Trio-Tech International has 4 Schedule 13D or 13G filings on record since 2026-01-21. 2 holders' latest filing reports 5% or more of common stock, no par value. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Yong Siew Wai | 16.9% | 1,470,290 | SCHEDULE 13D/A, 2026-01-29 | 2026-01-27 |
| Horowitz Richard M | 8.6% | 902,353 | SCHEDULE 13D/A, 2026-06-25 | 2025-12-16 |
| Zeff Capital, LP | 1.28% | 127,856 | SCHEDULE 13G/A, 2026-05-01 | 2026-04-22 |
Purpose of Transaction (Item 4)
Yong Siew Wai
Mr. Yong holds the shares of Company Common Stock beneficially owned and deemed to be beneficially owned by him for investment. The Reporting Person has no current plans or proposals which relate to or would result in any of the matters described in paragraphs (a) though (j) of Item 4 of Schedule 13D. Mr. Yong may in the future acquire additional shares of Common Stock or other Issuer securities or dispose of some or all of the shares of Common Stock or other securities held by the Reporting Person in open-market transactions or privately negotiated transactions, on such terms and at such times as the Reporting Person may deem advisable subject to applicable securities law and regulations.Item 4 of the SCHEDULE 13D/A filed 2026-01-29
Horowitz Richard M
Mr. Horowitz holds the shares of Company Common Stock beneficially owned and deemed to be beneficially owned by him for investment. The Reporting Person has no current plans or proposals which relate to or would result in any of the matters described in paragraphs (a) though (j) of Item 4 of Schedule 13D. Mr. Horowitz may in the future acquire additional shares of Common Stock or other Issuer securities or dispose of some or all of the shares of Common Stock or other securities held by the Reporting Person in open-market transactions or privately negotiated transactions, on such terms and at such times as the Reporting Person may deem advisable subject to applicable securities law and regulations.Item 4 of the SCHEDULE 13D/A filed 2026-06-25
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-01-21 | Zeff Capital, LP | 5.9% | SCHEDULE 13G/A |
| 2026-01-29 | Yong Siew Wai | 16.9% | SCHEDULE 13D/A |
| 2026-05-01 | Zeff Capital, LP | 1.28% | SCHEDULE 13G/A |
| 2026-06-25 | Horowitz Richard M | 8.6% | SCHEDULE 13D/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.