Raluca Dinu - Aug 11, 2025 Form 4 Insider Report for QT IMAGING HOLDINGS, INC. (QTIH)

Role: Chief Executive Officer, Director
Signature: /s/ Dr. Raluca Dinu
Stock symbol: QTIH
Transactions as of: Aug 11, 2025
Transactions value $: $0
Form type: 4
Date filed: 8/13/2025, 09:07 PM
Previous filing: Apr 23, 2025
Next filing: Sep 2, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Dinu Raluca	Chief Executive Officer, Director	C/O QT IMAGING HOLDINGS, INC., 3 HAMILTON LANDING SUITE 160, NOVATO	/s/ Dr. Raluca Dinu	2025-08-13	0001430575

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	QTIH	Stock Option (right to buy)	Award	$0	+25K		$0.00	25K	Aug 11, 2025	Common Stock	25K	$1.90	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.