Regeneron Pharmaceuticals (REGN)
Showing Closing Date Range from Oct 9 to Nov 6, 2026 compared to Sep 10 to Oct 8, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:regeneron.com
Current Period Close
$904.35
Oct 09, 2026 - Nov 06, 2026
Previous Period Close
$739.57
Sep 10, 2026 - Oct 08, 2026
Net Comparison Delta
+$164.78 (+22.28%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(21 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 06, 2026 | $904.35 | - | - | - |
| Nov 05, 2026 | $902.90 | Oct 08, 2026 | $739.57 | +22.08% |
| Nov 04, 2026 | $930.67 | Oct 07, 2026 | $742.12 | +25.41% |
| Nov 03, 2026 | $973.36 | Oct 06, 2026 | $738.72 | +31.76% |
| Nov 02, 2026 | $961.26 | Oct 05, 2026 | $726.47 | +32.32% |
| Oct 30, 2026 | $927.89 | Oct 02, 2026 | $735.20 | +26.21% |
| Oct 29, 2026 | $818.77 | Sep 30, 2026 | $758.27 | +7.98% |
| Oct 28, 2026 | $813.27 | Sep 29, 2026 | $750.51 | +8.36% |
| Oct 27, 2026 | $816.10 | Sep 28, 2026 | $752.25 | +8.49% |
| Oct 26, 2026 | $807.67 | Sep 25, 2026 | $788.04 | +2.49% |
| Oct 23, 2026 | $805.02 | Sep 24, 2026 | $796.02 | +1.13% |
| Oct 22, 2026 | $819.09 | Sep 23, 2026 | $801.82 | +2.15% |
| Oct 21, 2026 | $805.67 | Sep 22, 2026 | $803.90 | +0.22% |
| Oct 20, 2026 | $807.48 | Sep 21, 2026 | $798.17 | +1.17% |
| Oct 19, 2026 | $782.04 | Sep 18, 2026 | $784.85 | -0.36% |
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