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.
| 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,947,735 | $6.91B | 0.12% | +206,465+2.4% | Added |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −604,540−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −460,723−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −56,619−100.0% | Sold out |
| Steadfast Capital Management LP | 0 | $0 | 0.00% | −35,200−100.0% | Sold out |
| Catalio Capital Management, LP | 0 | $0 | 0.00% | −29,797−100.0% | Sold out |
| Ofi Invest Asset Management | 0 | $0 | 0.00% | −31,265−100.0% | Sold out |
| Nikko Asset Management Americas, Inc. | 0 | $0 | 0.00% | −16,171−100.0% | Sold out |
| Diadema Partners LP | 0 | $0 | 0.00% | −10,300−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −10,097−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −8,559−100.0% | Sold out |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Shellback Capital, LP | 0 | $0 | 0.00% | −7,384−100.0% | Sold out |
| Sector Gamma AS | 0 | $0 | 0.00% | −7,165−100.0% | Sold out |
| Freemont Management S.A. | 0 | $0 | 0.00% | −6,600−100.0% | Sold out |
| L & S Advisors Inc | 0 | $0 | 0.00% | −4,653−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −4,591−100.0% | Sold out |
| Cornerstone Advisors, LLC | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Burney Co | 0 | $0 | 0.00% | −3,487−100.0% | Sold out |
| Del-Sette Capital Management, LLC | 0 | $0 | 0.00% | −2,919−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Camarda Financial Advisors, LLC | 0 | $0 | 0.00% | −2,037−100.0% | Sold out |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 0 | $0 | 0.00% | −1,817−100.0% | Sold out |
| Legacy Capital Group California, Inc. | 0 | $0 | 0.00% | −1,716−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −1,554−100.0% | Sold out |
| Tiaa Trust, National Association | 0 | $0 | 0.00% | −1,426−100.0% | Sold out |
| Redwood Investment Management, LLC | 0 | $0 | 0.00% | −1,422−100.0% | Sold out |
| Scotia Capital Inc. | 0 | $0 | 0.00% | −1,316−100.0% | Sold out |
| Richard Bernstein Advisors LLC | 0 | $0 | 0.00% | −1,181−100.0% | Sold out |
| Capital Group Private Client Services, Inc. | 0 | $0 | 0.00% | −1,017−100.0% | Sold out |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −893−100.0% | Sold out |
| Allianz SE | 0 | $0 | 0.00% | −892−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −851−100.0% | Sold out |
| Optimize Financial Inc | 0 | $0 | 0.00% | −749−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −699−100.0% | Sold out |
| Sage Mountain Advisors LLC | 0 | $0 | 0.00% | −686−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −662−100.0% | Sold out |
| Robertson Stephens Wealth Management, LLC | 0 | $0 | 0.00% | −636−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −636−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −630−100.0% | Sold out |
| Whalen Wealth Management Inc. | 0 | $0 | 0.00% | −612−100.0% | Sold out |
| Oversea-Chinese Banking CORP Ltd | 0 | $0 | 0.00% | −604−100.0% | Sold out |
| Lifeworks Advisors, LLC | 0 | $0 | 0.00% | −562−100.0% | Sold out |
| Taproot Management LP | 0 | $0 | 0.00% | −559−100.0% | Sold out |
| McAdam, LLC | 0 | $0 | 0.00% | −517−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −511−100.0% | Sold out |
| Axxcess Wealth Management, LLC | 0 | $0 | 0.00% | −488−100.0% | Sold out |
| Clear Creek Financial Management, LLC | 0 | $0 | 0.00% | −459−100.0% | Sold out |
| Anderson Hoagland & Co | 0 | $0 | 0.00% | −446−100.0% | Sold out |
| Havemeyer Place LP | 0 | $0 | 0.00% | −428−100.0% | Sold out |
| BCS Wealth Management | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Bayforest Capital Ltd | 0 | $0 | 0.00% | −392−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −375−100.0% | Sold out |
| Platform Technology Partners | 0 | $0 | 0.00% | −335−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −331−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −321−100.0% | Sold out |
| GK Wealth Management LLC | 0 | $0 | 0.00% | −320−100.0% | Sold out |
| Strategic Family Wealth Counselors, L.L.C. | 0 | $0 | 0.00% | −334−100.0% | Sold out |
| Avantax Planning Partners, Inc. | 0 | $0 | 0.00% | −317−100.0% | Sold out |
| QP Wealth Management, LLC | 0 | $0 | 0.00% | −310−100.0% | Sold out |
| Eddie Patel Inc | 0 | $0 | 0.00% | −308−100.0% | Sold out |
| Mach-1 Financial Group, Inc. | 0 | $0 | 0.00% | −293−100.0% | Sold out |
| New Republic Capital, LLC | 0 | $0 | 0.00% | −290−100.0% | Sold out |
| HCR Wealth Advisors | 0 | $0 | 0.00% | −286−100.0% | Sold out |
| Armis Advisers, LLC | 0 | $0 | 0.00% | −294−100.0% | Sold out |
| Crescent Sterling, Ltd. | 0 | $0 | 0.00% | −279−100.0% | Sold out |
| Morgan Creek Capital Management, LLC | 0 | $0 | 0.00% | −276−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −274−100.0% | Sold out |
| Sentry Investment Management LLC | 0 | $0 | 0.00% | −262−100.0% | Sold out |
| Brookstone Capital Management | 0 | $0 | 0.00% | −259−100.0% | Sold out |
| TCTC Holdings, LLC | 0 | $0 | 0.00% | −202−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Reflection Asset Management | 0 | $0 | 0.00% | −140−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −134−100.0% | Sold out |
| Kempen Capital Management N.V. | 0 | $0 | 0.00% | −116−100.0% | Sold out |
| Purpose Unlimited Inc. | 0 | $0 | 0.00% | −113−100.0% | Sold out |
| ARK Investment Management LLCSuperinvestorARK Invest | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −105−100.0% | Sold out |
| Berbice Capital Management LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Curat Global, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Ramirez Asset Management, Inc. | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Board of the Pension Protection Fund | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Titan Wealth (CI) Ltd | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| PMV Capital Advisers, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Howard Hughes Medical Institute | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| Garton & Associates Financial Advisors LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Wealth Watch Advisors, INC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Missouri Trust & Investment Co | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Luken Investment Analytics, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Winnow Wealth LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| DV Trading LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Park Square Financial Group, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Legacy Bridge, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Eq Wealth Advisors, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| DAGCO, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Quattro Advisors LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Delos Wealth Advisors, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Atomic Invest LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |