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.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
13
code S
Reporting Insiders
8
current holders
TRT — Recent Form 4 Transactions (latest 2026-07-29)
FiledInsiderRole TypeSharesValue
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
TRT — Current Insider Holders
InsiderRole Shares HeldValue
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
How to read Form 4 activity

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.