Erich Platzer insider trades: Aptose Biosciences (APTO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Erich reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 16, 2021 | APTO | ↑ Buy | 100,000 | $1.38 | $138K | Direct | Dec 20, 2021 (4d) |
| Dec 15, 2021 | APTO | ↑ Buy | 270,000 | $1.17 | $316K | Direct | Dec 17, 2021 (2d) |
| Mar 19, 2019 | APTO | ↓ Sell | 20,000 | $2.19 | $44K | Direct | Mar 20, 2019 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Erich Platzer's insider trades
Erich Platzer is an insider at Aptose Biosciences (APTO). Since Mar 19, 2019, Erich has reported 2 open-market purchases worth $454K and 1 sale worth $44K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (7 filings), shares returned to the company (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 APTO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.