0.00% |
| Jan. 1, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Common Stock | 14280 | $0.00 | 122,675.0000 | 0 | 13.17% | 0.00% |
| Jan. 1, 2024 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | M | Common Stock | 19140 | $0.00 | 141,815.0000 | 0 | 15.60% | 0.00% |
| Feb. 13, 2024 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Not found | M | Stock Option (Right to Buy) | 31739 | $0.00 | 0.0000 | 43,994,862 | 100.00% | 0.07% |
| Feb. 13, 2024 | Stoke Therapeutics, Inc. | $STOK | TZIANABOS ARTHUR | Not found | M | Common Stock | 31739 | $2.19 | 31,739.0000 | 43,994,862 | 9999.99% | 0.07% |
| June 14, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Not found | A | Option (Right to Buy) | 23000 | $0.00 | 23,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 9, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Director | S | Common Stock | 10616 | $1.39 | 108,395.0000 | 0 | 8.92% | 0.00% |
| Jan. 1, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Director | M | Common Stock | 19140 | $0.00 | 119,011.0000 | 0 | 19.16% | 0.00% |
| Jan. 1, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Director | M | Restricted Stock Units | 13860 | $0.00 | 14,280.0000 | 0 | 49.25% | 0.00% |
| Jan. 1, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Director | M | Restricted Stock Units | 19140 | $0.00 | 38,860.0000 | 0 | 33.00% | 0.00% |
| Jan. 1, 2023 | Q32 Bio Inc. | $QTTB | TZIANABOS ARTHUR | Director | M | Common Stock | 13860 | $0.00 | 99,871.0000 | 0 | 16.11% | 0.00% |