Trio-Tech International (TRT) Insider Ownership

Historic Insider Ownership Trends

As of April 25, 2026, the three largest insider holders of TRT are Siew Wai Yong (President And Ceo, 1.26Mn shares), Siew Wai Yong (President And Ceo, 1.26Mn shares), Siew Wai Yong (President And Ceo, 1.26Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Siew Wai Yong President And Ceo 1,260,247 0 29 Jan, 2026
Siew Wai Yong President And Ceo 1,260,247 0 29 Jan, 2026
Siew Wai Yong President And Ceo 1,260,247 0 29 Jan, 2026
Siew Wai Yong President And Ceo 1,260,247 0 29 Jan, 2026
Richard M Horowitz - 661,556 0 18 Feb, 2026
Richard M Horowitz - 621,500 0 09 Jan, 2026
Siew Wai Yong President And Ceo 1,108,136 0 16 Nov, 2021
Siew Wai Yong President And Ceo 1,108,136 0 16 Nov, 2021
Siew Wai Yong President And Ceo 1,108,136 0 16 Nov, 2021
Siew Wai Yong President And Ceo 1,108,136 0 16 Nov, 2021
A Charles Wilson - 871,000 0 15 Mar, 2024
A Charles Wilson - 871,000 0 15 Mar, 2024
A Charles Wilson - 871,000 0 15 Mar, 2024
A Charles Wilson - 871,000 0 15 Mar, 2024
Hock Ming Ting Vice President, Cfo 154,044 0 17 Apr, 2026
Hock Ming Ting Vice President, Cfo 148,244 0 21 Apr, 2026
Hwee Poh Lim Vice President 171,466 0 01 Aug, 2022
Jason T Adelman - 76,000 0 15 Oct, 2025
Anitha Srinivasan Chief Financial Officer 26,015 0 26 Feb, 2026
Siew Kuan Soon Corporate Vice President 50,200 0 13 Dec, 2023
Siew Kuan Soon Corporate Vice President 44,700 0 10 Dec, 2021
Anitha Srinivasan Chief Financial Officer 19,000 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Apr, 2026 Hock Ming Ting TRT Common Stock D 3,800 $7.08 150,244 D S
20 Apr, 2026 Hock Ming Ting TRT Common Stock D 2,000 $7.13 148,244 D S
15 Apr, 2026 Hock Ming Ting Common Stock D 3,000 $6.99 158,044 D S
16 Apr, 2026 Hock Ming Ting Common Stock D 4,000 $7.04 154,044 D S
13 Apr, 2026 Hock Ming Ting Common Stock D 6,000 $6.73 173,644 D S
14 Apr, 2026 Hock Ming Ting Common Stock D 12,600 $6.93 161,044 D S
09 Apr, 2026 Hock Ming Ting TRT Common Stock D 4,000 $6.78 179,644 D S
25 Feb, 2026 Anitha Srinivasan TRT Common Stock A 7,015 $3.09 26,015 D M
25 Feb, 2026 Anitha Srinivasan Common Stock (Right to Buy) D 7,015 $0.00 3,001 D M
17 Feb, 2026 Richard M Horowitz TRT Common Stock A 40,056 $2.64 661,556 D M
17 Feb, 2026 Richard M Horowitz Common Stock (Right to Buy) D 40,056 $0.00 0 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock A 80,111 $2.64 1,260,247 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock A 80,111 $2.64 1,260,247 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock A 80,111 $2.64 1,260,247 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock A 80,111 $2.64 1,260,247 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock (Right to buy) D 8,011 $0.00 0 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock (Right to buy) D 8,011 $0.00 0 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock (Right to buy) D 8,011 $0.00 0 D M
27 Jan, 2026 Siew Wai Yong TRT Common Stock (Right to buy) D 8,011 $0.00 0 D M
15 Jan, 2026 Hock Ming Ting Common Stock D 3,000 $6.90 186,714 D S