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 |
|---|---|---|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 32,164 | $24.9M | 0.06% | +32,164 | New |
| Ceredex Value Advisors LLC | 32,450 | $25.1M | 0.79% | +3,901+13.7% | Added |
| Regions Financial Corp | 32,790 | $25.3M | 0.16% | +29,914+1,040.1% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 33,101 | $25.6M | 0.13% | −4,987−13.1% | Reduced |
| Fifth Third Bancorp | 34,910 | $27.0M | 0.05% | +19,485+126.3% | Added |
| Tamar Securities, LLC | 35,199 | $27.2M | 2.92% | −5,257−13.0% | Reduced |
| State of New Jersey Common Pension Fund D | 35,297 | $27.3M | 0.11% | −219−0.6% | Reduced |
| Storebrand Asset Management AS | 35,939 | $27.8M | 0.08% | +3,802+11.8% | Added |
| Armistice Capital, LLC | 36,126 | $27.9M | 0.92% | −47,874−57.0% | Reduced |
| Grandfield & Dodd, LLC | 36,415 | $28.1M | 1.59% | −153−0.4% | Reduced |
| Daiwa Securities Group Inc. | 36,525 | $28.2M | 0.08% | +6,754+22.7% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 38,270 | $29.6M | 0.03% | −168−0.4% | Reduced |
| Toronto Dominion Bank | 38,427 | $29.7M | 0.06% | −15,531−28.8% | Reduced |
| KBC Group NV | 38,473 | $29.7M | 0.07% | +258+0.7% | Added |
| Captrust Financial Advisors | 38,502 | $29.7M | 0.05% | +17,323+81.8% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 38,973 | $30.0M | 0.09% | −2,389−5.8% | Reduced |
| LMCG Investments, LLC | 38,979 | $30.1M | 1.79% | −842−2.1% | Reduced |
| Toroso Investments, LLC | 39,652 | $30.2M | 0.09% | +24,251+157.5% | Added |
| Howland Capital Management LLC | 39,345 | $30.4M | 1.20% | +1,485+3.9% | Added |
| Wedge Capital Management L L P | 39,712 | $30.7M | 0.57% | −1,590−3.8% | Reduced |
| Vestal Point Capital, LP | 40,000 | $30.9M | 0.86% | +40,000 | New |
| Truist Financial Corp | 40,108 | $31.0M | 0.04% | +1,667+4.3% | Added |
| Creative Planning | 40,152 | $31.0M | 0.02% | +10,018+33.2% | Added |
| Banco Santander, S.A. | 40,590 | $31.4M | 0.25% | +2,858+7.6% | Added |
| Sanctuary Advisors, LLC | 40,631 | $31.4M | 0.17% | +1,649+4.2% | Added |
| Mn Services Vermogensbeheer B.V. | 41,213 | $31.8M | 0.21% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 41,458 | $32.0M | 0.11% | +1,322+3.3% | Added |
| Atwood & Palmer Inc | 41,702 | $32.2M | 1.82% | −115−0.3% | Reduced |
| CIBC Asset Management Inc | 42,517 | $32.9M | 0.08% | −150−0.4% | Reduced |
| Guggenheim Capital LLC | 42,909 | $33.2M | 0.26% | −2,009−4.5% | Reduced |
| DnB Asset Management AS | 43,381 | $33.5M | 0.12% | −2,776−6.0% | Reduced |
| Public Employees Retirement System of Ohio | 43,886 | $33.9M | 0.11% | +2,710+6.6% | Added |
| Cerity Partners LLC | 43,972 | $34.0M | 0.05% | +9,745+28.5% | Added |
| Davern Capital Partners, LP | 44,800 | $34.6M | 9.50% | −7,620−14.5% | Reduced |
| ARS Investment Partners, LLC | 45,270 | $35.0M | 1.82% | +9,825+27.7% | Added |
| Citadel Advisors LLC | 47,687 | $36.8M | 0.03% | −97,283−67.1% | Reduced |
| Rhenman & Partners Asset Management AB | 48,100 | $37.2M | 4.59% | −13,300−21.7% | Reduced |
| Quantinno Capital Management LP | 48,251 | $37.3M | 0.06% | +9,590+24.8% | Added |
| Stifel Financial Corp | 48,907 | $37.8M | 0.03% | −1,613−3.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 50,755 | $39.2M | 0.10% | +1,741+3.6% | Added |
| Asset Management One Co.,Ltd. | 50,805 | $39.3M | 0.12% | −3,376−6.2% | Reduced |
| Vanguard Investments Australia, Ltd. | 51,305 | $39.6M | 0.11% | +51,305 | New |
| Public Sector Pension Investment Board | 52,037 | $40.2M | 0.13% | +39,285+308.1% | Added |
| Allspring Global Investments Holdings, LLC | 52,497 | $40.8M | 0.07% | +14,938+39.8% | Added |
| Nomura Asset Management Co Ltd | 53,934 | $41.7M | 0.11% | +517+1.0% | Added |
| Nomura Asset Management International Inc. | 54,475 | $42.1M | 0.07% | −1,047−1.9% | Reduced |
| APG Asset Management N.V. | 63,436 | $42.5M | 0.13% | −7,628−10.7% | Reduced |
| State of Wisconsin Investment Board | 55,274 | $42.7M | 0.10% | −3,805−6.4% | Reduced |
| Natixis | 55,307 | $42.7M | 0.17% | +21,507+63.6% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 55,353 | $42.8M | 0.11% | −1,351−2.4% | Reduced |
| Erste Asset Management GmbH | 57,209 | $42.9M | 0.40% | +5,160+9.9% | Added |
| Baird Financial Group, Inc. | 57,589 | $44.5M | 0.07% | +7,719+15.5% | Added |
| Cambiar Investors LLC | 58,183 | $45.0M | 2.08% | −1,980−3.3% | Reduced |
| KLP Kapitalforvaltning AS | 58,308 | $45.1M | 0.18% | +6,640+12.9% | Added |
| HighTower Advisors, LLC | 58,925 | $45.5M | 0.05% | +12,838+27.9% | Added |
| Treasurer of the State of North Carolina | 60,382 | $46.7M | 0.15% | +2,574+4.5% | Added |
| Van Eck Associates Corp | 62,584 | $48.4M | 0.04% | −2,311−3.6% | Reduced |
| Millennium Management LLC | 62,730 | $48.5M | 0.04% | −317,038−83.5% | Reduced |
| LPL Financial LLC | 63,987 | $49.4M | 0.01% | +1,368+2.2% | Added |
| CWM, LLC | 66,400 | $51.3M | 0.13% | +5,831+9.6% | Added |
| Renaissance Technologies LLC | 66,802 | $51.6M | 0.08% | +57,720+635.5% | Added |
| GuoLine Advisory Pte Ltd | 67,300 | $52.0M | 5.44% | 00.0% | Unchanged |
| Woodline Partners LP | 67,751 | $52.3M | 0.20% | +2,783+4.3% | Added |
| Spears Abacus Advisors LLC | 68,914 | $53.2M | 1.04% | −20,481−22.9% | Reduced |
| Mediolanum International Funds Ltd | 71,209 | $53.4M | 0.57% | +25,674+56.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 69,854 | $54.0M | 0.07% | +702+1.0% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 72,430 | $54.2M | 0.54% | −14,545−16.7% | Reduced |
| NEOS Investment Management LLC | 70,401 | $54.4M | 0.27% | +8,147+13.1% | Added |
| Groupama Asset Managment | 71,102 | $54.9M | 0.80% | −80−0.1% | Reduced |
| Harvest Portfolios Group Inc. | 72,397 | $55.9M | 0.92% | −9,351−11.4% | Reduced |
| Korea Investment CORP | 73,063 | $56.5M | 0.12% | +3,829+5.5% | Added |
| Clearbridge Investments, LLC | 73,792 | $57.0M | 0.05% | +11,761+19.0% | Added |
| Capitolis Liquid Global Markets LLC | 75,000 | $57.9M | 0.37% | +75,000 | New |
| SEI Investments Co | 75,000 | $57.9M | 0.05% | +18,403+32.5% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 75,462 | $58.3M | 0.10% | −39,251−34.2% | Reduced |
| Ieq Capital, LLC | 78,302 | $60.5M | 0.28% | +9,665+14.1% | Added |
| Los Angeles Capital Management LLC | 78,880 | $60.9M | 0.24% | −21,628−21.5% | Reduced |
| Great West Life Assurance Co | 78,886 | $61.1M | 0.11% | +3,668+4.9% | Added |
| Pinnacle Associates Ltd | 82,512 | $63.8M | 0.82% | −1,229−1.5% | Reduced |
| Gotham Asset Management, LLC | 82,846 | $64.0M | 0.20% | +2,575+3.2% | Added |
| Qube Research & Technologies Ltd | 83,358 | $64.4M | 0.09% | −58,825−41.4% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 84,608 | $65.4M | 0.19% | +7,404+9.6% | Added |
| Integral Health Asset Management, LLC | 85,000 | $65.7M | 3.48% | −20,000−19.0% | Reduced |
| Bank of Montreal | 85,524 | $66.1M | 0.03% | −15,453−15.3% | Reduced |
| Seizert Capital Partners, LLC | 85,681 | $66.2M | 3.05% | −9,024−9.5% | Reduced |
| New York State Teachers Retirement System | 86,126 | $66.5M | 0.14% | −163−0.2% | Reduced |
| Mackenzie Financial Corp | 86,317 | $66.7M | 0.08% | +7,581+9.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 88,871 | $68.7M | 0.15% | +7,629+9.4% | Added |
| State Board of Administration of Florida Retirement System | 89,974 | $69.5M | 0.13% | −2,762−3.0% | Reduced |
| Aviva PLC | 91,176 | $70.4M | 0.12% | +2,537+2.9% | Added |
| Credit Agricole S A | 92,416 | $71.4M | 0.23% | −16,527−15.2% | Reduced |
| PGGM Investments | 92,584 | $71.5M | 1.25% | 00.0% | Unchanged |
| PFA Pension, Forsikringsaktieselskab | 92,856 | $71.7M | 0.22% | +60.0% | Added |
| Nordea Investment Management AB | 94,322 | $72.4M | 0.07% | −42,999−31.3% | Reduced |
| Parnassus Investments | 97,495 | $75.3M | 0.22% | +950+1.0% | Added |
| Bank of Nova Scotia | 97,520 | $75.3M | 0.13% | −22,491−18.7% | Reduced |
| Zurich Insurance Group Ltd | 99,069 | $76.5M | 0.60% | +58,257+142.7% | Added |
| Worldquant Millennium Advisors LLC | 100,669 | $77.8M | 0.30% | +41,315+69.6% | Added |
| Capital Research Global Investors | 101,891 | $78.7M | 0.01% | −1,445−1.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 103,097 | $79.7M | 0.12% | +20,651+25.0% | Added |