Quantum-Si Incorporated (NASDAQ: QSI) Stock Information | RedChip
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Quantum-Si Incorporated (NASDAQ: QSI)
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$0.83
+0.0003 ( +0.04% ) 71.5K

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 $0.83
Previous Close $0.83
Volume 71.5K
Market Cap $180.13M
Day Range $0.84 - $0.86
52 Week Range $0.69 - $3.10
Shares Outstanding 217.76M
Change % +0.04%
Net Change ▲ 0.0003
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
2024-08-13 Buy 50000.00 Keyes Jeffry R.
2024-08-13 Buy 25000.00 Hawkins Jeffrey Alan
2024-08-13 Buy 25000.00 LaPointe Christian
2024-08-13 Buy 138900.00 Kummeth Charles R.
2024-06-25 Sale -4359.00 Johnston Grace
2024-06-07 Sale -113281.00 Kummeth Charles R.
2024-05-30 Sale -527777.00 Kummeth Charles R.
2024-05-17 Sale -113281.00 Mendel Scott
2024-05-17 Sale -113281.00 Dowdy Paula
2024-05-17 Sale -113281.00 Kenny John P.

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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