44 institutions reported holding $238.0M of REGENERON PHARMACEUTICALS (REGN) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($152.7M), ATWOOD & PALMER INC ($26.4M), Czech National Bank ($17.7M), PensionDanmark Pensionsforsikringsaktieselskab ($15.1M), MassMutual Private Wealth & Trust, FSB ($6.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $152.7M | 244,927 | Added |
| 2 | ATWOOD & PALMER INC | $26.4M | 42,332 | Added |
| 3 | Czech National Bank | $17.7M | 28,442 | Added |
| 4 | PensionDanmark Pensionsforsikringsaktieselskab | $15.1M | 24,190 | New |
| 5 | MassMutual Private Wealth & Trust, FSB | $6.0M | 9,576 | Trimmed |
| 6 | Victrix Investment Advisors | $3.0M | 4,766 | Hold |
| 7 | BDF-GESTION | $2.8M | 1,524 | Trimmed |
| 8 | Palouse Capital Management, Inc. | $1.5M | 2,479 | Added |
| 9 | HARBOR INVESTMENT ADVISORY, LLC | $1.5M | 2,382 | Trimmed |
| 10 | GAMMA Investing LLC | $1.3M | 2,067 | Trimmed |
| 11 | Grove Bank & Trust | $1.2M | 2,004 | Trimmed |
| 12 | Central Pacific Bank - Trust Division | $880,438 | 1,412 | Added |
| 13 | Avior Wealth Management, LLC | $846,821 | 1,358 | Trimmed |
| 14 | Valeo Financial Advisors, LLC | $803,623 | 1,289 | Trimmed |
| 15 | MOODY NATIONAL BANK TRUST DIVISION | $794,390 | 1,274 | Trimmed |
| 16 | Trust Asset Management LLC | $588,454 | 1,127 | Trimmed |
| 17 | Bangor Savings Bank | $534,374 | 857 | Hold |
| 18 | Gradient Investments LLC | $515,668 | 827 | Trimmed |
| 19 | Value Investment Professionals, LLC | $485,328 | 778 | Added |
| 20 | BEACON INVESTMENT ADVISORY SERVICES, INC. | $472,020 | 757 | Trimmed |
| 21 | Hennion & Walsh Asset Management, Inc. | $445,831 | 715 | Added |
| 22 | Cooper Financial Group | $433,074 | 695 | Trimmed |
| 23 | ABNER HERRMAN & BROCK LLC | $347,000 | 557 | Hold |
| 24 | Flower City Capital | $311,770 | 500 | New |
| 25 | Chesley Taft & Associates LLC | $273,734 | 439 | Added |
Source: SEC Form 13F filings · as of 2026-06-30