Design Therapeutics, Inc.
Design Therapeutics, Inc. (DSGN) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · DSGN · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
2
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Design Therapeutics, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
DSGN insider buying and selling by quarter
DSGN insider selling · DSGN insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · DSGN ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
DSGN executive sell shares · DSGN board member insider trading · DSGN insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Aug 13, 2025 | William Arsani Director | Sale | 345,000 | $1.81M⚡ | Form 4 |
| Aug 13, 2025 | William Arsani Director | Sale | 217,627 | $1.14M⚡ | Form 4 |
| Dec 18, 2024 | Prasad Deepa Director | Sale | 3,806 | $24K | Form 4 |
| Aug 9, 2024 | William Arsani Director | Sale | 814,874 | $3.46M⚡ | Form 4 |
| Mar 25, 2024 | Schmid John P. Director | Purchase | 17,809 | $67K | Form 4 |
| Mar 22, 2024 | Schmid John P. Director | Purchase | 9,156 | $33K | Form 4 |
| Mar 25, 2024 | Berger Heather A. Director | Purchase | 1,300 | $5K | Form 4 |
| Sep 29, 2023 | LAPPE RODNEY W Director | Purchase | 21,000 | $49K | Form 4 |
| Aug 29, 2023 | Prasad Deepa Director | Purchase | 12,000 | $28K | Form 4 |
| Aug 29, 2023 | William Arsani Director | Purchase | 1,960,000 | $4.78M⚡ | Form 4 |
| Aug 28, 2023 | William Arsani Director | Purchase | 275,000 | $591K | Form 4 |
| Dec 20, 2022 | Siffert Joao MD President and CEO | Purchase | 6,300 | $53K | Form 4 |
| Dec 19, 2022 | Siffert Joao MD President and CEO | Purchase | 1,150 | $10K | Form 4 |
| Dec 20, 2022 | George Simeon Director | Purchase | 40,000 | $325K | Form 4 |
| Dec 19, 2022 | George Simeon Director | Purchase | 360,000 | $3.11M⚡ | Form 4 |
| Dec 16, 2022 | George Simeon Director | Purchase | 500,000 | $4.14M⚡ | Form 4 |
| Dec 20, 2022 | SR One Capital Fund I Aggregator LP Director | Purchase | 40,000 | $325K | Form 4 |
| Dec 19, 2022 | SR One Capital Fund I Aggregator LP Director | Purchase | 360,000 | $3.11M⚡ | Form 4 |
| Dec 16, 2022 | SR One Capital Fund I Aggregator LP Director | Purchase | 500,000 | $4.14M⚡ | Form 4 |
| Dec 9, 2022 | LAPPE RODNEY W Director | Purchase | 15,000 | $119K | Form 4 |
| Mar 21, 2022 | William Arsani Director | Purchase | 25,000 | $475K | Form 4 |
| Mar 18, 2022 | Xu Stella Director | Sale | 13,200 | $268K | Form 4 |
| Mar 16, 2022 | Prasad Deepa Director | Other | 11,806 | — | Form 4 |
| Aug 31, 2021 | William Arsani Director | Purchase | 40,000 | $618K | Form 4 |
William Arsani
Director
Date
Aug 29
Shares
1,960,000
Price
$2.44
Value
$4.78M ⚡
Siffert Joao MD
President and CEO
Date
Dec 20
Shares
6,300
Price
$8.38
Value
$53K
Siffert Joao MD
President and CEO
Date
Dec 19
Shares
1,150
Price
$8.47
Value
$10K
SR One Capital Fund I Aggregator LP
Director
Date
Dec 20
Shares
40,000
Price
$8.14
Value
$325K
SR One Capital Fund I Aggregator LP
Director
Date
Dec 19
Shares
360,000
Price
$8.63
Value
$3.11M ⚡
SR One Capital Fund I Aggregator LP
Director
Date
Dec 16
Shares
500,000
Price
$8.28
Value
$4.14M ⚡
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About DSGN insider trading
DSGN insider trades
Design Therapeutics, Inc. (DSGN) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including William Arsani (Director). Over the past 12 months, 1 insiders have filed transactions with the SEC. DSGN insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Design Therapeutics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
DSGN insider trading · 5 questionsThe insiders of Design Therapeutics, Inc. (DSGN) include executives and directors such as William Arsani (Director), among others. Over the past 12 months, 1 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026