As of the latest Form 4 filed Jun 23, 2026.
What Trio-Tech International insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 17 most recent filings for TRT.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-23 | 2026-06-23 | ADELMAN JASON T Director | MExercise | +70.0K | $3.11 | $218K | No | Form 4 ↗ |
| 2026-06-23 | 2026-06-19 | ADELMAN JASON T, Director | SSale | −5.00K | $14.88 | $74.4K | No | Form 4 ↗ |
| 2026-06-23 | 2026-06-18 | ADELMAN JASON T, Director | SSale | −5.00K | $15.84 | $79.2K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | TING HOCK MING Director | SSale | −17.2K | $16.65 | $286K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH SR CORP VP AND COO (TESTING) | MExercise | +5.00K | $2.62 | $13.1K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH, SR CORP VP AND COO (TESTING) | MExercise | +10.0K | $3.09 | $30.9K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH, SR CORP VP AND COO (TESTING) | MExercise | +18.8K | $2.51 | $47.1K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH, SR CORP VP AND COO (TESTING) | MExercise | +15.0K | $2.44 | $36.6K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH, SR CORP VP AND COO (TESTING) | MExercise | +8.00K | $2.59 | $20.7K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | LIM HWEE POH, SR CORP VP AND COO (TESTING) | MExercise | +3.00K | $3.88 | $11.6K | No | Form 4 ↗ |
| 2026-04-21 | 2026-04-20 | TING HOCK MING Director | SSale | −2.00K | $7.13 | $14.3K | No | Form 4 ↗ |
| 2026-04-21 | 2026-04-17 | TING HOCK MING, Director | SSale | −3.80K | $7.08 | $26.9K | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-16 | TING HOCK MING Director | SSale | −4.00K | $7.04 | $28.2K | No | Form 4 ↗ |
| 2026-04-17 | 2026-04-15 | TING HOCK MING, Director | SSale | −3.00K | $6.99 | $21.0K | No | Form 4 ↗ |
| 2026-04-15 | 2026-04-14 | TING HOCK MING Director | SSale | −12.6K | $6.93 | $87.3K | No | Form 4 ↗ |
| 2026-04-15 | 2026-04-13 | TING HOCK MING, Director | SSale | −6.00K | $6.73 | $40.4K | No | Form 4 ↗ |
| 2026-04-10 | 2026-04-09 | TING HOCK MING Director | SSale | −4.00K | $6.78 | $27.1K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also TRT’s full analysis or the market-wide insider trading feed. The tabs above jump to TRT’s other SEC data.
Source: SEC Form 4 filings for TRT, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.