Vault-13

QT IMAGING HLDGS INC QTI

COM · Common Stock · CUSIP 746962307

29 institutional holders +8 vs Q1 2026
3,264,6363.3m shares reported held*
22.3% of all shares outstanding*
$13.3mreported value*
10 new 7 added 4 reduced 2 sold out net bought ≈ $3.6m (+875.5k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 14.6m as of 2026-08-12, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.07.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0102030Q1 26: 21Q2 26: 2929Q1 26Q2 26
Numbers
QuarterHolders
Q1 202621
Q2 202629

Biggest buyers

VANGUARD CAPITAL MANAGEMENT LLC Added +334,522+334.5k
Bleichroeder LP Added +150,001+150.0k
CITADEL ADVISORS LLC New +114,099+114.1k
PERKINS CAPITAL MANAGEMENT INC New +100,000+100.0k
Stonepine Capital Management, LLC New +100,000+100.0k
Polar Asset Management Partners Inc. New +51,677+51.7k
VANGUARD FIDUCIARY TRUST CO Added +49,071+49.1k
BlackRock, Inc. Added +33,009+33.0k
Sio Capital Management, LLC New +15,236+15.2k
SIGNATUREFD, LLC New +2,858+2.9k

Biggest sellers

Lynrock Lake LP Reduced -42,387-42.4k
Veradace Capital Management LLC Sold out -18,851-18.9k
MILLENNIUM MANAGEMENT LLC Reduced -14,804-14.8k
GEODE CAPITAL MANAGEMENT, LLC Reduced -6,362-6.4k
Tower Research Capital LLC (TRC) Reduced -120-120
ROYAL BANK OF CANADA Sold out -44-44

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
KAKKIS EMIL D 13G · institution new · filed 2025-03-26 5.1% new 1.4m 2025-03-26

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
10010Q4 24: 6 buyingQ4 24: 0 sellingQ1 25: 2 buyingQ1 25: 0 sellingQ1 25Q2 25: 2 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 1 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20246$2.2m0——
Q1 20252$68.2k0——
Q2 20252$502.4k0——
Q3 20250—0——
Q4 20250—0——
Q1 20261$155.0k0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Lynrock Lake LP 0.29% of their portfolio RYE BROOK, NY 1,112,2011.1m $4.5m $4.5m 0.29% Reduced -42.4k -42,387
2 Alyeska Investment Group, L.P. 0.01% of their portfolio CHICAGO, IL 702,776702.8k $2.9m $2.9m 0.01% Unchanged
3 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 356,448356.4k $1.5m $1.5m 0.00% Added +334.5k +334,522
4 Bleichroeder LP 0.23% of their portfolio NEW YORK, NY 316,667316.7k $1.3m $1.3m 0.23% Added +150.0k +150,001
5 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 135,418135.4k $551.4k $551.4k 0.00% Reduced -6.4k -6,362
6 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 114,099114.1k $464.4k $464.4k 0.00% New
7 PERKINS CAPITAL MANAGEMENT INC 0.31% of their portfolio WAYZATA, MN 100,000100.0k $407.0k $407.0k 0.31% New
8 Stonepine Capital Management, LLC 0.31% of their portfolio Bend, OR 100,000100.0k $407.0k $407.0k 0.31% New
9 BlackRock, Inc. 0.00% of their portfolio New York, NY 61,35361.4k $249.7k $249.7k 0.00% Added +33.0k +33,009
10 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 55,34055.3k $225.2k $225.2k 0.00% Reduced -14.8k -14,804
11 Polar Asset Management Partners Inc. 0.00% of their portfolio TORONTO, A6 51,67751.7k $210.3k $210.3k 0.00% New
12 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 50,76550.8k $206.6k $206.6k 0.00% Added +49.1k +49,071
13 Blue Trust, Inc. 0.00% of their portfolio BRENTWOOD, TN 23,99824.0k $97.7k $97.7k 0.00% Unchanged
14 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 20,77220.8k $84.5k $84.5k 0.00% Added +1.4k +1,447
15 OXFORD FINANCIAL GROUP, LTD. LLC 0.00% of their portfolio INDIANAPOLIS, IN 20,56520.6k $83.7k $83.7k 0.00% Unchanged
16 Sio Capital Management, LLC 0.01% of their portfolio NEW YORK, NY 15,23615.2k $62.0k $62.0k 0.01% New
17 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 6,8806.9k $28.0k $28.0k 0.00% Added +1.3k +1,324
18 UBS Group AG 0.00% of their portfolio ZURICH, V8 5,6435.6k $23.0k $23.0k 0.00% Added +2.6k +2,641
19 FIFTH THIRD BANCORP 0.00% of their portfolio CINCINNATI, OH 3,9674.0k $16.1k $16.1k 0.00% Unchanged
20 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 2,8582.9k $11.6k $11.6k 0.00% New
21 JNBA Financial Advisors 0.00% of their portfolio BLOOMINGTON, MN 2,5002.5k $10.2k $10.2k 0.00% Unchanged
22 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 1,5941.6k $6.5k $6.5k 0.00% Unchanged
23 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,2401.2k $5.0k $5.0k 0.00% Reduced -120 -120
24 Rockefeller Capital Management L.P. 0.00% of their portfolio NEW YORK, NY 1,0001.0k $4.1k $4.1k 0.00% New
25 Capital Advisor Network LLC 0.00% of their portfolio LAFAYETTE, IN 571571 $2.3k $2.3k 0.00% New
26 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 500500 $2.0k $2.0k 0.00% New
27 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 271271 $1.1k $1.1k 0.00% Unchanged
28 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 229229 $932 $932 0.00% Unchanged
29 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 6868 $277 $277 0.00% New