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Business Summary
Filings
Ownership
Valuation
Ownership — RGEN
Institutional Holdings
Insider Transactions
US Institutional Ownership
100.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
5.38M
$734.0M
9.54%
-608.1K
2026-06-30
FMR LLC
3.33M
$453.0M
5.90%
+439.9K
2026-06-30
UNITED CAPITAL FINANCIAL ADVISORS, LLC
2.79M
$380.0M
4.95%
+16.7K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
2.41M
$328.0M
4.27%
+14.7K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
2.31M
$315.0M
4.10%
+7.7K
2026-06-30
MAVERICK CAPITAL LTD
1.98M
$270.0M
3.52%
+465.7K
2026-06-30
STATE STREET CORP
1.80M
$245.0M
3.19%
+23.2K
2026-06-30
PRICE T ROWE ASSOCIATES INC /MD/
1.75M
$239.0M
3.11%
-3.13M
2026-06-30
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
1.62M
$220.0M
2.87%
+219.5K
2026-06-30
WASATCH ADVISORS LP
1.59M
$216.0M
2.82%
+346.7K
2026-06-30
AMERIPRISE FINANCIAL INC
1.58M
$215.0M
2.79%
+650.9K
2026-06-30
Bank of New York Mellon Corp
1.52M
$207.0M
2.70%
-8.5K
2026-06-30
T. Rowe Price Investment Management, Inc.
1.41M
$192.0M
2.50%
+44.9K
2026-06-30
Invesco Ltd.
1.39M
$189.0M
2.46%
+109.0K
2026-06-30
Holocene Advisors, LP
1.29M
$176.0M
2.29%
+583.3K
2026-06-30
RTW INVESTMENTS, LP
1.24M
$169.0M
2.20%
+34.6K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
1.06M
$144.0M
1.88%
-2.0K
2026-06-30
CONGRESS ASSET MANAGEMENT CO
1.01M
$138.0M
1.79%
+214.4K
2026-06-30
Conestoga Capital Advisors, LLC
981.0K
$133.0M
1.74%
-116.8K
2026-06-30
GOLDMAN SACHS GROUP INC
965.4K
$131.0M
1.71%
+314.1K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
949.9K
$129.0M
1.68%
+95.1K
2026-06-30
Stephens Investment Management Group LLC
937.1K
$127.0M
1.66%
+181.5K
2026-06-30
FRANKLIN RESOURCES INC
890.2K
$121.0M
1.58%
-302.9K
2026-06-30
ALLIANCEBERNSTEIN L.P.
795.3K
$93.0M
1.41%
-36.5K
2026-06-30
UBS Group AG
795.0K
$108.0M
1.41%
+124.7K
2026-06-30
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