QT IMAGING HOLDINGS INC (QTI) Institutional Ownership Changes & 13F Activity
QT IMAGING HOLDINGS INC (QTI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Vanguard Capital Management Llc, Bleichroeder Lp, Citadel Advisors Llc, Stonepine Capital Management, Llc, and Perkins Capital Management Inc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +114,099 | — | 114,099 | $464.38K | Q2 2026 | Sep 02, 2026 |
| Stonepine Capital Management, Llc | Buy | +100,000 | — | 100,000 | $407.00K | Q2 2026 | Aug 17, 2026 |
| Polar Asset Management Partners Inc. | Buy | +51,677 | — | 51,677 | $210.32K | Q2 2026 | Aug 14, 2026 |
| Lynrock Lake Lp | Sell | -42,387 | -3.7% | 1,112,201 | $4.53M | Q2 2026 | Aug 14, 2026 |
| Sio Capital Management, Llc | Buy | +15,236 | — | 15,236 | $62.01K | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -14,804 | -21.1% | 55,340 | $225.23K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +1,324 | +23.8% | 6,880 | $28.00K | Q2 2026 | Aug 14, 2026 |
| Federation Des Caisses Desjardins Du Quebec | Buy | +500 | — | 500 | $2.04K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +68 | — | 68 | $277.00 | Q2 2026 | Aug 14, 2026 |
| Vanguard Capital Management Llc | Buy | +334,522 | +1525.7% | 356,448 | $1.45M | Q2 2026 | Aug 13, 2026 |
| Bleichroeder Lp | Buy | +150,001 | +90.0% | 316,667 | $1.29M | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +49,071 | +2896.8% | 50,765 | $206.61K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Buy | +2,641 | +88.0% | 5,643 | $22.97K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +1,447 | +7.5% | 20,772 | $84.54K | Q2 2026 | Aug 13, 2026 |
| Rockefeller Capital Management L.P. | Buy | +1,000 | — | 1,000 | $4.07K | Q2 2026 | Aug 13, 2026 |
| Capital Advisor Network Llc | Buy | +571 | — | 571 | $2.32K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Sell | -6,362 | -4.5% | 135,418 | $551.42K | Q2 2026 | Aug 12, 2026 |
| Tower Research Capital Llc (Trc) | Sell | -120 | -8.8% | 1,240 | $5.05K | Q2 2026 | Aug 11, 2026 |
| Blackrock, Inc. | Buy | +33,009 | +116.5% | 61,353 | $249.71K | Q2 2026 | Aug 07, 2026 |
| Perkins Capital Management Inc | Buy | +100,000 | — | 100,000 | $407.00K | Q2 2026 | Jul 24, 2026 |
| Signaturefd, Llc | Buy | +2,858 | — | 2,858 | $11.63K | Q2 2026 | Jul 24, 2026 |
| Royal Bank Of Canada | Sell | -44 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Veradace Capital Management Llc | Sell | -18,851 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
Frequently asked questions about QTI activity
Which institutional owners are buying QTI?
Institutional owners buying QTI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in QTI activity?
"Buy" means an investor increased their reported position in QTI compared to the prior reporting period. This reflects growing exposure to QT IMAGING HOLDINGS INC (QTI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in QTI increasing?
Institutional interest in QTI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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