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Regeneron Pharmaceuticals, Inc.

REGN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0000872589

In the last 90 days, Regeneron Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 1,342 institutions reported holding it in 13F filings for Q2 2026, worth $57.1B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.

13F holders, Q2 2025

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Jun 30, 2025. 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
1,201
−73 vs. Q1 2025
Shares held
89.3M
−3.67M (−4.0%) vs. Q1 2025
Total value
$46.9B
−$12.0B (−20.4%) vs. Q1 2025
New holders
134
443 more added
Sold out
207
475 more reduced

16 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting REGN 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 holdersQ2 2025: 1,201 institutions
Q1 2021: 926 institutionsQ2 2021: 975 institutionsQ3 2021: 1,022 institutionsQ4 2021: 1,081 institutionsQ1 2022: 1,097 institutionsQ2 2022: 1,066 institutionsQ3 2022: 1,081 institutionsQ4 2022: 1,161 institutionsQ1 2023: 1,196 institutionsQ2 2023: 1,168 institutionsQ3 2023: 1,180 institutionsQ4 2023: 1,274 institutionsQ1 2024: 1,313 institutionsQ2 2024: 1,335 institutionsQ3 2024: 1,393 institutionsQ4 2024: 1,320 institutionsQ1 2025: 1,290 institutionsQ2 2025: 1,201 institutionsQ3 2025: 1,243 institutionsQ4 2025: 1,387 institutionsQ1 2026: 1,401 institutionsQ2 2026: 1,342 institutions
Value heldQ2 2025: $46.9B
Q1 2021: $42.3BQ2 2021: $49.6BQ3 2021: $54.5BQ4 2021: $56.9BQ1 2022: $64.5BQ2 2022: $55.0BQ3 2022: $64.0BQ4 2022: $66.9BQ1 2023: $76.1BQ2 2023: $66.2BQ3 2023: $75.1BQ4 2023: $80.3BQ1 2024: $89.3BQ2 2024: $98.9BQ3 2024: $97.5BQ4 2024: $66.6BQ1 2025: $59.0BQ2 2025: $46.9BQ3 2025: $49.0BQ4 2025: $70.7BQ1 2026: $69.8BQ2 2026: $57.1B
Institutions holding REGN and their total value by quarter
QuarterHoldersValue
Q2 20261,342$57.1B
Q1 20261,401$69.8B
Q4 20251,387$70.7B
Q3 20251,243$49.0B
Q2 20251,201$46.9B
Q1 20251,290$59.0B
Q4 20241,320$66.6B
Q3 20241,393$97.5B
Q2 20241,335$98.9B
Q1 20241,313$89.3B
Q4 20231,274$80.3B
Q3 20231,180$75.1B
Q2 20231,168$66.2B
Q1 20231,196$76.1B
Q4 20221,161$66.9B
Q3 20221,081$64.0B
Q2 20221,066$55.0B
Q1 20221,097$64.5B
Q4 20211,081$56.9B
Q3 20211,022$54.5B
Q2 2021975$49.6B
Q1 2021926$42.3B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q1 2025.

Institutions holding REGN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Horizon Investments, LLC13,242$6.95M0.11%+11,608+710.4%Added
Eversept Partners, LP13,254$6.96M0.70%+13,254New
Toroso Investments, LLC13,280$6.97M0.05%+2,756+26.2%Added
Louisiana State Employees Retirement System13,300$6.98M0.13%−300−2.2%Reduced
Dillon & Associates Inc13,344$7.01M0.95%−392−2.9%Reduced
Westwood Holdings Group Inc.13,556$7.12M0.05%+1,974+17.0%Added
M&G Plc13,575$7.13M0.04%+20.0%Added
Fagan Associates, Inc.13,840$7.27M1.12%+714+5.4%Added
Cerity Partners LLC13,858$7.28M0.01%−2,162−13.5%Reduced
Prospera Financial Services Inc14,133$7.42M0.14%+10,320+270.7%Added
Sumitomo Mitsui DS Asset Management Company, Ltd14,266$7.49M0.07%−3,075−17.7%Reduced
Public Employees Retirement Association of Colorado14,282$7.50M0.03%−62−0.4%Reduced
Baader Bank INC14,289$7.50M0.65%+14,289New
New York Life Investment Management LLC14,353$7.54M0.07%+113+0.8%Added
The PNC Financial Services Group, Inc.14,715$7.73M0.00%−1,247−7.8%Reduced
Ilmarinen Mutual Pension Insurance Co14,900$7.82M0.06%00.0%Unchanged
Comerica Bank14,907$7.83M0.03%−69−0.5%Reduced
Scion Asset Management, LLC15,000$7.88M14.00%+15,000New
Ossiam15,160$7.96M0.09%−22,234−59.5%Reduced
XTX Topco Ltd15,305$8.04M0.33%+11,667+320.7%Added
MML Investors Services, LLC15,379$8.07M0.02%+7,033+84.3%Added
First Horizon Advisors, Inc.15,417$8.09M0.21%+103+0.7%Added
Quantinno Capital Management LP15,609$8.19M0.04%+5,513+54.6%Added
Xponance, Inc.15,865$8.33M0.07%−402−2.5%Reduced
Police & Firemen's Retirement System of New Jersey15,877$8.34M0.08%+651+4.3%Added
SG Americas Securities, LLC16,032$8.42M0.04%−48,031−75.0%Reduced
Klingenstein Fields & Co LP16,099$8.45M0.33%+9,155+131.8%Added
Greenwich Wealth Management LLC16,154$8.48M0.41%+14+0.1%Added
Ethic Inc.16,847$8.78M0.16%+9,766+137.9%Added
British Columbia Investment Management Corp16,829$8.84M0.05%−3,840−18.6%Reduced
North Point Portfolio Managers Corp16,877$8.86M1.52%−357−2.1%Reduced
CI Private Wealth, LLC17,198$9.03M0.01%−4,688−21.4%Reduced
Utah Retirement Systems17,202$9.03M0.09%−120−0.7%Reduced
AIA Group Ltd17,257$9.06M0.20%+1,164+7.2%Added
Commonwealth Equity Services, LLC17,755$9.32M0.01%−664−3.6%Reduced
IMC-Chicago, LLC17,952$9.42M0.24%+17,952New
Varma Mutual Pension Insurance Co18,188$9.55M0.07%+1,300+7.7%Added
Shelton Capital Management18,242$9.58M0.22%−236−1.3%Reduced
USS Investment Management Ltd18,280$9.59M0.06%+78+0.4%Added
Advisor Group Holdings, Inc.17,068$9.61M0.02%+6,073+55.2%Added
Solas Capital Management, LLC18,594$9.76M5.46%+18,594New
Voleon Capital Management LP18,663$9.80M0.54%+17,419+1,400.2%Added
PKO Investment Management Joint-Stock Co18,800$9.87M1.06%+3,500+22.9%Added
Private Advisor Group, LLC19,191$10.1M0.05%+4,915+34.4%Added
iA Global Asset Management Inc.19,240$10.1M0.15%+60.0%Added
Raiffeisen Bank International AG19,560$10.2M0.15%−540−2.7%Reduced
Wolverine Trading, LLC19,578$10.2M0.26%+4,588+30.6%Added
Beacon Pointe Advisors, LLC19,467$10.2M0.11%−48−0.2%Reduced
Banco Santander, S.A.19,558$10.3M0.10%+7,706+65.0%Added
Adams Diversified Equity Fund, Inc.19,700$10.3M0.37%00.0%Unchanged
One Capital Management, LLC19,720$10.4M0.36%+4,897+33.0%Added
State of Alaska, Department of Revenue19,965$10.5M0.11%+2,640+15.2%Added
Amalgamated Bank20,063$10.5M0.08%−557−2.7%Reduced
Massachusetts Financial Services Co20,202$10.6M0.00%−761−3.6%Reduced
DDD Partners, LLC20,496$10.8M1.15%+20,496New
Univest Financial Corp20,546$10.8M0.65%+2,127+11.5%Added
HRT Financial LP20,624$10.8M0.05%−2,875−12.2%Reduced
Nisa Investment Advisors, LLC20,751$10.9M0.05%−26,595−56.2%Reduced
CIBC World Markets Corp20,752$10.9M0.07%+7,932+61.9%Added
ARS Investment Partners, LLC20,855$10.9M0.80%+14,378+222.0%Added
Forsta Ap-Fonden21,100$11.1M0.07%+300+1.4%Added
IFM Investors Pty Ltd21,297$11.2M0.11%+49+0.2%Added
GW Henssler & Associates Ltd21,482$11.3M0.60%+1,122+5.5%Added
Verition Fund Management LLC21,802$11.4M0.07%+1,678+8.3%Added
Mariner, LLC21,815$11.5M0.02%+9,174+72.6%Added
Schroder Investment Management Group22,005$11.6M0.01%−25,815−54.0%Reduced
Oppenheimer & Co Inc22,117$11.6M0.15%+3,974+21.9%Added
Schaper Benz & Wise Investment Counsel Inc22,357$11.7M0.90%+2,259+11.2%Added
Zurich Insurance Group Ltd22,651$11.9M0.09%+22,651New
Jain Global LLC22,662$11.9M0.18%+6,520+40.4%Added
Capital Group Private Client Services, Inc.22,872$12.0M0.10%−88,130−79.4%Reduced
Applied Finance Capital Management, LLC22,983$12.1M0.82%+3,190+16.1%Added
Nikko Asset Management Americas, Inc.23,314$12.2M0.12%−850−3.5%Reduced
Beacon Investment Advisory Services, Inc.23,515$12.3M0.54%−2,744−10.4%Reduced
Illinois Municipal Retirement Fund23,688$12.4M0.17%+1,851+8.5%Added
Daiwa Securities Group Inc.24,329$12.8M0.05%+761+3.2%Added
China Universal Asset Management Co., Ltd.24,537$12.9M1.21%−1,092−4.3%Reduced
Ensign Peak Advisors, Inc24,778$13.0M0.02%−18,898−43.3%Reduced
Czech National Bank25,384$13.3M0.10%+1,220+5.0%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys25,469$13.4M0.07%+1,409+5.9%Added
Bellecapital International Ltd.25,503$13.4M2.38%+6,283+32.7%Added
Factory Mutual Insurance Co25,600$13.4M0.15%+13,500+111.6%Added
Spears Abacus Advisors LLC26,461$13.9M0.28%−38,065−59.0%Reduced
MetLife Investment Management26,470$13.9M0.08%−1,227−4.4%Reduced
Bellevue Group AG26,744$14.0M0.31%−1,779−6.2%Reduced
Nissay Asset Management Corp26,956$14.2M0.08%+539+2.0%Added
Oddo BHF Asset Management SAS26,961$14.2M0.54%+2,105+8.5%Added
Gotham Asset Management, LLC27,005$14.2M0.08%−5,042−15.7%Reduced
Rhenman & Partners Asset Management AB27,700$14.5M1.84%−4,050−12.8%Reduced
Distillate Capital Partners LLC27,983$14.7M0.79%−3,481−11.1%Reduced
State of Michigan Retirement System28,221$14.8M0.08%−300−1.1%Reduced
Storebrand Asset Management AS28,326$14.9M0.04%+928+3.4%Added
Point72 Europe (London) LLP29,247$15.4M0.79%+29,247New
GF Fund Management Co. Ltd.29,306$15.4M0.31%−2,495−7.8%Reduced
Rockefeller Capital Management L.P.29,620$15.6M0.03%−37,988−56.2%Reduced
R.P. Boggs & Co.29,676$15.6M7.92%+20,006+206.9%Added
Washington Trust Advisors, Inc.29,961$15.7M1.28%+435+1.5%Added
Engineers Gate Manager LP30,029$15.8M0.20%+2,695+9.9%Added
Traynor Capital Management, Inc.29,479$15.8M1.12%+1,623+5.8%Added
Orion Investment Co30,271$15.9M5.66%−290−0.9%Reduced