Berthelsen Spencer R

Berthelsen Spencer R is listed in filings as Director at Ionis Pharmaceuticals Inc. This profile follows SEC Form 4 activity through Jun 3, 2026, including sale activity. Recent filings connect the profile to Ionis Pharmaceuticals Inc (IONS). The current snapshot covers public activity from Jun 3, 2026. Reported amounts are shown as $605.4K to $195.4K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.