REPLIGEN CORP

RGENNASDAQ

$189.50+7.80 (+4.29% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

REPLIGEN CORP price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+26.2%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	9.54%	$735M	0.01%	Not reported
FMR LLC	5.90%	$454M	0.02%	Not reported
United Capital Financial Advisors, LLC	4.95%	$381M	2.10%	Add 0.60%
Vanguard Capital Management LLC	4.27%	$329M	0.01%	Not reported
Vanguard Portfolio Management LLC	4.10%	$316M	0.01%	Not reported
Maverick Capital Ltd	3.52%	$271M	2.39%	Add 30.67%
State Street Corp	3.19%	$246M	0.01%	Not reported
Massachusetts Financial Services Co	2.87%	$221M	0.07%	Add 15.71%
Wasatch Advisors LP	2.82%	$217M	1.42%	Add 27.88%
Ameriprise Financial Inc	2.79%	$215M	0.04%	Not reported
Bank of New York Mellon Corp	2.70%	$208M	0.03%	Not reported
T. Rowe Price Investment Management, Inc.	2.50%	$193M	0.13%	Add 3.29%
Invesco Ltd.	2.46%	$189M	0.02%	Not reported
Holocene Advisors, LP	2.29%	$176M	0.40%	Add 82.28%
RTW Investments, LP	2.20%	$169M	1.45%	Add 2.87%
Geode Capital Management, LLC	1.88%	$145M	0.01%	Not reported
Congress Asset Management Co	1.79%	$138M	0.85%	Add 26.87%
Conestoga Capital Advisors, LLC	1.74%	$134M	2.91%	Reduce 10.64%
Goldman Sachs Group Inc	1.71%	$132M	0.01%	Not reported
Dimensional Fund Advisors LP	1.68%	$130M	0.02%	Not reported
Stephens Investment Management Group LLC	1.66%	$128M	1.37%	Add 24.02%
Alliancebernstein L.P.	1.41%	$93.7M	0.03%	Not reported
UBS Group AG	1.41%	$108M	0.01%	Not reported
William Blair Investment Management, LLC	1.40%	$108M	0.32%	New Not reported
Bamco Inc	1.33%	$102M	0.15%	Add 36.50%
Fred Alger Management, LLC	1.30%	$100M	0.33%	Add 68.76%
Schroder Investment Management Group	1.23%	$95M	0.07%	Add 33.85%
Geneva Capital Management LLC	1.16%	$89.5M	2.05%	Reduce 5.43%
First Trust Advisors LP	1.12%	$86.5M	0.05%	Add 0.66%
Norges Bank	1.02%	$78.5M	0.01%	Not reported
Voya Investment Management LLC	0.97%	$74.9M	0.06%	Not reported
Morgan Stanley	0.96%	$74.1M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.85%	$65.7M	0.01%	Not reported
Northern Trust Corp	0.79%	$60.6M	0.01%	Not reported
Thrivent Financial for Lutherans	0.77%	$59.6M	0.10%	Add 2.70%
JPMorgan Chase & Co	0.76%	$58.9M	0.00%	Not reported
Bank of America Corp	0.76%	$58.2M	0.00%	Not reported
Jupiter Topco LLC	0.72%	$55.4M	0.02%	Not reported
Vestal Point Capital, LP	0.71%	$54.6M	1.28%	Reduce 56.76%
Impax Asset Management Group plc	0.70%	$54.1M	0.35%	Reduce 9.57%
Citadel Advisors LLC	0.67%	$51.3M	0.01%	Not reported
Sei Investments Co	0.66%	$50.9M	0.04%	Not reported
American Capital Management Inc	0.64%	$49.3M	2.21%	Add 0.93%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	0.63%	$48.7M	0.05%	Reduce 5.32%
DF Dent & Co Inc	0.63%	$48.7M	0.92%	Reduce 2.26%
Balyasny Asset Management L.P.	0.63%	$48.5M	0.06%	Not reported
Vanguard Fiduciary Trust Co	0.60%	$45.9M	0.01%	Not reported
Granahan Investment Management, LLC	0.59%	$45.3M	1.62%	Not reported
Primecap Management Co	0.57%	$44.1M	0.03%	Add 37.52%
Champlain Investment Partners, LLC	0.57%	$43.5M	1.12%	Reduce 54.03%

50 of 450 holders

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