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HOROWITZ RICHARD M

Disclosed activity across 1 company

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44028
SEC CIK
0001247606

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
TRIO-TECH INTERNATIONALTRT · Entity 8809Director · 10% ownerMay 18, 2026May 27, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

TRIO-TECH INTERNATIONAL

Report date May 18, 2026 · Filed May 27, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect664,784 Reported balance After 2026-05-18 transaction · row 1
1 source row

Row 1 · 2026-05-18 · Sale · Disposed 67,500 · Balance 664,784

F1: The price reported in Column 4 is a weighted average price.The shares were sold in multiple transactions at prices ranging from $18.10 to $18.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price.The shares were sold in multiple transactions at prices ranging from $18.10 to $18.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 18, 2026 Filed May 27, 2026 21:01 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleCommon Stock 67,500 $18.10 $1,221,770.25
Disclosure

SEC source: 0001247606-26-000008 · form4-05272026_090502.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 664,784

F1 · price: The price reported in Column 4 is a weighted average price.The shares were sold in multiple transactions at prices ranging from $18.10 to $18.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

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February 17, 2026 Filed Feb 18, 2026 14:53 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 40,056 $0.00 Strike: $2.64 $0.00
Disclosure

SEC source: 0001247606-26-000006 · form4-02182026_020211.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 40,056 shares

Expires 2026-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 17, 2026 Filed Feb 18, 2026 14:53 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionTRT Common Stock 40,056 $2.64 $105,747.84
Disclosure

SEC source: 0001247606-26-000006 · form4-02182026_020211.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 661,556

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 09, 2026 Filed Jan 13, 2026 15:52 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 70,000 $0.00 Strike: $6.92 $0.00
Disclosure

SEC source: 0001247606-26-000004 · form4-01132026_030141.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 70,000 shares

Expires 2031-01-08

F1 · derivative.exercise_date: 8,750 of the stock options vest on the date of the grant, with the remainder vesting equally over seven quarterly installments thereafter.

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January 07, 2026 Filed Jan 9, 2026 21:14 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleCommon Stock 7,500 $7.50 $56,277.75
Disclosure

SEC source: 0001247606-26-000002 · form4-01092026_090146.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 621,500

Read SEC document
March 26, 2025 Filed Mar 28, 2025 01:35 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 35,000 $0.00 Strike: $6.22 $0.00
Disclosure

SEC source: 0001415889-25-009166 · form4-03282025_010338.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2030-03-25

Read SEC document
March 13, 2025 Filed Mar 17, 2025 12:39 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 20,000 $0.00 Strike: $2.53 $0.00
Disclosure

SEC source: 0001415889-25-008175 · form4-03172025_120319.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2025-03-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 13, 2025 Filed Mar 17, 2025 12:39 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionTRT Common Stock 20,000 $2.53 $50,600.00
Disclosure

SEC source: 0001415889-25-008175 · form4-03172025_120319.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 395,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 08, 2024 Filed Apr 9, 2024 12:52 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 20,000 $0.00 Strike: $3.28 $0.00
Disclosure

SEC source: 0001415889-24-010536 · form4-04092024_120432.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2024-04-10

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 08, 2024 Filed Apr 9, 2024 12:52 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionTRT Common Stock 20,000 $3.28 $65,600.00
Disclosure

SEC source: 0001415889-24-010536 · form4-04092024_120432.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 375,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 16, 2024 Filed Jan 18, 2024 18:25 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 35,000 $0.00 Strike: $5.01 $0.00
Disclosure

SEC source: 0001415889-24-001461 · form4-01182024_060152.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2029-01-15

Read SEC document
March 22, 2023 Filed Mar 24, 2023 13:43 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $0.00 Strike: $4.51 $0.00
Disclosure

SEC source: 0001415889-23-005376 · form4-03242023_010313.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2028-03-21

Read SEC document
March 24, 2022 Filed Mar 28, 2022 10:09 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $7.76 Strike: $7.76 $155,200.00
Disclosure

SEC source: 0001415889-22-003386 · form4-03282022_030350.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2027-03-23

Read SEC document
March 02, 2022 Filed Mar 2, 2022 11:26 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 12,500 $0.00 Strike: $4.14 $0.00
Disclosure

SEC source: 0001415889-22-002088 · form4-03022022_030341.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,500 shares

Expires 2022-03-29

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 02, 2022 Filed Mar 2, 2022 11:26 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionTRT Common Stock 12,500 $4.14 $51,750.00
Disclosure

SEC source: 0001415889-22-002088 · form4-03022022_030341.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 355,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 29, 2021 Filed Nov 30, 2021 14:41 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleTRT Common Stock 20,000 $9.98 $199,600.00
Disclosure

SEC source: 0001415889-21-005572 · form4-11302021_061148.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 342,864

Read SEC document
November 19, 2021 Filed Nov 26, 2021 15:51 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleCommon Stock 9,000 $8.86 $79,749.00
Disclosure

SEC source: 0001415889-21-005526 · form4-11262021_071112.xml · nonDerivative · entry 3

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 362,864

Read SEC document
November 19, 2021 Filed Nov 26, 2021 15:51 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleCommon Stock 5,000 $8.85 $44,260.00
Disclosure

SEC source: 0001415889-21-005526 · form4-11262021_071112.xml · nonDerivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 371,864

Read SEC document
November 19, 2021 Filed Nov 26, 2021 15:51 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 SaleCommon Stock 5,000 $8.96 $44,790.00
Disclosure

SEC source: 0001415889-21-005526 · form4-11262021_071112.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 376,864

Read SEC document
March 13, 2021 Filed Mar 16, 2021 15:00 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 25,000 $0.00 Strike: $3.26 $0.00
Disclosure

SEC source: 0001415889-21-001501 · form4-03162021_110302.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,000 shares

Expires 2021-03-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 13, 2021 Filed Mar 16, 2021 15:00 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock 25,000 $3.26 $81,500.00
Disclosure

SEC source: 0001415889-21-001501 · form4-03162021_110302.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 381,864

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 19, 2021 Filed Feb 24, 2021 15:30 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $5.27 Strike: $5.27 $105,400.00
Disclosure

SEC source: 0001415889-21-000914 · form4-02242021_100210.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2026-02-18

Read SEC document
September 18, 2020 Filed Sep 21, 2020 14:00 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (Right to Buy) · Derivative 12,500 $0.00 Strike: $2.69 $0.00
Disclosure

SEC source: 0001415889-20-002329 · form4-09212020_100902.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,500 shares

Expires 2020-10-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
September 18, 2020 Filed Sep 21, 2020 14:00 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock 12,500 $2.69 $33,625.00
Disclosure

SEC source: 0001415889-20-002329 · form4-09212020_100902.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 356,864

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 25, 2020 Filed Mar 26, 2020 15:57 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $2.53 Strike: $2.53 $50,600.00
Disclosure

SEC source: 0001415889-20-000850 · form4-03262020_080348.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2025-03-24

Read SEC document
April 11, 2019 Filed Apr 12, 2019 16:00 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $3.28 Strike: $3.28 $65,600.00
Disclosure

SEC source: 0001415889-19-000458 · form4-04122019_120402.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2024-04-10

Read SEC document
December 05, 2018 Filed Dec 6, 2018 13:58 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (right to buy) · Derivative Not disclosed $0.00 Strike: $3.10 $10,000.00
Disclosure

SEC source: 0001415889-18-001727 · form4-12062018_051204.xml · derivative · entry 2

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Common Stock · Not disclosed shares

Expires 2018-12-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 05, 2018 Filed Dec 6, 2018 13:58 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock 10,000 $3.10 $31,000.00
Disclosure

SEC source: 0001415889-18-001727 · form4-12062018_051204.xml · nonDerivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 05, 2018 Filed May 20, 2019 10:00 UTC Amendment TRIO-TECH INTERNATIONAL TRT · Entity 8809 Exercise / conversionCommon Stock (right to buy) · Derivative 10,000 $0.00 Strike: $3.10 $0.00
Disclosure

SEC source: 0001415889-19-000542 · form4a-05202019_060502.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2018-12-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: The original Form 4 correctly reported the number of shares in column 5 & column 7 of Table II but inadvertently had a dollar sign in front of the disclosure. This amendment corrects the original Form 4 to remove the inadvertent dollar sign.

Read SEC document
March 23, 2018 Filed Mar 27, 2018 17:15 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $5.98 Strike: $5.98 $119,600.00
Disclosure

SEC source: 0001415889-18-000438 · form4-03272018_100333.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2023-03-22

Read SEC document
March 23, 2018 Filed Apr 3, 2018 01:39 UTC Amendment TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 20,000 $5.98 Strike: $5.98 $119,600.00
Disclosure

SEC source: 0001415889-18-000524 · form4a-04022018_060452.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2023-03-22

Read SEC document
March 30, 2017 Filed Apr 3, 2017 14:47 UTC TRIO-TECH INTERNATIONAL TRT · Entity 8809 GrantCommon Stock (Right to Buy) · Derivative 12,500 $4.14 Strike: $4.14 $51,750.00
Disclosure

SEC source: 0001415889-17-000564 · form4-04032017_070405.xml · derivative · entry 1

HOROWITZ RICHARD M · CIK 0001247606 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Common Stock · 12,500 shares

Expires 2022-03-29

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.