Back to RENAISSANCE TECHNOLOGIES LLC RENAISSANCE TECHNOLOGIES LLC

QSIQSI
11 quarters

Position history for RENAISSANCE TECHNOLOGIES LLCRENAISSANCE TECHNOLOGIES LLC's holdings in QUANTUM SI INC

Yes. Renaissance Technologies holds 553,871 shares of QSI (Quantum Si), worth $490,176, as of its Q2 2026 13F filing. It increased the position from 117,900 shares in Q1 2026. Renaissance Technologies has held QSI since Q1 2026, across 2 quarterly 13F filings.

Current Value

$490,176

Current Shares

553,871

Total Value Change

+$421,176

Total Shares Change

+516,315

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
553,871
+369.8%
$490,1760.0%$0.89
39
2026-Q1
New
117,900
-
$91,2550.0%$0.77
30
2025-Q3
Exited
0
-100.0%
$00.0%$1.41
0
2025-Q2
Decreased
89,200
-89.8%
$174,8320.0%$1.96
0
2025-Q1
Increased
871,756
+60.0%
$1M0.0%$1.20
36
2024-Q4
Increased
544,956
+1211.4%
$1.5M0.0%$2.70
41
2024-Q3
New
41,556
-
$36,6610.0%$0.88
28
2023-Q3
Exited
0
-100.0%
$00.0%$1.66
0
2023-Q2
Increased
223,256
+97.8%
$400,0000.0%$1.79
38
2023-Q1
Increased
112,856
+200.5%
$199,0000.0%$1.76
37
2022-Q4
New
37,556
-
$69,0000.0%$1.83
29

Other major holders of QSI: ARK Investment Management LLC, GLENVIEW CAPITAL MANAGEMENT, LLC

Analytics tracking helps us improve the product. Essential functions stay on either way. How analytics data is used