TRT insider buying and SEC filings, explained
Trio-Tech International · CIK 732026
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$2.4M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Jun 18–19, 2026 | Sale | Jason T. Adelman (Director) sold 10,000 shares between Jun 18 and Jun 19 at about $15.36 ($154K). Holdings down 7% to 140,094 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 23, 2026 |
| May 26, 2026 | Sale | Hock Ming Ting (Director) sold 17,200 shares at about $16.65 ($286K). Holdings down 12% to 131,044 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 28, 2026 |
| May 18, 2026 | Sale | Richard M. Horowitz (Director and 10% owner) sold 67,500 shares at about $18.10 ($1.2M). Holdings down 9% to 664,784 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 27, 2026 |
| May 19, 2026 | Sale | Jason T. Adelman (Director) sold 14,975 shares at about $13.99 ($210K). Holdings down 27% to 40,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 20, 2026 |
| Mar 5–16, 2026 | Sale | Jason T. Adelman (Director) sold 22,000 shares between Mar 5 and Mar 16 at about $5.62 ($124K). Holdings down 31% to 50,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 15, 2026 |
| Apr 17–20, 2026 | Sale | Hock Ming Ting (Director) sold 5,800 shares between Apr 17 and Apr 20 at about $7.10 ($41K). Holdings down 4% to 148,244 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 21, 2026 |
| Apr 15–16, 2026 | Sale | Hock Ming Ting (Director) sold 7,000 shares between Apr 15 and Apr 16 at about $7.02 ($49K). Holdings down 4% to 154,044 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 13–14, 2026 | Sale | Hock Ming Ting (Director) sold 18,600 shares between Apr 13 and Apr 14 at about $6.87 ($128K). Holdings down 10% to 161,044 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 15, 2026 |
| Apr 9, 2026 | Sale | Hock Ming Ting (Director) sold 4,000 shares at $6.78 ($27K). Holdings down 2% to 179,644 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Jan 6–16, 2026 | Sale | Hock Ming Ting (Director) sold 6,070 shares between Jan 6 and Jan 16 at about $6.77 ($41K). Holdings down 3% to 183,644 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 20, 2026 |
| Jan 12, 2026 | Sale | Hock Ming Ting (Director) sold 5,000 shares at about $7.08 ($35K). Holdings down 3% to 189,714 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 14, 2026 |
| Jan 7, 2026 | Sale | Richard M. Horowitz (Director and 10% owner) sold 7,500 shares at $7.50 ($56K). Holdings down 1% to 621,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 9, 2026 |
18 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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