Simeon George insider trades: CRISPR Therapeutics (CRSP) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Simeon reports to the SEC
and 6 more companies
Open-market buys and sales
35 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 14, 2026 | CRSP | ↓ Sell | 14,514 | $49.63 | $720K | Direct | Oct 16, 2026 (2d) |
| Sep 28, 2026 | ADRX | ↑ Buy | 592,593 | $17.00 | $10.1M | See Note 2 | Sep 29, 2026 (1d) |
| Sep 28, 2026 | ADRX | ↑ Buy | 592,593 | $17.00 | $10.1M | See Note 5 | Sep 29, 2026 (1d) |
| Sep 28, 2026 | ADRX | ↑ Buy | 414,814 | $17.00 | $7.1M | See Note 3 | Sep 29, 2026 (1d) |
| May 11, 2026 | ODTX | ↑ Buy | 222,222 | $18.00 | $4.0M | See Note 2 | May 11, 2026 (0d) |
| May 11, 2026 | ODTX | ↑ Buy | 200,000 | $18.00 | $3.6M | See Note 12 | May 11, 2026 (0d) |
| May 11, 2026 | ODTX | ↑ Buy | 133,333 | $18.00 | $2.4M | See Note 10 | May 11, 2026 (0d) |
| May 11, 2026 | ODTX | ↓ Sell | 1,065 | $18.00 | $19K | See Note 2 | May 11, 2026 (0d) |
| May 11, 2026 | ODTX | ↓ Sell | 438 | $18.00 | $8K | See Note 12 | May 11, 2026 (0d) |
| May 11, 2026 | ODTX | ↓ Sell | 277 | $18.00 | $5K | See Note 10 | May 11, 2026 (0d) |
| Oct 9, 2025 | ZBIO | ↑ Buy | 63,158 | $19.00 | $1.2M | See Note 2 | Oct 14, 2025 (5d) |
| Oct 9, 2025 | ZBIO | ↑ Buy | 63,157 | $19.00 | $1.2M | See Note 3 | Oct 14, 2025 (5d) |
| Jul 16, 2025 | CRSP | ↑ Buy | 960,983 | $52.03 | $50.0M | See Note 3 | Jul 17, 2025 (1d) |
| Jul 16, 2025 | CRSP | ↑ Buy | 22,319 | $52.03 | $1.2M | See Note 2 | Jul 17, 2025 (1d) |
| Jul 16, 2025 | CRSP | ↑ Buy | 6,510 | $52.03 | $339K | See Note 1 | Jul 17, 2025 (1d) |
| Sep 16, 2024 | ZBIO | ↑ Buy | 1,352,942 | $17.00 | $23.0M | See Note 3 | Sep 16, 2024 (0d) |
| Sep 16, 2024 | ZBIO | ↑ Buy | 441,176 | $17.00 | $7.5M | See Note 4 | Sep 16, 2024 (0d) |
| Sep 16, 2024 | ZBIO | ↑ Buy | 441,176 | $17.00 | $7.5M | See Note 2 | Sep 16, 2024 (0d) |
| Mar 27, 2024 | NKTX | ↑ Buy | 1,548,341 | $10.00 | $15.5M | See Note 2 | Mar 28, 2024 (1d) |
| Mar 27, 2024 | NKTX | ↑ Buy | 451,659 | $10.00 | $4.5M | See Note 3 | Mar 28, 2024 (1d) |
| Nov 27, 2023 | EFTR | ↓ Sell | 430,578 | $0.61 | $261K | See Note 2 | Nov 29, 2023 (2d) |
| Nov 27, 2023 | EFTR | ↓ Sell | 178,585 | $0.61 | $108K | See Note 3 | Nov 29, 2023 (2d) |
| May 11, 2023 | ACLX | ↓ Sell | 638,417 | $45.01 | $28.7M | See Note 2 | May 15, 2023 (4d) |
| May 11, 2023 | ACLX | ↓ Sell | 374,416 | $45.01 | $16.9M | See Note 3 | May 15, 2023 (4d) |
| Dec 20, 2022 | DSGN | ↑ Buy | 900,000 | $8.42 | $7.6M | See Note 2 | Dec 20, 2022 (0d) |
| Apr 28, 2022 | NKTX | ↑ Buy | 1,333,333 | $15.00 | $20.0M | Indirect | Apr 29, 2022 (1d) |
| Feb 8, 2022 | ACLX | ↑ Buy | 1,666,667 | $15.00 | $25.0M | Indirect | Feb 10, 2022 (2d) |
| Mar 30, 2021 | DSGN | ↑ Buy | 250,000 | $20.00 | $5.0M | Indirect | Apr 1, 2021 (2d) |
| May 21, 2020 | TPTX | ↑ Buy | 83,333 | $60.00 | $5.0M | Indirect | May 26, 2020 (5d) |
| Oct 18, 2019 | PRNB | ↑ Buy | 357,142 | $28.00 | $10.0M | Indirect | Oct 22, 2019 (4d) |
| Sep 10, 2019 | TPTX | ↑ Buy | 177,777 | $45.00 | $8.0M | Indirect | Sep 11, 2019 (1d) |
| Apr 22, 2019 | TPTX | ↑ Buy | 325,000 | $18.00 | $5.8M | By S.R.One, Limited | Apr 24, 2019 (2d) |
| Sep 18, 2018 | PRNB | ↑ Buy | 270,000 | $17.00 | $4.6M | Indirect | Sep 20, 2018 (2d) |
| Oct 24, 2016 | CRSP | ↑ Buy | 66,500 | $14.00 | $931K | See explanation of responses | Oct 26, 2016 (2d) |
| Feb 10, 2014 | GNCA | ↑ Buy | 143,773 | $12.00 | $1.7M | Indirect | Feb 11, 2014 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CRSP insiders
Open-market trades in the last 12 months
About Simeon George's insider trades
Simeon George is an insider at CRISPR Therapeutics (CRSP). Since Feb 10, 2014, Simeon has reported 27 open-market purchases worth $242.8M and 8 sales worth $46.7M on SEC Form 4. In the last 12 months: 6 buys ($37.2M) and 4 sales ($752K).
Their filings also include grants and awards (31 filings), conversions (9 filings), option exercises (2 filings), shares returned to the company (2 filings). 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 CRSP insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.