Bradley J PhD Bolzon 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 Bradley reports to the SEC






and 3 more companies
Open-market buys and sales
64 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jul 19, 2021 | CRSP | ↓ Sell | 10,000 | $126.43 | $1.3M | Indirect | Jul 21, 2021 (2d) |
| Jun 29, 2021 | CRSP | ↓ Sell | 47,536 | $149.49 | $7.1M | Direct | Jun 30, 2021 (1d) |
| Jun 28, 2021 | CRSP | ↓ Sell | 20,375 | $152.48 | $3.1M | Direct | Jun 30, 2021 (2d) |
| Jun 28, 2021 | GLUE | ↑ Buy | 157,895 | $19.00 | $3.0M | By Versant Vantage I, L.P. | Jun 30, 2021 (2d) |
| Jun 28, 2021 | CRSP | ↓ Sell | 10,000 | $152.48 | $1.5M | Indirect | Jun 30, 2021 (2d) |
| Jun 11, 2021 | CRSP | ↓ Sell | 10,000 | $126.61 | $1.3M | Direct | Jun 15, 2021 (4d) |
| Mar 22, 2021 | CRSP | ↓ Sell | 30,374 | $132.37 | $4.0M | Direct | Mar 24, 2021 (2d) |
| Feb 19, 2021 | CRSP | ↓ Sell | 171,003 | $149.11 | $25.5M | Indirect | Feb 23, 2021 (4d) |
| Dec 16, 2020 | CRSP | ↓ Sell | 7,648 | $148.95 | $1.1M | Direct | Dec 18, 2020 (2d) |
| Dec 16, 2020 | CRSP | ↓ Sell | 7,352 | $148.95 | $1.1M | Indirect | Dec 18, 2020 (2d) |
| Dec 10, 2020 | CRSP | ↓ Sell | 33,000 | $143.35 | $4.7M | Indirect | Dec 14, 2020 (4d) |
| Dec 7, 2020 | CRSP | ↓ Sell | 171,004 | $154.53 | $26.4M | Indirect | Dec 9, 2020 (2d) |
| Nov 30, 2020 | BDTX | ↓ Sell | 10,393 | $33.15 | $345K | Indirect | Dec 1, 2020 (1d) |
| Nov 19, 2020 | BDTX | ↓ Sell | 130,017 | $33.01 | $4.3M | Indirect | Nov 23, 2020 (4d) |
| Nov 18, 2020 | BDTX | ↓ Sell | 4,730 | $33.05 | $156K | Indirect | Nov 19, 2020 (1d) |
| Nov 16, 2020 | BDTX | ↓ Sell | 4,700 | $33.74 | $159K | Indirect | Nov 17, 2020 (1d) |
| Nov 12, 2020 | BDTX | ↓ Sell | 15,598 | $34.15 | $533K | Indirect | Nov 13, 2020 (1d) |
| Nov 11, 2020 | BDTX | ↓ Sell | 39,583 | $34.11 | $1.4M | Indirect | Nov 12, 2020 (1d) |
| Nov 9, 2020 | BDTX | ↓ Sell | 9,400 | $33.08 | $311K | Indirect | Nov 10, 2020 (1d) |
| Nov 5, 2020 | BDTX | ↓ Sell | 11,348 | $33.14 | $376K | Indirect | Nov 6, 2020 (1d) |
| Oct 27, 2020 | BDTX | ↓ Sell | 8,903 | $33.28 | $296K | Indirect | Oct 28, 2020 (1d) |
| Oct 19, 2020 | BDTX | ↓ Sell | 15,746 | $33.44 | $527K | Indirect | Oct 20, 2020 (1d) |
| Oct 14, 2020 | BDTX | ↓ Sell | 17,240 | $33.30 | $574K | Indirect | Oct 15, 2020 (1d) |
| Oct 12, 2020 | BDTX | ↓ Sell | 22,625 | $33.50 | $758K | Indirect | Oct 13, 2020 (1d) |
| Oct 7, 2020 | BDTX | ↓ Sell | 45,926 | $33.44 | $1.5M | Indirect | Oct 8, 2020 (1d) |
| Sep 18, 2020 | CRSP | ↓ Sell | 3,035 | $86.87 | $264K | Indirect | Sep 22, 2020 (4d) |
| Sep 16, 2020 | CRSP | ↓ Sell | 8,965 | $86.98 | $780K | Indirect | Sep 18, 2020 (2d) |
| Sep 14, 2020 | CRSP | ↓ Sell | 1,155 | $84.89 | $98K | Indirect | Sep 16, 2020 (2d) |
| Sep 10, 2020 | CRSP | ↓ Sell | 22,845 | $85.36 | $1.9M | Indirect | Sep 11, 2020 (1d) |
| Sep 1, 2020 | CRSP | ↓ Sell | 60,000 | $92.51 | $5.6M | Indirect | Sep 3, 2020 (2d) |
| Aug 11, 2020 | BDTX | ↓ Sell | 13,792 | $33.06 | $456K | Indirect | Aug 12, 2020 (1d) |
| Jul 6, 2020 | CRSP | ↓ Sell | 20,000 | $82.39 | $1.6M | Indirect | Jul 8, 2020 (2d) |
| Jun 23, 2020 | CRSP | ↓ Sell | 20,000 | $73.93 | $1.5M | Indirect | Jun 24, 2020 (1d) |
| Feb 3, 2020 | BDTX | ↑ Buy | 894,736 | $19.00 | $17.0M | Indirect | Feb 5, 2020 (2d) |
| Nov 19, 2019 | CRSP | ↓ Sell | 28,255 | $67.41 | $1.9M | Indirect | Nov 21, 2019 (2d) |
| Nov 19, 2019 | CRSP | ↓ Sell | 13,745 | $67.41 | $927K | Direct | Nov 21, 2019 (2d) |
| Oct 30, 2019 | CRSP | ↓ Sell | 21,000 | $51.89 | $1.1M | Direct | Nov 1, 2019 (2d) |
| May 15, 2018 | CRSP | ↓ Sell | 44,000 | $57.99 | $2.6M | Indirect | May 17, 2018 (2d) |
| May 8, 2018 | CRSP | ↓ Sell | 9,241 | $50.54 | $467K | Direct | May 9, 2018 (1d) |
| May 7, 2018 | CRSP | ↓ Sell | 119,709 | $50.38 | $6.0M | Indirect | May 9, 2018 (2d) |
| Apr 30, 2018 | CRSP | ↓ Sell | 30,566 | $50.29 | $1.5M | Indirect | May 2, 2018 (2d) |
| Apr 27, 2018 | CRSP | ↓ Sell | 222,258 | $50.11 | $11.1M | Indirect | Apr 30, 2018 (3d) |
| Apr 24, 2018 | CRSP | ↓ Sell | 22,841 | $50.99 | $1.2M | Indirect | Apr 26, 2018 (2d) |
| Apr 23, 2018 | CRSP | ↓ Sell | 101,994 | $50.68 | $5.2M | Indirect | Apr 24, 2018 (1d) |
| Dec 22, 2017 | CRSP | ↓ Sell | 26,016 | $20.30 | $528K | Direct | Dec 27, 2017 (5d) |
| Nov 27, 2017 | CRSP | ↓ Sell | 1,707 | $20.21 | $34K | Direct | Nov 28, 2017 (1d) |
| Oct 24, 2016 | CRSP | ↑ Buy | 161,000 | $14.00 | $2.3M | Indirect | Dec 23, 2016 (60d) |
| Jun 8, 2016 | FLXN | ↑ Buy | 714,285 | $14.00 | $10.0M | Indirect | Jun 10, 2016 (2d) |
| May 23, 2016 | PZRX | ↑ Buy | 596,477 | $5.00 | $3.0M | By Versant Venture Capital III, L.P. | May 24, 2016 (1d) |
| May 23, 2016 | PZRX | ↑ Buy | 3,523 | $5.00 | $18K | By Versant Side Fund III, L.P. | May 24, 2016 (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 Bradley J PhD Bolzon's insider trades
Bradley J PhD Bolzon is a director at CRISPR Therapeutics (CRSP). Since May 30, 2007, Bradley has reported 9 open-market purchases worth $40.9M and 55 sales worth $135.0M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include other transactions (24 filings), grants and awards (11 filings), conversions (7 filings), option exercises (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.