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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, Q1 2026

Institutional positions in Regeneron Pharmaceuticals, Inc. 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
1,401
+38 vs. Q4 2025
Shares held
90.5M
+9.56M (+11.8%) vs. Q4 2025
Total value
$69.8B
+$7.27B (+11.6%) vs. Q4 2025
New holders
138
578 more added
Sold out
100
461 more reduced

24 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 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 holdersQ1 2026: 1,401 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 heldQ1 2026: $69.8B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2025.

Institutions holding REGN in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
International Assets Investment Management, LLC881$684.9K0.05%+8+0.9%Added
Inceptionr LLC887$685.3K0.16%+887New
Stephens Inc887$685.7K0.01%+357+67.4%Added
Procyon Private Wealth Partners, LLC889$686.9K0.03%+449+102.0%Added
New Wave Wealth Advisors LLC893$690.0K0.24%+297+49.8%Added
Level Four Advisory Services, LLC895$691.5K0.02%−57−6.0%Reduced
Mount Yale Investment Advisors, LLC895$691.5K0.02%+895New
Morse Asset Management, Inc897$693.1K0.14%+103+13.0%Added
Plancorp, LLC926$693.5K0.02%+2+0.2%Added
John G Ullman & Associates Inc910$703.1K0.09%−920−50.3%Reduced
1248 Management, LLC913$705.4K0.33%00.0%Unchanged
Callahan Advisors, LLC924$714.0K0.06%00.0%Unchanged
111 Capital929$717.8K0.18%+456+96.4%Added
BNP Paribas940$726.3K0.02%−60−6.0%Reduced
Envestnet Portfolio Solutions, Inc.943$728.2K0.00%−1,252−57.0%Reduced
Daymark Wealth Partners, LLC943$729.0K0.02%+614+186.6%Added
Simplicity Wealth,LLC947$731.5K0.04%+102+12.1%Added
King Luther Capital Management Corp948$732.5K0.00%00.0%Unchanged
V-Square Quantitative Management LLC948$732.5K0.08%+1+0.1%Added
Principal Securities, Inc.950$734.1K0.01%+98+11.5%Added
Cooper Financial Group958$740.1K0.07%−35−3.5%Reduced
Phoenix Holdings Ltd.968$747.9K0.01%+157+19.4%Added
Cigna Investments Inc968$748.0K0.12%−14−1.4%Reduced
Azzad Asset Management Inc981$757.7K0.08%+981New
Traphagen Investment Advisors LLC985$761.3K0.06%+21+2.2%Added
Athena Wealth Management, LLC990$764.6K0.63%+401+68.1%Added
Kestra Private Wealth Services, LLC993$767.1K0.01%−52−5.0%Reduced
Pflug Koory, LLC994$768.0K0.35%00.0%Unchanged
Soltis Investment Advisors LLC996$769.8K0.05%+134+15.5%Added
Alpine Fox Capital LLC1,000$772.6K0.73%00.0%Unchanged
Frank, Rimerman Advisors LLC1,002$774.2K0.05%−3−0.3%Reduced
Arcataur Capital Management LLC1,008$778.8K0.22%00.0%Unchanged
Alta Wealth Advisors LLC1,008$778.8K0.25%+8+0.8%Added
Sagespring Wealth Partners, LLC1,012$781.6K0.01%−58−5.4%Reduced
Syon Capital LLC1,021$788.9K0.04%+83+8.8%Added
Bank of Hawaii1,024$791.2K0.04%−25−2.4%Reduced
Transcend Wealth Collective, LLC1,026$792.7K0.06%+51+5.2%Added
Sagewood Asset Management LP1,028$794.3K0.25%+123+13.6%Added
Blue Chip Partners, Inc.1,029$795.0K0.06%+84+8.9%Added
Archford Capital Strategies, LLC1,038$802.0K0.09%+1,038New
Frec Markets, Inc.1,048$809.7K0.14%+554+112.1%Added
PCM Encore, LLC1,051$812.1K0.17%+41+4.1%Added
Busey Wealth Management1,054$814.4K0.02%−106−9.1%Reduced
Jackson Thornton Asset Management, LLC1,091$817.0K0.07%+101+10.2%Added
Baker Avenue Asset Management, LP1,061$819.5K0.02%+678+177.0%Added
Umb Bank N A1,062$820.5K0.01%+2+0.2%Added
Ostrum Asset Management1,065$822.9K0.05%−3,221−75.2%Reduced
Fiduciary Family Office, LLC1,074$829.8K0.24%+94+9.6%Added
Central Trust Co1,075$830.6K0.02%+324+43.1%Added
Cullen/Frost Bankers, Inc.1,077$832.2K0.01%+647+150.5%Added
waypoint wealth counsel1,085$838.3K0.43%+3+0.3%Added
Boyd Watterson Asset Management LLC1,087$839.9K0.26%+15+1.4%Added
Independent Financial Group, LLC1,090$842.2K0.02%−97−8.2%Reduced
Fairvoy Private Wealth, LLC1,092$843.7K0.20%+1,092New
Magnetar Financial LLC1,130$846.7K0.01%+1,130New
Schwartz Investment Counsel Inc1,100$849.9K0.03%00.0%Unchanged
Oak Asset Management, LLC1,100$849.9K0.29%00.0%Unchanged
Encore Global Management, LP1,100$849.9K0.59%+1,100New
Pitcairn Wealth Advisors LLC1,102$850.6K0.08%00.0%Unchanged
Aaron Wealth Advisors1,102$851.4K0.05%+16+1.5%Added
Parallel Advisors, LLC1,107$855.9K0.02%+112+11.3%Added
Kinneret Advisory, LLC1,116$862.3K0.08%−50−4.3%Reduced
Icon Wealth Advisors, LLC1,259$864.3K0.06%−65−4.9%Reduced
Journey Retirement Planning & Investment Management LLC1,129$873.0K0.77%−3,211−74.0%Reduced
Tectonic Advisors LLC1,132$874.9K0.05%−11−1.0%Reduced
Clearstead Advisors, LLC1,134$876.5K0.01%+26+2.3%Added
Two Sigma Securities, LLC1,135$876.9K0.10%+1,135New
Keynote Financial Services LLC1,138$879.3K0.47%+2+0.2%Added
Evoke Wealth, LLC1,150$888.6K0.02%+340+42.0%Added
Harbor Capital Advisors, Inc.1,153$891.0K0.07%−429−27.1%Reduced
Deseret Mutual Benefit Administrators1,158$894.7K0.30%+414+55.6%Added
Sentinus, LLC1,161$897.0K0.08%+444+61.9%Added
SBI Okasan Asset Management Co.Ltd.1,200$899.1K0.04%−300−20.0%Reduced
Trust Asset Management LLC1,168$902.4K0.06%00.0%Unchanged
CSS LLC1,170$904.0K0.05%+830+244.1%Added
XML Financial, LLC1,170$904.0K0.07%+85+7.8%Added
TCG Advisory Services, LLC1,180$911.7K0.02%+839+246.0%Added
Westwood Holdings Group Inc.1,186$916.4K0.01%−298−20.1%Reduced
Valley National Advisers Inc1,187$917.0K0.12%−16−1.3%Reduced
denkapparat Operations GmbH1,192$921.0K0.38%00.0%Unchanged
Boston Trust Walden Corp1,193$921.8K0.01%−260−17.9%Reduced
Parcion Private Wealth LLC1,194$922.5K0.06%+11+0.9%Added
Ballentine Partners, LLC1,199$926.4K0.01%+90+8.1%Added
Wedmont Private Capital1,198$929.2K0.03%+76+6.8%Added
Perbak Capital Partners LLP1,205$931.0K0.23%+891+283.8%Added
Abacus Wealth Partners, LLC1,208$933.3K0.09%+68+6.0%Added
Leonteq Securities AG1,212$936.4K0.06%−130−9.7%Reduced
Twin Capital Management Inc1,213$937.2K0.12%−32−2.6%Reduced
Princeton Capital Management LLC1,219$942.0K0.26%−21−1.7%Reduced
Westhampton Capital, LLC1,223$944.9K0.44%00.0%Unchanged
Central Pacific Bank - Trust Division1,227$948.0K0.12%−170−12.2%Reduced
Circle Wealth Management, LLC1,240$958.1K0.01%+15+1.2%Added
Crossmark Global Holdings, Inc.1,242$959.6K0.01%−5−0.4%Reduced
Fidelis Capital Partners, LLC1,249$965.0K0.07%+4+0.3%Added
Evercore Wealth Management, LLC1,254$968.9K0.02%+75+6.4%Added
Ashton Thomas Securities, LLC1,259$972.8K0.12%+45+3.7%Added
Polymer Capital Management (HK) LTD1,259$972.8K0.14%+1,259New
Aptus Capital Advisors, LLC1,264$976.6K0.01%−399−24.0%Reduced
Moody National Bank Trust Division1,282$990.5K0.09%−5−0.4%Reduced
Skba Capital Management LLC1,295$1.00M0.14%00.0%Unchanged