Trio-Tech International (TRT) insider trading
6 directors and officers declare holding shares of Trio-Tech International (TRT), each in their own filing with the SEC. The largest is Siew Wai Yong (CHAIRMAN AND CEO · Director · 10% owner) with 1.3M shares, 12.6% of the company, worth $7.5M at the last close. The most recent move on file: Siew Wai Yong bought 50,000 shares at $3.88 on Sep 28, 2026. Of the 5 with a trade on file, 2 last bought and 3 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Siew Wai Yong | CHAIRMAN AND CEO · Director · 10% owner | 1.3M | 12.6% | $7.5M | bought 50,000 shares at $3.88 on Sep 28, 2026 | Sep 28, 2026 |
| Richard M. Horowitz | Director · 10% owner | 664,784 | 6.4% | $3.8M | sold 67,500 shares at $18.10 on May 18, 2026 | May 18, 2026 |
| Hwee Poh Lim | SR CORP VP AND COO (TESTING) | 231,268 | 2.2% | $1.3M | — | Apr 29, 2026 |
| Jason T. Adelman | Director | 210,094 | 2.0% | $1.2M | sold 10,000 shares at $15.84 on Jun 18, 2026 | Jun 23, 2026 |
| Hock Ming Ting | Director | 131,044 | 1.3% | $745,640.36 | sold 17,200 shares at $16.65 on May 26, 2026 | May 26, 2026 |
| Anitha Srinivasan | CHIEF FINANCIAL OFFICER | 40,022 | 0.39% | $227,725.18 | bought 8,005 shares at $2.51 on Sep 28, 2026 | Sep 28, 2026 |
Each insider at Trio-Tech International
- Siew Wai Yong — CHAIRMAN AND CEO · Director · 10% owner
- Richard M. Horowitz — Director · 10% owner
- Hwee Poh Lim — SR CORP VP AND COO (TESTING)
- Jason T. Adelman — Director
- Hock Ming Ting — Director
- Anitha Srinivasan — CHIEF FINANCIAL OFFICER
What insiders bought and sold across AI stocks · All filings on sec.gov