Donald J. Tringali is Director at NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC). They have made 8 open-market trades across 2 companies since 2009, most recently 2026-09-02.
CIK 0001199696
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
8 open-market purchases totalling $71K since 2009, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CRTN | BUY | 2016-08-18 | 2016-08-19 | $0.61 | $3K | +17.8% | +4.5% | -17.9% |
| NTSC | BUY | 2011-10-05 | 2011-10-07 | $4.75 | $4K | N/A | N/A | N/A |
| NTSC | BUY | 2011-10-04 | 2011-10-05 | $5.00 | $1K | N/A | N/A | N/A |
| NTSC | BUY | 2011-09-29 | 2011-09-29 | $5.19 | $31K | N/A | N/A | N/A |
| NTSC | BUY | 2011-09-22 | 2011-09-23 | $5.55 | $7K | N/A | N/A | N/A |
| NTSC | BUY | 2009-01-13 | 2009-01-15 | $3.50 | $6K | N/A | N/A | N/A |
| NTSC | BUY | 2009-01-07 | 2009-01-08 | $3.70 | $7K | N/A | N/A | N/A |
| NTSC | BUY | 2009-01-05 | 2009-01-06 | $3.60 | $12K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.