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Repligen Corp

RGEN
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0000730272

In the last 90 days, Repligen Corp insiders filed 0 open-market purchases and 5 sales; 481 institutions reported holding it in 13F filings for Q2 2026, worth $9.00B in total; 3 superinvestors hold it, including Maverick Capital and Duquesne Family Office.

13F holders, Q1 2026

Institutional positions in Repligen Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
445
−22 vs. Q4 2025
Shares held
65.4M
+8.91M (+15.8%) vs. Q4 2025
Total value
$7.75B
−$1.52B (−16.4%) vs. Q4 2025
New holders
69
166 more added
Sold out
91
131 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting RGEN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 445 institutions
Q1 2021: 459 institutionsQ2 2021: 430 institutionsQ3 2021: 481 institutionsQ4 2021: 508 institutionsQ1 2022: 450 institutionsQ2 2022: 406 institutionsQ3 2022: 434 institutionsQ4 2022: 443 institutionsQ1 2023: 448 institutionsQ2 2023: 448 institutionsQ3 2023: 440 institutionsQ4 2023: 467 institutionsQ1 2024: 487 institutionsQ2 2024: 455 institutionsQ3 2024: 445 institutionsQ4 2024: 431 institutionsQ1 2025: 441 institutionsQ2 2025: 446 institutionsQ3 2025: 453 institutionsQ4 2025: 475 institutionsQ1 2026: 445 institutionsQ2 2026: 481 institutions
Value heldQ1 2026: $7.75B
Q1 2021: $8.88BQ2 2021: $9.28BQ3 2021: $13.6BQ4 2021: $12.5BQ1 2022: $9.15BQ2 2022: $8.17BQ3 2022: $9.56BQ4 2022: $9.06BQ1 2023: $9.06BQ2 2023: $7.74BQ3 2023: $9.08BQ4 2023: $10.4BQ1 2024: $10.3BQ2 2024: $7.06BQ3 2024: $8.25BQ4 2024: $8.09BQ1 2025: $7.33BQ2 2025: $7.22BQ3 2025: $8.00BQ4 2025: $10.2BQ1 2026: $7.75BQ2 2026: $9.00B
Institutions holding RGEN and their total value by quarter
QuarterHoldersValue
Q2 2026481$9.00B
Q1 2026445$7.75B
Q4 2025475$10.2B
Q3 2025453$8.00B
Q2 2025446$7.22B
Q1 2025441$7.33B
Q4 2024431$8.09B
Q3 2024445$8.25B
Q2 2024455$7.06B
Q1 2024487$10.3B
Q4 2023467$10.4B
Q3 2023440$9.08B
Q2 2023448$7.74B
Q1 2023448$9.06B
Q4 2022443$9.06B
Q3 2022434$9.56B
Q2 2022406$8.17B
Q1 2022450$9.15B
Q4 2021508$12.5B
Q3 2021481$13.6B
Q2 2021430$9.28B
Q1 2021459$8.88B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Repligen Corp; share changes are against Q4 2025.

Institutions holding RGEN in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.5,993,054$706.1M0.01%−626,217−9.5%Reduced
Price T Rowe Associates Inc4,878,141$574.7M0.07%+279,080+6.1%Added
FMR LLC2,886,786$340.1M0.02%+18,940+0.7%Added
United Capital Financial Advisers, LLC2,773,980$326.8M2.02%+3,118+0.1%Added
Vanguard Capital Management LLC2,396,511$282.4M0.01%+2,396,511New
Vanguard Portfolio Management LLC2,305,094$271.6M0.01%+2,305,094New
State Street Corp1,777,285$209.4M0.01%+58,192+3.4%Added
Bank of New York Mellon Corp1,531,402$180.4M0.03%+186,696+13.9%Added
Maverick Capital LtdSuperinvestorMaverick Capital1,518,805$178.9M2.08%+1,518,805New
Massachusetts Financial Services Co1,397,515$164.7M0.06%+181,988+15.0%Added
T. Rowe Price Investment Management, Inc.1,366,680$161.0M0.11%+720,558+111.5%Added
Invesco Ltd.1,278,255$150.6M0.01%+21,816+1.7%Added
Wasatch Advisors Inc1,243,531$146.5M0.97%+1,243,531New
RTW Investments, LP1,206,000$142.1M1.41%+142,000+13.3%Added
Franklin Resources Inc1,193,139$140.6M0.03%+91,692+8.3%Added
Alliancebernstein L.P.831,792$136.3M0.04%−163,077−16.4%Reduced
Citadel Advisors LLC1,099,181$129.5M0.09%−295,071−21.2%Reduced
Conestoga Capital Advisors, LLC1,097,783$129.3M2.58%+39,808+3.8%Added
Geode Capital Management, LLC1,064,457$125.4M0.01%+34,640+3.4%Added
Ameriprise Financial Inc925,214$109.0M0.03%+430,989+87.2%Added
Vestal Point Capital, LP925,000$109.0M3.05%+842,000+1,014.5%Added
Dimensional Fund Advisors LP854,741$100.7M0.02%+50,331+6.3%Added
Congress Asset Management Co797,867$94.0M0.67%+51,561+6.9%Added
Stephens Investment Management Group LLC755,571$89.0M1.22%+98,460+15.0%Added
Holocene Advisors, LP708,889$83.5M0.20%−252,151−26.2%Reduced
Champlain Investment Partners, LLC693,855$81.7M1.04%−310,096−30.9%Reduced
Geneva Capital Management LLC693,738$81.7M1.74%+130,763+23.2%Added
Morgan Stanley683,789$80.6M0.00%+112,812+19.8%Added
UBS Group AG670,329$79.0M0.01%+321,941+92.4%Added
Goldman Sachs Group Inc651,347$76.7M0.01%+356,076+120.6%Added
First Trust Advisors LP630,070$74.2M0.05%+347,294+122.8%Added
Voya Investment Management LLC622,920$73.4M0.08%+101,762+19.5%Added
Point72 Asset Management, L.P.569,474$67.1M0.12%−436,836−43.4%Reduced
Bamco Inc548,346$64.6M0.20%+3,567+0.7%Added
Schroder Investment Management Group520,114$61.3M0.05%+76,180+17.2%Added
TimesSquare Capital Management, LLC456,083$53.7M0.91%+20,396+4.7%Added
Charles Schwab Investment Management Inc453,044$53.4M0.01%+22,340+5.2%Added
Northern Trust Corp444,746$52.4M0.01%−1,402−0.3%Reduced
Impax Asset Management Group plc438,468$51.7M0.36%+25,084+6.1%Added
Fred Alger Management, LLC434,774$51.2M0.23%−476,753−52.3%Reduced
Thrivent Financial for Lutherans425,389$50.1M0.10%+13,683+3.3%Added
Artemis Investment Management LLP421,788$49.7M0.53%+11,419+2.8%Added
Blue Whale Capital LLP404,200$47.6M2.26%+95,733+31.0%Added
Bank of America Corp378,205$44.6M0.00%−19,024−4.8%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.377,009$44.4M0.05%+53,188+16.4%Added
DF Dent & Co Inc365,115$43.0M0.82%−130,435−26.3%Reduced
American Capital Management Inc357,720$42.1M2.26%+22,605+6.7%Added
Vanguard Fiduciary Trust Co330,767$39.0M0.01%+330,767New
Allspring Global Investments Holdings, LLC280,523$33.2M0.06%−30,652−9.9%Reduced
Perceptive Advisors LLC280,541$33.1M0.65%−35,000−11.1%Reduced
SEI Investments Co272,103$32.1M0.03%+90,115+49.5%Added
Riverbridge Partners LLC258,476$30.5M0.75%−54,889−17.5%Reduced
LMR Partners LLP253,060$29.8M0.27%+253,060New
Palisade Capital Management LLC240,619$28.3M0.94%+8,423+3.6%Added
Daiwa Securities Group Inc.239,852$28.3M0.08%+109,575+84.1%Added
American Century Companies Inc235,365$27.7M0.01%−14,908−6.0%Reduced
Primecap Management Co235,068$27.7M0.02%+48,400+25.9%Added
NZS Capital, LLC203,225$23.9M0.80%+4,422+2.2%Added
Barclays PLC194,016$22.9M0.01%+34,864+21.9%Added
12 West Capital Management LP191,233$22.5M3.80%−50,000−20.7%Reduced
Artisan Partners Limited Partnership190,100$22.4M0.04%−3,597−1.9%Reduced
Nomura Asset Management International Inc.181,380$21.4M0.04%−23,483−11.5%Reduced
BNP Paribas Arbitrage, SA177,517$20.9M0.01%+103,475+139.8%Added
New York State Common Retirement Fund176,328$20.8M0.03%+5,318+3.1%Added
Baird Financial Group, Inc.171,630$20.2M0.03%−33,975−16.5%Reduced
Brown Capital Management LLC169,996$20.0M2.85%−103,976−38.0%Reduced
Raymond James Financial Inc168,862$19.4M0.01%−120.0%Reduced
UBS Asset Management Americas Inc163,748$19.3M0.00%−606−0.4%Reduced
Ranger Investment Management, L.P.161,135$19.0M1.37%−1,315−0.8%Reduced
Fifth Third Bancorp161,070$19.0M0.03%+157,298+4,170.1%Added
Principal Financial Group Inc159,745$18.8M0.01%−38,459−19.4%Reduced
Segall Bryant & Hamill, LLC155,025$18.3M0.26%+8,045+5.5%Added
Loomis Sayles & Co L P152,585$18.0M0.02%+2,808+1.9%Added
Royal Bank of Canada149,903$17.7M0.00%+6,577+4.6%Added
Rhumbline Advisers136,329$16.1M0.01%+2,219+1.7%Added
Public Employees Retirement Association of Colorado134,571$15.9M0.06%00.0%Unchanged
Envestnet Asset Management Inc127,964$15.1M0.00%+26,852+26.6%Added
Balyasny Asset Management LLC125,469$14.8M0.03%+10,416+9.1%Added
JPMorgan Chase & Co128,221$14.3M0.00%−120,716−48.5%Reduced
Jennison Associates LLC121,239$14.3M0.01%−2,361−1.9%Reduced
Eversept Partners, LP120,785$14.2M0.94%+120,785New
RMB Capital Management, LLC118,654$14.0M0.25%+718+0.6%Added
Royce & Associates LP115,932$13.7M0.13%−31,041−21.1%Reduced
Swiss National Bank105,800$12.5M0.01%+400+0.4%Added
Nuveen, LLC104,991$12.4M0.00%−87,697−45.5%Reduced
Teachers Retirement System of the State of Kentucky100,045$11.8M0.09%−1,900−1.9%Reduced
Victory Capital Management Inc99,726$11.7M0.01%−9,355−8.6%Reduced
Hudson Bay Capital Management LP92,500$10.9M0.07%+72,500+362.5%Added
Osterweis Capital Management Inc92,220$10.9M0.56%+37,585+68.8%Added
Lord, Abbett & Co. LLC88,367$10.4M0.03%−1,877−2.1%Reduced
Granahan Investment Management Inc86,953$10.2M0.50%+14,951+20.8%Added
Advisor Group Holdings, Inc.86,187$10.2M0.01%−3,791−4.2%Reduced
Silvercrest Asset Management Group LLC85,107$10.0M0.07%+81,982+2,623.4%Added
North Star Asset Management Inc83,963$9.89M0.43%−940−1.1%Reduced
Avidity Partners Management LP77,800$9.17M1.86%+27,500+54.7%Added
Ensign Peak Advisors, Inc76,020$8.96M0.02%−25,189−24.9%Reduced
Legal & General Group Plc70,885$8.35M0.00%−7,918−10.0%Reduced
Standard Life Aberdeen plc70,495$8.31M0.01%+16,165+29.8%Added
Kornitzer Capital Management Inc70,080$8.26M0.18%−13,700−16.4%Reduced
California Public Employees Retirement System66,759$7.87M0.00%−3,356−4.8%Reduced