RGENRepligen Corporation

$173.84+42% 1Y

Who owns RGEN

477 institutions reported holding RGEN for 2026Q2, together 117% of the company, more than the 442 a quarter earlier.

477

Institutions reporting a position · as of 2026Q2 · up from 442 the quarter before

Shares held by institutions
66.1M

Shares held by institutions · 117% of the company · long US equity positions only, as reported on Form 13F

Reported value
$9.00B

Reported value · at Jun 30, 2026 prices, not today's

Opened vs closed
96 / 62

Opened vs closed · new positions against positions exited in the latest quarter

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
96
Positions exited
62
Added to
165
Reduced
132
Shares sold shortsettled Sep 15, 2026
6.7M
Short interestof shares outstanding
12%
Days to coverat the average daily volume
7.1
Change in the short positionsince the Aug 31, 2026 count
+1.5%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q247766.1M$9.00B
2026Q144265.3M$7.73B
2025Q446762.3M$10.2B
2025Q345059.7M$7.98B
2025Q243958.0M$7.17B
2025Q143457.2M$7.32B
2024Q442755.8M$8.04B
2024Q343955.4M$8.23B
2024Q245155.9M$7.05B
2024Q148056.2M$10.3B
2023Q446358.0M$10.4B
2023Q343457.0M$9.05B
2023Q244054.6M$7.72B
2023Q144554.1M$9.06B
2022Q444153.5M$9.06B
2022Q343251.0M$9.55B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.5.4Mn/a$735M
VANGUARD GROUP INC5.1Mn/a$703M
FMR LLC3.3Mn/a$454M
UNITED CAPITAL FINANCIAL ADVISERS, LLC2.8Mn/a$381M
MAVERICK CAPITAL LTD2.0Mn/a$271M
STATE STREET CORP1.8Mn/a$246M
PRICE T ROWE ASSOCIATES INC /MD/1.8Mn/a$239M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/1.6Mn/a$221M
WASATCH ADVISORS LP1.6Mn/a$217M
AMERIPRISE FINANCIAL INC1.6Mn/a$215M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20266.7M12%7.1
Aug 31, 20266.6M12%6.7
Aug 14, 20266.1M11%6.4
Jul 31, 20266.1M11%3.9
Jul 15, 20265.8M10%7.9
Jun 30, 20266.0M11%4.7
Jun 15, 20265.7M10%6.4
May 29, 20266.0M11%4.9
May 15, 20265.7M10%3.9
Apr 30, 20265.5M9.7%5.0
Apr 15, 20265.5M9.7%7.0
Mar 31, 20265.6M9.8%6.3

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…