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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 4 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
Beese Fulmer Investment Management, Inc.882$681.5K0.04%+360+69.0%Added
Knightsbridge Asset Management, LLC874$675.3K0.09%+219+33.4%Added
WJ Financial Advisors LLC865$668.3K0.54%+4+0.5%Added
Charter Oak Capital Management, LLC863$666.8K0.05%−95−9.9%Reduced
GenTrust, LLC859$663.8K0.03%+290+51.0%Added
Bangor Savings Bank857$662.2K0.05%00.0%Unchanged
AlphaCore Capital LLC856$661.0K0.02%+377+78.7%Added
J.W. Cole Advisors, Inc.855$660.8K0.02%+855New
Welch Group, LLC849$656.0K0.02%+500+143.3%Added
Formidable Asset Management, LLC847$654.4K0.10%−30−3.4%Reduced
Gradient Investments LLC846$653.7K0.01%−50−5.6%Reduced
Pensionmark Financial Group, LLC845$652.9K0.01%+47+5.9%Added
American Assets Inc7,000$647.5K0.22%+5,200+288.9%Added
Geneos Wealth Management Inc.835$644.8K0.01%+15+1.8%Added
Integrated Advisors Network LLC828$639.4K0.03%+828New
Sumitomo Life Insurance Co826$638.2K0.01%+19+2.4%Added
Smartleaf Asset Management LLC846$634.5K0.02%+137+19.3%Added
Pointe Capital Management LLC817$631.2K0.31%−29−3.4%Reduced
Lecap Asset Management Ltd816$630.5K0.24%+467+133.8%Added
Williams Jones Wealth Management, LLC.810$625.8K0.01%−9−1.1%Reduced
OpenArc Corporate Advisory, LLC809$625.1K0.01%+143+21.5%Added
Moors & Cabot, Inc.803$620.5K0.03%+18+2.3%Added
Pinnacle Financial Partners, Inc.801$619.0K0.00%−30−3.6%Reduced
Warner Group LLC799$617.3K0.40%+1+0.1%Added
Capital Performance Advisors LLP785$606.5K0.04%+114+17.0%Added
Penbrook Management LLC785$606.5K0.46%−12−1.5%Reduced
First Horizon Corp783$605.0K0.03%−389−33.2%Reduced
Gateway Investment Advisers LLC779$601.9K0.01%+315+67.9%Added
Value Investment Professionals, LLC777$600.6K1.33%00.0%Unchanged
Crestwood Advisors Group LLC777$600.4K0.01%+66+9.3%Added
Fullerton Fund Management Co Ltd.776$599.6K0.05%−249−24.3%Reduced
JT Stratford LLC775$598.8K0.08%−33−4.1%Reduced
Ronald Blue Trust, Inc.772$596.5K0.01%+533+223.0%Added
Livforsakringsbolaget Skandia, Omsesidigt772$596.1K0.02%00.0%Unchanged
HighPoint Advisor Group LLC768$593.5K0.02%−1,686−68.7%Reduced
GTS Securities LLC767$592.6K0.02%−349−31.3%Reduced
Essex Financial Services, Inc.765$591.4K0.03%+80+11.7%Added
Connecticut Wealth Management, LLC765$591.4K0.02%+4+0.5%Added
Kingswood Wealth Advisors, LLC765$591.3K0.03%+33+4.5%Added
DLK Investment Management, LLC765$591.1K0.23%00.0%Unchanged
Kovitz Investment Group Partners, LLC757$584.9K0.01%−5−0.7%Reduced
Alphadyne Asset Management LP754$582.6K0.08%+754New
Jackson Creek Investment Advisors LLC748$578.0K0.17%−7−0.9%Reduced
Redwood Wealth Management Group, LLC745$575.6K0.25%−10−1.3%Reduced
Flagship Harbor Advisors, LLC744$574.9K0.03%−126−14.5%Reduced
Kovack Advisors, Inc.741$574.0K0.03%+240+47.9%Added
Kingsview Wealth Management, LLC739$571.0K0.01%−72−8.9%Reduced
North Star Asset Management Inc737$569.4K0.02%00.0%Unchanged
Essential Partners LLC735$567.9K0.19%−872−54.3%Reduced
One Wealth Capital Management, LLC772$564.9K0.25%+308+66.4%Added
Cary Street Partner Investment Advisory LLC731$564.8K0.14%+6+0.8%Added
Independent Advisor Alliance725$560.2K0.01%−7−1.0%Reduced
Hancock Whitney Corp792$560.0K0.01%−9−1.1%Reduced
Cidel Asset Management Inc719$555.5K0.03%+130+22.1%Added
Hennion & Walsh Asset Management, Inc.712$550.1K0.02%−306−30.1%Reduced
Monetary Management Group Inc712$550.1K0.13%00.0%Unchanged
Northbridge Financial Group, LLC735$548.7K0.24%−15−2.0%Reduced
Nicolet Bankshares Inc705$544.7K0.02%+705New
QRG Capital Management, Inc.702$542.5K0.01%−82−10.5%Reduced
Alpha Family Trust700$540.8K0.26%−75−9.7%Reduced
Strait & Sound Wealth Management LLC688$531.6K0.20%+14+2.1%Added
Huntington National Bank686$530.0K0.00%+44+6.9%Added
Supplemental Annuity Collective Trust of NJ682$526.9K0.15%+682New
ABN AMRO Bank N.V.678$526.3K0.01%−4−0.6%Reduced
Tritonpoint Wealth, LLC681$526.2K0.06%−148−17.9%Reduced
Alliance Wealth Advisors, LLC677$523.1K0.11%−300−30.7%Reduced
Cyndeo Wealth Partners, LLC676$522.0K0.03%−4−0.6%Reduced
Horizon Kinetics Asset Management LLC675$521.5K0.01%−30−4.3%Reduced
Alps Advisors Inc667$515.4K0.00%−150−18.4%Reduced
Premier Path Wealth Partners, LLC667$515.2K0.07%+130+24.2%Added
AMJ Financial Wealth Management662$511.5K0.12%00.0%Unchanged
Everhart Financial Group, Inc.660$510.0K0.04%+200+43.5%Added
Change Path, LLC659$509.2K0.01%−123−15.7%Reduced
Avestar Capital, LLC659$509.2K0.03%+24+3.8%Added
Portland Investment Counsel Inc.654$505.3K0.16%+654New
We Are One Seven, LLC649$501.5K0.01%+60+10.2%Added
Abundance Wealth Counselors649$501.4K0.07%+649New
Cove Private Wealth, LLC646$499.1K0.11%+91+16.4%Added
Machina Capital S.A.S.644$497.6K0.10%−963−59.9%Reduced
Harbour Investments, Inc.640$494.5K0.01%+429+203.3%Added
Gamco Investors, Inc. Et Al639$493.7K0.00%−10−1.5%Reduced
Wedbush Securities Inc634$490.0K0.01%+1+0.2%Added
Ellevest, Inc.631$487.5K0.07%−278−30.6%Reduced
Aspire Growth Partners LLC626$484.0K0.33%00.0%Unchanged
Oslo Pensjonsforsikring AS626$483.7K0.08%+626New
Intrust Bank NA623$481.4K0.04%+187+42.9%Added
Institute for Wealth Management, LLC.616$475.9K0.05%00.0%Unchanged
Intesa Sanpaolo S.p.A.620$473.4K0.03%−470−43.1%Reduced
SRS Capital Advisors, Inc.613$471.3K0.01%−375−38.0%Reduced
Wick Capital Partners, LLC606$468.0K0.09%+171+39.3%Added
Tobam603$466.0K0.12%+105+21.1%Added
QTR Family Wealth, LLC614$463.9K0.19%+64+11.6%Added
Chesapeake Capital Corp596$460.5K0.33%00.0%Unchanged
Sym Financial Corp595$459.7K0.05%+13+2.2%Added
Checchi Capital Advisers, LLC595$459.7K0.03%+111+22.9%Added
S-Bank Fund Management Ltd594$458.9K0.07%−22−3.6%Reduced
West Family Investments, Inc.594$458.9K0.16%−192−24.4%Reduced
Kera Capital Partners, Inc.593$458.2K0.06%+118+24.8%Added
IHT Wealth Management, LLC587$453.4K0.01%−6−1.0%Reduced