TRT · Insider Trading
Trio-Tech International Common Stock
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-29 | Siew Wai Yong | CHAIRMAN AND CEO | M | +50,000 | +$194.00K |
| 2026-09-28 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | +8,005 | +$20.09K |
| 2026-07-29 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | +6,002 | +$15.09K |
| 2026-07-09 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | +5,000 deriv. | — |
| 2026-07-09 | Hwee Poh Lim | SR CORP VP AND COO (TESTING) | A | +5,000 deriv. | — |
| 2026-06-23 | Jason T Adelman | Director | MIXED | +60,000 | +$64.10K |
| 2026-06-01 | Jason T Adelman | Director | M | +110,094 | +$335.34K |
| 2026-05-28 | Hock Ming Ting | Director | Sell | −17,200 | −$286.38K |
| 2026-05-27 | Richard M Horowitz | Director | Sell | −67,500 | −$1.22M |
| 2026-05-20 | Jason T Adelman | Director | MIXED | −10,225 | −$728.89K |
| 2026-05-15 | Jason T Adelman | Director | Sell | −22,000 | −$123.57K |
| 2026-04-21 | Hock Ming Ting | Director | Sell | −5,800 | −$41.16K |
| 2026-04-17 | Hock Ming Ting | Director | Sell | −7,000 | −$49.13K |
| 2026-04-15 | Hock Ming Ting | Director | Sell | −18,600 | −$127.70K |
| 2026-04-10 | Hock Ming Ting | Director | Sell | −4,000 | −$27.12K |
| 2026-02-26 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | +7,015 | +$21.68K |
| 2026-02-18 | Richard M Horowitz | Director | M | +40,056 | +$105.75K |
| 2026-01-29 | Siew Wai Yong | PRESIDENT AND CEO | M | +80,111 | +$211.49K |
| 2026-01-20 | Hock Ming Ting | Director | Sell | −6,070 | −$41.06K |
| 2026-01-14 | Hock Ming Ting | Director | Sell | −5,000 | −$35.41K |
| 2026-01-13 | Richard M Horowitz | Director | A | +70,000 deriv. | — |
| 2026-01-13 | Jason T Adelman | Director | A | +70,000 deriv. | — |
| 2026-01-13 | Hock Ming Ting | Director | A | +60,000 deriv. | — |
| 2026-01-13 | Siew Wai Yong | CHAIRMAN AND CEO | A | +80,000 deriv. | — |
| 2026-01-09 | Hock Ming Ting | Director | Sell | +6,600 | +$48.61K |
| 2026-01-09 | Richard M Horowitz | Director | Sell | −7,500 | −$56.28K |
| 2025-10-15 | Jason T Adelman | Director | M | +20,000 | +$105.40K |
| 2025-10-15 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | M | +8,000 | +$39.47K |
| 2025-07-09 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | +10,000 deriv. | — |
| 2025-07-09 | Hwee Poh Lim | SR CORP VP AND COO (TESTING) | A | +10,000 deriv. | — |
| 2025-03-27 | Siew Wai Yong | CHAIRMAN AND CEO | A | +40,000 deriv. | — |
| 2025-03-27 | Hock Ming Ting | Director | A | +30,000 deriv. | — |
| 2025-03-27 | Richard M Horowitz | Director | A | +35,000 deriv. | — |
| 2025-03-27 | Jason T Adelman | Director | A | +35,000 deriv. | — |
| 2025-03-17 | Richard M Horowitz | Director | M | +20,000 | +$50.60K |
| 2025-02-28 | Jason T Adelman | Director | Sell | −12,000 | −$82.13K |
| 2024-10-21 | Jason T Adelman | Director | Sell | −6,000 | −$44.10K |
| 2024-07-10 | Hwee Poh Lim | SENIOR CORPORATE VP AND COO | A | +10,000 deriv. | — |
| 2024-07-10 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | +10,000 deriv. | — |
| 2024-04-09 | Richard M Horowitz | Director | M | +20,000 | +$65.60K |
| 2024-04-05 | Jason T Adelman | Director | M | +20,000 | +$65.60K |
| 2024-03-18 | A Charles Wilson | 10%+ Owner | M | +40,000 | — |
| 2024-01-22 | Hock Ming Ting | Director | M | +9,000 | +$40.55K |
| 2024-01-18 | Hock Ming Ting | Director | A | +30,000 deriv. | — |
| 2024-01-18 | Anitha Srinivasan | CHIEF FINANCIAL OFFICER | A | +10,000 deriv. | — |
| 2024-01-18 | Jason T Adelman | Director | A | +35,000 deriv. | — |
| 2024-01-18 | Richard M Horowitz | Director | A | +35,000 deriv. | — |
| 2024-01-18 | Hwee Poh Lim | SENIOR CORPORATE VP AND COO | A | +12,500 deriv. | — |
| 2024-01-18 | Siew Wai Yong | CHAIRMAN AND CEO | A | +40,000 deriv. | — |
| 2023-12-14 | Siew Kuan Soon | CORPORATE VICE PRESIDENT | M | +500 | +$1.86K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Richard M Horowitz | Director | 1,333,512 | $6.55M |
| Siew Wai Yong | CHAIRMAN AND CEO | 1,310,247 | $6.44M |
| Hwee Poh Lim | SR CORP VP AND COO (TESTING) | 171,466 | $842.76K |
| Jason T Adelman | Director | 145,094 | $713.14K |
| Hock Ming Ting | Director | 131,044 | $644.08K |
| Anitha Srinivasan | CHIEF FINANCIAL OFFICER | 40,022 | $196.71K |
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.
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.