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Ownership — QSI
Institutional Holdings
Insider Transactions
US Institutional Ownership
22.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
Vanguard Capital Management LLC
7.58M
$6.0M
3.48%
+556.3K
2026-06-30
ARK Investment Management LLC
7.17M
$6.0M
3.29%
+288.8K
2026-06-30
BlackRock, Inc.
5.23M
$4.0M
2.40%
-8.19M
2026-06-30
Sumitomo Mitsui Trust Group, Inc.
3.89M
$3.0M
1.78%
-506.4K
2026-06-30
Millennium Management LLC
3.13M
$2.0M
1.44%
+2.94M
2026-06-30
UBS Group AG
2.56M
$2.0M
1.18%
+859.4K
2026-06-30
Jane Street Group, LLC
2.42M
$2.0M
1.11%
+2.14M
2026-06-30
AQR Capital Management LLC
2.35M
$2.0M
1.08%
-43.5K
2026-06-30
Geode Capital Management, LLC
2.24M
$1.0M
1.03%
-1.60M
2026-06-30
Vanguard Fiduciary Trust Co
1.12M
--
0.51%
-569
2026-06-30
State Street Corp
890.7K
--
0.41%
-2.88M
2026-06-30
Fosun International Ltd
743.9K
--
0.34%
--
2026-06-30
Renaissance Technologies LLC
553.9K
--
0.25%
+436.0K
2026-06-30
Vanguard Portfolio Management LLC
497.1K
--
0.23%
-1.02M
2026-06-30
Goldman Sachs Group Inc
476.3K
--
0.22%
+32.1K
2026-06-30
Northern Trust Corp
450.5K
--
0.21%
-810.2K
2026-06-30
Invesco Ltd.
443.9K
--
0.20%
+37.2K
2026-06-30
BNP Paribas Financial Markets
398.6K
--
0.18%
+360.2K
2026-06-30
Ieq Capital, LLC
350.8K
--
0.16%
-6.9K
2026-06-30
Citadel Advisors LLC
332.9K
--
0.15%
+113.4K
2026-06-30
Morgan Stanley
323.5K
--
0.15%
+193.5K
2026-06-30
IQ EQ Fund MANAGEMENT (IRELAND) Ltd
321.1K
--
0.15%
+29.0K
2026-06-30
Knollwood Investment Advisory, LLC
300.0K
--
0.14%
--
2026-06-30
IMC-Chicago, LLC
285.8K
--
0.13%
+64.9K
2026-06-30
Bridgeway Capital Management, LLC
206.1K
--
0.09%
-55.0K
2026-06-30
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