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KLOCK JOHN C JR

Disclosed activity across 1 company

Tapewire entity
56377
SEC CIK
0000939568

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
QT IMAGING HOLDINGS, INC.QTI · Entity 7298Director · 10% ownerMarch 20, 2026March 24, 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.

QT IMAGING HOLDINGS, INC.

Report date March 20, 2026 · Filed March 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect3,500 Reported balance After 2026-03-20 transaction · row 1
1 source row

Row 1 · 2026-03-20 · Grant · Acquired 3,500 · Balance 3,500

F1: Subject to the Reporting Person's continued service to QT Imaging Holdings, Inc. (the "Company"), twenty-five percent of the Restricted Stock Unit ("RSU") will vest on each of May 15, 2026, August 15, 2026, November 15, 2026, and February 15, 2027; all RSUs shall immediately vest in the event of a Change of Control (as defined in the QT Imaging Holdings, Inc. 2024 Equity Incentive Plan) of the Company.

Filing footnotes · ownership attribution and instrument terms

F1: Subject to the Reporting Person's continued service to QT Imaging Holdings, Inc. (the "Company"), twenty-five percent of the Restricted Stock Unit ("RSU") will vest on each of May 15, 2026, August 15, 2026, November 15, 2026, and February 15, 2027; all RSUs shall immediately vest in the event of a Change of Control (as defined in the QT Imaging Holdings, Inc. 2024 Equity Incentive Plan) of the Company.

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
March 20, 2026 Filed Mar 24, 2026 21:32 UTC QT IMAGING HOLDINGS, INC. QTI · Entity 7298 GrantCommon Stock 3,500 $0.00 $0.00
Disclosure

SEC source: 0000939568-26-000002 · form4.xml · nonDerivative · entry 1

KLOCK JOHN C JR · CIK 0000939568 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,500

F1 · shares: Subject to the Reporting Person's continued service to QT Imaging Holdings, Inc. (the "Company"), twenty-five percent of the Restricted Stock Unit ("RSU") will vest on each of May 15, 2026, August 15, 2026, November 15, 2026, and February 15, 2027; all RSUs shall immediately vest in the event of a Change of Control (as defined in the QT Imaging Holdings, Inc. 2024 Equity Incentive Plan) of the Company.

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August 11, 2025 Filed Aug 13, 2025 21:12 UTC QT IMAGING HOLDINGS, INC. QTI · Entity 7298 GrantStock Option (right to buy) · Derivative 25,000 $0.00 Strike: $1.90 $0.00
Disclosure

SEC source: 0001062993-25-014344 · form4.xml · derivative · entry 1

KLOCK JOHN C JR · CIK 0000939568 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2035-08-11

F1 · derivative.exercise_date: One-third of the grant will vest on August 15, 2026, and the remaining two-thirds will vest in eight equal quarterly installments on each subsequent November 15, February 15, May 15, and August 15, such that the grant will be fully vested on August 15, 2028, subject to continued service with the Issuer through each vesting date.

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July 03, 2024 Filed Jul 10, 2024 12:29 UTC QT IMAGING HOLDINGS, INC. QTI · Entity 7298 GrantStock Option (right to buy) · Derivative 40,000 $0.00 Strike: $0.75 $0.00
Disclosure

SEC source: 0001062993-24-013628 · form4.xml · derivative · entry 2

KLOCK JOHN C JR · CIK 0000939568 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-07-03

F2 · derivative.exercise_date: One-third of the option will vest on February 15, 2025, and the remaining two thirds will vest in eight equal quarterly installments on each subsequent May 15, August 15, November 15 and February 15, such that the option will be fully vested on February 15, 2027, subject to the Reporting Person's continued service to the Issuer, through each vesting date.

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March 04, 2024 Filed Mar 6, 2024 20:54 UTC QT IMAGING HOLDINGS, INC. QTI · Entity 7298 GrantCommon Stock 2,881,140 Not disclosed Not disclosed
Disclosure

SEC source: 0001062993-24-005806 · form4.xml · nonDerivative · entry 1

KLOCK JOHN C JR · CIK 0000939568 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By John C. Klock, Jr. and Cynthia L. Klock Trust Dated 7/27/07

Disclosed balance after: 2,881,140

F1 · price: Received in exchange for 8,407,114 shares of QT Imaging, Inc. ("QT Imaging") in connection with the merger of QT Imaging into a subsidiary of QT Imaging Holdings, Inc. (the "Company") pursuant to the exchange ratio set forth in the business combination agreement between QT Imaging and the Company. The closing price of the Company's Common Stock on the effective date of the merger was $3.53.

F2 · ownership.direct: The Common Stock are held directly by John C. Klock, Jr. and Cynthia L. Klock Trust Dated 7/27/07 (the "Trust"). The Common Stock held by the Trust are beneficially owned jointly by Dr. John C. Klock, Jr., the Company's Chief Executive Officer and Director and Cynthia L. Klock, wife of Dr. John C. Klock, Jr., who jointly have sole voting and dispositive power over the shares held by the Trust.

F2 · ownership.nature: The Common Stock are held directly by John C. Klock, Jr. and Cynthia L. Klock Trust Dated 7/27/07 (the "Trust"). The Common Stock held by the Trust are beneficially owned jointly by Dr. John C. Klock, Jr., the Company's Chief Executive Officer and Director and Cynthia L. Klock, wife of Dr. John C. Klock, Jr., who jointly have sole voting and dispositive power over the shares held by the Trust.

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