QT Imaging Holdings, Inc. SEC filings QTI

QT Imaging Holdings, Inc. has 430 filings in SEC EDGAR's recent list, going back to Feb 23, 2021. Its latest annual report, Form 10-K, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 31, 2026 (officer or director change). The company's fiscal year ends on December 31.

QT Imaging Holdings, Inc. SEC filings
Form Description Filed Period
S-8 Employee stock plan registration Sep 22, 2026 —
4 Insider transaction Aug 31, 2026 Aug 28, 2026
8-K Current report
Officer or director change
Aug 31, 2026 Aug 28, 2026
4 Insider transaction Aug 27, 2026 Jul 28, 2026
8-K Current report
Regulation FD disclosure
Aug 18, 2026 Aug 18, 2026
10-Q Quarterly report Aug 12, 2026 Jun 30, 2026
8-K Current report
Results of operations, Other events
Aug 12, 2026 Aug 12, 2026
4 Insider transaction Aug 6, 2026 Aug 4, 2026
3 Initial insider ownership Aug 6, 2026 Jul 28, 2026
S-8 Employee stock plan registration Aug 3, 2026 —
8-K Current report
Shareholder vote results, Other events
Jul 28, 2026 Jul 28, 2026
DEF 14A Proxy statement Jul 2, 2026 Jul 2, 2026
PRE 14A Preliminary proxy statement Jun 22, 2026 Jun 22, 2026
8-K Current report
Material agreement, Regulation FD disclosure, Other events
May 21, 2026 May 15, 2026
424B5 Prospectus supplement May 15, 2026 —
10-Q Quarterly report May 13, 2026 Mar 31, 2026
8-K Current report
Results of operations, Other events
May 13, 2026 May 13, 2026
SCHEDULE 13G/A Amended ownership over 5% (passive) May 8, 2026 —
EFFECT Filing Apr 3, 2026 —
CORRESP Letter to the SEC Apr 1, 2026 —
EFFECT Filing Mar 31, 2026 —
EFFECT Filing Mar 31, 2026 —
EFFECT Filing Mar 31, 2026 —
UPLOAD Letter from the SEC Mar 31, 2026 —
S-3 Shelf registration Mar 27, 2026 —
8-K Current report
Officer or director change
Mar 25, 2026 Mar 20, 2026
POS AM Filing Mar 25, 2026 —
POS AM Filing Mar 25, 2026 —
POS AM Filing Mar 25, 2026 —
8-K Current report
Results of operations, Other events
Mar 25, 2026 Mar 25, 2026
10-K Annual report Mar 25, 2026 Dec 31, 2025
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 17, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
4 Insider transaction Mar 24, 2026 Mar 20, 2026
8-K Current report
Regulation FD disclosure
Feb 25, 2026 Feb 25, 2026
8-K Current report
Results of operations, Other events
Feb 18, 2026 Feb 18, 2026
SCHEDULE 13G Ownership over 5% (passive) Feb 17, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Feb 17, 2026 —
8-K Current report
Other events
Feb 6, 2026 Feb 6, 2026
S-8 Employee stock plan registration Feb 2, 2026 —
424B3 Prospectus Jan 29, 2026 —
8-K Current report
Other events
Jan 27, 2026 Jan 27, 2026
CERT Filing Jan 27, 2026 —
8-A12B Filing Jan 27, 2026 —
4 Insider transaction Jan 23, 2026 Jan 22, 2026
8-K Current report
Material agreement, Unregistered share sale, Other events
Jan 23, 2026 Jan 22, 2026
8-K Current report
Material agreement, Other events
Jan 20, 2026 Jan 19, 2026
EFFECT Filing Dec 31, 2025 —
424B3 Prospectus Dec 31, 2025 —
CORRESP Letter to the SEC Dec 29, 2025 —
S-1/A Amended registration statement Dec 29, 2025 —
8-K Current report
Other events
Dec 23, 2025 Dec 23, 2025
8-K Current report
Other events
Dec 11, 2025 Dec 11, 2025
S-8 Employee stock plan registration Nov 14, 2025 —
10-Q Quarterly report Nov 12, 2025 Sep 30, 2025
8-K Current report
Regulation FD disclosure
Nov 10, 2025 Nov 10, 2025
8-K Current report
Results of operations, Other events
Nov 10, 2025 Nov 10, 2025
S-1 Registration statement Nov 3, 2025 —
8-K Current report
Other events
Oct 24, 2025 Oct 24, 2025
8-K Current report
Change to shareholder rights, Bylaw or fiscal year change
Oct 23, 2025 Oct 23, 2025
8-K Current report
Listing notice, Other events
Oct 20, 2025 Oct 17, 2025
8-K Current report
Other events
Oct 6, 2025 Oct 6, 2025
8-K Current report
Material agreement, Unregistered share sale, Other events
Oct 1, 2025 Sep 30, 2025
3 Initial insider ownership Sep 2, 2025 Sep 2, 2025
4 Insider transaction Sep 2, 2025 Aug 29, 2025
8-K/A Amended current report
Officer or director change
Sep 2, 2025 Aug 29, 2025
8-K Current report
Officer or director change
Aug 29, 2025 Aug 28, 2025
SCHEDULE 13G Ownership over 5% (passive) Aug 28, 2025 —
S-8 Employee stock plan registration Aug 28, 2025 —
8-K Current report
Material agreement, Officer or director change, Other events
Aug 28, 2025 Aug 22, 2025
8-K Current report
Material agreement, Other events
Aug 25, 2025 Aug 21, 2025
8-K Current report
Shareholder vote results, Other events
Aug 20, 2025 Aug 19, 2025
8-K Current report
Officer or director change
Aug 14, 2025 Aug 13, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
4 Insider transaction Aug 13, 2025 Aug 11, 2025
10-Q Quarterly report Aug 7, 2025 Jun 30, 2025
DEFA14A Additional proxy material Aug 7, 2025 —
8-K Current report
Results of operations, Other events
Aug 7, 2025 Aug 7, 2025
25-NSE Delisting notice Jul 21, 2025 —
DEF 14A Proxy statement Jul 17, 2025 Jul 17, 2025
PRE 14A Preliminary proxy statement Jul 3, 2025 Aug 19, 2025
8-K Current report
Other events
Jun 18, 2025 Jun 18, 2025
8-K Current report
Material agreement
Jun 12, 2025 Jun 11, 2025
8-K Current report
Regulation FD disclosure
May 21, 2025 May 21, 2025
SCHEDULE 13G/A Amended ownership over 5% (passive) May 15, 2025 —
10-Q Quarterly report May 13, 2025 Mar 31, 2025
8-K Current report
Results of operations, Other events
May 13, 2025 May 13, 2025
SCHEDULE 13D/A Amended ownership over 5% (active) Apr 30, 2025 —
SCHEDULE 13D/A Amended ownership over 5% (active) Apr 30, 2025 —
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 23, 2025 Apr 21, 2025
8-K Current report
Officer or director change
Apr 23, 2025 Apr 21, 2025
4 Insider transaction Apr 10, 2025 Apr 9, 2025
4 Insider transaction Apr 10, 2025 Apr 9, 2025
8-K Current report
Material agreement, Unregistered share sale, Other events
Apr 10, 2025 Apr 9, 2025
SCHEDULE 13D Ownership over 5% (active) Apr 2, 2025 —
SCHEDULE 13D Ownership over 5% (active) Apr 2, 2025 —
10-K Annual report Mar 31, 2025 Dec 31, 2024
8-K Current report
Results of operations, Other events
Mar 31, 2025 Mar 31, 2025
SCHEDULE 13G Ownership over 5% (passive) Mar 26, 2025 —
4 Insider transaction Mar 25, 2025 Mar 21, 2025
4 Insider transaction Mar 25, 2025 Mar 21, 2025
424B3 Prospectus Mar 3, 2025 —
424B3 Prospectus Mar 3, 2025 —
8-K Current report
Material agreement, New debt, Unregistered share sale, Other events
Feb 28, 2025 Feb 26, 2025
S-8 Employee stock plan registration Feb 12, 2025 —
EFFECT Filing Feb 5, 2025 —
424B3 Prospectus Feb 5, 2025 —
CORRESP Letter to the SEC Feb 3, 2025 —
S-1/A Amended registration statement Jan 31, 2025 —
424B3 Prospectus Jan 28, 2025 —
8-K Current report
Listing notice
Jan 28, 2025 Jan 24, 2025
424B3 Prospectus Jan 24, 2025 —
8-K Current report
Material agreement
Jan 24, 2025 Jan 23, 2025
UPLOAD Letter from the SEC Jan 21, 2025 —
S-1 Registration statement Jan 16, 2025 —
424B3 Prospectus Jan 10, 2025 —
8-K Current report
Material agreement
Jan 10, 2025 Jan 9, 2025
424B3 Prospectus Dec 23, 2024 —
8-K Current report
Listing notice
Dec 20, 2024 Dec 17, 2024
8-K Current report
Material agreement
Dec 12, 2024 Dec 11, 2024
8-K Current report
Regulation FD disclosure
Dec 11, 2024 Dec 11, 2024
SC 13D/A Amended ownership over 5% (active) Nov 22, 2024 —
424B3 Prospectus Nov 15, 2024 —
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Nov 14, 2024 Nov 12, 2024
4 Insider transaction Nov 14, 2024 Nov 12, 2024
SC 13G Ownership over 5% (passive) Nov 14, 2024 —
10-Q Quarterly report Nov 13, 2024 Sep 30, 2024
8-K Current report
Results of operations, Other events
Nov 13, 2024 Nov 13, 2024
8-K Current report
Listing notice
Nov 12, 2024 Nov 6, 2024
424B3 Prospectus Nov 4, 2024 —
8-K Current report
Material agreement
Nov 1, 2024 Oct 31, 2024
424B3 Prospectus Oct 1, 2024 —
8-K Current report
Material agreement
Sep 30, 2024 Sep 26, 2024
424B7 Filing Sep 20, 2024 —
424B3 Prospectus Sep 13, 2024 —
SC 13D/A Amended ownership over 5% (active) Sep 13, 2024 —
8-K Current report Sep 13, 2024 Sep 11, 2024
4 Insider transaction Sep 11, 2024 Sep 4, 2024
4 Insider transaction Sep 11, 2024 Sep 4, 2024
8-K Current report
Listing notice
Sep 10, 2024 Sep 4, 2024
8-K Current report
Regulation FD disclosure
Aug 14, 2024 Aug 14, 2024
424B3 Prospectus Aug 8, 2024 —
10-Q Quarterly report Aug 8, 2024 Jun 30, 2024
8-K Current report
Results of operations, Other events
Aug 8, 2024 Aug 8, 2024
SC 13D/A Amended ownership over 5% (active) Jul 17, 2024 —
4/A Amended statement of changes in beneficial ownership of securities Jul 15, 2024 Jul 3, 2024
4/A Amended statement of changes in beneficial ownership of securities Jul 15, 2024 Jul 3, 2024
4/A Amended statement of changes in beneficial ownership of securities Jul 15, 2024 Jun 27, 2024
4/A Amended statement of changes in beneficial ownership of securities Jul 15, 2024 Jun 27, 2024
424B7 Filing Jul 15, 2024 —
4 Insider transaction Jul 10, 2024 Jul 3, 2024
4 Insider transaction Jul 10, 2024 Jul 3, 2024
4 Insider transaction Jul 10, 2024 Jul 3, 2024
424B7 Filing Jul 10, 2024 —
SC 13D/A Amended ownership over 5% (active) Jul 10, 2024 —
4 Insider transaction Jul 9, 2024 Jul 3, 2024
4 Insider transaction Jul 9, 2024 Jul 3, 2024
4 Insider transaction Jul 9, 2024 Jul 3, 2024
4 Insider transaction Jul 9, 2024 Jul 3, 2024
4 Insider transaction Jul 9, 2024 Jul 3, 2024
SC 13D Ownership over 5% (active) Jul 3, 2024 —
424B3 Prospectus Jul 3, 2024 —
4 Insider transaction Jul 1, 2024 Jun 27, 2024
4 Insider transaction Jul 1, 2024 Jun 27, 2024
8-K Current report
Material agreement, Agreement ended
Jun 25, 2024 Jun 18, 2024
8-K Current report
Listing notice
Jun 21, 2024 Jun 17, 2024
S-8 Employee stock plan registration May 23, 2024 —
EFFECT Filing May 22, 2024 —
424B3 Prospectus May 22, 2024 —
CORRESP Letter to the SEC May 20, 2024 —
S-1/A Amended registration statement May 20, 2024 —
S-1/A Amended registration statement May 16, 2024 —
8-K Current report
Change to shareholder rights
May 13, 2024 May 13, 2024
10-Q Quarterly report May 13, 2024 Mar 31, 2024
8-K Current report
Listing notice
May 10, 2024 May 6, 2024
8-K Current report
Results of operations, Other events
May 10, 2024 May 10, 2024
CORRESP Letter to the SEC Apr 24, 2024 —
S-1/A Amended registration statement Apr 24, 2024 —
8-K Current report
Material agreement, Agreement ended
Apr 19, 2024 Apr 17, 2024
UPLOAD Letter from the SEC Apr 16, 2024 —

Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
Electromedical & Electrotherapeutic Apparatus (SIC 3845)
Listed as
QTI (Nasdaq), QTIWW (OTC)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Novato, CA
SEC filer status
, Emerging growth company
SEC CIK
1844505
Former names
GigCapital5, Inc. (until Feb 29, 2024)

Other Electromedical & Electrotherapeutic Apparatus companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.