Michael R Bristow insider trades: ARCA biopharma (ABIO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michael reports to the SEC
Open-market buys and sales
18 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 4, 2017 | ABIO | ↓ Sell10b5-1 | 720 | $2.41 | $2K | Direct | Apr 5, 2017 (1d) |
| Feb 28, 2017 | ABIO | ↓ Sell10b5-1 | 763 | $2.61 | $2K | Direct | Mar 1, 2017 (1d) |
| Sep 20, 2016 | ABIO | ↓ Sell10b5-1 | 1,972 | $2.89 | $6K | Direct | Sep 21, 2016 (1d) |
| Apr 5, 2016 | ABIO | ↓ Sell10b5-1 | 724 | $3.52 | $3K | Direct | Apr 6, 2016 (1d) |
| Mar 1, 2016 | ABIO | ↓ Sell10b5-1 | 752 | $3.50 | $3K | Direct | Mar 2, 2016 (1d) |
| Sep 18, 2015 | ABIO | ↓ Sell10b5-1 | 1,809 | $6.33 | $11K | Direct | Sep 21, 2015 (3d) |
| Mar 2, 2015 | ABIO | ↓ Sell10b5-1 | 5,446 | $0.71 | $4K | Direct | Mar 2, 2015 (0d) |
| Sep 18, 2014 | ABIO | ↓ Sell10b5-1 | 13,853 | $1.30 | $18K | Direct | Sep 19, 2014 (1d) |
| Jan 25, 2013 | ABIO | ↑ Buy | 1,069,290 | $0.47 | $500K | By NFS Custodian for Michael Bristow's I | Jan 28, 2013 (3d) |
| Sep 5, 2006 | MYOG | ↓ Sell10b5-1 | 29,602 | $35.00 | $1.0M | Direct | Sep 6, 2006 (1d) |
| Sep 1, 2006 | MYOG | ↓ Sell10b5-1 | 56,547 | $35.00 | $2.0M | Direct | Sep 5, 2006 (4d) |
| Jan 3, 2006 | MYOG | ↓ Sell10b5-1 | 30,000 | $30.12 | $904K | Direct | Jan 4, 2006 (1d) |
| Dec 12, 2005 | MYOG | ↓ Sell10b5-1 | 60,000 | $28.05 | $1.7M | Direct | Dec 13, 2005 (1d) |
| Dec 1, 2005 | MYOG | ↓ Sell10b5-1 | 10,000 | $20.67 | $207K | Direct | Dec 2, 2005 (1d) |
| Nov 1, 2005 | MYOG | ↓ Sell10b5-1 | 10,000 | $19.64 | $196K | Direct | Nov 3, 2005 (2d) |
| Oct 3, 2005 | MYOG | ↓ Sell10b5-1 | 10,000 | $23.66 | $237K | Direct | Oct 4, 2005 (1d) |
| Sep 1, 2005 | MYOG | ↓ Sell10b5-1 | 10,000 | $20.19 | $202K | Direct | Sep 1, 2005 (0d) |
| Aug 18, 2005 | MYOG | ↓ Sell10b5-1 | 10,000 | $20.83 | $208K | Direct | Aug 19, 2005 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Michael R Bristow's insider trades
Michael R Bristow is Pres. & Chief Executive Offic at ARCA biopharma (ABIO). Since Aug 18, 2005, Michael has reported 1 open-market purchase worth $500K and 17 sales worth $6.7M on SEC Form 4. There have been no open-market trades in the last 12 months.
17 sales (100% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (13 filings), option exercises (10 filings), other transactions (3 filings), gifts (3 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 ABIO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

