Repligen Corporation (RGEN) Ownership

165.76 ↓0.76 (-0.46%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

T. Rowe Price Associates, Inc. is the biggest individual institutional holder of Repligen Corporation (RGEN), owning a total of 6.6 million shares. Combined, the top 39 institutional holders of RGEN own 93.15% of the company with a total of 52.3 million shares.

In the latest ownership report on June 30th 2025, the top 39 institutional holders decreased their combined ownership of RGEN by 125 thousand shares. 5 institutions bought 2,554,583 total additional shares and increased their ownership by an average of 727.99%. However 15 institutions sold 2,679,108 total shares and decreased their ownership by an average of 6.57%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of Repligen Corporation decreased by a net total of -124,525 in the latest quarter.

Institution Ownership Chart

Your browser does not support this chart.

Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price Associates, Inc.11.739%-12.717%6,603,954-962,1392025-06-30
BlackRock Inc10.805%-10.817%6,078,430-737,2572025-06-30
Vanguard Group Inc9.025%-0.054%5,077,172-2,7222025-06-30
Point72 Asset Management, L.P.3.401%71.365%1,913,190796,7452025-06-30
State Street Corp2.884%-3.926%1,622,623-66,3142025-06-30
FMR Inc2.868%120.275%1,613,304880,9002025-06-30
Champlain Investment Partners, LLC2.491%-4.297%1,401,088-62,9072025-06-30
Amvescap Plc.2.451%-17.638%1,379,127-295,3502025-06-30
Bank of New York Mellon Corp2.355%-1.830%1,324,778-24,6972025-06-30
Sands Capital Management, LLC2.224%-3.331%1,251,088-43,1082025-06-30
Citadel Advisors Llc1.890%-20.055%1,063,056-266,6792025-06-30
Brown Capital Management, LLC1.787%16.347%1,005,276141,2412025-06-30
Geode Capital Management, LLC1.743%-1.091%980,744-10,8202025-06-30
Conestoga Capital Advisors, LLC1.737%-0.341%976,907-3,3402025-06-30
Holocene Advisors, LP1.665%-2.413%936,814-23,1682025-06-30
AllianceBernstein L.P.1.611%-11.501%906,393-117,7872025-06-30
Dimensional Fund Advisors, Inc.1.365%7.617%768,00554,3552025-06-30
Impax Asset Management Group PLC1.353%-5.403%761,043-43,4682025-06-30
Millennium Management LLC1.247%3,424.350%701,239681,3422025-06-30
New York State Common Retirement Fund1.077%-3.094%606,036-19,3522025-06-30

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price Associates, Inc.11.739%-12.717%6,603,954-962,1392025-06-30
BlackRock Inc10.805%-10.817%6,078,430-737,2572025-06-30
Vanguard Group Inc9.025%-0.054%5,077,172-2,7222025-06-30
Point72 Asset Management, L.P.3.401%71.365%1,913,190796,7452025-06-30
State Street Corporation3.139%3.205%1,758,21254,5942024-03-31
State Street Corp2.884%-3.926%1,622,623-66,3142025-06-30
FMR Inc2.868%120.275%1,613,304880,9002025-06-30
WCM Investment Management2.877%5.420%1,601,98282,3562022-12-31
Champlain Investment Partners, LLC2.491%-4.297%1,401,088-62,9072025-06-30
Amvescap Plc.2.451%-17.638%1,379,127-295,3502025-06-30
Bank of New York Mellon Corp2.355%-1.830%1,324,778-24,6972025-06-30
Sands Capital Management, LLC2.224%-3.331%1,251,088-43,1082025-06-30
Artisan Partners Limited Partnership2.001%-26.407%1,120,626-402,1172024-03-31
Citadel Advisors Llc1.890%-20.055%1,063,056-266,6792025-06-30
Brown Capital Management, LLC1.787%16.347%1,005,276141,2412025-06-30
Geode Capital Management, LLC1.743%-1.091%980,744-10,8202025-06-30
Conestoga Capital Advisors, LLC1.737%-0.341%976,907-3,3402025-06-30
Holocene Advisors, LP1.665%-2.413%936,814-23,1682025-06-30
Harding Loevner L.P.1.635%44.735%916,142283,1632024-09-30
Macquarie Group Ltd1.618%-17.264%909,999-189,8772025-03-31
AllianceBernstein L.P.1.611%-11.501%906,393-117,7872025-06-30
FMR Inc USD1.434%-44.402%803,269-641,5192024-09-30
Wellington Management Company LLP1.399%-29.277%784,065-324,5762024-06-30
Dimensional Fund Advisors, Inc.1.365%7.617%768,00554,3552025-06-30
Impax Asset Management Group PLC1.353%-5.403%761,043-43,4682025-06-30
JPMorgan Chase & Co1.298%87.856%726,998340,0002024-09-30
Franklin Resources Inc1.267%-30.481%707,437-310,1742023-06-30
Millennium Management LLC1.247%3,424.350%701,239681,3422025-06-30
Ameriprise Financial Inc1.218%-26.273%684,988-244,1022025-03-31
ING Investment Management LLC1.164%15.878%652,16389,3602024-06-30
William Blair Investment Management, LLC1.134%-29.894%634,990-270,7702024-03-31
New York State Common Retirement Fund1.077%-3.094%606,036-19,3522025-06-30
Thrivent Financial For Lutherans1.077%-5.243%605,120-33,4822024-12-31
Morgan Stanley - Brokerage Accounts1.065%-48.186%596,497-554,7372024-09-30
Fred Alger Management, LLC1.062%42.449%591,488176,2592023-03-31
DF Dent & Co Inc1.054%30.977%590,321139,6152024-09-30
12 West Capital Management LP1.026%-14.451%571,145-96,4762023-03-31
Allspring Global Investments Holdings, LLC0.987%-10.126%548,050-61,7502022-06-30
Stephens Inv Mgmt Group LLC0.977%-4.508%542,598-25,6172022-09-30

Mutual Fund Ownership

iShares Core S&P Mid-Cap ETF is the biggest individual fund holder of Repligen Corporation (RGEN), owning a total of 1.7 million shares. Combined, the top 62 mutual fund holders of RGEN own 72.27% of the company with a total of 40.5 million shares.

In the latest ownership report on August 31st 2025, the top 62 fund holders increased their combined ownership of RGEN by 3 thousand shares. 1 funds bought 3,880 total additional shares and increased their ownership by an average of 0.56%. However 1 funds sold 1,200 total shares and decreased their ownership by an average of 0.27%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Repligen Corporation increased by a net total of 2,680 in the latest report.

Mutual Funds Chart

Your browser does not support this chart.

Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
iShares Core S&P Mid-Cap ETF3.023%0.000%1,700,75102025-08-31
Champlain Mid Cap Fund, LLC1.243%0.558%699,5303,8802025-08-31
Champlain Small Company Fund, LLC0.797%-0.267%448,087-1,2002025-08-31

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
iShares Core S&P Mid-Cap ETF3.023%0.000%1,700,75102025-08-31
Vanguard US Total Market Shares ETF2.992%0.079%1,680,1531,3212024-09-30
Vanguard Total Stock Mkt Idx Inv2.983%-2.067%1,677,920-35,4102025-07-31
Sapphire Star Capital Small Cap Growth2.941%1,561,840.000%1,640,0401,639,9352023-06-30
Vanguard Instl Ttl Stck Mkt Idx Tr2.930%-3.073%1,636,067-51,8632023-03-31
Sapphire Star Capital Mid Cap Growth2.878%177,804.000%1,604,6941,603,7922023-06-30
Sands Global Growth Eqty2.653%-0.315%1,477,314-4,6632023-03-31
Vanguard Small Cap Index2.303%-0.659%1,295,507-8,5902025-07-31
US Small-Cap Growth II Equity Comp2.188%-6.424%1,230,841-84,4932025-06-30
T. Rowe Price New Horizons2.184%-0.168%1,228,773-2,0682025-07-31
Sands Capital Global Growth Equity2.022%-3.486%1,137,349-41,0822025-06-30
Delaware Ivy Mid Cap Growth A1.376%-4.309%770,944-34,7142024-10-31
Vanguard Small Cap Growth Index Inv1.298%-0.156%730,274-1,1422025-07-31
Vanguard Extended Market Index Investor1.299%0.261%724,3171,8822023-08-31
Champlain Mid Cap Fund, LLC1.243%0.558%699,5303,8802025-08-31
Franklin DynaTech A1.192%-26.271%663,563-236,4372023-06-30
Franklin DynaTech Fund A1.190%-26.271%663,563-236,4372023-06-30
Franklin Innovation Composite1.190%-30.151%663,563-286,4372023-06-30
BlackRock Mid-Cap Growth Equity Instl1.139%0.000%639,63602025-03-31
T. Rowe Price All-Cap Opportunities Fund1.132%9.395%636,95554,7002025-07-31
T. Rowe Price US All-Cap Opp Eq Comp1.035%0.000%582,25502025-06-30
T. Rowe Price US All-Cap Opp Eq SMA1.039%54.299%582,255204,9002024-12-31
Vanguard Institutional Extnd Mkt Idx Tr0.999%-30.251%561,945-243,7272025-07-31
Macquarie Mid Cap Growth A0.983%0.000%552,49902025-05-31
Fidelity® Select Medical Tech and Devcs0.986%-21.429%550,000-150,0002023-06-30
T. Rowe Price New Horizons Tr-Z0.927%20.067%519,06286,7522024-06-30
Brown Capital Mgmt Small Co Inv0.897%-3.161%502,270-16,3952024-06-30
Fidelity Select Medical Tech and Devcs0.862%34.722%485,000125,0002025-07-31
Conestoga Small Cap Investors0.856%0.000%481,76002025-07-31
T. Rowe Price Glb Focused Growth Equity0.854%-32.222%480,409-228,3882025-06-30
T. Rowe Price Global Stock0.854%-14.868%480,409-83,9002025-06-30
Fidelity® Select Health Care0.807%-13.462%450,000-70,0002023-06-30
Champlain Small Company Fund, LLC0.797%-0.267%448,087-1,2002025-08-31
Invesco Discovery Mid Cap Growth Y0.769%-14.389%427,210-71,8032022-12-31
Invesco Mid Cap Growth0.768%-25.327%427,210-144,8972022-12-31
T. Rowe Price Glb Foc Gr Eq A USD0.747%7.015%419,50227,5002025-04-30
T. Rowe Price Global Fcs Gr Eq A0.747%7.015%419,50227,5002025-04-30
Artisan Mid Cap Investor0.747%-0.668%417,224-2,8062023-12-31
Artisan U.S. Mid-Cap Growth0.747%-0.668%417,224-2,8062023-12-31
Hartford MidCap Y0.743%-14.411%414,853-69,8482023-10-31
Alger Small Cap Focus Composite0.738%0.000%411,66802023-05-31
Alger Small Cap Focus I0.738%0.000%411,66802023-05-31
Invesco Discovery A0.736%0.000%408,58002022-10-31
BNP Paribas Climate Impact Privl C0.719%-0.788%402,454-3,1982024-08-31
SPDR® S&P MIDCAP 400 ETF Trust0.711%-2.438%400,239-10,0022025-07-31
Delaware Ivy Science and Technology C0.716%0.000%397,71002022-03-31
Impax Climate Strategy0.705%-10.883%395,621-48,3112024-12-31
T. Rowe Price New Horizons Tr-A0.701%6.235%394,20423,1362025-06-30
BNP Paribas Climate Change Privl C0.701%0.642%392,8992,5062024-11-30
Eagle Mid-Cap Growth - Institutional0.707%47.886%392,617127,1302022-12-31
Impax Specialists Strategy Composite0.691%-0.979%388,952-3,8462025-07-31
iShares Biotechnology ETF0.680%0.193%380,6587322024-09-30
Franklin US Small-Mid Cap Growth Equity0.674%0.000%378,933378,9332025-06-30
Champlain Mid Cap Adv0.668%7.143%375,00025,0002024-12-31
T. Rowe Price Health Sciences0.659%-0.591%370,690-2,2032025-06-30
Columbia Acorn Inst0.641%0.000%359,11302024-06-30
Invesco OFI Small Cap Growth0.630%198.840%354,116235,6192025-03-31
iShares S&P Mid-Cap 400 Growth ETF0.632%0.140%353,0294922024-06-28
State St Russell Sm/Mid Cp® Indx NL Cl C0.630%0.000%352,54502024-07-31
Sands Capital Global Growth A USD Acc0.629%-0.991%351,438-3,5172024-03-31
Fidelity Select Health Care0.622%60.551%350,000132,0002025-07-31
Parnassus Mid-Cap0.620%0.000%346,39902024-04-30

Discussions

Please log in or register to share your thoughts.

substancetag5/22/25 11:32pm

$RGEN what calls are you guys jacked to the tits on?

0 Like Report
kairaae3/10/25 07:02am

$RGEN the market is selling off

0 Like Report
bulls_only12/12/24 01:22am

$RGEN Come on.. Let it fall.. buy later bulls

0 Like Report
StocksOverBTC1110/12/24 05:22pm

$RGEN one of the poorest performed stocks for a big name.

0 Like Report
leahmccourt7/19/24 05:22pm

$RGEN where’s the WSB guys at? Still sleeping?

0 Like Report