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QSIQSI
20 quarters

Position history for ARK Investment Management LLCARK Investment Management LLC's holdings in QUANTUM SI INC

ARK Investment Management LLC holds 6.9M shares of QSI (QUANTUM SI INC), worth $5.3M as of 2026-Q1. The position was decreased (-2.0% shares). QSI represents 0.0% of ARK Investment Management LLC's portfolio.

Current Value

$5.3M

Current Shares

6.9M

Total Value Change

-$44.3M

Total Shares Change

+2.8M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Decreased
6.9M
-2.0%
$5.3M0.0%$0.95
0
2025-Q4
Decreased
7M
-7.9%
$7.7M0.1%$1.11
0
2025-Q3
Decreased
7.6M
-4.2%
$10.7M0.1%$1.39
0
2025-Q2
Decreased
8M
-8.6%
$15.6M0.1%$1.95
0
2025-Q1
Decreased
8.7M
-1.5%
$10.5M0.1%$1.27
0
2024-Q4
Decreased
8.8M
-25.3%
$23.9M0.2%$3.33
0
2024-Q3
Decreased
11.8M
-4.6%
$10.4M0.1%$0.91
0
2024-Q2
Decreased
12.4M
-2.8%
$13M0.1%$1.05
0
2024-Q1
Decreased
12.8M
-17.7%
$25.2M0.2%$1.97
0
2023-Q4
Increased
15.5M
+7.4%
$31.2M0.2%$2.01
37
2023-Q3
Increased
14.4M
+13.3%
$24M0.2%$1.66
39
2023-Q2
Increased
12.8M
+9.0%
$22.8M0.2%$1.71
37
2023-Q1
Decreased
11.7M
-1.3%
$20.6M0.1%$1.65
0
2022-Q4
Decreased
11.9M
-10.4%
$21.7M0.2%$1.83
0
2022-Q3
Decreased
13.2M
-4.5%
$36.4M0.3%$2.73
0
2022-Q2
Increased
13.9M
+3.7%
$58.9M0.3%$2.41
37
2022-Q1
Increased
13.4M
+2.3%
$62.6M0.3%$5.00
36
2021-Q4
Increased
13.1M
+2.9%
$102.8M0.3%$7.83
37
2021-Q3
Increased
12.7M
+213.7%
$105.9M0.3%$8.41
58
2021-Q2
New
4M
-
$49.6M0.1%$12.54
41

Other major holders of QSI: GLENVIEW CAPITAL MANAGEMENT, LLC, Alyeska Investment Group, L.P., MILLENNIUM MANAGEMENT LLC

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