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.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+114,099—114,099$464.38KQ2 2026Sep 02, 2026
Stonepine Capital Management, LlcBuy+100,000—100,000$407.00KQ2 2026Aug 17, 2026
Polar Asset Management Partners Inc.Buy+51,677—51,677$210.32KQ2 2026Aug 14, 2026
Lynrock Lake LpSell-42,387-3.7%1,112,201$4.53MQ2 2026Aug 14, 2026
Sio Capital Management, LlcBuy+15,236—15,236$62.01KQ2 2026Aug 14, 2026
Millennium Management LlcSell-14,804-21.1%55,340$225.23KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+1,324+23.8%6,880$28.00KQ2 2026Aug 14, 2026
Federation Des Caisses Desjardins Du QuebecBuy+500—500$2.04KQ2 2026Aug 14, 2026
Barclays PlcBuy+68—68$277.00Q2 2026Aug 14, 2026
Vanguard Capital Management LlcBuy+334,522+1525.7%356,448$1.45MQ2 2026Aug 13, 2026
Bleichroeder LpBuy+150,001+90.0%316,667$1.29MQ2 2026Aug 13, 2026
Vanguard Fiduciary Trust CoBuy+49,071+2896.8%50,765$206.61KQ2 2026Aug 13, 2026
Ubs Group AgBuy+2,641+88.0%5,643$22.97KQ2 2026Aug 13, 2026
Northern Trust CorpBuy+1,447+7.5%20,772$84.54KQ2 2026Aug 13, 2026
Rockefeller Capital Management L.P.Buy+1,000—1,000$4.07KQ2 2026Aug 13, 2026
Capital Advisor Network LlcBuy+571—571$2.32KQ2 2026Aug 13, 2026
Geode Capital Management, LlcSell-6,362-4.5%135,418$551.42KQ2 2026Aug 12, 2026
Tower Research Capital Llc (Trc)Sell-120-8.8%1,240$5.05KQ2 2026Aug 11, 2026
Blackrock, Inc.Buy+33,009+116.5%61,353$249.71KQ2 2026Aug 07, 2026
Perkins Capital Management IncBuy+100,000—100,000$407.00KQ2 2026Jul 24, 2026
Signaturefd, LlcBuy+2,858—2,858$11.63KQ2 2026Jul 24, 2026
Royal Bank Of CanadaSell-44-100.0%0$0.00Q2 2026May 15, 2026
Veradace Capital Management LlcSell-18,851-100.0%0$0.00Q2 2026May 14, 2026
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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.