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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 2024

Institutional positions in Regeneron Pharmaceuticals, Inc. as of Mar 31, 2024. 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
1,313
+55 vs. Q4 2023
Shares held
93.3M
+3.06M (+3.4%) vs. Q4 2023
Total value
$89.3B
+$10.1B (+12.7%) vs. Q4 2023
New holders
151
484 more added
Sold out
96
449 more reduced

16 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 2024: 1,313 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 2024: $89.3B
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 2024

Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2023.

Institutions holding REGN in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Walleye Trading LLC4,703$4.53M0.07%+3,085+190.7%Added
Private Advisor Group, LLC4,704$4.53M0.03%−180−3.7%Reduced
Cavalier Investments, LLC4,757$4.58M1.67%+225+5.0%Added
BI Asset Management Fondsmaeglerselskab A/S4,779$4.60M0.09%+285+6.3%Added
Two Sigma Investments, LP4,781$4.60M0.01%−60,437−92.7%Reduced
TownSquare Capital, LLC4,792$4.61M0.07%+259+5.7%Added
TD Waterhouse Canada Inc.4,809$4.69M0.04%+881+22.4%Added
Gilman Hill Asset Management, LLC4,892$4.71M0.84%−15−0.3%Reduced
Lifeworks Advisors, LLC4,904$4.72M1.32%+590+13.7%Added
Toroso Investments, LLC4,955$4.77M0.08%+711+16.8%Added
Colony Group, LLC4,993$4.81M0.04%+2,319+86.7%Added
US Bancorp5,010$4.82M0.01%+69+1.4%Added
Polar Asset Management Partners Inc.5,020$4.83M0.13%−4,480−47.2%Reduced
Ieq Capital, LLC5,024$4.84M0.07%+585+13.2%Added
Bessemer Group Inc5,075$4.89M0.01%+2,624+107.1%Added
Boothbay Fund Management, LLC5,081$4.89M0.14%+5,081New
Sanibel Captiva Trust Company, Inc.5,082$4.89M0.17%−56−1.1%Reduced
Wolverine Trading, LLC5,137$4.94M0.05%+2,685+109.5%Added
Lighthouse Investment Partners, LLC5,188$4.99M0.29%+5,188New
Metis Global Partners, LLC5,233$5.04M0.18%+7+0.1%Added
Cambridge Investment Research Advisors, Inc.5,240$5.04M0.02%−2,883−35.5%Reduced
Squarepoint Ops LLC5,271$5.07M0.02%−37,892−87.8%Reduced
Cornerstone Advisors, LLC5,300$5.10M0.21%00.0%Unchanged
HealthInvest Partners AB5,393$5.19M3.16%+1,414+35.5%Added
New Mexico Educational Retirement Board5,400$5.20M0.19%−200−3.6%Reduced
MML Investors Services, LLC5,403$5.20M0.02%−176−3.2%Reduced
Almanack Investment Partners, LLC.5,407$5.20M0.89%+2,807+108.0%Added
Kennedy Capital Management, Inc.5,413$5.21M0.11%+5,413New
Ossiam5,429$5.23M0.09%+302+5.9%Added
Natixis5,456$5.25M0.03%−16,576−75.2%Reduced
M&T Bank Corp5,570$5.36M0.02%+241+4.5%Added
Legato Capital Management LLC5,695$5.48M0.66%+200+3.6%Added
Codex Capital, L.L.C.5,750$5.53M2.70%00.0%Unchanged
Fisher Asset Management, LLC5,814$5.60M0.00%+192+3.4%Added
RPg Family Wealth Advisory, LLC5,847$5.63M1.78%+79+1.4%Added
Univest Financial Corp5,850$5.63M1.58%−1,159−16.5%Reduced
Engineers Gate Manager LP5,935$5.71M0.15%+5,062+579.8%Added
Unison Advisors LLC5,998$5.77M0.57%00.0%Unchanged
Siemens Fonds Invest GmbH6,002$5.78M0.45%+272+4.7%Added
Gunderson Capital Management Inc.6,064$5.84M2.71%+6,064New
Kestra Advisory Services, LLC6,105$5.88M0.04%+1,167+23.6%Added
Veracity Capital LLC6,122$5.89M2.29%−241−3.8%Reduced
Ethic Inc.6,159$5.93M0.15%+602+10.8%Added
Securian Asset Management, Inc6,214$5.98M0.18%−616−9.0%Reduced
Commerce Bank6,246$6.01M0.04%+29+0.5%Added
Family Management Corp6,276$6.04M1.12%+577+10.1%Added
Swiss Life Asset Management Ltd6,307$6.07M0.08%−12,317−66.1%Reduced
Covenant Asset Management, LLC6,355$6.12M1.49%−11−0.2%Reduced
J. Goldman & Co LP6,598$6.35M0.29%−39,005−85.5%Reduced
Kempen Capital Management N.V.6,627$6.38M0.08%+1,520+29.8%Added
Generate Investment Management Ltd6,705$6.45M0.51%+6,705New
Bedell Frazier Investment Counseling, LLC6,814$6.56M1.64%−60−0.9%Reduced
Ziegler Capital Management, LLC6,827$6.57M0.25%−158−2.3%Reduced
Hartford Investment Management Co6,828$6.57M0.23%−391−5.4%Reduced
AIA Group Ltd6,888$6.63M0.22%+2,166+45.9%Added
O'Shaughnessy Asset Management, LLC6,920$6.66M0.07%+1,030+17.5%Added
Ledyard National Bank6,981$6.72M0.65%−454−6.1%Reduced
Ellerson Group Inc7,072$6.81M5.20%−23−0.3%Reduced
Sectoral Asset Management Inc7,075$6.81M2.68%+3,240+84.5%Added
Bellevue Group AG7,077$6.81M0.10%−3,632−33.9%Reduced
Summit Financial, LLC7,291$7.02M0.42%−717−9.0%Reduced
FORA Capital, LLC7,324$7.05M0.58%+7,324New
Banco Santander, S.A.7,445$7.17M0.09%−959−11.4%Reduced
Maryland State Retirement & Pension System8,048$7.31M0.15%+68+0.9%Added
NEOS Investment Management LLC7,610$7.32M0.45%+1,534+25.2%Added
Advisors Asset Management, Inc.7,617$7.33M0.14%−757−9.0%Reduced
Edgestream Partners, L.P.7,639$7.35M0.37%+7,639New
Quantitative Investment Management, LLC7,643$7.36M0.43%−17,552−69.7%Reduced
Marietta Wealth Management, LLC7,712$7.42M1.23%−141−1.8%Reduced
Cardinal Capital Management7,774$7.48M1.22%+284+3.8%Added
Madison Asset Management, LLC7,791$7.50M0.09%−499−6.0%Reduced
Sienna Gestion7,799$7.51M0.69%+7,799New
Cutter & CO Brokerage, Inc.7,826$7.53M1.85%−57−0.7%Reduced
Founders Capital Management, LLC7,839$7.54M1.40%00.0%Unchanged
Thrivent Financial for Lutherans7,846$7.55M0.02%−2,153−21.5%Reduced
Hancock Whitney Corp7,879$7.58M0.26%+278+3.7%Added
Ilmarinen Mutual Pension Insurance Co8,000$7.70M0.09%00.0%Unchanged
Kentucky Retirement Systems8,023$7.72M0.23%−548−6.4%Reduced
Credit Agricole S A8,673$7.75M0.13%+3,489+67.3%Added
Perigon Wealth Management, LLC8,080$7.78M0.24%+1,968+32.2%Added
De Burlo Group Inc8,090$7.79M1.03%+8,090New
Capital Group Investment Management Pte. Ltd.8,139$7.83M1.40%−5,453−40.1%Reduced
Degroof Petercam Asset Management8,370$8.06M0.10%+900+12.0%Added
Fifth Third Bancorp8,372$8.06M0.03%−240−2.8%Reduced
JustInvest LLC8,430$8.11M0.17%+386+4.8%Added
Fiduciary Trust Co8,438$8.12M0.12%00.0%Unchanged
Stratos Wealth Advisors, LLC8,465$8.15M0.48%+156+1.9%Added
Employees Provident Fund Board8,500$8.18M0.14%−500−5.6%Reduced
Tower Research Capital LLC (TRC)8,524$8.20M0.20%−10,029−54.1%Reduced
Tri Locum Partners LP8,567$8.25M2.86%−7,445−46.5%Reduced
Creative Planning8,624$8.30M0.01%+1,535+21.7%Added
Livforsakringsbolaget Skandia, Omsesidigt8,632$8.30M0.70%00.0%Unchanged
Jefferies Financial Group Inc.8,640$8.32M0.17%+840+10.8%Added
Atria Investments LLC8,657$8.32M0.11%+941+12.2%Added
Raymond James Financial Services Advisors, Inc.8,657$8.33M0.01%−115−1.3%Reduced
Thompson Siegel & Walmsley LLC8,730$8.40M0.13%−2,431−21.8%Reduced
Transform Wealth, LLC8,794$8.46M0.80%+344+4.1%Added
Atika Capital Management LLC8,800$8.47M0.95%+8,800New
Cinctive Capital Management LP8,887$8.55M0.44%+2,887+48.1%Added
Captrust Financial Advisors8,899$8.56M0.03%−3,645−29.1%Reduced