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SEC data last refreshed 22 Aug 2026, 17:12 UTC
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Regeneron Pharmaceuticals
REGN
Healthcare
NMS
$79.2B
REGN SEC filings last scanned 22 Aug 2026, 16:43 UTC
CEO Timeline
Leonard Schleifer, M.D., Ph.D.
Current
CEO since at least Mar 2005 (no leadership change found in filings)
Source: 10-K
Regeneron Pharmaceuticals (REGN) CEO History | CEO Tracker