REGN
Regeneron Pharmaceuticals
4 of the 83 super-investors we track hold REGN, worth a combined $3.25B per their latest 13F filings. The largest position: Mason Hawkins at 5.0% of their portfolio. No cohort buying or selling was filed on the name this quarter. Conviction score: 30 of 100 (how strongly the cohort backs it) — ranked #359 of 742 stocks.
Why super-investors own REGN
REGN is held by 4 super-investors in our cohort, with a combined position value of $3.2B. The highest-conviction owner is Mason Hawkins at 5.0% of their portfolio.
AI-synthesized from 13F filings. Not investment advice.
Cohort owners over time
2016Q3 → 2026Q2How many of the cohort members held this stock each quarter.
Owners (4) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | Dodge & Cox Funds | 1.6% | 19q | $3.04B | 4,871,137 |
| 2 | Mason Hawkins | 5.0% | 6q | $95M | 152,322 |
| 3 | Harry Burn | 2.4% | 4q | $79M | 126,994 |
| 4 | Joel Greenblatt | <0.1% | 39q | $36M | 57,604 |
Owners of REGN also hold
Congress is trading REGN
Congress tracker →- Gilbert Cisnerossold$1,001 - $15,000 · 2026-05-15
- Julia Letlowbought$1,001 - $15,000 · 2026-02-12
- Gilbert Cisnerosbought$1,001 - $15,000 · 2025-11-18
- Rob Bresnahanbought$1,001 - $15,000 · 2025-05-15
- Byron Donaldssold$1,001 - $15,000 · 2025-04-10
- Byron Donaldssold$1,001 - $15,000 · 2025-04-10
STOCK Act periodic transaction reports; amounts are disclosed ranges. Who files late →
Long US equity 13F-HR filings only. CUSIP 75886F107. Not investment advice.