Latest Institutional Purchases of Quantum Si Inc (QSI)
This list provides information on the latest institutional transactions involving Quantum Si Inc (QSI) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Aug 11, 2025
Q2 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
1.78M+ 25.78% |
$1.92M - $3.64M
|
8.67M
$10.1M
|
|
|
Aug 13, 2025
Q2 2025
|
Northern Trust Corp
Chicago, IL |
BUY
|
- |
1.27M+ 123.99% |
$1.37M - $2.6M
|
2.29M
$2.66M
|
|
|
Aug 12, 2025
Q2 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
807K+ 252.89% |
$872K - $1.65M
|
1.13M
$1.31M
|
|
|
Aug 08, 2025
Q2 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
453K+ 15.12% |
$489K - $928K
|
3.45M
$4M
|
|
|
Aug 14, 2025
Q2 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
453K+ 102.6% |
$489K - $928K
|
894K
$1.04M
|
|
|
Aug 14, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
447K+ 3327.57% |
$483K - $916K
|
460K
$534K
|
|
|
Aug 14, 2025
Q2 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
- |
420K+ 303.12% |
$453K - $861K
|
558K
$648K
|
|
|
Aug 14, 2025
Q2 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
378K+ 426.58% |
$408K - $774K
|
466K
$541K
|
|
|
Aug 14, 2025
Q2 2025
|
Ubs Group Ag
|
BUY
|
- |
340K+ 75.58% |
$367K - $697K
|
790K
$916K
|
|
|
Aug 14, 2025
Q2 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
302K+ 12.32% |
$327K - $620K
|
2.76M
$3.2M
|
|
|
Aug 14, 2025
Q2 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
285KNew |
$308K - $584K
|
285K
$330K
|
|
|
Aug 14, 2025
Q2 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
223KNew |
$241K - $457K
|
223K
$259K
|
|
|
Aug 14, 2025
Q2 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
189K+ 23.74% |
$204K - $388K
|
986K
$1.14M
|
|
|
Aug 14, 2025
Q2 2025
|
Alliancebernstein L.P.
New York, NY |
BUY
|
- |
162K+ 147.03% |
$175K - $332K
|
272K
$316K
|
|
|
Aug 13, 2025
Q2 2025
|
Group One Trading, L.P.
Chicago, IL |
BUY
|
- |
135KNew |
$145K - $276K
|
135K
$156K
|
|
|
Aug 13, 2025
Q2 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
118K+ 97.7% |
$128K - $242K
|
239K
$277K
|
|
|
Aug 13, 2025
Q2 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
91.8K+ 88.55% |
$99.1K - $188K
|
195K
$227K
|
|
|
Aug 12, 2025
Q2 2025
|
Alpha Core Capital LLC
La Jolla, CA |
BUY
|
- |
84KNew |
$90.7K - $172K
|
84K
$97.4K
|
|
|
Aug 12, 2025
Q2 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
64K+ 17.42% |
$69.1K - $131K
|
431K
$500K
|
|
|
Aug 05, 2025
Q2 2025
|
Simplex Trading, LLC
|
BUY
|
- |
62.6K+ 145.95% |
$67.6K - $128K
|
106K
$122K
|
|
|
Aug 12, 2025
Q2 2025
|
Axq Capital, LP
Jersey City, NJ |
BUY
|
- |
57KNew |
$61.6K - $117K
|
57K
$66.1K
|
|
|
Aug 12, 2025
Q2 2025
|
Rhumbline Advisers
Boston, MA |
BUY
|
- |
54K+ 36.0% |
$58.3K - $111K
|
204K
$237K
|
|
|
Aug 01, 2025
Q2 2025
|
Iq Eq Fund Management (Ireland) LTD
|
BUY
|
- |
46.9K+ 67.03% |
$50.6K - $96.1K
|
117K
$136K
|
|
|
Aug 13, 2025
Q2 2025
|
Jones Financial Companies Lllp
|
BUY
|
- |
43.9K+ 1463.33% |
$47.4K - $90K
|
46.9K
$54.4K
|
|
|
Jul 22, 2025
Q2 2025
|
Gsa Capital Partners LLP
London, X0 |
BUY
|
- |
38.2K+ 15.5% |
$41.2K - $78.3K
|
284K
$330K
|
|
|
Aug 12, 2025
Q2 2025
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
BUY
|
- |
31K+ 45.93% |
$33.5K - $63.6K
|
98.5K
$114K
|
|
|
Aug 08, 2025
Q2 2025
|
Intech Investment Management LLC
West Palm Beach, FL |
BUY
|
- |
27.1K+ 44.21% |
$29.3K - $55.6K
|
88.5K
$103K
|
|
|
Aug 13, 2025
Q2 2025
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
BUY
|
- |
26.8K+ 2391.79% |
$28.9K - $54.9K
|
27.9K
$32.4K
|
|
|
Aug 14, 2025
Q2 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
25.7K+ 26.72% |
$27.7K - $52.6K
|
122K
$141K
|
|
|
Aug 14, 2025
Q2 2025
|
Wells Fargo & Company
San Francisco, CA |
BUY
|
- |
18.4K+ 22.06% |
$19.9K - $37.7K
|
102K
$118K
|
|
|
Aug 13, 2025
Q2 2025
|
Cerity Partners LLC
New York, NY |
BUY
|
- |
14.9KNew |
$16.1K - $30.5K
|
14.9K
$17.3K
|
|
|
Aug 06, 2025
Q2 2025
|
Flagship Private Wealth, LLC
|
BUY
|
- |
14.2KNew |
$15.3K - $29K
|
14.2K
$16.4K
|
|
|
Jul 29, 2025
Q2 2025
|
Jtc Employer Solutions Trustee LTD
|
BUY
|
- |
13.3KNew |
$14.4K - $27.3K
|
13.3K
$15.5K
|
|
|
Aug 12, 2025
Q2 2025
|
Prudential Financial Inc
Newark, NJ |
BUY
|
- |
12.9KNew |
$13.9K - $26.3K
|
12.9K
$14.9K
|
|
|
Aug 14, 2025
Q2 2025
|
Price T Rowe Associates Inc
Baltimore, MD |
BUY
|
- |
12.3K+ 11.4% |
$13.3K - $25.3K
|
121K
$140K
|
|
|
Aug 12, 2025
Q2 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
12KNew |
$13K - $24.7K
|
12K
$14K
|
|
|
Aug 14, 2025
Q2 2025
|
Xponance, Inc.
|
BUY
|
- |
11.1KNew |
$11.9K - $22.7K
|
11.1K
$12.8K
|
|
|
Aug 14, 2025
Q2 2025
|
Manufacturers Life Insurance Company, The
Toronto, A6 |
BUY
|
- |
10.6K+ 27.43% |
$11.4K - $21.7K
|
49.1K
$56.9K
|
|
|
Jul 24, 2025
Q2 2025
|
Callan Family Office, LLC
Radnor, PA |
BUY
|
- |
10.4KNew |
$11.2K - $21.3K
|
10.4K
$12K
|
|
|
Jul 31, 2025
Q2 2025
|
Ground Swell Capital, LLC
Folly Beach, SC |
BUY
|
- |
10.1KNew |
$10.9K - $20.7K
|
10.1K
$11.7K
|
|
|
Aug 08, 2025
Q2 2025
|
Kingsview Wealth Management, LLC
Grants Pass, OR |
BUY
|
- |
10K+ 99.88% |
$10.8K - $20.5K
|
20K
$23.2K
|
|
|
Aug 04, 2025
Q2 2025
|
Wolverine Asset Management LLC
|
BUY
|
- |
9.63K+ 140.01% |
$10.4K - $19.7K
|
16.5K
$19.1K
|
|
|
Aug 14, 2025
Q2 2025
|
Voya Investment Management LLC
Atlanta, GA |
BUY
|
- |
9.31K+ 31.51% |
$10.1K - $19.1K
|
38.9K
$45.1K
|
|
|
Aug 14, 2025
Q2 2025
|
Headlands Technologies LLC
Chicago, IL |
BUY
|
- |
9K+ 2768.31% |
$9.72K - $18.4K
|
9.32K
$10.8K
|
|
|
Aug 01, 2025
Q2 2025
|
Belvedere Trading LLC
|
BUY
|
- |
7.22KNew |
$7.8K - $14.8K
|
7.22K
$8.38K
|
|
|
Aug 07, 2025
Q2 2025
|
Sbi Securities Co., Ltd.
Tokyo, M0 |
BUY
|
- |
7.17K+ 37.8% |
$7.74K - $14.7K
|
26.1K
$30.3K
|
|
|
Aug 14, 2025
Q2 2025
|
Mirae Asset Global Etfs Holdings Ltd.
Central, K3 |
BUY
|
- |
6.66K+ 9.44% |
$7.2K - $13.7K
|
77.2K
$89.6K
|
|
|
Jul 25, 2025
Q2 2025
|
Cwm, LLC
|
BUY
|
- |
5.33K+ 149.12% |
$5.76K - $10.9K
|
8.91K
$10.3K
|
|
|
Aug 18, 2025
Q2 2025
|
Hollencrest Capital Management
|
BUY
|
- |
5K+ 25.0% |
$5.4K - $10.3K
|
25K
$29K
|
|
|
Aug 12, 2025
Q2 2025
|
Ameritas Investment Partners, Inc.
Lincoln, NE |
BUY
|
- |
4.5K+ 45.38% |
$4.85K - $9.21K
|
14.4K
$16.7K
|