Charles N York II insider trades: Day One Biopharmaceuticals (DAWN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Charles reports to the SEC
Open-market buys and sales
28 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Feb 17, 2026 | DAWN | ↓ Sell | 6,065 | $11.60 | $70K | Direct | Feb 18, 2026 (1d) |
| Nov 17, 2025 | DAWN | ↓ Sell | 4,062 | $8.91 | $36K | Direct | Nov 18, 2025 (1d) |
| Aug 18, 2025 | DAWN | ↓ Sell | 4,106 | $6.77 | $28K | Direct | Aug 19, 2025 (1d) |
| May 16, 2025 | DAWN | ↓ Sell | 4,282 | $6.26 | $27K | Direct | May 19, 2025 (3d) |
| Feb 18, 2025 | DAWN | ↓ Sell | 4,370 | $11.96 | $52K | Direct | Feb 21, 2025 (3d) |
| Nov 18, 2024 | DAWN | ↓ Sell | 2,602 | $13.21 | $34K | Direct | Nov 19, 2024 (1d) |
| Aug 16, 2024 | DAWN | ↓ Sell | 2,633 | $14.00 | $37K | Direct | Aug 19, 2024 (3d) |
| May 16, 2024 | DAWN | ↓ Sell | 2,675 | $16.08 | $43K | Direct | May 17, 2024 (1d) |
| May 3, 2024 | DAWN | ↓ Sell | 60,461 | $17.88 | $1.1M | Direct | May 3, 2024 (0d) |
| Feb 16, 2024 | DAWN | ↓ Sell | 2,666 | $15.25 | $41K | Direct | Feb 20, 2024 (4d) |
| Nov 16, 2023 | DAWN | ↓ Sell | 956 | $11.69 | $11K | Direct | Nov 17, 2023 (1d) |
| Aug 17, 2023 | DAWN | ↓ Sell | 922 | $13.86 | $13K | Direct | Aug 17, 2023 (0d) |
| May 16, 2023 | DAWN | ↓ Sell | 955 | $13.12 | $13K | Direct | May 17, 2023 (1d) |
| Feb 17, 2023 | DAWN | ↓ Sell | 9,377 | $20.03 | $188K | Direct | Feb 21, 2023 (4d) |
| Feb 16, 2023 | DAWN | ↓ Sell | 930 | $19.57 | $18K | Direct | Feb 17, 2023 (1d) |
| Jan 20, 2023 | DAWN | ↓ Sell | 10,000 | $22.75 | $228K | Direct | Jan 23, 2023 (3d) |
| Dec 20, 2022 | DAWN | ↓ Sell | 10,000 | $20.07 | $201K | Direct | Dec 22, 2022 (2d) |
| Nov 21, 2022 | DAWN | ↓ Sell | 10,000 | $20.76 | $208K | Direct | Nov 22, 2022 (1d) |
| Nov 16, 2022 | DAWN | ↓ Sell | 430 | $21.46 | $9K | Direct | Nov 17, 2022 (1d) |
| Nov 1, 2022 | DAWN | ↓ Sell | 10,000 | $20.03 | $200K | Direct | Nov 3, 2022 (2d) |
| Oct 3, 2022 | DAWN | ↓ Sell | 10,000 | $20.05 | $200K | Direct | Oct 5, 2022 (2d) |
| Sep 1, 2022 | DAWN | ↓ Sell | 10,000 | $23.25 | $232K | Direct | Sep 6, 2022 (5d) |
| Aug 16, 2022 | DAWN | ↓ Sell | 1,089 | $24.31 | $26K | Direct | Aug 17, 2022 (1d) |
| Aug 4, 2022 | DAWN | ↓ Sell | 10,000 | $20.05 | $201K | Direct | Aug 5, 2022 (1d) |
| Jul 18, 2022 | DAWN | ↓ Sell | 2,500 | $20.00 | $50K | Direct | Jul 20, 2022 (2d) |
| Jul 8, 2022 | DAWN | ↓ Sell | 1,416 | $20.00 | $28K | Direct | Jul 12, 2022 (4d) |
| Jul 5, 2022 | DAWN | ↓ Sell | 2,279 | $20.00 | $46K | Direct | Jul 6, 2022 (1d) |
| Dec 5, 2017 | AGLE | ↑ Buy | 25,959 | $4.48 | $116K | Direct | Dec 5, 2017 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other DAWN insiders
Open-market trades in the last 12 months
About Charles N York II's insider trades
Charles N York II is COO and CFO at Day One Biopharmaceuticals (DAWN). Since Dec 5, 2017, Charles has reported 1 open-market purchase worth $116K and 27 sales worth $3.3M on SEC Form 4. In the last 12 months: 2 sales ($107K).
Their filings also include option exercises (15 filings), grants and awards (12 filings), shares returned to the company (2 filings), conversions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every DAWN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.