Regeneron Pharmaceuticals, Inc.
REGNLast close · Oct 16, 2026790.74−5.60 (−0.70%)
Market cap$81.4B
Of the 85 managers this site tracks, 4 held Regeneron (REGN) at the end of Q2 2026, their latest 13Fs. The largest position by value was Dodge & Cox's, $3.0B; Mason Hawkins's ($95.0M) and Harry Burn's ($79.2M) follow. No Schedule 13D or 13G is on file for REGN from the activists and large holders the site follows.
Superinvestors holding REGN
| Manager | Firm | Quarter | Shares | Value |
|---|---|---|---|---|
| Dodge & Cox | Dodge & Cox | Q2 2026 | 5M | $3.0B |
| Mason Hawkins | Southeastern Asset Management Inc | Q2 2026 | 152,322 | $95.0M |
| Harry Burn | Sound Shore Management Inc | Q2 2026 | 126,994 | $79.2M |
| Bridgewater | Bridgewater Associates, LP | Q2 2026 | 51,333 | $32.0M |
13D/13G are SEC beneficial-ownership disclosures, triggered only above 5%; a 13F is a quarterly snapshot filed up to 45 days after quarter end. Superinvestor names link to their full portfolios under Investors.