Design Therapeutics, Inc.
DSGN- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001807120
No open-market purchases or sales by Design Therapeutics, Inc. insiders were filed in the last 90 days; 136 institutions reported holding it in 13F filings for Q2 2026, worth $626.4M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Design Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Design Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Schmid John P. | Director | 26,965Indirect | Jun 11, 2026 | 1 |
| Shapiro David | Director | – | Jun 11, 2026 | 2 |
| Lappe Rodney W | Director | 133,024 | Jun 11, 2026 | 1 |
| George Simeon | Director, 10% Owner | 6,526,476Indirect | Jun 11, 2026 | 1 |
| Behanna Heather | Director | 1,300 | Jun 11, 2026 | 1 |
| Gover Justin D. | Director | – | Jun 11, 2026 | 2 |
| Shah Pratik | President, CEO and Chairperson | – | Jan 5, 2026 | 2 |
| Storgard Chris | Chief Medical Officer | – | Jan 5, 2026 | 1 |
| Jeffries Sean | Chief Operating Officer | – | Jan 5, 2026 | 1 |
| Burgess Julie | Chief Accounting Officer | – | Jan 5, 2026 | 1 |
| William Arsani | Director | 1,000,000Indirect | Aug 14, 2025 | 0 |
| Prasad Deepa | Director | 20,000 | Jun 12, 2025 | 0 |
| Ansari Aseem Z. | 10% Owner | – | Dec 5, 2023 | 0 |
| Xu Stella | Director | 4,129,950Indirect | Jun 2, 2023 | 0 |
| Siffert Joao MD | President and CEO | 132,619 | Feb 3, 2023 | 0 |
| SR One Capital Fund I Aggregator LP | 10% Owner | 6,526,476 | Dec 20, 2022 | 0 |
| Sr One Capital Management, LLC | 10% Owner | 6,526,476 | Dec 20, 2022 | 0 |
| Sr One Capital Partners I, LP | 10% Owner | 6,526,476 | Dec 20, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 14, 2025 (view filing) | Aug 13 | 1 day | William ArsaniDirector | SSale | −562.6K | $5.25 | −$2.95M | −36.0%1.00M after | 2 lots |
| Dec 19, 2024 (view filing) | Dec 18 | 1 day | Prasad DeepaDirector | SSale | −3.81K | $6.27 | −$23.9K | −16.0%20.0K after | |
| Aug 12, 2024 (view filing) | Aug 9 | 3 days | William ArsaniDirector | SSale | −814.9K | $4.25 | −$3.46M | −100.0%0 after | |
| Mar 25, 2024 (view filing) | Mar 22-25 | 3 days | Schmid John P.Director | PPurchase | +27.0K | $3.70 | +$99.8K | New position27.0K after | 2 lots |
| Mar 25, 2024 (view filing) | Mar 25 | Same day | Behanna HeatherDirector | PPurchase | +1.30K | $3.74 | +$4.86K | New position1.30K after | |
| Oct 2, 2023 (view filing) | Sep 29 | 3 days | Lappe Rodney WDirector | PPurchase | +21.0K | $2.35 | +$49.4K | +18.7%133.0K after | |
| Sep 6, 2023 (view filing) | Mar 30, 2021 | 890 days | William ArsaniDirector | PPurchase | +700.0K | $20.00 | +$14.0M | New position700.0K after | Amended |
| Aug 30, 2023 (view filing) | Aug 29 | 1 day | Prasad DeepaDirector | PPurchase | +12.0K | $2.31 | +$27.7K | +101.6%23.8K after | |
| Aug 30, 2023 (view filing) | Aug 28-29 | 2 days | William ArsaniDirector | PPurchase | +2.23M | $2.40 | +$5.37M | +292.2%3.00M after | 2 lots |
| Dec 21, 2022 (view filing) | Dec 19-20 | 2 days | Siffert Joao MDPresident and CEO | PPurchase | +7.45K | $8.39 | +$62.5K | +6.0%132.6K after | 2 lots |
| Dec 20, 2022 (view filing)6:37 PM ET | Dec 16-20 | 4 days | SR One Capital Fund I Aggregator LP and 2 others10% Owner | PPurchase | +900.0K | $8.42 | +$7.57M | +16.0%6.53M after | 3 lots |
| Dec 20, 2022 (view filing) | Dec 16-20 | 4 days | George SimeonDirector, 10% Owner | PPurchase | +900.0K | $8.41 | +$7.57M | +16.0%6.53M after | 3 lots |
| Dec 12, 2022 (view filing) | Dec 9 | 3 days | Lappe Rodney WDirector | PPurchase | +15.0K | $7.96 | +$119.4K | +15.5%112.0K after | |
| Mar 22, 2022 (view filing) | Mar 21 | 1 day | William ArsaniDirector | PPurchase | +25.0K | $18.99 | +$474.8K | +0.9%2.80M after | |
| Mar 22, 2022 (view filing) | Mar 18-22 | 4 days | Xu StellaDirector | SSale | −590.9K | $19.07 | −$11.3M | −12.5%4.13M after | 4 lots |
| Sep 2, 2021 (view filing) | Aug 31 | 2 days | William ArsaniDirector | PPurchase | +40.0K | $15.45 | +$618.0K | +1.5%2.77M after |