Quantum-Si Incorporated (NASDAQ: QSI) Stock Information | RedChip
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Quantum-Si Incorporated (NASDAQ: QSI)
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$1.26
+0.0650 ( +5.46% ) 7.5M

Quantum-Si Inc is focused on revolutionizing the growing field of proteomics. The company's suite of technologies is powered by a first-of-its-kind semiconductor chip designed to enable single-molecule next-generation protein sequencing and genomics, and digitize proteomic research in order to advance drug discovery and diagnostics beyond DNA sequencing.

Market Data


Open $1.26
Previous Close $1.19
Volume 7.5M
Market Cap $259.14M
Day Range $1.16 - $1.30
52 Week Range $0.69 - $3.10
Shares Outstanding 217.76M
Change % +5.46%
Net Change ▲ 0.0650
Insider Ownership -0.03%
Exchange NASDAQ
SectorHealthcare
IndustryBiotechnology: Pharmaceutical Preparations
IPO Year2021
CountryUnited States
UnderwriterIPO Intelligence Only

Insider Ownership Transactions

Total Amount Purchased: -2,153,212.00

Date Type Amount Purchased Purchaser
2024-05-17 Sale -113281.00 Dowdy Paula
2024-05-17 Sale -113281.00 RAKIN KEVIN
2024-05-17 Sale -113281.00 Kenny John P.
2024-05-17 Sale -113281.00 Makes Brigid
2024-05-17 Sale -113281.00 Jafri Amir
2024-03-25 Sale -159217.00 Dowdy Paula
2024-03-18 Sale -303468.00 Johnston Grace
2024-03-18 Sale -346820.00 Keyes Jeffry R.
2024-03-18 Buy 10000.00 LaPointe Christian
2024-03-18 Buy 25000.00 Hawkins Jeffrey Alan

SEC Filings


Form Type Description Pages Date
10-q Quarterly Reports 91 Nov 05, 2025
4 Insider transactions 1 Oct 17, 2025
8-k 8K-related 13 Sep 29, 2025
8-k 8K-related 20 Sep 26, 2025
4 Insider transactions 1 Sep 24, 2025
4 Insider transactions 1 Sep 24, 2025
4 Insider transactions 1 Sep 24, 2025
4 Insider transactions 1 Sep 24, 2025
4 Insider transactions 1 Sep 24, 2025
8-k 8K-related 40 Aug 08, 2025

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