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Notice of Proposed Sale · 144

Trio-Tech International

TRTNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Sep 28, 2026Accepted Sep 28, 2026, 12:15 PM EDTFiling CIK 1247606Accession 0001949846-26-000598
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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
TRIO-TECH INTERNATIONAL
Issuer CIK
0000732026
SEC file number
001-14523
Phone
818-787-7000
Person for whose account securities are to be sold
HOROWITZ RICHARD M
Relationships to issuer
10% Stockholder
Street
16139 WYANDOTTE ST.
City
VAN NUYS
State / country code
CA
Postal code
91406

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common91,173573,478.1710,384,69809/28/2026NASDAQCharles Schwab & Co. Inc.

Broker / market maker — proposed row 1, entry 1

Name
Charles Schwab & Co. Inc.
Street
3000 Schwab Way
City
Westlake
State / country code
TX
Postal code
76262

Acquisition of securities to be sold

Acquisition of securities to be sold · 10 reported rows
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common10/07/2008Open Market PurchaseOpen Market7,748N10/07/2008Cash
Common10/08/2008Open Market PurchaseOpen Market4,000N10/08/2008Cash
Common10/08/2008Open Market PurchaseOpen Market5,600N10/08/2008Cash
Common07/20/2009Open Market PurchaseOpen Market2,200N07/20/2009Cash
Common07/29/2009Open Market PurchaseOpen Market4,200N07/29/2009Cash
Comomn09/28/2011Open Market PurchaseOpen Market2,000N09/28/2011Cash
Common02/01/2019Stock Option ExerciseIssuer15,425N02/01/2019Equity Compensation
Common12/10/2021Stock Option ExerciseIssuer20,000N12/10/2021Equity Compensation
Common02/01/2022Stock Option ExerciseIssuer20,000N02/01/2022Equity Compensation
Common02/09/2022Stock Option ExerciseIssuer10,000N02/09/2022Equity Compensation

Prior-sale reporting

Nothing to report for the preceding three months
Y

Remarks

R HOROWITZ & B HOROWITZ TTEE THE HOROWITZ FAMILY TRUST U/A DTD 02/19/1986 On Behalf of: Richard M Horowitz

Notice signature

Notice date
09/28/2026
Signed
RIchard M Horowitz

Company context

Current securities

Historical securities (1)

Recent company filings

  1. Results of Operations and Financial ConditionSep 24, 2026
  2. 10-K filingSep 24, 2026
  3. CERT filingSep 15, 2026
  4. 25 filingSep 15, 2026
  5. 8-A12B filingSep 15, 2026

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