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 |
|---|---|---|---|---|---|
| Fagan Associates, Inc. | 13,931 | $10.8M | 1.43% | −47−0.3% | Reduced |
| Bellevue Group AG | 13,928 | $10.8M | 0.20% | −1,129−7.5% | Reduced |
| Vinva Investment Management Ltd | 13,890 | $10.8M | 0.13% | +5,115+58.3% | Added |
| Capital International Ltd | 13,610 | $10.5M | 0.37% | −14,302−51.2% | Reduced |
| Eurizon Capital SGR S.p.A. | 13,565 | $10.5M | 0.03% | +13,565 | New |
| Vontobel Holding Ltd. | 13,543 | $10.5M | 0.03% | +3,180+30.7% | Added |
| Public Employees Retirement Association of Colorado | 13,423 | $10.4M | 0.04% | −101−0.7% | Reduced |
| PBU - The Pension Fund of Early Childhood & Youth Educators | 13,213 | $10.2M | 0.15% | +13,213 | New |
| South Dakota Investment Council | 12,962 | $10.0M | 0.19% | +160+1.2% | Added |
| Elo Mutual Pension Insurance Co | 12,961 | $10.0M | 0.15% | −470−3.5% | Reduced |
| Walleye Trading LLC | 12,872 | $9.94M | 0.16% | +7,374+134.1% | Added |
| Summit Financial, LLC | 12,784 | $9.87M | 0.14% | +42+0.3% | Added |
| Prime Capital Investment Advisors, LLC | 12,783 | $9.87M | 0.12% | +309+2.5% | Added |
| Public Sector Pension Investment Board | 12,752 | $9.84M | 0.03% | +4,373+52.2% | Added |
| Vega Investment Solutions | 12,688 | $9.79M | 1.56% | +12,688 | New |
| RK Asset Management, LLC | 12,660 | $9.77M | 9.22% | +14+0.1% | Added |
| Profund Advisors LLC | 12,660 | $9.77M | 0.30% | +825+7.0% | Added |
| NorthCrest Asset Manangement, LLC | 12,782 | $9.76M | 0.22% | +886+7.4% | Added |
| Jane Street Group, LLC | 12,621 | $9.74M | 0.01% | −84,089−86.9% | Reduced |
| Capital International Inc | 12,503 | $9.65M | 0.08% | −24,867−66.5% | Reduced |
| Anchor Capital Advisors LLC | 12,499 | $9.65M | 0.28% | +702+6.0% | Added |
| Avanza Fonder AB | 12,187 | $9.41M | 0.24% | +1,590+15.0% | Added |
| Marietta Wealth Management, LLC | 12,160 | $9.39M | 1.09% | +135+1.1% | Added |
| Beacon Pointe Advisors, LLC | 12,064 | $9.31M | 0.07% | −147−1.2% | Reduced |
| ADAR1 Capital Management, LLC | 12,051 | $9.30M | 0.70% | −3,649−23.2% | Reduced |
| Sterling Capital Management LLC | 12,035 | $9.29M | 0.15% | +8,441+234.9% | Added |
| Louisiana State Employees Retirement System | 12,000 | $9.26M | 0.16% | −900−7.0% | Reduced |
| JustInvest LLC | 11,973 | $9.24M | 0.09% | +901+8.1% | Added |
| Thompson Siegel & Walmsley LLC | 11,907 | $9.19M | 0.15% | −175−1.4% | Reduced |
| Colony Group, LLC | 11,906 | $9.19M | 0.01% | +2,754+30.1% | Added |
| Banque Pictet & Cie SA | 11,822 | $9.13M | 0.09% | +1,234+11.7% | Added |
| Advisor Group Holdings, Inc. | 11,799 | $9.11M | 0.01% | −2,937−19.9% | Reduced |
| Calamos Advisors LLC | 11,793 | $9.10M | 0.04% | −479−3.9% | Reduced |
| OP Asset Management Ltd | 11,715 | $9.04M | 0.11% | +59+0.5% | Added |
| Vestor Capital, LLC | 2,001 | $9.01M | 0.66% | +2,001 | New |
| Ci Investments Inc. | 11,593 | $8.95M | 0.04% | +6,999+152.4% | Added |
| Oregon Public Employees Retirement Fund | 11,558 | $8.92M | 0.11% | −109−0.9% | Reduced |
| Slow Capital, Inc. | 11,536 | $8.90M | 1.06% | −1,002−8.0% | Reduced |
| Greenwood Capital Associates LLC | 11,528 | $8.90M | 0.97% | −1,063−8.4% | Reduced |
| Fideuram Asset Management (Ireland) dac | 13,111 | $8.86M | 0.71% | +13,111 | New |
| Pinebridge Investments LLC | 11,455 | $8.84M | 0.07% | +11,455 | New |
| Atria Investments LLC | 11,432 | $8.82M | 0.10% | −45−0.4% | Reduced |
| Assetmark, Inc | 11,280 | $8.71M | 0.02% | −9,539−45.8% | Reduced |
| Janney Montgomery Scott LLC | 11,233 | $8.67M | 0.02% | −4,533−28.8% | Reduced |
| Lido Advisors, LLC | 13,417 | $8.67M | 0.03% | +1,271+10.5% | Added |
| Massmutual Trust Co FSB | 11,103 | $8.57M | 0.22% | +994+9.8% | Added |
| Hunter Perkins Capital Management, LLC | 10,887 | $8.40M | 1.94% | −729−6.3% | Reduced |
| Lazard Asset Management LLC | 10,838 | $8.37M | 0.01% | +458+4.4% | Added |
| Mutual of America Capital Management LLC | 10,803 | $8.34M | 0.09% | −221−2.0% | Reduced |
| Swiss Life Asset Management Ltd | 10,762 | $8.31M | 0.04% | −12,896−54.5% | Reduced |
| Biondo Investment Advisors, LLC | 10,673 | $8.24M | 1.00% | +2,409+29.2% | Added |
| Clear Harbor Asset Management, LLC | 10,564 | $8.15M | 0.56% | −73−0.7% | Reduced |
| Oak Associates, Ltd | 10,560 | $8.15M | 0.49% | +70+0.7% | Added |
| O'Shaughnessy Asset Management, LLC | 10,495 | $8.10M | 0.04% | +3,506+50.2% | Added |
| Jacobs & Co | 10,326 | $7.97M | 0.75% | +164+1.6% | Added |
| Diadema Partners LP | 10,300 | $7.95M | 4.73% | −19,860−65.8% | Reduced |
| Harvey Capital Management Inc | 10,198 | $7.87M | 1.68% | −1,204−10.6% | Reduced |
| Rock Springs Capital Management LP | 10,100 | $7.80M | 0.40% | −1,200−10.6% | Reduced |
| Eversept Partners, LP | 10,097 | $7.79M | 0.44% | −6,623−39.6% | Reduced |
| Beacon Investment Advisory Services, Inc. | 10,075 | $7.78M | 0.32% | −1,450−12.6% | Reduced |
| DCF Advisers, LLC | 10,000 | $7.72M | 2.55% | 00.0% | Unchanged |
| GWM Advisors LLC | 9,920 | $7.66M | 0.03% | +5,888+146.0% | Added |
| CIBC World Markets Inc. | 9,862 | $7.61M | 0.01% | −5,871−37.3% | Reduced |
| Summit Global Investments | 9,822 | $7.58M | 0.45% | −9,801−49.9% | Reduced |
| Evergreen Wealth Management, LLC | 9,823 | $7.58M | 3.82% | +195+2.0% | Added |
| Martingale Asset Management L P | 9,764 | $7.54M | 0.19% | +9,764 | New |
| Schroder Investment Management Group | 9,711 | $7.50M | 0.01% | −16,044−62.3% | Reduced |
| AIMZ Investment Advisors, LLC | 9,649 | $7.45M | 2.13% | −80−0.8% | Reduced |
| Norinchukin Bank, The | 9,632 | $7.43M | 0.09% | +821+9.3% | Added |
| Voleon Capital Management LP | 9,610 | $7.42M | 0.16% | −16,108−62.6% | Reduced |
| Engineers Gate Manager LP | 9,607 | $7.42M | 0.09% | −9,467−49.6% | Reduced |
| Verition Fund Management LLC | 9,491 | $7.33M | 0.04% | −6,933−42.2% | Reduced |
| Leuthold Group, LLC | 9,439 | $7.29M | 0.79% | +3,395+56.2% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 9,356 | $7.22M | 0.02% | +69+0.7% | Added |
| Yousif Capital Management, LLC | 9,706 | $7.12M | 0.08% | −585−5.7% | Reduced |
| Investment Management Corp of Ontario | 9,206 | $7.11M | 0.09% | +2,050+28.6% | Added |
| Callan Family Office, LLC | 9,092 | $7.02M | 0.15% | +2,348+34.8% | Added |
| Renaissance Technologies LLC | 9,082 | $7.01M | 0.01% | −266,080−96.7% | Reduced |
| Legato Capital Management LLC | 8,803 | $6.79M | 0.58% | −1,400−13.7% | Reduced |
| UniSuper Management Pty Ltd | 8,639 | $6.67M | 0.04% | −920−9.6% | Reduced |
| Apriem Advisors | 8,584 | $6.63M | 0.61% | −64−0.7% | Reduced |
| Simplex Trading, LLC | 8,559 | $6.61M | 0.19% | +2,445+40.0% | Added |
| Stratos Wealth Advisors, LLC | 8,473 | $6.54M | 0.32% | +481+6.0% | Added |
| Fiduciary Trust Co | 8,466 | $6.53M | 0.07% | +615+7.8% | Added |
| Game Creek Capital, LP | 8,435 | $6.51M | 2.47% | +3,510+71.3% | Added |
| Cardinal Capital Management | 8,406 | $6.49M | 0.86% | −25−0.3% | Reduced |
| Dana Investment Advisors, Inc. | 8,395 | $6.48M | 0.19% | +3,082+58.0% | Added |
| Sovran Advisors, LLC | 8,619 | $6.39M | 0.54% | −2,519−22.6% | Reduced |
| Teachers Retirement System of the State of Kentucky | 8,244 | $6.36M | 0.05% | 00.0% | Unchanged |
| Founders Capital Management, LLC | 8,203 | $6.33M | 0.94% | −74−0.9% | Reduced |
| Wealthfront Advisers LLC | 8,142 | $6.28M | 0.01% | +2,202+37.1% | Added |
| Ellerson Group Inc | 8,035 | $6.20M | 4.20% | −67−0.8% | Reduced |
| Tang Capital Management LLC | 8,000 | $6.17M | 0.31% | −2,000−20.0% | Reduced |
| Harvest Fund Management Co., Ltd | 7,954 | $6.14M | 0.23% | +1,561+24.4% | Added |
| Perigon Wealth Management, LLC | 7,836 | $6.05M | 0.11% | +1,135+16.9% | Added |
| Hudson Capital Management LLC | 7,807 | $6.03M | 1.51% | +410+5.5% | Added |
| Motley Fool Wealth Management, LLC | 7,792 | $6.01M | 0.47% | −1,830−19.0% | Reduced |
| Atlas Capital Advisors LLC | 7,758 | $5.99M | 0.67% | +7,758 | New |
| Thrivent Financial for Lutherans | 7,749 | $5.98M | 0.01% | +214+2.8% | Added |
| Generali Asset Management SPA SGR | 7,666 | $5.92M | 0.12% | −4,354−36.2% | Reduced |