TRIO-TECH INTERNATIONAL (TRT)
Data as of , from SEC Form 4 filings.
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Jason T. AdelmanOpen-market sale$79K- Jason T. AdelmanOpen-market sale$74K
About TRIO-TECH INTERNATIONAL (TRT)
Trio-Tech International is a provider of reliability test equipment and services to the semiconductor and other industries. Its customers are from the automotive electronics, industrial electronics, computing and data storage, consumer electronics, and communication markets. The company operates its business in two segments: Semiconductor Back-end Solutions and Industrial Electronics. The company operates its business in two segments: Semiconductor Back-end Solutions and Industrial Electronics. Geographically, the Company operates in the United States (U.S.), Singapore, Malaysia, Thailand, and China.
- VAN NUYS, CA
- 946
- 1995
- XNAS
TRT Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Option exercise | 8 | 128,014 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
TRT insider transactions (Form 4)
6430 Form 4 filings on record, the earliest from Oct 21, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Siew Wai Yong - Officer | Option exercise | TRT Common Stock | 50,000 | $3.88 | $194K | |
| Siew Wai Yong - Officer | Option exercise | TRT Common Stock (Right to buy) | 50,000 | $0.00 | - | |
 Anitha Srinivasan - Officer | Option exercise | TRT Common Stock | 8,005 | $2.51 | $20K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 8,005 | $0.00 | - | |
| Anitha Srinivasan - Officer | Option exercise | TRT Common Stock | 3,000 | $2.59 | $8K | |
| Anitha Srinivasan - Officer | Option exercise | TRT Common Stock | 3,002 | $2.44 | $7K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 3,000 | $0.00 | - | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 3,002 | $0.00 | - | |
 Hwee Poh Lim - Officer | Grant or award | Common Stock (Right to Buy) | 5,000 | $0.00 | - | |
| Anitha Srinivasan - Officer | Grant or award | Common Stock (Right to Buy) | 5,000 | $0.00 | - | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,000 | $15.84 | $79K | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,000 | $14.88 | $74K | |
| Jason T. Adelman | Option exercise | Common Stock | 70,000 | $3.11 | $218K | |
| Jason T. Adelman | Option exercise | Common Stock (Right to Buy) | 70,000 | $0.00 | - | |
| Jason T. Adelman | Option exercise | Common Stock | 40,000 | $3.88 | $155K | |
| Jason T. Adelman | Option exercise | Common Stock | 70,094 | $2.57 | $180K | |
| Jason T. Adelman | Option exercise | Common Stock (Right to Buy) | 40,000 | $0.00 | - | |
| Jason T. Adelman | Option exercise | Common Stock (Right to Buy) | 70,094 | $0.00 | - | |
| Hock Ming Ting - Director | Open-market sale | TRT Common Stock | 17,200 | $16.65 footnote F1 | $286K | |
| ||||||
| Richard M. Horowitz | Open-market sale | Common Stock | 67,500 | $18.10 footnote F1 | $1.22M | |
| ||||||
| Jason T. Adelman | Option exercise | Common Stock | 39,750 | $2.25 | $89K | |
| Jason T. Adelman | Open-market sale | Common Stock | 10,000 | $18.76 | $188K | |
| Jason T. Adelman | Open-market sale | Common Stock | 10,000 | $18.11 | $181K | |
| Jason T. Adelman | Open-market sale | Common Stock | 10,000 | $16.57 | $166K | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,000 | $14.87 | $74K | |
| Jason T. Adelman | Open-market sale | Common Stock | 9,358 | $14.01 | $131K | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,617 | $13.97 | $78K | |
| Jason T. Adelman | Option exercise | Common Stock (Right to Buy) | 39,750 | $0.00 | - | |
| Jason T. Adelman | Open-market sale | Common Stock | 4,511 | $5.55 | $25K | |
| Jason T. Adelman | Open-market sale | Common Stock | 7,489 | $5.53 | $41K | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,000 | $5.82 | $29K | |
| Jason T. Adelman | Open-market sale | Common Stock | 5,000 | $5.61 | $28K | |
| Hock Ming Ting | Open-market sale | TRT Common Stock | 3,800 | $7.08 | $27K | |
| Hock Ming Ting | Open-market sale | TRT Common Stock | 2,000 | $7.13 | $14K | |
| Hock Ming Ting | Open-market sale | Common Stock | 3,000 | $6.99 | $21K | |
| Hock Ming Ting | Open-market sale | Common Stock | 4,000 | $7.04 footnote F1 | $28K | |
| ||||||
| Hock Ming Ting | Open-market sale | Common Stock | 6,000 | $6.73 footnote F1 | $40K | |
| Hock Ming Ting | Open-market sale | Common Stock | 12,600 | $6.93 footnote F2 | $87K | |
| ||||||
| Hock Ming Ting | Open-market sale | TRT Common Stock | 4,000 | $6.78 | $27K | |
| Anitha Srinivasan - Officer | Option exercise | TRT Common Stock | 7,015 | $3.09 | $22K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 7,015 | $0.00 | - | |
| Richard M. Horowitz | Option exercise | TRT Common Stock | 40,056 | $2.64 | $106K | |
| Richard M. Horowitz | Option exercise | Common Stock (Right to Buy) | 40,056 | $0.00 | - | |
| Siew Wai Yong - Officer | Option exercise | TRT Common Stock | 80,111 | $2.64 | $211K | |
| Siew Wai Yong - Officer | Option exercise | TRT Common Stock (Right to buy) | 8,011 | $0.00 | - | |
| Hock Ming Ting | Open-market sale | Common Stock | 3,000 | $6.90 | $21K | |
| Hock Ming Ting | Open-market sale | Common Stock | 3,000 | $6.63 | $20K | |
| Hock Ming Ting | Open-market sale | Common Stock | 70 | $6.78 | $475 | |
| Hock Ming Ting | Open-market sale | TRT Common Stock | 5,000 | $7.08 footnote F1 | $35K | |
| ||||||
| Siew Wai Yong - Officer | Grant or award | Common Stock (Right to Buy) | 80,000 | $0.00 | - | |
| Richard M. Horowitz | Grant or award | Common Stock (Right to Buy) | 70,000 | $0.00 | - | |
| Hock Ming Ting | Grant or award | Common Stock (Right to Buy) | 60,000 | $0.00 | - | |
| Jason T. Adelman | Grant or award | Common Stock (Right to Buy) | 70,000 | $0.00 | - | |
| Richard M. Horowitz | Open-market sale | Common Stock | 7,500 | $7.50 | $56K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock | 4,500 | $4.88 | $22K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock | 3,500 | $5.01 | $18K | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 4,500 | $0.00 | - | |
| Anitha Srinivasan - Officer | Option exercise | Common Stock (Right to Buy) | 3,500 | $0.00 | - | |
| Jason T. Adelman | Option exercise | Common Stock | 20,000 | $5.27 | $105K | |
| Jason T. Adelman | Option exercise | Common Stock | 20,000 | $0.00 | - | |
| Anitha Srinivasan - Officer | Grant or award | Common Stock (Right to Buy) | 10,000 | $0.00 | - | |
| Hwee Poh Lim - Officer | Grant or award | Common Stock (Right to Buy) | 10,000 | $0.00 | - | |
| Jason T. Adelman | Open-market sale | Common Stock | 3,000 | $7.30 | $22K | |
| Jason T. Adelman | Open-market sale | Common Stock | 3,000 | $7.40 | $22K | |
Item 2.02, 9.01
Item 3.01, 8.01, 9.01
Item 5.03, 9.01
Item 2.02, 9.01
Recent TRT Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| HOROWITZ RICHARD M | 10% Stockholder | 91,173 | $573K | View on EDGAR | |
| - | - | - |
TRT insider trading FAQ
What is the latest insider trade for TRT?
TRIO-TECH INTERNATIONAL (TRT) had 3 insider filings in the last 90 days, with the most recent on 2026-09-29. The full record for TRT runs to 30 Form 4 filings, the earliest from 2024-10-21. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying TRT stock?
No insider purchases of TRT were filed in the last 90 days.
How many insiders are selling TRT stock?
No insider sales of TRT were filed in the last 90 days. 28 sales are on record for this company.
Where can I see TRT SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects TRT Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Siew Wai Yong view on EDGAR
- - Anitha Srinivasan view on EDGAR
- - Anitha Srinivasan view on EDGAR
- - Hwee Poh Lim view on EDGAR
- - Anitha Srinivasan view on EDGAR
- - Jason T. Adelman view on EDGAR
- - Jason T. Adelman view on EDGAR
- - Hock Ming Ting view on EDGAR
- - Richard M. Horowitz view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Industrials
- Where TRT's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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