Who
Siew Wai Yong
Chairman and CEO
Company insider
Files Form 4 as: Chairman and CEO, Trio-Tech International.
In numbers
- Trades disclosed
- 89
- Buys
- 0
- Sells
- 9
- Bought
- $0
- Sold
- $1.1M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 4 Jan 2006
- Last trade
- 28 Sep 2026
- Last filed
- 29 Sep 2026
Companies traded
Activity over time
1 Dec 2024 – 1 Nov 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 28 Sep 2026filed 29 Sep 2026 | Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $194K50,000 at $3.88 | filing |
| 28 Sep 2026filed 29 Sep 2026 | Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —50,000 at $0.00 | filing |
| 28 Sep 2026filed 29 Sep 2026 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —50,000 at $0.00 | filing |
| 28 Sep 2026filed 29 Sep 2026 | TRT Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $194K50,000 at $3.88 | filing |
| 27 Jan 2026filed 29 Jan 2026 | Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $211K80,111 at $2.64 | filing |
| 27 Jan 2026filed 29 Jan 2026 | Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —8,011 at $0.00 | filing |
| 27 Jan 2026filed 29 Jan 2026 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —8,011 at $0.00 | filing |
| 27 Jan 2026filed 29 Jan 2026 | TRT Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $211K80,111 at $2.64 | filing |
| 9 Jan 2026filed 13 Jan 2026 | Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | —80,000 at $0.00 | filing |
| 9 Jan 2026filed 13 Jan 2026 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | —80,000 at $0.00 | filing |
| 26 Mar 2025filed 27 Mar 2025 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 16 Jan 2024filed 18 Jan 2024 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | —40,000 at $0.00 | filing |
| 29 Nov 2023filed 1 Dec 2023 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —40,000 at $0.00 | filing |
| 29 Nov 2023filed 1 Dec 2023 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —20,000 at $0.00 | filing |
| 29 Nov 2023filed 1 Dec 2023 | TRT Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $131K40,000 at $3.28 | filing |
| 29 Nov 2023filed 1 Dec 2023 | TRT Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $51K20,000 at $2.53 | filing |
| 22 Mar 2023filed 24 Mar 2023 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | —30,000 at $0.00 | filing |
| 24 Mar 2022filed 28 Mar 2022 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code A | $194K25,000 at $7.76 | filing |
| 15 Feb 2022filed 15 Feb 2022 | TRT Trio-Tech Internationaloption or derivative · Semiconductor Equipment | SEC FORM 4 Code M | —25,000 at $0.00 | filing |
| 15 Feb 2022filed 15 Feb 2022 | TRT Trio-Tech InternationalSemiconductor Equipment | SEC FORM 4 Code M | $104K25,000 at $4.14 | filing |
News
No headline names them, or the companies they trade most, lately.