DONALD J TRINGALI

CIK 1199696 · last filed 2026-06-11

"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.

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Disclosed Exposure

$835.5K

Companies

4

Total Filings

32

Lifetime Open-Market Net

$70.7K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
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 · Page 3 of 4

32 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2011-10-05 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Buy (P) +200 $1.0K EDGAR
2011-09-29 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Buy (P) +6,000 $31.1K EDGAR
2011-09-29 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Grant (A) +11,848 $63.5K EDGAR
2011-09-23 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Buy (P) +1,300 $7.2K EDGAR
2011-08-04 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Exer (M) +10,000 $39.0K EDGAR
2010-07-23 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Grant (A) +8,018 $63.5K EDGAR
2010-06-25 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Exer (M) +22,500 $38.2K EDGAR
2010-03-25 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Grant (A) +25,000 $137.8K EDGAR
2009-01-15 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Buy (P) +1,798 $6.3K EDGAR
2009-01-08 NATIONAL TECHNICAL SYSTEMS INC /CA/ (NTSC) Delisted Buy (P) +1,800 $6.7K EDGAR
Showing 2130 of 32
Page 3 of 4
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.