Trio-Tech International
TRT · NYSE American
$5.07−$0.03 (−0.59%)TodayMarket closed ·
Prev close $5.10
Who owns TRT
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 45.7% of TRT’s shares.
- Yong (Siew Wai)12.5%
- Wilson (A Charles)8.6%
- Horowitz (Richard M)6.6%
- Renaissance Technologies LLC3.5%
- Next 6 largest institutions14.5%
- All other shareholders54.3%
| Holder | Shares | % of shares |
|---|---|---|
| Yong (Siew Wai) | 1.26M | 12.47% |
| Wilson (A Charles) | 871.00K | 8.62% |
| Horowitz (Richard M) | 664.78K | 6.58% |
| Renaissance Technologies LLC | 356.86K | 3.53% |
| Atomi Financial Group, Inc. | 334.90K | 3.31% |
| Vanguard Capital Management, LLC | 307.48K | 3.04% |
| Lim (Hwee poh) | 231.27K | 2.29% |
| Adelman (Jason T) | 213.87K | 2.12% |
| Dimensional Fund Advisors, L.P. | 190.14K | 1.88% |
| Jane Street Capital, L.L.C. | 188.75K | 1.87% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 217.57K | 2.15% |
| Vanguard Extended Market Index Fund | 82.11K | 0.81% |
| DFA US Small Cap Value Portfolio | 63.33K | 0.63% |
| EA Bridgeway Ultra-Small Company Market ETF | 41.10K | 0.41% |
| Fidelity Extended Market Index Fund | 32.04K | 0.32% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $2.49M (11 trades) of TRT on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| YONG SIEW WAI | Option exercise | 50.00K | — |
| YONG SIEW WAI | Option exercise | 50.00K | $194.00K |
| Srinivasan Anitha | Option exercise | 8.01K | — |
| Srinivasan Anitha | Option exercise | 8.01K | $20.09K |
| Srinivasan Anitha | Option exercise | 3.00K | — |
| Srinivasan Anitha | Option exercise | 3.00K | — |
| Srinivasan Anitha | Option exercise | 3.00K | $7.32K |
| Srinivasan Anitha | Option exercise | 3.00K | $7.77K |
| Srinivasan Anitha | Award | 5.00K | — |
| LIM HWEE POH | Award | 5.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.12M
- Days to cover
- 1.70
- % of shares outstanding
- 11.04%
- Average daily volume
- 656.35K
- Change since last report
- +29.3%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.