Repligen (RGEN) Institutional Ownership

$176.89 -1.30 (-0.73%)

Closing price 09/18/2026 04:00 PM Eastern

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$176.90 +0.01 (+0.00%)

As of 09/18/2026 07:30 PM Eastern

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Current Institutional Ownership Percentage: 97.64%
Number of Institutional Buyers (last 12 months): 255
Total Institutional Inflows (last 12 months): $4.01B

Number of Institutional Sellers (last 12 months): 156
Total Institutional Outflows (last 12 months): $3.73B

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RGEN Institutional Buying and Selling by Quarter

Repligen Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	Tidal Investments LLC	8,863	$1.21M	0.0%	+75.2%	0.016%
9/9/2026	Engineers Gate Manager LP	7,646	$1.04M	0.0%	+146.0%	0.014%
9/9/2026	Baird Financial Group Inc.	144,571	$19.73M	0.0%	-15.8%	0.256%
9/8/2026	Arizona State Retirement System	14,395	$1.96M	0.0%	-2.0%	0.026%
9/8/2026	Waverly Advisors LLC	32,751	$4.47M	0.0%	+10.1%	0.058%
9/8/2026	Nykredit A S	1,968	$269K	0.0%	N/A	0.003%
8/27/2026	Corient Private Wealth LP	11,319	$1.54M	0.0%	+420.9%	0.020%
8/26/2026	Amundi	12,117	$1.65M	0.0%	-73.0%	0.021%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	8,600	$1.17M	0.0%	N/A	0.015%
8/23/2026	Angeles Wealth Management LLC	2,757	$376K	0.0%	+6.6%	0.005%
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8/21/2026	Nykredit A S	1,968	$269K	0.0%	N/A	0.003%
8/21/2026	B. Metzler seel. Sohn & Co. AG	26,361	$3.60M	0.0%	+52.8%	0.047%
8/20/2026	Moore Capital Management LP	37,549	$5.12M	0.1%	N/A	0.067%
8/20/2026	Northwestern Mutual Wealth Management Co.	381	$52K	0.0%	-52.5%	0.001%
8/20/2026	Thornburg Investment Management Inc.	43,887	$5.99M	0.1%	+49.3%	0.078%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	161,713	$22.06M	0.0%	-1.2%	0.287%
8/19/2026	Van ECK Associates Corp	17,887	$2.44M	0.0%	+173.8%	0.032%
8/19/2026	Hsbc Holdings PLC	24,170	$3.30M	0.0%	+22.2%	0.043%
8/18/2026	North Star Asset Management Inc.	77,561	$10.58M	0.4%	N/A	0.137%
8/18/2026	United Capital Financial Advisors LLC	2,790,650	$380.76M	2.1%	N/A	4.944%
8/18/2026	Equitable Holdings Inc.	11,404	$1.56M	0.0%	N/A	0.020%
8/18/2026	Public Employees Retirement System of Ohio	55,503	$7.57M	0.0%	N/A	0.098%
8/17/2026	Corient Private Wealth LP	11,286	$1.54M	0.0%	N/A	0.020%
8/17/2026	Bamco Inc. NY	748,466	$102.12M	0.2%	N/A	1.326%
8/17/2026	Bank of America Corp DE	426,291	$58.16M	0.0%	N/A	0.755%
8/15/2026	American Capital Management Inc.	361,055	$49.26M	2.2%	N/A	0.640%
8/15/2026	Caisse de depot et placement du Quebec	2,300	$314K	0.0%	N/A	0.004%
8/15/2026	Jupiter Topco LLC	406,001	$55.39M	0.0%	N/A	0.719%
8/15/2026	ABS Investment Management LLC	136	$191.02M	0.1%	N/A	0.000%
8/14/2026	Hsbc Holdings PLC	24,170	$3.30M	0.0%	N/A	0.043%
8/14/2026	EFG International AG	40,543	$5.53M	0.1%	N/A	0.072%
8/14/2026	Primecap Management Co. CA	323,268	$44.11M	0.0%	N/A	0.573%
8/14/2026	Canada Pension Plan Investment Board	1,900	$259K	0.0%	N/A	0.003%
8/14/2026	Osterweis Capital Management Inc.	110,995	$15.14M	0.7%	N/A	0.197%
8/14/2026	Legal & General Group Plc	68,988	$9.41M	0.0%	N/A	0.122%
8/14/2026	The Manufacturers Life Insurance Company	38,172	$5.21M	0.0%	N/A	0.068%
8/14/2026	Kelly Lawrence W & Associates Inc. CA	59,250	$8.08M	1.7%	N/A	0.105%
8/13/2026	Blue Whale Capital LLP	178,377	$24.34M	0.8%	N/A	0.316%
8/13/2026	Connor Clark & Lunn Investment Management Ltd.	23,577	$3.22M	0.0%	N/A	0.042%
8/13/2026	Bank of Nova Scotia	25,992	$3.55M	0.0%	N/A	0.046%
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8/12/2026	Commerce Bank	13,920	$1.90M	0.0%	N/A	0.025%
8/12/2026	Weitz Investment Management Inc.	40,800	$5.57M	0.4%	N/A	0.072%
8/12/2026	Northwestern Mutual Wealth Management Co.	381	$52K	0.0%	N/A	0.001%
8/12/2026	Evolve Private Wealth LLC	3,801	$519K	0.0%	N/A	0.007%
8/12/2026	William Blair Investment Management LLC	788,571	$107.59M	0.3%	N/A	1.397%
8/12/2026	Callan Family Office LLC	4,712	$643K	0.0%	N/A	0.008%
8/11/2026	Allworth Financial LP	524	$71K	0.0%	N/A	0.001%
8/11/2026	B. Metzler seel. Sohn & Co. AG	26,361	$3.60M	0.0%	N/A	0.047%
8/11/2026	D L Carlson Investment Group Inc.	4,098	$559K	0.1%	N/A	0.007%
8/10/2026	Diversify Advisory Services LLC	18,594	$2.44M	0.0%	N/A	0.033%
8/8/2026	Alpine Woods Capital Investors LLC	2,165	$295K	0.1%	N/A	0.004%
8/7/2026	Rice Hall James & Associates LLC	18,833	$2.57M	0.1%	N/A	0.033%
8/7/2026	Trust Co. of Vermont	520	$71K	0.0%	N/A	0.001%
8/7/2026	TimesSquare Capital Management LLC	446,964	$60.98M	0.9%	N/A	0.792%
8/7/2026	Persistent Asset Partners Ltd	3,902	$532K	0.2%	N/A	0.007%
8/6/2026	Global Retirement Partners LLC	4,799	$655K	0.0%	N/A	0.009%
8/6/2026	GSA Capital Partners LLP	2,461	$336K	0.0%	N/A	0.004%
8/3/2026	Oppenheimer Asset Management Inc.	46,326	$6.32M	0.1%	N/A	0.082%
7/10/2026	Wasatch Advisors LP	1,590,251	$216.97M	1.4%	+27.9%	2.819%
7/10/2026	Handelsbanken Fonder AB	22,070	$3.01M	0.0%	+11.8%	0.039%
7/9/2026	Everhart Financial Group Inc.	2,219	$303K	0.0%	N/A	0.004%
7/8/2026	Trust Point Inc.	1,755	$239K	0.0%	-32.2%	0.003%
7/8/2026	Assenagon Asset Management S.A.	70,995	$9.69M	0.0%	N/A	0.126%
7/7/2026	Balefire LLC	2,019	$275K	0.0%	N/A	0.004%
7/7/2026	GAMMA Investing LLC	1,944	$265K	0.0%	+28.7%	0.003%
7/7/2026	Harbor Investment Advisory LLC	523	$71K	0.0%	+198.9%	0.001%
7/7/2026	Moody National Bank Trust Division	17,728	$2.42M	0.2%	N/A	0.031%
6/18/2026	Pacer Advisors Inc.	8,337	$982K	0.0%	-20.4%	0.015%
6/1/2026	Integrated Investment Consultants LLC	2,248	$265K	0.1%	-4.7%	0.004%
5/29/2026	Perceptive Advisors LLC	280,541	$33.05M	0.6%	-11.1%	0.497%
5/28/2026	Avidity Partners Management LP	77,800	$9.17M	1.8%	+54.7%	0.138%
5/27/2026	Alpine Woods Capital Investors LLC	2,297	$271K	0.1%	-62.6%	0.004%
5/26/2026	Glenmede Trust Co. NA	8,268	$974K	0.0%	+10.3%	0.015%
5/22/2026	Summitry LLC	2,385	$281K	0.0%	+37.0%	0.004%
5/22/2026	Segall Bryant & Hamill LLC	155,025	$18.27M	0.2%	+5.5%	0.275%
5/19/2026	Kensington Investment Counsel LLC	2,107	$248K	0.1%	-59.8%	0.004%
5/18/2026	Amundi	44,959	$5.30M	0.0%	+7.0%	0.080%
5/18/2026	California State Teachers Retirement System	61,860	$7.29M	0.0%	+22.1%	0.110%
5/18/2026	Ranger Investment Management L.P.	161,135	$18.99M	1.4%	-0.8%	0.286%
5/18/2026	Eversept Partners LP	120,785	$14.23M	0.8%	N/A	0.214%
5/16/2026	American Capital Management Inc.	357,720	$42.15M	2.3%	+6.7%	0.634%
5/16/2026	The Manufacturers Life Insurance Company	49,940	$5.88M	0.0%	-12.5%	0.089%
5/16/2026	Maverick Capital Ltd.	1,518,805	$178.95M	2.1%	N/A	2.693%
5/16/2026	Quantinno Capital Management LP	11,888	$1.40M	0.0%	+5.4%	0.021%
5/15/2026	Rice Hall James & Associates LLC	20,151	$2.37M	0.1%	-1.9%	0.036%
5/15/2026	Waverly Advisors LLC	29,742	$3.50M	0.0%	-3.5%	0.053%
5/15/2026	Granahan Investment Management LLC	86,953	$10.25M	0.5%	+20.8%	0.154%
5/15/2026	Wealth Alliance LLC	2,529	$298K	0.0%	+18.1%	0.004%
5/14/2026	Public Employees Retirement System of Ohio	52,811	$6.22M	0.0%	+16.9%	0.094%
5/14/2026	Bank of Nova Scotia	22,017	$2.59M	0.0%	-50.5%	0.039%
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5/14/2026	Gibbs Wealth Management	10,713	$1.26M	0.2%	+99.9%	0.019%
5/14/2026	Sei Investments Co.	272,103	$32.06M	0.0%	+49.5%	0.482%
5/14/2026	State of Wyoming	2,101	$248K	0.0%	-6.5%	0.004%
5/13/2026	First Trust Advisors LP	630,070	$74.24M	0.1%	+122.8%	1.117%
5/12/2026	Westpac Banking Corp	11,410	$1.34M	0.1%	-7.2%	0.020%
5/8/2026	PNC Financial Services Group Inc.	7,271	$857K	0.0%	+62.9%	0.013%
5/7/2026	Dimensional Fund Advisors LP	854,741	$100.68M	0.0%	+6.3%	1.516%
5/7/2026	KBC Group NV	1,837	$216K	0.0%	+20.7%	0.003%
5/7/2026	Swiss National Bank	105,800	$12.47M	0.0%	+0.4%	0.188%
5/7/2026	Roubaix Capital LLC	54,555	$6.43M	3.0%	N/A	0.097%

RGEN Institutional Ownership - Frequently Asked Questions

During the previous two years, 479 institutional investors and hedge funds held shares of Repligen. The most heavily invested institutionals were Opti Capital Management LP ($2.40B), Vanguard Group Inc. ($818.31M), Price T Rowe Associates Inc. MD ($753.60M), United Capital Financial Advisors LLC ($380.76M), State Street Corp ($241.64M), Wasatch Advisors LP ($216.97M), and Invesco Ltd. ($205.88M).Learn more on Repligen's institutional investors.

97.64% of Repligen's stock is owned by institutional investors. Learn more on RGEN's institutional investor holdings.

Of the 409 institutional investors that purchased Repligen's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: United Capital Financial Advisors LLC ($5.55M), Price T Rowe Associates Inc. MD ($2.27M), Opti Capital Management LP ($2.18M), Wasatch Advisors LP ($1.59M), Maverick Capital Ltd. ($1.52M), Massachusetts Financial Services Co. MA ($1.22M), and Bamco Inc. NY ($1.09M).

Institutional investors have bought a total of 28,105,888 shares in the last 24 months. This purchase volume represents approximately $4.01B in transactions.

Of the 156 institutional investors that sold Repligen's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Lazard Asset Management LLC ($12.31M), Nuveen LLC ($3.91M), UBS Group AG ($1.40M), Brown Capital Management LLC ($731.30K), Balyasny Asset Management L.P. ($652.19K), T. Rowe Price Investment Management Inc. ($528.69K), and Invesco Ltd. ($506.09K).

Institutional investors have sold a total of 23,560,965 shares in the last 24 months. This volume of shares sold represents approximately $3.73B in transactions.

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Institutional ownership data for NASDAQ:RGEN is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.

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Repligen (RGEN) Institutional Ownership

RGEN Institutional Buying and Selling by Quarter

Repligen Major Shareholders & Ownership History

RGEN Institutional Ownership - Frequently Asked Questions

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Repligen (RGEN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Repligen (NASDAQ:RGEN)

RGEN Institutional Buying and Selling by Quarter

Repligen Major Shareholders & Ownership History

RGEN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of RGEN shares?

What percentage of Repligen's stock is owned by institutional investors?

Which institutional investors have been buying Repligen's stock?

How much institutional buying is happening at Repligen?

Which of Repligen's major shareholders have been selling company stock?

How much institutional selling is happening at Repligen?

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