TRT (Trio-Tech International)
Insider Trading Activity
Every open-market purchase and sale reported by TRT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-29 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | — | — |
| 2026-07-09 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | — | — |
| 2026-07-09 | HWEE POH LIM | SR CORP VP AND COO (TESTING) | A | — | — |
| 2026-06-23 | JASON T ADELMAN | Director | MIXED | — | — |
| 2026-06-01 | JASON T ADELMAN | Director | M | — | — |
| 2026-05-28 | HOCK MING TING | Director | Sell | — | — |
| 2026-05-27 | RICHARD M HOROWITZ | Director | Sell | — | — |
| 2026-05-20 | JASON T ADELMAN | Director | MIXED | — | — |
| 2026-05-15 | JASON T ADELMAN | Director | Sell | — | — |
| 2026-04-21 | HOCK MING TING | Director | Sell | — | — |
| 2026-04-17 | HOCK MING TING | Director | Sell | — | — |
| 2026-04-15 | HOCK MING TING | Director | Sell | — | — |
| 2026-04-10 | HOCK MING TING | Director | Sell | — | — |
| 2026-02-26 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | — | — |
| 2026-02-18 | RICHARD M HOROWITZ | Director | M | — | — |
| 2026-01-29 | SIEW WAI YONG | PRESIDENT AND CEO | M | — | — |
| 2026-01-20 | HOCK MING TING | Director | Sell | — | — |
| 2026-01-14 | HOCK MING TING | Director | Sell | — | — |
| 2026-01-13 | RICHARD M HOROWITZ | Director | A | — | — |
| 2026-01-13 | JASON T ADELMAN | Director | A | — | — |
| 2026-01-13 | HOCK MING TING | Director | A | — | — |
| 2026-01-13 | SIEW WAI YONG | CHAIRMAN AND CEO | A | — | — |
| 2026-01-09 | HOCK MING TING | Director | Sell | — | — |
| 2026-01-09 | RICHARD M HOROWITZ | Director | Sell | — | — |
| 2025-10-15 | JASON T ADELMAN | Director | M | — | — |
| 2025-10-15 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | — | — |
| 2025-07-09 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | — | — |
| 2025-07-09 | HWEE POH LIM | SR CORP VP AND COO (TESTING) | A | — | — |
| 2025-03-27 | SIEW WAI YONG | CHAIRMAN AND CEO | A | — | — |
| 2025-03-27 | HOCK MING TING | Director | A | — | — |
| 2025-03-27 | RICHARD M HOROWITZ | Director | A | — | — |
| 2025-03-27 | JASON T ADELMAN | Director | A | — | — |
| 2025-03-17 | RICHARD M HOROWITZ | Director | M | — | — |
| 2025-02-28 | JASON T ADELMAN | Director | Sell | — | — |
| 2024-10-21 | JASON T ADELMAN | Director | Sell | — | — |
| 2024-07-10 | HWEE POH LIM | SENIOR CORPORATE VP AND COO | A | — | — |
| 2024-07-10 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | — | — |
| 2024-04-09 | RICHARD M HOROWITZ | Director | M | — | — |
| 2024-04-05 | JASON T ADELMAN | Director | M | — | — |
| 2024-03-18 | A CHARLES WILSON | 10%+ Owner | M | — | — |
| 2024-01-22 | HOCK MING TING | Director | M | — | — |
| 2024-01-18 | HOCK MING TING | Director | A | — | — |
| 2024-01-18 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | — | — |
| 2024-01-18 | JASON T ADELMAN | Director | A | — | — |
| 2024-01-18 | RICHARD M HOROWITZ | Director | A | — | — |
| 2024-01-18 | HWEE POH LIM | SENIOR CORPORATE VP AND COO | A | — | — |
| 2024-01-18 | SIEW WAI YONG | CHAIRMAN AND CEO | A | — | — |
| 2023-12-14 | Siew Kuan Soon | CORPORATE VICE PRESIDENT | M | — | — |
| 2023-12-01 | Siew Kuan Soon | CORPORATE VICE PRESIDENT | M | — | — |
| 2023-12-01 | SIEW WAI YONG | PRESIDENT AND CEO | M | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 1,333,512 | — |
| — | PRESIDENT AND CEO | 1,260,247 | — |
| — | Director | 871,000 | — |
| — | SR CORP VP AND COO (TESTING) | 171,466 | — |
| — | Director | 145,094 | — |
| — | Director | 131,044 | — |
| — | CORPORATE VICE PRESIDENT | 50,200 | — |
| — | CHIEF FINANCIAL OFFICER | 29,015 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the TRT quote page; the site-wide leaderboard is on the insider transactions hub.