According to recent filings covering the 90 days ending January 16, 2026, the three most significant insider holders at Trio-Tech International are President And Ceo Siew Wai Yong (1.18Mn shares), TenPercentOwner A Charles Wilson (871.00K shares), Director Richard M Horowitz (621.50K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Richard M Horowitz | 621,500 | 09 Jan, 2026 | |
| Siew Wai Yong | President And Ceo | 1,180,136 | 01 Dec, 2023 |
| A Charles Wilson | 871,000 | 18 Mar, 2024 | |
| Hock Ming Ting | 189,714 | 14 Jan, 2026 | |
| Hwee Poh Lim | Vice President | 171,466 | 01 Aug, 2022 |
| Jason T Adelman | 76,000 | 15 Oct, 2025 | |
| Siew Kuan Soon | Corporate Vice President | 50,200 | 14 Dec, 2023 |
| Anitha Srinivasan | Chief Financial Officer | 19,000 | 15 Oct, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Jan, 2026 | Hock Ming Ting | TRT Common Stock | D | 5,000 | $7.08 | 189,714 | D | S |
| 07 Jan, 2026 | Hock Ming Ting | TRT Common Stock | A | 2,000 | $7.47 | 195,314 | D | S |
| 07 Jan, 2026 | Hock Ming Ting | TRT Common Stock | A | 2,000 | $7.20 | 199,314 | D | S |
| 07 Jan, 2026 | Hock Ming Ting | TRT Common Stock | A | 2,000 | $7.38 | 197,314 | D | S |
| 07 Jan, 2026 | Hock Ming Ting | TRT Common Stock | A | 600 | $7.52 | 194,714 | D | S |
| 07 Jan, 2026 | Richard M Horowitz | Common Stock | D | 7,500 | $7.50 | 621,500 | D | S |
| 13 Oct, 2025 | Jason T Adelman | Common Stock | A | 20,000 | $5.27 | 76,000 | D | M |
| 13 Oct, 2025 | Anitha Srinivasan | - | - | 19,000 | D | |||
| 13 Oct, 2025 | Anitha Srinivasan | - | - | 12,000 | D | |||
| 13 Oct, 2025 | Anitha Srinivasan | Common Stock | A | 3,500 | $5.01 | 19,000 | D | M |
| 13 Oct, 2025 | Anitha Srinivasan | Common Stock | A | 4,500 | $4.88 | 12,000 | D | M |
| 13 Mar, 2025 | Richard M Horowitz | - | - | 790,728 | D | |||
| 13 Mar, 2025 | Richard M Horowitz | TRT Common Stock | A | 20,000 | $2.53 | 790,728 | D | M |
| 17 Oct, 2024 | Jason T Adelman | - | - | 48,000 | D | |||
| 17 Oct, 2024 | Jason T Adelman | Common Stock | D | 3,000 | $7.40 | 48,000 | D | S |
| 16 Oct, 2024 | Jason T Adelman | - | - | 54,000 | D | |||
| 16 Oct, 2024 | Jason T Adelman | Common Stock | D | 3,000 | $7.30 | 54,000 | D | S |
| 08 Apr, 2024 | Richard M Horowitz | - | - | 750,728 | D | |||
| 08 Apr, 2024 | Richard M Horowitz | TRT Common Stock | A | 20,000 | $3.28 | 750,728 | D | M |
| 03 Apr, 2024 | Jason T Adelman | Common Stock | A | 20,000 | $3.28 | 60,000 | D | M |