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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
Retirement Systems of Alabama64,868$7.64M0.03%+1,363+2.1%Added
California State Teachers Retirement System61,860$7.29M0.01%+11,206+22.1%Added
Agf Management Ltd60,185$7.09M0.03%−51,427−46.1%Reduced
Russell Investments Group, Ltd.58,203$6.86M0.01%−677−1.1%Reduced
TD Asset Management Inc57,616$6.79M0.01%+1,860+3.3%Added
Cornerstone Advisors, LLC56,690$6.68M0.25%00.0%Unchanged
STRS Ohio54,760$6.45M0.03%+4,498+8.9%Added
Roubaix Capital, LLC54,555$6.43M3.00%+54,555New
Kelly Lawrence W & Associates Inc54,470$6.42M1.78%+13,370+32.5%Added
Pier Capital, LLC53,119$6.26M1.03%−1,028−1.9%Reduced
Public Employees Retirement System of Ohio52,811$6.22M0.02%+7,649+16.9%Added
Manufacturers Life Insurance Company, The49,940$5.88M0.01%−7,162−12.5%Reduced
New York State Teachers Retirement System49,318$5.81M0.01%−1,714−3.4%Reduced
State Board of Administration of Florida Retirement System48,995$5.77M0.01%−248−0.5%Reduced
Stephens Inc48,376$5.70M0.07%+1,390+3.0%Added
Vanguard Asset Management, Ltd48,353$5.70M0.00%+48,353New
Braidwell LP47,500$5.60M0.19%−34,290−41.9%Reduced
Campbell & CO Investment Adviser LLC46,674$5.50M0.31%+46,674New
Amundi44,959$5.30M0.00%+2,925+7.0%Added
Slow Capital, Inc.43,546$5.13M0.67%+1,946+4.7%Added
Generate Investment Management Ltd41,521$4.89M0.24%+41,521New
ExodusPoint Capital Management, LP40,228$4.74M0.05%+40,228New
Sone Capital Management, LLC39,340$4.64M0.39%+11,222+39.9%Added
Susquehanna International Group, LLP39,176$4.62M0.01%+36,237+1,233.0%Added
Citigroup Inc36,356$4.28M0.00%−47,396−56.6%Reduced
Wells Fargo & Company35,905$4.23M0.00%−564−1.5%Reduced
LPL Financial LLC35,774$4.21M0.00%−938−2.6%Reduced
Oppenheimer Asset Management Inc.35,128$4.14M0.05%+17,203+96.0%Added
Jane Street Group, LLC34,978$4.12M0.00%−1,838−5.0%Reduced
State of Wisconsin Investment Board33,655$3.97M0.01%−537−1.6%Reduced
EFG International AG33,261$3.92M0.08%−2,018−5.7%Reduced
Great West Life Assurance Co31,082$3.67M0.01%+309+1.0%Added
Warren Averett Asset Management, LLC29,742$3.50M0.03%−1,070−3.5%Reduced
Stifel Financial Corp29,540$3.48M0.00%+8,549+40.7%Added
Thornburg Investment Management Inc29,401$3.46M0.04%−17,087−36.8%Reduced
Gotham Asset Management, LLC28,749$3.39M0.01%−21,782−43.1%Reduced
E. Ohman J:or Asset Management AB28,600$3.37M0.09%−5,089−15.1%Reduced
Natixis Advisors, L.P.28,233$3.33M0.00%−1,038−3.5%Reduced
Covea Finance28,000$3.30M0.12%00.0%Unchanged
Caption Management, LLC27,500$3.24M0.15%+27,500New
Neuberger Berman Group LLC27,366$3.22M0.00%−15,025−35.4%Reduced
Taproot Management LP27,125$3.20M0.60%−5,163−16.0%Reduced
XTX Topco Ltd26,527$3.13M0.05%+21,379+415.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)26,381$3.11M0.01%+4,289+19.4%Added
MetLife Investment Management26,320$3.10M0.02%+154+0.6%Added
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management25,500$3.00M0.21%+25,500New
Mutual of America Capital Management LLC24,877$2.93M0.03%−1,745−6.6%Reduced
Jones Financial Companies LLLP26,144$2.88M0.00%+23,341+832.7%Added
Janus Henderson Group PLC24,316$2.87M0.00%00.0%Unchanged
Amalgamated Bank23,985$2.83M0.02%+336+1.4%Added
Bank of Montreal23,667$2.79M0.00%+5,207+28.2%Added
State of Tennessee, Treasury Department23,158$2.73M0.01%00.0%Unchanged
Treasurer of the State of North Carolina22,552$2.66M0.01%+476+2.2%Added
Millennium Management LLC22,461$2.65M0.00%−628,085−96.5%Reduced
Police & Firemen's Retirement System of New Jersey22,249$2.62M0.02%00.0%Unchanged
Bank of Nova Scotia22,017$2.59M0.00%−22,460−50.5%Reduced
Vanguard Global Advisers, LLC21,613$2.55M0.00%+21,613New
Delta Investment Management, LLC21,164$2.49M0.45%−2,380−10.1%Reduced
Krilogy Financial LLC19,557$2.49M0.08%+8,801+81.8%Added
Pathstone Holdings, LLC21,046$2.48M0.01%−3,228−13.3%Reduced
Rice Hall James & Associates, LLC20,151$2.37M0.13%−393−1.9%Reduced
Handelsbanken Fonder AB19,738$2.33M0.01%+1,019+5.4%Added
HSBC Holdings PLC19,772$2.31M0.00%+17,679+844.7%Added
Boothbay Fund Management, LLC19,198$2.26M0.05%+19,198New
State of New Jersey Common Pension Fund D19,107$2.25M0.01%+272+1.4%Added
Johnson Investment Counsel Inc18,979$2.24M0.02%+492+2.7%Added
US Bancorp18,869$2.22M0.00%+4,665+32.8%Added
Ameritas Investment Partners, Inc.18,498$2.18M0.07%+3,791+25.8%Added
Cinctive Capital Management LP18,334$2.16M0.14%+10,696+140.0%Added
Commonwealth Equity Services, LLC18,187$2.14M0.00%+12,044+196.1%Added
B. Metzler seel. Sohn & Co. AG17,253$2.03M0.02%+9,280+116.4%Added
Intech Investment Management LLC16,673$1.96M0.02%+13,048+359.9%Added
Legato Capital Management LLC16,500$1.94M0.18%−3,655−18.1%Reduced
Louisiana State Employees Retirement System15,300$1.80M0.03%+700+4.8%Added
Arizona State Retirement System14,688$1.73M0.01%−175−1.2%Reduced
Mirae Asset Global Investments Co., Ltd.14,565$1.72M0.00%−486−3.2%Reduced
Commerce Bank14,110$1.66M0.01%+12,345+699.4%Added
Twinbeech Capital LP13,500$1.59M0.16%+13,500New
Yousif Capital Management, LLC13,331$1.57M0.02%−887−6.2%Reduced
Vanguard Investments Australia, Ltd.13,330$1.57M0.00%+13,330New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys13,258$1.56M0.01%+17+0.1%Added
Diversify Wealth Management, LLC13,616$1.54M0.03%+4,933+56.8%Added
State of Michigan Retirement System12,753$1.50M0.01%+200+1.6%Added
KLP Kapitalforvaltning AS11,900$1.40M0.01%+500+4.4%Added
Quantinno Capital Management LP11,888$1.40M0.00%+611+5.4%Added
Northwestern Mutual Investment Management Company, LLC11,854$1.40M0.02%+15+0.1%Added
Erste Asset Management GmbH12,500$1.39M0.01%00.0%Unchanged
Deutsche Bank AG11,618$1.37M0.00%+1,455+14.3%Added
Summit Trail Advisors, LLC11,473$1.35M0.02%+3,811+49.7%Added
Westpac Banking Corp11,410$1.34M0.09%−884−7.2%Reduced
Allstate Corp11,332$1.34M0.01%+11,332New
Universal- Beteiligungs- und Servicegesellschaft mbH11,035$1.32M0.00%−10,796−49.5%Reduced
Man Group plc11,180$1.32M0.00%+11,180New
Captrust Financial Advisors10,921$1.29M0.00%+1,554+16.6%Added
Oregon Public Employees Retirement Fund10,841$1.28M0.02%+300+2.8%Added
Zions Bancorporation, National Association10,800$1.27M0.08%−1,895−14.9%Reduced
Gibbs Wealth Management10,713$1.26M0.17%+5,353+99.9%Added
New Mexico Educational Retirement Board10,600$1.25M0.04%00.0%Unchanged
Diversified Trust Co10,151$1.20M0.02%−3,181−23.9%Reduced
Cetera Investment Advisers9,437$1.11M0.00%+941+11.1%Added