Charles J. Roesslein, Director at NATIONAL INSTRUMENTS CORP /DE/ (NATI), bought 1,000 shares at $28.47 ($28K) on 2013-05-15, disclosed to the SEC on 2013-05-16.
Seasonal purchase ($28k) by Director — this insider has traded NATI in May in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| Filing → |
| NATI | BUY | 2012-11-02 | $47K | — | Filing → |
| ATNI | SELL | 2008-06-06 | $60K | — | Filing → |
| NATI | BUY | 2007-02-28 | $27K | — | Filing → |