Michael Koehler is CEO & President at TERADATA CORP /DE/ (TDC). They have made 12 open-market trades across 2 companies since 2006, most recently 2026-03-01.
1 open-market purchase totalling $413K since 2014, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TDC | SELL | 2016-03-08 | 2016-03-10 | $26.79 | $9.4M | +1.1% | -6.5% | +9.8% |
| TDC | SELL | 2016-03-02 | 2016-03-04 | $25.41 | $576K | -1.8% | -4.9% | +8.7% |
| TDC | SELL · 10b5-1 | 2014-11-17 | 2014-11-18 | $45.00 | $450K | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2014-11-07 | 2014-11-12 | $42.15 | $649K | -12.7% | +1.0% | +1.0% |
| TDC | BUY | 2014-02-10 | 2014-02-10 | $41.30 | $413K | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2012-05-14 | 2012-05-16 | $70.50 | $1.2M | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2012-05-04 | 2012-05-08 | $73.69 | $5.9M | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2012-02-10 | 2012-02-14 | $61.97 | $2.3M | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2011-05-23 | 2011-05-25 | $53.93 | $2.1M | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2010-06-03 | 2010-06-07 | $32.76 | $1.8M | -12.7% | +1.0% | +1.0% |
| TDC | SELL | 2009-08-13 | 2009-08-14 | $27.20 | $512K | -12.7% | +1.0% | +1.0% |
| NCR | SELL | 2006-03-02 | 2006-03-06 | $39.20 | $2.0M | -16.3% | +2.2% | +2.2% |
| NCR | SELL | 2006-02-13 | 2006-02-15 | $38.53 | $604K | -16.3% | +2.2% | +2.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.