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, Q4 2025
Institutional positions in Regeneron Pharmaceuticals, Inc. as of Dec 31, 2025. 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
- 1,387
- +167 vs. Q3 2025
- Shares held
- 91.6M
- +4.76M (+5.5%) vs. Q3 2025
- Total value
- $70.7B
- +$21.9B (+44.9%) vs. Q3 2025
- New holders
- 273
- 502 more added
- Sold out
- 106
- 457 more reduced
23 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Regeneron Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dana Investment Advisors, Inc. | 8,395 | $6.48M | 0.19% | +3,082+58.0% | Added |
| Cardinal Capital Management | 8,406 | $6.49M | 0.86% | −25−0.3% | Reduced |
| Game Creek Capital, LP | 8,435 | $6.51M | 2.47% | +3,510+71.3% | Added |
| Fiduciary Trust Co | 8,466 | $6.53M | 0.07% | +615+7.8% | Added |
| Stratos Wealth Advisors, LLC | 8,473 | $6.54M | 0.32% | +481+6.0% | Added |
| Simplex Trading, LLC | 8,559 | $6.61M | 0.19% | +2,445+40.0% | Added |
| Apriem Advisors | 8,584 | $6.63M | 0.61% | −64−0.7% | Reduced |
| UniSuper Management Pty Ltd | 8,639 | $6.67M | 0.04% | −920−9.6% | Reduced |
| Legato Capital Management LLC | 8,803 | $6.79M | 0.58% | −1,400−13.7% | Reduced |
| Renaissance Technologies LLC | 9,082 | $7.01M | 0.01% | −266,080−96.7% | Reduced |
| Callan Family Office, LLC | 9,092 | $7.02M | 0.15% | +2,348+34.8% | Added |
| Investment Management Corp of Ontario | 9,206 | $7.11M | 0.09% | +2,050+28.6% | Added |
| Yousif Capital Management, LLC | 9,706 | $7.12M | 0.08% | −585−5.7% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 9,356 | $7.22M | 0.02% | +69+0.7% | Added |
| Leuthold Group, LLC | 9,439 | $7.29M | 0.79% | +3,395+56.2% | Added |
| Verition Fund Management LLC | 9,491 | $7.33M | 0.04% | −6,933−42.2% | Reduced |
| Engineers Gate Manager LP | 9,607 | $7.42M | 0.09% | −9,467−49.6% | Reduced |
| Voleon Capital Management LP | 9,610 | $7.42M | 0.16% | −16,108−62.6% | Reduced |
| Norinchukin Bank, The | 9,632 | $7.43M | 0.09% | +821+9.3% | Added |
| AIMZ Investment Advisors, LLC | 9,649 | $7.45M | 2.13% | −80−0.8% | Reduced |
| Schroder Investment Management Group | 9,711 | $7.50M | 0.01% | −16,044−62.3% | Reduced |
| Martingale Asset Management L P | 9,764 | $7.54M | 0.19% | +9,764 | New |
| Evergreen Wealth Management, LLC | 9,823 | $7.58M | 3.82% | +195+2.0% | Added |
| Summit Global Investments | 9,822 | $7.58M | 0.45% | −9,801−49.9% | Reduced |
| CIBC World Markets Inc. | 9,862 | $7.61M | 0.01% | −5,871−37.3% | Reduced |
| GWM Advisors LLC | 9,920 | $7.66M | 0.03% | +5,888+146.0% | Added |
| DCF Advisers, LLC | 10,000 | $7.72M | 2.55% | 00.0% | Unchanged |
| Beacon Investment Advisory Services, Inc. | 10,075 | $7.78M | 0.32% | −1,450−12.6% | Reduced |
| Eversept Partners, LP | 10,097 | $7.79M | 0.44% | −6,623−39.6% | Reduced |
| Rock Springs Capital Management LP | 10,100 | $7.80M | 0.40% | −1,200−10.6% | Reduced |
| Harvey Capital Management Inc | 10,198 | $7.87M | 1.68% | −1,204−10.6% | Reduced |
| Diadema Partners LP | 10,300 | $7.95M | 4.73% | −19,860−65.8% | Reduced |
| Jacobs & Co | 10,326 | $7.97M | 0.75% | +164+1.6% | Added |
| O'Shaughnessy Asset Management, LLC | 10,495 | $8.10M | 0.04% | +3,506+50.2% | Added |
| Oak Associates, Ltd | 10,560 | $8.15M | 0.49% | +70+0.7% | Added |
| Clear Harbor Asset Management, LLC | 10,564 | $8.15M | 0.56% | −73−0.7% | Reduced |
| Biondo Investment Advisors, LLC | 10,673 | $8.24M | 1.00% | +2,409+29.2% | Added |
| Swiss Life Asset Management Ltd | 10,762 | $8.31M | 0.04% | −12,896−54.5% | Reduced |
| Mutual of America Capital Management LLC | 10,803 | $8.34M | 0.09% | −221−2.0% | Reduced |
| Lazard Asset Management LLC | 10,838 | $8.37M | 0.01% | +458+4.4% | Added |
| Hunter Perkins Capital Management, LLC | 10,887 | $8.40M | 1.94% | −729−6.3% | Reduced |
| Massmutual Trust Co FSB | 11,103 | $8.57M | 0.22% | +994+9.8% | Added |
| Lido Advisors, LLC | 13,417 | $8.67M | 0.03% | +1,271+10.5% | Added |
| Janney Montgomery Scott LLC | 11,233 | $8.67M | 0.02% | −4,533−28.8% | Reduced |
| Assetmark, Inc | 11,280 | $8.71M | 0.02% | −9,539−45.8% | Reduced |
| Atria Investments LLC | 11,432 | $8.82M | 0.10% | −45−0.4% | Reduced |
| Pinebridge Investments LLC | 11,455 | $8.84M | 0.07% | +11,455 | New |
| Fideuram Asset Management (Ireland) dac | 13,111 | $8.86M | 0.71% | +13,111 | New |
| Greenwood Capital Associates LLC | 11,528 | $8.90M | 0.97% | −1,063−8.4% | Reduced |
| Slow Capital, Inc. | 11,536 | $8.90M | 1.06% | −1,002−8.0% | Reduced |
| Oregon Public Employees Retirement Fund | 11,558 | $8.92M | 0.11% | −109−0.9% | Reduced |
| Ci Investments Inc. | 11,593 | $8.95M | 0.04% | +6,999+152.4% | Added |
| Vestor Capital, LLC | 2,001 | $9.01M | 0.66% | +2,001 | New |
| OP Asset Management Ltd | 11,715 | $9.04M | 0.11% | +59+0.5% | Added |
| Calamos Advisors LLC | 11,793 | $9.10M | 0.04% | −479−3.9% | Reduced |
| Advisor Group Holdings, Inc. | 11,799 | $9.11M | 0.01% | −2,937−19.9% | Reduced |
| Banque Pictet & Cie SA | 11,822 | $9.13M | 0.09% | +1,234+11.7% | Added |
| Colony Group, LLC | 11,906 | $9.19M | 0.01% | +2,754+30.1% | Added |
| Thompson Siegel & Walmsley LLC | 11,907 | $9.19M | 0.15% | −175−1.4% | Reduced |
| JustInvest LLC | 11,973 | $9.24M | 0.09% | +901+8.1% | Added |
| Louisiana State Employees Retirement System | 12,000 | $9.26M | 0.16% | −900−7.0% | Reduced |
| Sterling Capital Management LLC | 12,035 | $9.29M | 0.15% | +8,441+234.9% | Added |
| ADAR1 Capital Management, LLC | 12,051 | $9.30M | 0.70% | −3,649−23.2% | Reduced |
| Beacon Pointe Advisors, LLC | 12,064 | $9.31M | 0.07% | −147−1.2% | Reduced |
| Marietta Wealth Management, LLC | 12,160 | $9.39M | 1.09% | +135+1.1% | Added |
| Avanza Fonder AB | 12,187 | $9.41M | 0.24% | +1,590+15.0% | Added |
| Anchor Capital Advisors LLC | 12,499 | $9.65M | 0.28% | +702+6.0% | Added |
| Capital International Inc | 12,503 | $9.65M | 0.08% | −24,867−66.5% | Reduced |
| Jane Street Group, LLC | 12,621 | $9.74M | 0.01% | −84,089−86.9% | Reduced |
| NorthCrest Asset Manangement, LLC | 12,782 | $9.76M | 0.22% | +886+7.4% | Added |
| Profund Advisors LLC | 12,660 | $9.77M | 0.30% | +825+7.0% | Added |
| RK Asset Management, LLC | 12,660 | $9.77M | 9.22% | +14+0.1% | Added |
| Vega Investment Solutions | 12,688 | $9.79M | 1.56% | +12,688 | New |
| Public Sector Pension Investment Board | 12,752 | $9.84M | 0.03% | +4,373+52.2% | Added |
| Prime Capital Investment Advisors, LLC | 12,783 | $9.87M | 0.12% | +309+2.5% | Added |
| Summit Financial, LLC | 12,784 | $9.87M | 0.14% | +42+0.3% | Added |
| Walleye Trading LLC | 12,872 | $9.94M | 0.16% | +7,374+134.1% | Added |
| Elo Mutual Pension Insurance Co | 12,961 | $10.0M | 0.15% | −470−3.5% | Reduced |
| South Dakota Investment Council | 12,962 | $10.0M | 0.19% | +160+1.2% | Added |
| PBU - The Pension Fund of Early Childhood & Youth Educators | 13,213 | $10.2M | 0.15% | +13,213 | New |
| Public Employees Retirement Association of Colorado | 13,423 | $10.4M | 0.04% | −101−0.7% | Reduced |
| Vontobel Holding Ltd. | 13,543 | $10.5M | 0.03% | +3,180+30.7% | Added |
| Eurizon Capital SGR S.p.A. | 13,565 | $10.5M | 0.03% | +13,565 | New |
| Capital International Ltd | 13,610 | $10.5M | 0.37% | −14,302−51.2% | Reduced |
| Vinva Investment Management Ltd | 13,890 | $10.8M | 0.13% | +5,115+58.3% | Added |
| Bellevue Group AG | 13,928 | $10.8M | 0.20% | −1,129−7.5% | Reduced |
| Fagan Associates, Inc. | 13,931 | $10.8M | 1.43% | −47−0.3% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 14,057 | $10.9M | 0.09% | −184−1.3% | Reduced |
| Ossiam | 14,690 | $11.3M | 0.23% | +1,666+12.8% | Added |
| Charter Trust Co | 14,696 | $11.3M | 0.66% | +2,416+19.7% | Added |
| M. Kulyk & Associates, LLC | 14,804 | $11.4M | 2.18% | +431+3.0% | Added |
| Ensign Peak Advisors, Inc | 14,849 | $11.5M | 0.02% | −16,314−52.4% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 14,900 | $11.5M | 0.09% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 14,924 | $11.5M | 0.04% | +2,284+18.1% | Added |
| New York Life Investment Management LLC | 15,087 | $11.6M | 0.10% | +1,144+8.2% | Added |
| Mercer Global Advisors Inc | 15,136 | $11.7M | 0.02% | +2,796+22.7% | Added |
| Toroso Investments, LLC | 15,401 | $11.9M | 0.05% | −176−1.1% | Reduced |
| Fifth Third Bancorp | 15,425 | $11.9M | 0.04% | +3,362+27.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 15,570 | $12.0M | 0.10% | −1,221−7.3% | Reduced |
| Picton Mahoney Asset Management | 15,584 | $12.0M | 0.13% | +7,349+89.2% | Added |