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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,342 | $57.1B |
| Q1 2026 | 1,401 | $69.8B |
| Q4 2025 | 1,387 | $70.7B |
| Q3 2025 | 1,243 | $49.0B |
| Q2 2025 | 1,201 | $46.9B |
| Q1 2025 | 1,290 | $59.0B |
| Q4 2024 | 1,320 | $66.6B |
| Q3 2024 | 1,393 | $97.5B |
| Q2 2024 | 1,335 | $98.9B |
| Q1 2024 | 1,313 | $89.3B |
| Q4 2023 | 1,274 | $80.3B |
| Q3 2023 | 1,180 | $75.1B |
| Q2 2023 | 1,168 | $66.2B |
| Q1 2023 | 1,196 | $76.1B |
| Q4 2022 | 1,161 | $66.9B |
| Q3 2022 | 1,081 | $64.0B |
| Q2 2022 | 1,066 | $55.0B |
| Q1 2022 | 1,097 | $64.5B |
| Q4 2021 | 1,081 | $56.9B |
| Q3 2021 | 1,022 | $54.5B |
| Q2 2021 | 975 | $49.6B |
| Q1 2021 | 926 | $42.3B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 32,164 | $24.9M | 0.06% | +32,164 | New |
| Hudson Bay Capital Management LP | 32,001 | $24.7M | 0.15% | +5,874+22.5% | Added |
| Resona Asset Management Co.,Ltd. | 32,060 | $24.6M | 0.12% | +106+0.3% | Added |
| STRS Ohio | 31,656 | $24.5M | 0.10% | −1,340−4.1% | Reduced |
| General American Investors Co Inc | 31,362 | $24.2M | 1.60% | 00.0% | Unchanged |
| ING Groep NV | 31,191 | $24.1M | 0.15% | −25,406−44.9% | Reduced |
| Orion Investment Co | 30,837 | $23.8M | 7.59% | +25+0.1% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 30,702 | $23.7M | 0.13% | +11,050+56.2% | Added |
| Freestone Grove Partners LP | 30,625 | $23.7M | 0.17% | −10,784−26.0% | Reduced |
| Susquehanna International Group, LLP | 30,620 | $23.7M | 0.03% | −61,841−66.9% | Reduced |
| Traynor Capital Management, Inc. | 31,466 | $23.6M | 1.40% | +103+0.3% | Added |
| Tredje AP-fonden | 29,748 | $23.0M | 0.13% | +13,418+82.2% | Added |
| Rafferty Asset Management, LLC | 29,589 | $22.9M | 0.09% | −5,730−16.2% | Reduced |
| Nissay Asset Management Corp | 28,869 | $22.3M | 0.12% | +843+3.0% | Added |
| Vontobel Holding Ltd. | 28,794 | $22.2M | 0.08% | +15,251+112.6% | Added |
| Washington Trust Advisors, Inc. | 28,735 | $22.2M | 1.80% | −689−2.3% | Reduced |
| Distillate Capital Partners LLC | 28,570 | $22.1M | 1.16% | +192+0.7% | Added |
| Rockefeller Capital Management L.P. | 28,520 | $22.0M | 0.04% | +1,467+5.4% | Added |
| Arizona State Retirement System | 28,298 | $21.9M | 0.13% | −934−3.2% | Reduced |
| GF Fund Management Co. Ltd. | 28,281 | $21.9M | 0.37% | −830−2.9% | Reduced |
| Czech National Bank | 27,453 | $21.2M | 0.14% | +878+3.3% | Added |
| Wealth Enhancement Advisory Services, LLC | 37,596 | $21.0M | 0.05% | +15,233+68.1% | Added |
| DDD Partners, LLC | 26,920 | $20.8M | 1.44% | +2,846+11.8% | Added |
| State of Michigan Retirement System | 26,321 | $20.3M | 0.11% | −100−0.4% | Reduced |
| WestEnd Advisors, LLC | 25,613 | $19.8M | 0.48% | +25,606+365,800.0% | Added |
| Factory Mutual Insurance Co | 25,600 | $19.8M | 0.22% | +800+3.2% | Added |
| Virginia Retirement Systems Et Al | 25,474 | $19.7M | 0.15% | −16,240−38.9% | Reduced |
| CIBC Bancorp USA Inc. | 25,263 | $19.5M | 0.03% | +25,263 | New |
| Illinois Municipal Retirement Fund | 24,865 | $19.2M | 0.24% | −984−3.8% | Reduced |
| Capital International Sarl | 24,602 | $19.0M | 0.31% | +1,331+5.7% | Added |
| Bellecapital International Ltd. | 24,286 | $18.8M | 3.39% | +1,177+5.1% | Added |
| GW Henssler & Associates Ltd | 23,930 | $18.5M | 0.87% | −512−2.1% | Reduced |
| MetLife Investment Management | 23,567 | $18.2M | 0.09% | −607−2.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 23,481 | $18.1M | 0.09% | +39+0.2% | Added |
| D. E. Shaw & Co., Inc. | 22,730 | $17.6M | 0.01% | −132,745−85.4% | Reduced |
| Bridgewater Associates, LP | 22,724 | $17.6M | 0.08% | −50,021−68.8% | Reduced |
| Raiffeisen Bank International AG | 23,203 | $17.4M | 0.25% | +640+2.8% | Added |
| Oppenheimer & Co Inc | 22,477 | $17.4M | 0.21% | −2,315−9.3% | Reduced |
| One Capital Management, LLC | 22,368 | $17.3M | 0.47% | +743+3.4% | Added |
| SEB Asset Management AB | 21,697 | $16.8M | 0.07% | +21,697 | New |
| Teacher Retirement System of Texas | 21,477 | $16.6M | 0.07% | −3,455−13.9% | Reduced |
| Noesis Capital Mangement Corp | 21,380 | $16.5M | 2.44% | −70.0% | Reduced |
| China Universal Asset Management Co., Ltd. | 21,361 | $16.5M | 1.25% | +1,608+8.1% | Added |
| IFM Investors Pty Ltd | 21,032 | $16.3M | 0.14% | +294+1.4% | Added |
| iA Global Asset Management Inc. | 20,646 | $16.0M | 0.23% | −368−1.8% | Reduced |
| Rakuten Investment Management, Inc. | 21,260 | $15.9M | 0.03% | +2,257+11.9% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 20,571 | $15.9M | 0.15% | +468+2.3% | Added |
| USS Investment Management Ltd | 20,230 | $15.6M | 0.07% | +915+4.7% | Added |
| Mercer Global Advisors Inc | 20,053 | $15.5M | 0.02% | +4,917+32.5% | Added |
| Woodstock Corp | 19,855 | $15.3M | 1.37% | +1,209+6.5% | Added |
| Schaper Benz & Wise Investment Counsel Inc | 19,849 | $15.3M | 1.17% | −675−3.3% | Reduced |
| Nisa Investment Advisors, LLC | 19,771 | $15.3M | 0.06% | −1,191−5.7% | Reduced |
| Nomura Holdings Inc | 19,562 | $15.1M | 0.13% | −20,833−51.6% | Reduced |
| Beacon Pointe Advisors, LLC | 19,460 | $15.0M | 0.08% | +7,396+61.3% | Added |
| CBOE Vest Financial, LLC | 19,363 | $15.0M | 0.18% | +19,363 | New |
| Ensign Peak Advisors, Inc | 19,052 | $14.7M | 0.03% | +4,203+28.3% | Added |
| Amalgamated Bank | 18,737 | $14.5M | 0.11% | −523−2.7% | Reduced |
| Quadrature Capital Ltd | 18,602 | $14.4M | 0.17% | −9,009−32.6% | Reduced |
| State of Alaska, Department of Revenue | 18,363 | $14.2M | 0.15% | +60+0.3% | Added |
| Swiss Life Asset Management Ltd | 30,525 | $14.1M | 0.07% | +19,763+183.6% | Added |
| The PNC Financial Services Group, Inc. | 18,226 | $14.1M | 0.01% | +866+5.0% | Added |
| Varma Mutual Pension Insurance Co | 18,088 | $14.0M | 0.08% | +1,000+5.9% | Added |
| Glenmede Trust Co NA | 18,059 | $14.0M | 0.07% | −10.0% | Reduced |
| Xponance, Inc. | 18,013 | $13.9M | 0.10% | +2,377+15.2% | Added |
| CI Private Wealth, LLC | 18,073 | $13.9M | 0.02% | +1,483+8.9% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 17,875 | $13.8M | 0.76% | −3,124−14.9% | Reduced |
| Shelton Capital Management | 17,487 | $13.5M | 0.30% | −360−2.0% | Reduced |
| F/M Investments LLC | 17,384 | $13.4M | 0.89% | −5,429−23.8% | Reduced |
| Private Advisor Group, LLC | 17,315 | $13.4M | 0.06% | −453−2.5% | Reduced |
| MUFG Securities EMEA plc | 17,132 | $13.2M | 0.20% | +13,000+314.6% | Added |
| MML Investors Services, LLC | 17,009 | $13.1M | 0.04% | −2,869−14.4% | Reduced |
| Lazard Asset Management LLC | 17,004 | $13.1M | 0.02% | +6,166+56.9% | Added |
| R.P. Boggs & Co. | 16,778 | $13.0M | 6.27% | −12,566−42.8% | Reduced |
| Martingale Asset Management L P | 16,861 | $13.0M | 0.33% | +7,097+72.7% | Added |
| Applied Finance Capital Management, LLC | 16,835 | $13.0M | 0.98% | −2,246−11.8% | Reduced |
| New York Life Investment Management LLC | 16,817 | $13.0M | 0.11% | +1,730+11.5% | Added |
| North Point Portfolio Managers Corp | 16,743 | $12.9M | 2.30% | −10.0% | Reduced |
| Utah Retirement Systems | 16,492 | $12.7M | 0.13% | −580−3.4% | Reduced |
| Eurizon Capital SGR S.p.A. | 16,525 | $12.7M | 0.04% | +2,960+21.8% | Added |
| Summit Financial, LLC | 16,466 | $12.7M | 0.16% | +3,682+28.8% | Added |
| Colony Group, LLC | 16,441 | $12.7M | 0.01% | +4,535+38.1% | Added |
| Commonwealth Equity Services, LLC | 16,385 | $12.7M | 0.02% | +263+1.6% | Added |
| J. Goldman & Co LP | 16,268 | $12.6M | 0.58% | +9,916+156.1% | Added |
| Greenwich Wealth Management LLC | 16,102 | $12.4M | 0.51% | −19−0.1% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 16,148 | $12.4M | 0.09% | −19,890−55.2% | Reduced |
| Cetera Investment Advisers | 16,006 | $12.4M | 0.01% | +198+1.3% | Added |
| Pathstone Holdings, LLC | 15,912 | $12.3M | 0.05% | +988+6.6% | Added |
| Tocqueville Asset Management L.P. | 15,779 | $12.2M | 0.18% | −31,045−66.3% | Reduced |
| Empowered Funds, LLC | 15,618 | $12.1M | 0.08% | −17,442−52.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 15,600 | $12.1M | 0.10% | +30+0.2% | Added |
| Klingenstein Fields & Co LP | 15,566 | $12.0M | 0.47% | −369−2.3% | Reduced |
| Picton Mahoney Asset Management | 15,408 | $11.9M | 0.12% | −176−1.1% | Reduced |
| Voloridge Investment Management, LLC | 15,364 | $11.9M | 0.05% | +15,364 | New |
| PBU - The Pension Fund of Early Childhood & Youth Educators | 15,033 | $11.6M | 0.17% | +1,820+13.8% | Added |
| Ethic Inc. | 15,017 | $11.6M | 0.18% | −926−5.8% | Reduced |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 14,975 | $11.6M | 0.41% | −8,072−35.0% | Reduced |
| M. Kulyk & Associates, LLC | 14,895 | $11.5M | 2.15% | +91+0.6% | Added |
| Winton Group Ltd | 14,778 | $11.4M | 0.40% | +12,018+435.4% | Added |
| Charter Trust Co | 14,714 | $11.4M | 0.67% | +18+0.1% | Added |
| OrbiMed Advisors LLC | 14,700 | $11.4M | 0.26% | +14,700 | New |