QTINasdaqElectromedical & Electrotherapeutic ApparatusFiscal year ends December 31Also trades as QTIWW
QT IMAGING HOLDINGS, INC.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 12, 2026
$2.33−0.07 (-2.92%)
Close on Oct 19, 2026
- Market cap
- $34.56M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
3M
Shares held, 13F filers
Institutional holders
29
10 new, 2 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
1 buys · 0 sales
Net bought $155.01K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Vik Mittal | 832,763 | 9.62% | 13G (passive) | Dec 31, 2023 |
| John C. Klock, Jr. | 2,881,140 | 13.40% | 13D (active) | Mar 4, 2024 |
| Dr. Raluca Dinu | 2,043,745 | 7.00% | 13D (active) amendment | Apr 24, 2025 |
| Dr. Avi S. Katz | 1,814,579 | 6.20% | 13D (active) amendment | Apr 24, 2025 |
| Emil D. Kakkis and Jenny Soriano | 1,400,030 | 5.10% | 13G (passive) | Mar 17, 2025 |
| Anand Parekh | 1,178,317 | 9.99% | 13G (passive) | Dec 31, 2025 |
| Paul Cynthia | 1,154,586 | 9.70% | 13G (passive) amendment | Dec 31, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of QTI | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Lynrock Lake LP | 1,112,201 | – | $4.53M | −42,387 | 0.29% |
| Alyeska Investment Group, L.P. | 702,776 | – | $2.86M | – | 0.01% |
| Vanguard Capital Management LLC | 356,448 | – | $1.45M | +334,522 | 0.00% |
| Bleichroeder LP | 316,667 | – | $1.29M | +150,001 | 0.23% |
| Geode Capital Management, LLC | 135,418 | – | $551.42K | −6,362 | 0.00% |
| Citadel Advisors LLC | 114,099 | – | $464.38K | New | 0.00% |
| Perkins Capital Management Inc | 100,000 | – | $407.00K | New | 0.31% |
| Stonepine Capital Management, LLC | 100,000 | – | $407.00K | New | 0.23% |
| BlackRock, Inc. | 61,353 | – | $249.71K | +33,009 | 0.00% |
| Millennium Management LLC | 55,340 | – | $225.23K | −14,804 | 0.00% |
| Polar Asset Management Partners Inc. | 51,677 | – | $210.33K | New | 0.00% |
| Vanguard Fiduciary Trust Co | 50,765 | – | $206.61K | +49,071 | 0.00% |
| Ronald Blue Trust, Inc. | 23,998 | – | $97.67K | – | 0.00% |
| Northern Trust Corp | 20,772 | – | $84.54K | +1,447 | 0.00% |
| Oxford Financial Group Ltd | 20,565 | – | $83.70K | – | 0.00% |
| Sio Capital Management, LLC | 15,236 | – | $62.01K | New | 0.01% |
| Wells Fargo & Company/Mn | 6,880 | – | $28.00K | +1,324 | 0.00% |
| UBS Group AG | 5,643 | – | $22.97K | +2,641 | 0.00% |
| Fifth Third Bancorp | 3,967 | – | $16.15K | – | 0.00% |
| Signaturefd, LLC | 2,858 | – | $11.63K | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|
| Q2 2026 | 29 | 3M | 10 / 7 | 4 / 2 | 1M | 0M |
| Q1 2026 | 21 | 2M | 21 / 0 | 0 / 0 | 2M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of QTI | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 246,540 | – | $1.00M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 103,720 | – | $422.14K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 46,834 | – | $234.17K | 0.00% | May 31, 2026 |
| Fidelity Total Market Index Fund | 36,939 | – | $184.70K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 31,015 | – | $126.23K | 0.01% | Jun 30, 2026 |
| Fidelity Series Total Market Index Fund | 27,195 | – | $135.98K | 0.00% | May 31, 2026 |
| Vanguard Balanced Index Fund | 6,188 | – | $25.19K | 0.00% | Jun 30, 2026 |
| Fidelity Nasdaq Composite Index Fund | 5,946 | – | $29.73K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 1,994 | – | $8.12K | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Raluca Dinu | Chief Executive Officer, Director | 7,128,066 | Aug 31, 2026 |
| Avi S. Katz | Chairman, Director | 6,257,725 | Mar 24, 2026 |
| Jay Walter Jennings | Chief Financial Officer | 2,800 | Mar 24, 2026 |
| Anastas Budagov | Chief Financial Officer | – | Sep 2, 2025 |
| Ross Taylor | Director | 60,578 | Aug 27, 2026 |
| Bryan Timm | Director | 9,000 | Aug 6, 2026 |
| James S. Greene | Director | 631,582 | Mar 24, 2026 |
| Daniel H. Dickson | Director | 32,039 | Mar 24, 2026 |
| Zeev Weiner | Director | 55,093 | Mar 24, 2026 |
| John C. Klock Jr | Director, 10% owner | 2,884,640 | Mar 24, 2026 |
| GigAcquisitions5, LLC | 10% owner | 775,571 | Mar 25, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Raluca Dinu Chief Executive Officer, Director | Aug 28, 2026 | Award | +484,221 | – | – | 1,393,066 |
| Bryan Timm Director | Aug 4, 2026 | Award | +9,000 | – | – | 9,000 |
| Ross Taylor Director | Mar 20, 2026 | Award | +3,500 | – | – | 60,578 |
| James S. Greene Director | Mar 20, 2026 | Award | +3,500 | – | – | 3,500 |
| Raluca Dinu Chief Executive Officer, Director | Mar 20, 2026 | Award | +500,000 | – | – | 892,845 |
| Raluca Dinu Chief Executive Officer, Director | Mar 20, 2026 | Award | +16,000 | – | – | 908,845 |
| Raluca Dinu Chief Executive Officer, Director | Mar 20, 2026 | Award | +3,500 | – | – | 392,845 |
| Zeev Weiner Director | Mar 20, 2026 | Award | +3,500 | – | – | 55,093 |
| Daniel H. Dickson Director | Mar 20, 2026 | Award | +3,500 | – | – | 32,039 |
| Avi S. Katz Chairman, Director | Mar 20, 2026 | Award | +3,500 | – | – | 416,952 |
| John C. Klock Jr Director, 10% owner | Mar 20, 2026 | Award | +3,500 | – | – | 3,500 |
| Jay Walter Jennings Chief Financial Officer | Mar 20, 2026 | Award | +2,800 | – | – | 2,800 |
| Zeev Weiner Director | Mar 17, 2026 | Option exercise | +8,888 | $2.25 | $20.00K | 37,427 |
| Zeev Weiner Director | Mar 17, 2026 | Option exercise | +14,166 | $2.00 | $28.33K | 51,593 |
| Avi S. Katz CHAIRMAN, Director | Jan 22, 2026 | Buy | +24,107 | $6.43 | $155.01K | 413,452 |
| Raluca Dinu Chief Executive Officer, Director | Apr 9, 2025 | Buy | +392,465 | $0.64 | $251.18K | 1,168,035 |
| Avi S. Katz Chairman, Director | Apr 9, 2025 | Buy | +392,464 | $0.64 | $251.18K | 1,168,035 |
| GigAcquisitions5, LLC 10% owner | Mar 21, 2025 | Buy | +117,611 | $0.58 | $68.21K | 775,571 |
| GigAcquisitions5, LLC 10% owner | Mar 21, 2025 | Buy | −2,671,232 | $0.58 | $1.55M | 0 |
| Raluca Dinu Chief Executive Officer, Director | Mar 21, 2025 | Buy | +117,611 | – | – | 775,570 |
| James S. Greene Director | Nov 12, 2024 | Buy | +428,082 | $0.58 | $248.29K | 628,082 |
| Raluca Dinu Chief Executive Officer, Director | Nov 12, 2024 | Buy | +470,890 | – | – | 657,959 |
| Zeev Weiner Director | Nov 12, 2024 | Buy | +85,616 | $0.58 | $49.66K | 85,616 |
| Ross Taylor Director | Nov 12, 2024 | Buy | +171,232 | $0.58 | $99.31K | 171,232 |
| Daniel H. Dickson Director | Nov 12, 2024 | Buy | +85,616 | $0.58 | $49.66K | 85,616 |
| GigAcquisitions5, LLC 10% owner | Nov 12, 2024 | Buy | +2,671,232 | $0.58 | $1.55M | 2,671,232 |
| GigAcquisitions5, LLC 10% owner | Nov 12, 2024 | Buy | +470,890 | $0.58 | $273.12K | 657,960 |
| GigAcquisitions5, LLC 10% owner | Sep 4, 2024 | Other | +161,954 | – | – | 187,070 |
| GigAcquisitions5, LLC 10% owner | Sep 4, 2024 | Other | −5,735,000 | – | – | 0 |
| Raluca Dinu Chief Executive Officer, Director | Sep 4, 2024 | Other | +161,954 | – | – | 187,069 |
| GigAcquisitions5, LLC 10% owner | Jul 5, 2024 | Other | −105,773 | – | – | 5,735,000 |
| Avi S. Katz Chairman, Director, 10% owner | Jun 27, 2024 | Other | +25,116 | – | – | 25,116 |
| Raluca Dinu Chief Executive Officer, Director | Jun 27, 2024 | Other | −25,115 | – | – | 25,115 |
| Avi S. Katz Chairman, Director, 10% owner | Jun 27, 2024 | Other | −783,591 | – | – | 5,840,773 |
| Avi S. Katz Chairman, Director, 10% owner | Jun 27, 2024 | Other | +26,593 | – | – | 26,593 |
| Raluca Dinu Chief Executive Officer, Director | Jun 27, 2024 | Other | −26,592 | – | – | 26,592 |
| John C. Klock Jr Chief Executive Officer, Director | Mar 4, 2024 | Award | +2,881,140 | – | – | 2,881,140 |
| Gerald McMorrow Director | Mar 4, 2024 | Award | +5,904 | – | – | 5,904 |
| Avi S. Katz Chairman, Director, 10% owner | Mar 4, 2024 | Option exercise | +94,364 | $10.00 | $943.64K | 6,624,364 |
| Asset Management Partners Inc. Polar 10% owner | Mar 24, 2023 | Sale | −500,000 | $10.56 | $5.28M | 797,620 |
| Asset Management Partners Inc. Polar 10% owner | Mar 1, 2023 | Sale | −154,600 | $10.40 | $1.61M | 1,297,620 |
| Asset Management Partners Inc. Polar 10% owner | Feb 28, 2023 | Sale | −80,000 | $10.45 | $836.00K | 1,467,620 |
| Asset Management Partners Inc. Polar 10% owner | Feb 28, 2023 | Sale | −15,400 | $10.40 | $160.16K | 1,452,220 |
| Avi S. Katz Chairman, Director, 10% owner | Sep 23, 2021 | Award | +795,000 | $10.00 | $7.95M | 6,530,000 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.