David W Keck insider trades: GT Advanced Technologies (GTAT) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
Open-market buys and sales
12 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 7, 2014 | GTAT | ↓ Sell | 64,326 | $15.11 | $972K | Direct | Aug 11, 2014 (4d) |
| Feb 26, 2014 | GTAT | ↓ Sell | 202,493 | $14.04 | $2.8M | Direct | Feb 27, 2014 (1d) |
| Feb 6, 2012 | GTAT | ↓ Sell | 91,246 | $9.43 | $860K | Direct | Feb 6, 2012 (0d) |
| Sep 7, 2011 | GTAT | ↓ Sell | 48,734 | $11.79 | $574K | Direct | Sep 9, 2011 (2d) |
| Mar 1, 2011 | SOLR | ↓ Sell | 49,104 | $10.58 | $520K | Direct | Mar 3, 2011 (2d) |
| Dec 13, 2010 | SOLR | ↓ Sell | 31,005 | $9.10 | $282K | Direct | Dec 14, 2010 (1d) |
| Aug 18, 2009 | SOLR | ↓ Sell | 17,085 | $5.28 | $90K | Direct | Aug 19, 2009 (1d) |
| May 27, 2009 | SOLR | ↓ Sell | 55,575 | $6.09 | $338K | Direct | May 28, 2009 (1d) |
| May 19, 2009 | SOLR | ↓ Sell | 25,840 | $5.34 | $138K | Direct | May 21, 2009 (2d) |
| May 18, 2009 | SOLR | ↓ Sell | 125,000 | $5.45 | $681K | Direct | May 19, 2009 (1d) |
| Feb 25, 2009 | SOLR | ↓ Sell | 40,000 | $4.50 | $180K | Direct | Feb 26, 2009 (1d) |
| Feb 23, 2009 | SOLR | ↓ Sell | 42,500 | $4.38 | $186K | Direct | Feb 25, 2009 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About David W Keck's insider trades
David W Keck is Exec.VP, Solar Business at GT Advanced Technologies (GTAT). Since Feb 23, 2009, David has reported no open-market purchases and 12 sales worth $7.7M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include option exercises (31 filings), shares withheld for taxes (23 filings), grants and awards (10 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 GTAT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

