Latest Institutional Transactions on Quantum Si Inc (QSI)
This table provides information on the latest institutional transactions involving Quantum Si Inc (QSI) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 12, 2025
Q3 2025
|
Police & Firemen'S Retirement System Of New Jersey
Trenton, NJ |
BUY
|
- |
15K+ 48.29% |
$15K - $32.2K
|
46.2K
$65.6K
|
|
|
Nov 12, 2025
Q3 2025
|
Cathie Wood
Ark Investment Management LLC | St. Petersburg, Fl
|
SELL
|
- |
-337K- 4.23% |
$337K - $721K
|
7.62M
$10.8M
|
|
|
Nov 12, 2025
Q3 2025
|
Victory Capital Management Inc
|
BUY
|
- |
1.26K+ 7.76% |
$1.26K - $2.69K
|
17.5K
$24.8K
|
|
|
Nov 12, 2025
Q3 2025
|
Lpl Financial LLC
Fort Mill, SC |
BUY
|
- |
5.17K+ 22.2% |
$5.17K - $11.1K
|
28.5K
$40.4K
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
SELL
|
- |
-679K- 60.26% |
$679K - $1.45M
|
448K
$635K
|
|
|
Nov 12, 2025
Q3 2025
|
Cibc Bancorp Usa Inc.
Chicago, IL |
BUY
|
- |
16.7KNew |
$16.7K - $35.8K
|
16.7K
$23.8K
|
|
|
Nov 12, 2025
Q3 2025
|
Nikko Asset Management Americas, Inc.
|
SELL
|
- |
-404K- 7.18% |
$404K - $864K
|
5.22M
$7.41M
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
SELL
|
- |
-17.8K- 7.44% |
$17.8K - $38.1K
|
221K
$314K
|
|
|
Nov 10, 2025
Q3 2025
|
Citigroup Inc
|
SELL
|
- |
-25.4K- 51.79% |
$25.4K - $54.4K
|
23.7K
$33.6K
|
|
|
Nov 10, 2025
Q3 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
36.6K+ 8.49% |
$36.6K - $78.4K
|
468K
$665K
|
|
|
Nov 10, 2025
Q3 2025
|
Ever Source Wealth Advisors, LLC
|
SELL
|
- |
-401- 48.43% |
$401 - $858
|
427
$606
|
|
|
Nov 10, 2025
Q3 2025
|
Optiver Holding B.V.
Amsterdam, P7 |
BUY
|
- |
1.12KNew |
$1.12K - $2.39K
|
1.12K
$1.59K
|
|
|
Nov 10, 2025
Q3 2025
|
Xponance, Inc.
|
BUY
|
- |
901+ 8.15% |
$901 - $1.93K
|
12K
$17K
|
|
|
Nov 10, 2025
Q3 2025
|
Intech Investment Management LLC
West Palm Beach, FL |
SELL
|
- |
-13.7K- 15.52% |
$13.7K - $29.4K
|
74.8K
$106K
|
|
|
Nov 10, 2025
Q3 2025
|
Alpha Core Capital LLC
La Jolla, CA |
BUY
|
- |
18.9K+ 22.51% |
$18.9K - $40.4K
|
103K
$146K
|
|
|
Nov 07, 2025
Q3 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
44.8K+ 0.52% |
$44.8K - $96K
|
8.71M
$12.4M
|
|
|
Nov 07, 2025
Q3 2025
|
Jpmorgan Chase & CO
New York, NY |
BUY
|
- |
5.63K+ 9.76% |
$5.63K - $12K
|
63.3K
$89.9K
|
|
|
Nov 06, 2025
Q3 2025
|
Cibc World Market Inc.
Toronto, A6 |
SELL
|
- |
-11- 0.08% |
$11 - $23.5
|
14K
$19.9K
|
|
|
Nov 06, 2025
Q3 2025
|
Rhumbline Advisers
Boston, MA |
BUY
|
- |
16K+ 7.84% |
$16K - $34.2K
|
220K
$312K
|
|
|
Nov 06, 2025
Q3 2025
|
Stratos Wealth Advisors, LLC
|
SELL
|
- |
-4.32K- 24.21% |
$4.32K - $9.25K
|
13.5K
$19.2K
|
|
|
Nov 05, 2025
Q3 2025
|
Pro Share Advisors LLC
|
SELL
|
- |
-2.06K- 7.14% |
$2.06K - $4.42K
|
26.9K
$38.1K
|
|
|
Nov 05, 2025
Q3 2025
|
Capital Investment Advisory Services, LLC
|
BUY
|
- |
10K+ 100.0% |
$10K - $21.4K
|
20K
$28.4K
|
|
|
Nov 05, 2025
Q3 2025
|
Iq Eq Fund Management (Ireland) LTD
|
BUY
|
- |
72.3K+ 61.93% |
$72.3K - $155K
|
189K
$269K
|
|
|
Nov 04, 2025
Q3 2025
|
Principal Financial Group Inc
Des Moines, IA |
BUY
|
- |
11.2KNew |
$11.2K - $23.9K
|
11.2K
$15.8K
|
|
|
Nov 04, 2025
Q3 2025
|
Jones Financial Companies Lllp
|
BUY
|
- |
46.6K+ 99.36% |
$46.6K - $99.7K
|
93.5K
$133K
|
|
|
Nov 04, 2025
Q3 2025
|
Imc Chicago, LLC
|
BUY
|
- |
185KNew |
$185K - $396K
|
185K
$263K
|
|
|
Nov 04, 2025
Q3 2025
|
Atlantic Union Bankshares Corp
|
BUY
|
- |
251New |
$251 - $537
|
251
$356
|
|
|
Nov 04, 2025
Q3 2025
|
Sbi Securities Co., Ltd.
Tokyo, M0 |
BUY
|
- |
7.48K+ 28.59% |
$7.48K - $16K
|
33.6K
$47.7K
|
|
|
Nov 03, 2025
Q3 2025
|
Hollencrest Capital Management
|
BUY
|
- |
10K+ 40.0% |
$10K - $21.4K
|
35K
$49.7K
|
|
|
Oct 31, 2025
Q3 2025
|
Vanguard Personalized Indexing Management, LLC
Oakland, CA |
BUY
|
- |
1.1K+ 4.57% |
$1.1K - $2.36K
|
25.2K
$35.8K
|
|
|
Oct 31, 2025
Q3 2025
|
Ewa, LLC
Pittsbugh, PA |
SELL
|
- |
-51.1K- 74.9% |
$51.1K - $109K
|
17.1K
$24.3K
|
|
|
Oct 29, 2025
Q3 2025
|
Verdence Capital Advisors LLC
Hunt Valley, MD |
BUY
|
- |
164KNew |
$164K - $351K
|
164K
$233K
|
|
|
Oct 28, 2025
Q3 2025
|
Wolverine Asset Management LLC
|
SELL
|
- |
-8.68K- 52.58% |
$8.68K - $18.6K
|
7.83K
$11.1K
|
|
|
Oct 27, 2025
Q3 2025
|
Belvedere Trading LLC
|
SELL
|
CALL |
-600- 3.82% |
$600 - $1.28K
|
15.1K
$21.4K
|
|
|
Oct 27, 2025
Q3 2025
|
Belvedere Trading LLC
|
SELL
|
- |
-5.83K- 80.75% |
$5.83K - $12.5K
|
1.39K
$1.97K
|
|
|
Oct 27, 2025
Q3 2025
|
Sumitomo Mitsui Trust Holdings, Inc.
|
SELL
|
- |
-404K- 7.18% |
$404K - $864K
|
5.22M
$7.41M
|
|
|
Oct 23, 2025
Q3 2025
|
Jtc Employer Solutions Trustee LTD
|
BUY
|
- |
21.2K+ 158.92% |
$21.2K - $45.4K
|
34.5K
$49K
|
|
|
Oct 23, 2025
Q3 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
9.93K+ 30.84% |
$9.93K - $21.2K
|
42.1K
$59.8K
|
|
|
Oct 23, 2025
Q3 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-716- 54.08% |
$716 - $1.53K
|
608
$863
|
|
|
Oct 22, 2025
Q3 2025
|
Commonwealth Equity Services, LLC
|
BUY
|
- |
10.7K+ 41.8% |
$10.7K - $22.8K
|
36.2K
$51.4K
|
|
|
Oct 21, 2025
Q3 2025
|
Wealth Management Associates, Inc.
Cherry Hill, NJ |
BUY
|
- |
4K+ 14.84% |
$4K - $8.56K
|
31K
$43.9K
|
|
|
Oct 16, 2025
Q3 2025
|
Hbw Advisory Services LLC
|
SELL
|
- |
-10- 0.04% |
$10 - $21.4
|
24.2K
$34.4K
|
|
|
Oct 16, 2025
Q3 2025
|
Elite Life Management LLC
Erie, PA |
BUY
|
- |
20.6KNew |
$20.6K - $44.1K
|
20.6K
$29.3K
|
|
|
Oct 15, 2025
Q3 2025
|
Cwm, LLC
|
SELL
|
- |
-6.76K- 75.81% |
$6.76K - $14.5K
|
2.16K
$3.06K
|
|
|
Oct 14, 2025
Q3 2025
|
Hbk Sorce Advisory LLC
Erie, PA |
BUY
|
- |
21.4KNew |
$21.4K - $45.9K
|
21.4K
$30.4K
|
|
|
Oct 14, 2025
Q3 2025
|
Green Alpha Advisors, LLC
|
SELL
|
- |
-12.3K- 5.39% |
$12.3K - $26.4K
|
216K
$307K
|
|
|
Oct 09, 2025
Q3 2025
|
Voya Investment Management LLC
Atlanta, GA |
SELL
|
- |
-11.6K- 29.89% |
$11.6K - $24.9K
|
27.2K
$38.7K
|
|
| Q2 2025 | |||||||
|
Nov 21, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
447K+ 3327.57% |
$483K - $916K
|
460K
$654K
|
|
|
Aug 14, 2025
Q2 2025
|
Headlands Technologies LLC
Chicago, IL |
BUY
|
- |
9K+ 2768.31% |
$9.72K - $18.4K
|
9.32K
$13.2K
|
|
|
Aug 14, 2025
Q2 2025
|
Talon Private Wealth, LLC
The Villages, FL |
BUY
|
- |
2KNew |
$2.16K - $4.1K
|
2K
$2.84K
|
|