Thomas Merk insider trades: Rofin Sinar Technologies (RSTI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Thomas reports to the SEC
Open-market buys and sales
16 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 24, 2015 | RSTI | ↓ Sell | 50,000 | $28.10 | $1.4M | Direct | Nov 24, 2015 (0d) |
| Feb 22, 2013 | RSTI | ↓ Sell | 10,000 | $27.29 | $273K | Direct | Feb 22, 2013 (0d) |
| Feb 11, 2013 | RSTI | ↓ Sell | 25,000 | $27.76 | $694K | Direct | Feb 11, 2013 (0d) |
| Feb 11, 2013 | RSTI | ↑ Buy | 25,000 | $17.11 | $428K | Direct | Feb 11, 2013 (0d) |
| Feb 17, 2011 | RSTI | ↓ Sell | 20,000 | $39.56 | $791K | Direct | Feb 17, 2011 (0d) |
| Feb 17, 2011 | RSTI | ↑ Buy | 20,000 | $16.36 | $327K | Direct | Feb 17, 2011 (0d) |
| Nov 10, 2010 | RSTI | ↓ Sell | 30,000 | $29.50 | $885K | Direct | Nov 10, 2010 (0d) |
| Nov 10, 2010 | RSTI | ↑ Buy | 30,000 | $16.36 | $491K | Direct | Nov 10, 2010 (0d) |
| Nov 8, 2010 | RSTI | ↓ Sell | 3,000 | $29.22 | $88K | Direct | Nov 8, 2010 (0d) |
| Jun 4, 2010 | RSTI | ↓ Sell | 3,000 | $23.84 | $72K | Direct | Jun 7, 2010 (3d) |
| Jul 1, 2008 | RSTI | ↑ Buy | 6,000 | $4.89 | $29K | Direct | Jul 1, 2008 (0d) |
| Feb 4, 2008 | RSTI | ↓ Sell | 6,000 | $42.70 | $256K | Direct | Feb 5, 2008 (1d) |
| Feb 4, 2008 | RSTI | ↑ Buy | 6,000 | $4.89 | $29K | Direct | Feb 5, 2008 (1d) |
| May 9, 2007 | RSTI | ↓ Sell | 3,000 | $69.00 | $207K | Direct | May 9, 2007 (0d) |
| May 9, 2007 | RSTI | ↑ Buy | 3,000 | $8.75 | $26K | Direct | May 9, 2007 (0d) |
| Dec 7, 2006 | RSTI | ↓ Sell | 8,000 | $58.04 | $464K | Direct | Dec 8, 2006 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Thomas Merk's insider trades
Thomas Merk is President & CEO at Rofin Sinar Technologies (RSTI). Since Dec 7, 2006, Thomas has reported 6 open-market purchases worth $1.3M and 10 sales worth $5.1M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include other transactions (10 filings), shares withheld for taxes (8 filings), grants and awards (8 filings), option exercises (7 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 RSTI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

