DONALD J TRINGALI
CIK 1199696 · last filed 2026-06-11
DONALD J TRINGALI is a corporate insider who has filed 32 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for NGS, was dated Jun 11, 2026. Across all open-market trades the lifetime net is +$70.7K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $835.5K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$835.5K
4
32
$70.7K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NGS | Director | 19,718 | $42.37 | $835.5K | $0 | 11 | 2026-06-11 |
| FIREFLY NEUROSCIENCE, INC. (WAVD) Delisted | Director | — | $9.51 | — | $0 | 2 | 2022-11-23 |
| Cartesian, Inc. (CRTN) Delisted | Director | 37,500 | — | — | $3.0K | 3 | 2017-07-31 |
| NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted | Director | 158,322 | — | — | $67.6K | 13 | 2011-10-07 |
Recent Filings
32 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | NGS | Grant (A) | — | $0 | EDGAR |
| 2026-06-09 | NGS | Grant (A) | +49 | $2.1K | EDGAR |
| 2026-06-08 | NGS | Mixed | +4,456 | $0 | EDGAR |
| 2026-03-06 | NGS | Grant (A) | +40 | $1.5K | EDGAR |
| 2025-12-05 | NGS | Grant (A) | +49 | $1.5K | EDGAR |
| 2025-08-25 | NGS | Grant (A) | +34 | $843 | EDGAR |
| 2025-06-16 | NGS | Mixed | +5,620 | $0 | EDGAR |
| 2025-06-09 | NGS | Grant (A) | — | $0 | EDGAR |
| 2024-06-17 | NGS | Grant (A) | — | $0 | EDGAR |
| 2024-05-13 | NGS | Mixed | +9,470 | $0 | EDGAR |