There are no significant Insider Shareholders in Design Therapeutics as of December 12, 2025.
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Simeon George | 6,526,476 | 20 Dec, 2022 | |
| One Capital Fund I Aggregator Lp Sr | 6,526,476 | 20 Dec, 2022 | |
| Asset Management, Lp Cormorant | 5,114,844 | 01 Apr, 2021 | |
| Venture Fund Ii, L.P. Quan | 4,720,830 | 01 Apr, 2021 | |
| Stella Xu | 4,129,950 | 22 Mar, 2022 | |
| Arsani William | 1,000,000 | 14 Aug, 2025 | |
| Pratik Shah | Executive Chairperson | 154,923 | 01 Apr, 2021 |
| Rodney W Lappe | 133,024 | 02 Oct, 2023 | |
| Joao Md Siffert | President And CEO | 132,619 | 21 Dec, 2022 |
| John P. Schmid | 39,830 | 25 Mar, 2024 | |
| Deepa Prasad | 20,000 | 19 Dec, 2024 | |
| Justin Thacker | Vice President And Finance | 17,500 | 31 Mar, 2021 |
| Sean Jeffries | Chief Operating Officer | 3,050 | 31 Mar, 2021 |
| Heather A. Berger | 1,300 | 25 Mar, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Aug, 2025 | Arsani William | Common Stock | D | 345,000 | $5.25 | 2,655,000 | I | S |
| 13 Aug, 2025 | Arsani William | Common Stock | D | 217,627 | $5.25 | 1,000,000 | I | S |
| 18 Dec, 2024 | Deepa Prasad | Common Stock | D | 3,806 | $6.27 | 20,000 | D | S |
| 18 Dec, 2024 | Deepa Prasad | - | - | 20,000 | D | |||
| 09 Aug, 2024 | Arsani William | - | - | 0 | I | |||
| 09 Aug, 2024 | Arsani William | Common Stock | D | 814,874 | $4.25 | 0 | I | S |
| 25 Mar, 2024 | Heather A. Berger | - | - | 1,300 | D | |||
| 25 Mar, 2024 | Heather A. Berger | Common Stock | A | 1,300 | $3.74 | 1,300 | D | P |
| 22 Mar, 2024 | John P. Schmid | - | - | 30,674 | D | |||
| 22 Mar, 2024 | John P. Schmid | Common Stock | A | 9,156 | $3.62 | 30,674 | D | P |
| 25 Mar, 2024 | John P. Schmid | Common Stock | A | 17,809 | $3.74 | 9,156 | I | P |
| 25 Mar, 2024 | John P. Schmid | - | - | 9,156 | I | |||
| 29 Sep, 2023 | Rodney W Lappe | Common Stock | A | 21,000 | $2.35 | 133,024 | D | P |
| 29 Sep, 2023 | Rodney W Lappe | - | - | 133,024 | D | |||
| 29 Aug, 2023 | Deepa Prasad | - | - | 23,806 | D | |||
| 29 Aug, 2023 | Deepa Prasad | Common Stock | A | 12,000 | $2.31 | 23,806 | D | P |
| 28 Aug, 2023 | Arsani William | Common Stock | A | 275,000 | $2.15 | 1,040,000 | I | P |
| 28 Aug, 2023 | Arsani William | - | - | 1,040,000 | I | |||
| 29 Aug, 2023 | Arsani William | Common Stock | A | 1,960,000 | $2.44 | 3,000,000 | I | P |
| 29 Aug, 2023 | Arsani William | - | - | 3,000,000 | I |