TRT · AMEX · Semiconductors

Trio-Tech International

Semiconductor burn-in equipment and testing alongside customized industrial test systems.

$10.01
After-hours close+0.01 (+0.09%)
At close$10.00(−4.58%)

Breakdown13F · Form 4

Institutions 21.42%Insiders

Shares outstanding 10.11M · Float 5.07M · 50.2% free float

A split settled inside the quarter being compared, so quarter-on-quarter change is not shown.

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
Yong Siew Wai1.47M16.90%13DJan 29, 2026
Horowitz Richard M902.4K8.60%13DJun 25, 2026
Atomi Financial Group, Inc.621.5K6.15%13FMay 14, 2026
Renaissance Technologies LLC325.5K3.22%13FMay 14, 2026
Vanguard Capital Management LLC264.3K2.61%13FMay 15, 2026

Institutions13F, as of Mar 31, 2026

26 holders · 2.17M shares

HolderShares% outstandingChg q/qFiled
Atomi Financial Group, Inc.621.5K6.15%May 14, 2026
Renaissance Technologies LLC325.5K3.22%May 14, 2026
Vanguard Capital Management LLC264.3K2.61%May 15, 2026
Dimensional Fund Advisors LP243.7K2.41%May 7, 2026
Bridgeway Capital Management, LLC142.1K1.40%May 15, 2026
Acadian Asset Management LLC86.3K0.85%May 13, 2026
Marshall Wace, LLP62.0K0.61%May 15, 2026
Geode Capital Management, LLC55.2K0.55%May 15, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Yong Siew Wai16.90%1.47M13DJan 29, 2026
Horowitz Richard M8.60%902.4K13DJun 25, 2026

InsidersForm 4

Latest trades

Nothing filed in the last 12 months.

CongressHouse and Senate disclosures

Not reported.