QSI

Quantum-Si incorporated

Healthcare · Medical Devices

Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS). The company offers Platinum and Platinum Pro NGPS instruments for single-molecule, amino acid level resolution, and automated data analysis; library preparation kits to prepare a customer's protein sample for sequencing; and sequencing kits, which contain the reagents and consumables used to perform NGPS. It also provides Platinum analysis software, a cloud-based solution that automates data analysis workflows and visualizes the sequencing results. The company was founded in 2013 and is headquartered in Branford, Connecticut.

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Live Price Chart

Trade Activity

Buy

Sell

121 trades · Jun 17, 21 → Oct 20, 25

Trade Summary

121

Total Trades

115

Buy Orders

19.41M shares

Sell Orders

2.68M shares

+16.73M

Net Position

Trade History

2025

4 trades

Date	Type	Fund	Shares	% of Fund
Oct 20	Sell	ARKG	86,849	0.018%
Oct 17	Sell	ARKG	137,588	0.025%
Oct 16	Sell	ARKG	498,068	0.105%
Jan 3	Sell	ARKG	452,570	0.212%

2024

1 trades

Date	Type	Fund	Shares	% of Fund
Dec 27	Sell	ARKG	1,470,517	0.431%

2023

16 trades

Date	Type	Fund	Shares	% of Fund
Aug 8	Buy	ARKG	20,263	0.002%
Aug 7	Buy	ARKG	48,086	0.005%
Jul 13	Buy	ARKG	1,434,997	0.151%
Jul 12	Buy	ARKG	20,742	0.002%
Jul 7	Buy	ARKG	499	0.000%
Jul 6	Buy	ARKG	86,583	0.008%
Jul 5	Buy	ARKG	5,946	0.001%
Jul 3	Buy	ARKG	61,088	0.005%
Jun 30	Buy	ARKG	19,011	0.002%
Jun 29	Buy	ARKG	34,547	0.003%
Jun 27	Buy	ARKG	63,416	0.005%
Jun 26	Buy	ARKG	290,789	0.022%
Jun 23	Buy	ARKG	450,701	0.034%
Jun 22	Buy	ARKG	117,440	0.008%
Jun 21	Buy	ARKG	149,721	0.009%
Jun 20	Buy	ARKG	366,508	0.024%

2022

30 trades

Date	Type	Fund	Shares	% of Fund
Nov 21	Buy	ARKG	563,250	0.070%
Nov 18	Buy	ARKG	13,727	0.002%
Nov 9	Buy	ARKG	79,408	0.009%
Nov 8	Buy	ARKG	3,733	0.000%
Nov 7	BUY	ARKG	29,470	0.003%
Nov 4	Buy	ARKG	83,639	0.009%
Nov 3	Buy	ARKG	731,788	0.084%
Nov 2	Buy	ARKG	26,501	0.003%
Oct 24	Buy	ARKG	34,074	0.004%
Apr 29	Buy	ARKG	33,601	0.005%
Apr 28	Buy	ARKG	25,000	0.004%
Apr 27	Buy	ARKG	28,990	0.004%
Apr 26	Buy	ARKG	47,706	0.007%
Apr 22	Buy	ARKG	258,680	0.035%
Apr 21	Buy	ARKG	241,621	0.032%
Apr 20	Buy	ARKG	50,598	0.007%
Apr 19	Buy	ARKG	57,858	0.008%
Apr 18	Buy	ARKG	39,726	0.005%
Apr 13	Buy	ARKG	15,000	0.002%
Apr 12	Buy	ARKG	15,000	0.002%
Apr 11	Buy	ARKG	66,118	0.008%
Jan 24	Buy	ARKG	350,766	0.047%
Jan 21	Buy	ARKG	79,627	0.011%
Jan 19	Buy	ARKG	43,159	0.005%
Jan 14	Buy	ARKG	400	0.000%
Jan 13	Buy	ARKG	30,121	0.004%
Jan 12	Buy	ARKG	9,680	0.001%
Jan 10	Buy	ARKG	9,614	0.001%
Jan 7	Buy	ARKG	94,738	0.013%
Jan 6	Buy	ARKG	101,895	0.014%

2021

70 trades

Date	Type	Fund	Shares	% of Fund
Dec 17	Buy	ARKG	26,126	0.003%
Dec 16	Buy	ARKG	59,758	0.007%
Dec 15	Buy	ARKG	42,596	0.005%
Dec 14	Buy	ARKG	51,318	0.006%
Dec 13	Buy	ARKG	69,924	0.008%
Dec 10	Buy	ARKG	82,963	0.010%
Dec 9	Buy	ARKG	39,948	0.004%
Dec 6	Buy	ARKG	247,642	0.030%
Dec 3	Buy	ARKG	74,968	0.010%
Nov 17	Buy	ARKG	98,089	0.011%
Nov 16	Buy	ARKG	16,548	0.002%
Nov 15	Buy	ARKG	115,300	0.013%
Nov 12	Buy	ARKG	13,600	0.002%
Nov 11	Buy	ARKG	87,800	0.010%
Oct 18	Buy	ARKG	202,252	0.024%
Oct 15	Buy	ARKG	82,166	0.010%
Oct 13	Buy	ARKG	19,900	0.003%
Oct 12	Buy	ARKG	80,290	0.010%
Oct 11	Buy	ARKG	44,724	0.005%
Oct 8	Buy	ARKG	112,210	0.013%
Oct 7	Buy	ARKG	23,401	0.000%
Oct 6	Buy	ARKG	120,419	0.010%
Oct 5	Buy	ARKG	119,754	0.014%
Oct 1	Buy	ARKG	104,334	0.012%
Sep 29	Buy	ARKG	438,626	0.053%
Sep 28	Buy	ARKG	398,229	0.047%
Sep 27	Buy	ARKG	33,592	0.004%
Sep 24	Buy	ARKG	241,956	0.027%
Sep 23	Buy	ARKG	35,000	0.004%
Sep 15	Buy	ARKG	110,180	0.013%
Sep 14	Buy	ARKG	18,660	0.000%
Aug 30	Buy	ARKG	163,652	0.018%
Aug 27	Buy	ARKG	1,818	0.000%
Aug 26	Buy	ARKG	34,201	0.004%
Aug 25	Buy	ARKG	117,584	0.013%
Aug 24	Buy	ARKG	90,017	0.009%
Aug 23	Buy	ARKG	91,549	0.010%
Aug 20	Buy	ARKG	7,856	0.001%
Aug 19	Buy	ARKG	159,178	0.017%
Aug 18	Buy	ARKG	130,116	0.013%
Aug 17	Buy	ARKG	163,972	0.016%
Aug 16	Buy	ARKG	1,210,607	0.118%
Aug 2	Buy	ARKG	70,000	0.008%
Jul 29	Buy	ARKG	300,000	0.038%
Jul 28	Buy	ARKG	729,893	0.096%
Jul 27	Buy	ARKG	407,400	0.054%
Jul 26	Buy	ARKG	506,400	0.071%
Jul 23	Buy	ARKG	294,054	0.040%
Jul 22	Buy	ARKG	804,500	0.112%
Jul 21	Buy	ARKG	16,756	0.002%
Jul 20	Buy	ARKG	212,468	0.030%
Jul 19	Buy	ARKG	126,412	0.017%
Jul 16	Buy	ARKG	301,320	0.040%
Jul 15	Buy	ARKG	347,305	0.047%
Jul 14	Buy	ARKG	182,566	0.024%
Jul 13	Buy	ARKG	281,276	0.036%
Jul 8	Buy	ARKG	231,750	0.029%
Jul 7	Buy	ARKG	359,389	0.044%
Jul 6	Buy	ARKG	43,809	0.006%
Jul 2	Buy	ARKG	147,242	0.019%
Jul 1	Buy	ARKG	350,312	0.044%
Jun 30	Buy	ARKG	266,687	0.034%
Jun 28	Buy	ARKG	469,535	0.061%
Jun 25	Buy	ARKG	127,754	0.016%
Jun 24	Buy	ARKG	95,199	0.011%
Jun 23	Buy	ARKG	271,353	0.032%
Jun 22	Buy	ARKG	18,700	0.002%
Jun 21	Buy	ARKG	59,443	0.006%
Jun 18	Buy	ARKG	8,568	0.001%
Jun 17	Buy	ARKG	688,036	0.063%