Vanguard Group Inc Quantum Si Inc Transaction History

Vanguard Group Inc

$5.97 Trillion
Q2 2025

A detailed history of Vanguard Group Inc transactions in Quantum Si Inc stock. As of the latest transaction made, Vanguard Group Inc holds 8,669,661 shares of QSI stock, worth $24.4 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

8,669,661

Previous 6,892,862 25.78%

Holding current value

$24.4 Million

Previous $8.27 Million 105.44%

% of portfolio

0.0%

Previous 0.0%

16 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 11, 2025	BUY	$1.08 - $2.05 $1.92 Million - $3.64 Million	1,776,799 Added 25.78%	8,669,661 $17 Million
Q1 2025 May 09, 2025	BUY	$1.14 - $4.29 $1.6 Million - $6.01 Million	1,401,109 Added 25.51%	6,892,862 $8.27 Million
Q4 2024 Feb 11, 2025	BUY	$0.63 - $3.6 $286,331 - $1.64 Million	454,495 Added 9.02%	5,491,753 $14.8 Million
Q3 2024 Nov 13, 2024	BUY	$0.82 - $1.22 $72,894 - $108,453	88,896 Added 1.8%	5,037,258 $4.43 Million
Q2 2024 Aug 13, 2024	SELL	$0.84 - $1.89 $295,951 - $665,890	-352,323 Reduced 6.65%	4,948,362 $5.2 Million
Q1 2024 May 10, 2024	BUY	$1.43 - $2.23 $117,922 - $183,892	82,463 Added 1.58%	5,300,685 $10.4 Million
Q4 2023 Feb 14, 2024	BUY	$1.15 - $2.27 $60,979 - $120,369	53,026 Added 1.03%	5,218,222 $10.5 Million
Q3 2023 Nov 14, 2023	BUY	$1.6 - $3.89 $16,307 - $39,646	10,192 Added 0.2%	5,165,196 $8.57 Million
Q2 2023 Aug 14, 2023	BUY	$1.38 - $1.83 $43,395 - $57,546	31,446 Added 0.61%	5,155,004 $9.23 Million
Q1 2023 May 15, 2023	BUY	$1.59 - $2.58 $280,444 - $455,060	176,380 Added 3.57%	5,123,558 $9.02 Million
Q4 2022 Feb 10, 2023	BUY	$1.82 - $3.27 $47,785 - $85,857	26,256 Added 0.53%	4,947,178 $9.05 Million
Q3 2022 Nov 14, 2022	BUY	$0.74 - $4.35 $228,173 - $1.34 Million	308,343 Added 6.68%	4,920,922 $13.5 Million
Q2 2022 Aug 12, 2022	BUY	$2.32 - $4.9 $1.57 Million - $3.33 Million	678,572 Added 17.25%	4,612,579 $10.7 Million
Q1 2022 May 13, 2022	BUY	$3.86 - $8.22 $8.24 Million - $17.5 Million	2,134,692 Added 118.64%	3,934,007 $18.4 Million
Q4 2021 Feb 14, 2022	BUY	$5.65 - $8.75 $1.5 Million - $2.32 Million	265,712 Added 17.33%	1,799,315 $14.2 Million
Q3 2021 Nov 12, 2021	BUY	$7.97 - $13.56 $12.2 Million - $20.8 Million	1,533,603 New	1,533,603 $12.8 Million

Others Institutions Holding QSI

# of Institutions

154

Shares Held

61.1M

Call Options Held

781K

Put Options Held

1.01M

View Full List

About Quantum-Si Inc

Ticker QSI
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 119,433,000
Market Cap $337M
Description
Quantum-Si incorporated, a life sciences company, develops a single molecule detection platform for sample preparation and sequencing. It offers a proprietary single molecule detection platform for use in semiconductor industry to field proteomics to enable next generation protein sequencing. The company was incorporated in 2013 is based in Guil...

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Vanguard Group Inc Quantum Si Inc Transaction History