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 |
|---|---|---|---|---|---|
| Panagora Asset Management Inc | 105,225 | $81.3M | 0.30% | +57,540+120.7% | Added |
| Adage Capital Partners GP, L.L.C. | 103,097 | $79.7M | 0.12% | +20,651+25.0% | Added |
| Capital Research Global Investors | 101,891 | $78.7M | 0.01% | −1,445−1.4% | Reduced |
| Worldquant Millennium Advisors LLC | 100,669 | $77.8M | 0.30% | +41,315+69.6% | Added |
| Zurich Insurance Group Ltd | 99,069 | $76.5M | 0.60% | +58,257+142.7% | Added |
| Bank of Nova Scotia | 97,520 | $75.3M | 0.13% | −22,491−18.7% | Reduced |
| Parnassus Investments | 97,495 | $75.3M | 0.22% | +950+1.0% | Added |
| Nordea Investment Management AB | 94,322 | $72.4M | 0.07% | −42,999−31.3% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 92,856 | $71.7M | 0.22% | +60.0% | Added |
| PGGM Investments | 92,584 | $71.5M | 1.25% | 00.0% | Unchanged |
| Credit Agricole S A | 92,416 | $71.4M | 0.23% | −16,527−15.2% | Reduced |
| Aviva PLC | 91,176 | $70.4M | 0.12% | +2,537+2.9% | Added |
| State Board of Administration of Florida Retirement System | 89,974 | $69.5M | 0.13% | −2,762−3.0% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 88,871 | $68.7M | 0.15% | +7,629+9.4% | Added |
| Mackenzie Financial Corp | 86,317 | $66.7M | 0.08% | +7,581+9.6% | Added |
| New York State Teachers Retirement System | 86,126 | $66.5M | 0.14% | −163−0.2% | Reduced |
| Seizert Capital Partners, LLC | 85,681 | $66.2M | 3.05% | −9,024−9.5% | Reduced |
| Bank of Montreal | 85,524 | $66.1M | 0.03% | −15,453−15.3% | Reduced |
| Integral Health Asset Management, LLC | 85,000 | $65.7M | 3.48% | −20,000−19.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 84,608 | $65.4M | 0.19% | +7,404+9.6% | Added |
| Qube Research & Technologies Ltd | 83,358 | $64.4M | 0.09% | −58,825−41.4% | Reduced |
| Gotham Asset Management, LLC | 82,846 | $64.0M | 0.20% | +2,575+3.2% | Added |
| Pinnacle Associates Ltd | 82,512 | $63.8M | 0.82% | −1,229−1.5% | Reduced |
| Great West Life Assurance Co | 78,886 | $61.1M | 0.11% | +3,668+4.9% | Added |
| Los Angeles Capital Management LLC | 78,880 | $60.9M | 0.24% | −21,628−21.5% | Reduced |
| Ieq Capital, LLC | 78,302 | $60.5M | 0.28% | +9,665+14.1% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 75,462 | $58.3M | 0.10% | −39,251−34.2% | Reduced |
| SEI Investments Co | 75,000 | $57.9M | 0.05% | +18,403+32.5% | Added |
| Capitolis Liquid Global Markets LLC | 75,000 | $57.9M | 0.37% | +75,000 | New |
| Clearbridge Investments, LLC | 73,792 | $57.0M | 0.05% | +11,761+19.0% | Added |
| Korea Investment CORP | 73,063 | $56.5M | 0.12% | +3,829+5.5% | Added |
| Harvest Portfolios Group Inc. | 72,397 | $55.9M | 0.92% | −9,351−11.4% | Reduced |
| Groupama Asset Managment | 71,102 | $54.9M | 0.80% | −80−0.1% | Reduced |
| NEOS Investment Management LLC | 70,401 | $54.4M | 0.27% | +8,147+13.1% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 72,430 | $54.2M | 0.54% | −14,545−16.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 69,854 | $54.0M | 0.07% | +702+1.0% | Added |
| Mediolanum International Funds Ltd | 71,209 | $53.4M | 0.57% | +25,674+56.4% | Added |
| Spears Abacus Advisors LLC | 68,914 | $53.2M | 1.04% | −20,481−22.9% | Reduced |
| Woodline Partners LP | 67,751 | $52.3M | 0.20% | +2,783+4.3% | Added |
| GuoLine Advisory Pte Ltd | 67,300 | $52.0M | 5.44% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 66,802 | $51.6M | 0.08% | +57,720+635.5% | Added |
| CWM, LLC | 66,400 | $51.3M | 0.13% | +5,831+9.6% | Added |
| LPL Financial LLC | 63,987 | $49.4M | 0.01% | +1,368+2.2% | Added |
| Millennium Management LLC | 62,730 | $48.5M | 0.04% | −317,038−83.5% | Reduced |
| Van Eck Associates Corp | 62,584 | $48.4M | 0.04% | −2,311−3.6% | Reduced |
| Treasurer of the State of North Carolina | 60,382 | $46.7M | 0.15% | +2,574+4.5% | Added |
| HighTower Advisors, LLC | 58,925 | $45.5M | 0.05% | +12,838+27.9% | Added |
| KLP Kapitalforvaltning AS | 58,308 | $45.1M | 0.18% | +6,640+12.9% | Added |
| Cambiar Investors LLC | 58,183 | $45.0M | 2.08% | −1,980−3.3% | Reduced |
| Baird Financial Group, Inc. | 57,589 | $44.5M | 0.07% | +7,719+15.5% | Added |
| Erste Asset Management GmbH | 57,209 | $42.9M | 0.40% | +5,160+9.9% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 55,353 | $42.8M | 0.11% | −1,351−2.4% | Reduced |
| Natixis | 55,307 | $42.7M | 0.17% | +21,507+63.6% | Added |
| State of Wisconsin Investment Board | 55,274 | $42.7M | 0.10% | −3,805−6.4% | Reduced |
| APG Asset Management N.V. | 63,436 | $42.5M | 0.13% | −7,628−10.7% | Reduced |
| Nomura Asset Management International Inc. | 54,475 | $42.1M | 0.07% | −1,047−1.9% | Reduced |
| Nomura Asset Management Co Ltd | 53,934 | $41.7M | 0.11% | +517+1.0% | Added |
| Allspring Global Investments Holdings, LLC | 52,497 | $40.8M | 0.07% | +14,938+39.8% | Added |
| Public Sector Pension Investment Board | 52,037 | $40.2M | 0.13% | +39,285+308.1% | Added |
| Vanguard Investments Australia, Ltd. | 51,305 | $39.6M | 0.11% | +51,305 | New |
| Asset Management One Co.,Ltd. | 50,805 | $39.3M | 0.12% | −3,376−6.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 50,755 | $39.2M | 0.10% | +1,741+3.6% | Added |
| Stifel Financial Corp | 48,907 | $37.8M | 0.03% | −1,613−3.2% | Reduced |
| Quantinno Capital Management LP | 48,251 | $37.3M | 0.06% | +9,590+24.8% | Added |
| Rhenman & Partners Asset Management AB | 48,100 | $37.2M | 4.59% | −13,300−21.7% | Reduced |
| Citadel Advisors LLC | 47,687 | $36.8M | 0.03% | −97,283−67.1% | Reduced |
| ARS Investment Partners, LLC | 45,270 | $35.0M | 1.82% | +9,825+27.7% | Added |
| Davern Capital Partners, LP | 44,800 | $34.6M | 9.50% | −7,620−14.5% | Reduced |
| Cerity Partners LLC | 43,972 | $34.0M | 0.05% | +9,745+28.5% | Added |
| Public Employees Retirement System of Ohio | 43,886 | $33.9M | 0.11% | +2,710+6.6% | Added |
| DnB Asset Management AS | 43,381 | $33.5M | 0.12% | −2,776−6.0% | Reduced |
| Guggenheim Capital LLC | 42,909 | $33.2M | 0.26% | −2,009−4.5% | Reduced |
| CIBC Asset Management Inc | 42,517 | $32.9M | 0.08% | −150−0.4% | Reduced |
| Atwood & Palmer Inc | 41,702 | $32.2M | 1.82% | −115−0.3% | Reduced |
| State of Tennessee, Treasury Department | 41,458 | $32.0M | 0.11% | +1,322+3.3% | Added |
| Mn Services Vermogensbeheer B.V. | 41,213 | $31.8M | 0.21% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 40,631 | $31.4M | 0.17% | +1,649+4.2% | Added |
| Banco Santander, S.A. | 40,590 | $31.4M | 0.25% | +2,858+7.6% | Added |
| Creative Planning | 40,152 | $31.0M | 0.02% | +10,018+33.2% | Added |
| Truist Financial Corp | 40,108 | $31.0M | 0.04% | +1,667+4.3% | Added |
| Vestal Point Capital, LP | 40,000 | $30.9M | 0.86% | +40,000 | New |
| Wedge Capital Management L L P | 39,712 | $30.7M | 0.57% | −1,590−3.8% | Reduced |
| Howland Capital Management LLC | 39,345 | $30.4M | 1.20% | +1,485+3.9% | Added |
| Toroso Investments, LLC | 39,652 | $30.2M | 0.09% | +24,251+157.5% | Added |
| LMCG Investments, LLC | 38,979 | $30.1M | 1.79% | −842−2.1% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 38,973 | $30.0M | 0.09% | −2,389−5.8% | Reduced |
| Captrust Financial Advisors | 38,502 | $29.7M | 0.05% | +17,323+81.8% | Added |
| KBC Group NV | 38,473 | $29.7M | 0.07% | +258+0.7% | Added |
| Toronto Dominion Bank | 38,427 | $29.7M | 0.06% | −15,531−28.8% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 38,270 | $29.6M | 0.03% | −168−0.4% | Reduced |
| Daiwa Securities Group Inc. | 36,525 | $28.2M | 0.08% | +6,754+22.7% | Added |
| Grandfield & Dodd, LLC | 36,415 | $28.1M | 1.59% | −153−0.4% | Reduced |
| Armistice Capital, LLC | 36,126 | $27.9M | 0.92% | −47,874−57.0% | Reduced |
| Storebrand Asset Management AS | 35,939 | $27.8M | 0.08% | +3,802+11.8% | Added |
| State of New Jersey Common Pension Fund D | 35,297 | $27.3M | 0.11% | −219−0.6% | Reduced |
| Tamar Securities, LLC | 35,199 | $27.2M | 2.92% | −5,257−13.0% | Reduced |
| Fifth Third Bancorp | 34,910 | $27.0M | 0.05% | +19,485+126.3% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 33,101 | $25.6M | 0.13% | −4,987−13.1% | Reduced |
| Regions Financial Corp | 32,790 | $25.3M | 0.16% | +29,914+1,040.1% | Added |
| Ceredex Value Advisors LLC | 32,450 | $25.1M | 0.79% | +3,901+13.7% | Added |