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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — GLSI
Institutional Holdings
Insider Transactions
US Institutional Ownership
11.6%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
433.9K
$10.0M
2.96%
+62.4K
2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC
298.3K
$7.0M
2.03%
--
2026-03-31
GEODE CAPITAL MANAGEMENT, LLC
155.5K
$3.0M
1.06%
+3.8K
2026-03-31
STATE STREET CORP
133.9K
$3.0M
0.91%
+36.1K
2026-03-31
Nuveen, LLC
88.7K
$2.0M
0.60%
--
2026-03-31
NORTHERN TRUST CORP
75.1K
$1.0M
0.51%
+2.1K
2026-03-31
VANGUARD PORTFOLIO MANAGEMENT LLC
58.9K
$1.0M
0.40%
--
2026-03-31
Bank of New York Mellon Corp
46.5K
$1.0M
0.32%
+32.7K
2026-03-31
VANGUARD FIDUCIARY TRUST CO
44.9K
$1.0M
0.31%
--
2026-03-31
Russell Investments Group, Ltd.
39.7K
--
0.27%
+39.1K
2026-03-31
GOLDMAN SACHS GROUP INC
39.5K
--
0.27%
+18.0K
2026-03-31
Ancora Advisors LLC
37.5K
--
0.26%
--
2026-03-31
MORGAN STANLEY
29.8K
--
0.20%
+3.4K
2026-03-31
SEI INVESTMENTS CO
26.1K
--
0.18%
--
2026-03-31
MARSHALL WACE, LLP
25.7K
--
0.17%
-6.4K
2026-03-31
Informed Momentum Co LLC
21.4K
--
0.15%
--
2026-03-31
UBS Group AG
21.1K
--
0.14%
+15.0K
2026-03-31
STATE OF WISCONSIN INVESTMENT BOARD
20.3K
--
0.14%
--
2026-03-31
MILLENNIUM MANAGEMENT LLC
17.4K
--
0.12%
+1.9K
2026-03-31
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
16.6K
--
0.11%
-2.4K
2026-03-31
STRS OHIO
13.7K
--
0.09%
+8.0K
2026-03-31
Vanguard Global Advisers, LLC
10.3K
--
0.07%
--
2026-03-31
RAYMOND JAMES FINANCIAL INC
9.8K
--
0.07%
+9.1K
2026-03-31
RHUMBLINE ADVISERS
8.0K
--
0.05%
-40
2026-03-31
DEUTSCHE BANK AG\
5.2K
--
0.04%
-889
2026-03-31
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