Trio-Tech International (TRT) ownership: A.Charles Wilson 22% · institutions 19% · index and ETF funds 2% (13F 2026-03-31). Insider activity, 90 days: 2 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Compound Planning, Inc. | 621500.00 | $3.59M | 6.1% | 2026-03-31 |
| Renaissance Technologies | 325526.00 | $1.88M | 3.2% | 2026-03-31 |
| Vanguard | 291756.00 | $1.69M | 2.9% | 2026-03-31 |
| Dimensional Fund Advisors | 243724.00 | $1.41M | 2.4% | 2026-03-31 |
| Bridgeway Capital Management, LLC | 142082.00 | $821234.00 | 1.4% | 2026-03-31 |
| Acadian Asset Management | 86308.00 | $497000.00 | 0.9% | 2026-03-31 |
| Marshall Wace | 61968.00 | $358174.00 | 0.6% | 2026-03-31 |
| Geode Capital Management | 55193.00 | $319123.00 | 0.5% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-27 | |
| Sell | null | 2026-07-27 | |
| Sell | null | 2026-07-27 | |
| Sell | null | 2026-07-27 | |
| Sell | null | 2026-07-07 | |
| Sell | null | 2026-07-07 | |
| Sell | null | 2026-06-18 | |
| Sell | null | 2026-06-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.