REGN
Regeneron Pharmaceuticals Inc.Stock · Healthcare$654.27+$29.55 (+4.73%)as of market close, Jul 2, 2026
REGN weekly returns
Regeneron Pharmaceuticals Inc. has averaged 0.53% per week, positive in 50% of weeks. Week-by-week returns for Regeneron Pharmaceuticals Inc. (REGN) below, through July 2, 2026 — the table lists the most recent weeks; the bar chart plots the last 2 years.
Average week
+0.5%
1839 weeks
Best week
+110.9%
Feb 25, 2000
Worst week
-61.2%
Apr 4, 2003
Positive weeks
50%
of all weeks
Regeneron Pharmaceuticals Inc. weekly returns#
| Week ending | Path | Total return |
|---|---|---|
| Jul 2, 2026 | +3.4% | |
| Jun 26, 2026 | +3.8% | |
| Jun 18, 2026 | -0.4% | |
| Jun 12, 2026 | -3.7% | |
| Jun 5, 2026 | +3.4% | |
| May 29, 2026 | -3.8% | |
| May 22, 2026 | -8.4% | |
| May 15, 2026 | -2.3% | |
| May 8, 2026 | +1.9% | |
| May 1, 2026 | -6.7% | |
| Apr 24, 2026 | +0.1% | |
| Apr 17, 2026 | +0.2% |
Weekly total return (since Jul 12, 2024)
-15%-10%-5%+0%+5%+10%+15%
20252026
Methodology#
Weekly returns are total returns (dividends reinvested), computed from REGN's split- and dividend-adjusted weekly (ISO week) closes. The table shows the most recent 260 weeks and the bar chart the most recent 104. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
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FAQ
- What is Regeneron Pharmaceuticals Inc.'s average weekly return?
- Regeneron Pharmaceuticals Inc. (REGN) has averaged about 0.53% per week, positive in roughly 50% of weeks. The best week was Feb 25, 2000 (+110.9%) and the worst was Apr 4, 2003 (-61.2%).