Key facts
- This page summarizes Dr. Avi S. Katz's Form 4 filing for QT IMAGING HOLDINGS, INC. (QTIH).
- 2 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 23 Jan 2026, 19:56.
Dr. Avi S. Katz - 22 Jan 2026 Form 4 Insider Report for QT IMAGING HOLDINGS, INC. (QTIH)
- Reporting relationship
- CHAIRMAN, Director
- Issuer ticker
- QTIH
- Reported as of
- 22 Jan 2026
- Net transaction value
- +$155,008
- SEC form
- 4
- Accepted by SEC
- 23 Jan 2026, 19:56:06 UTC
- Prior SEC filing
- 17 Feb 2026
- Next SEC filing
- 26 Jan 2026
- Source filing
- View source filing
- Reporting owner signature
- /S/ DR. AVI KATZ
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Dr. Avi S. Katz filed Form 4 for QT IMAGING HOLDINGS, INC. (QTIH) on 23 Jan 2026.
Change
- Previous filing in this sequence was filed on 17 Feb 2026.
- Current net transaction value: +$155,008.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001451693
Primary reporting owner
Katz Avi S
- Relationship
- CHAIRMAN, Director
- Address
- C/O QT IMAGING HOLDINGS, INC., 3 HAMILTON LANDING, SUITE 160, NOVATO
- Signature
- /S/ DR. AVI KATZ
- Signature date
- 23 Jan 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
QTIH
transaction
COMMON STOCK
Purchase
- Transaction value
- $155,008
- Shares
- +24,107
- Change %
- +6.2%
- Price
- $6.43
- Shares after
- 413,452
- Date
- 22 Jan 2026
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
QTIH
transaction
Derivative
PRIVATE WARRANT
Purchase
- Transaction value
- $0
- Shares
- +48,214
- Change %
- Price
- $0.000000
- Shares after
- 48,214
- Date
- 22 Jan 2026
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 48,214
- Exercise price
- $6.43
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
The number of shares beneficially owned reflects the 3-for-1 reverse stock split effected October 23, 2025.