Birchler Brian 4

What Happened
Brian Birchler, EVP, Corporate and Development Operations at Ionis Pharmaceuticals (IONS), acquired 351 shares on February 27, 2026. The shares were purchased at $48.87 per share for a total cost of $17,152 under Ionis’ Employee Stock Purchase Plan (ESPP). This was a purchase (insider buy), which retail investors often view as a more informative signal than routine sales, though motivations are not disclosed.

Key Details

• Transaction date and price: 2026-02-27 — 351 shares at $48.87 each. Transaction code reported as “J” (other acquisition/disposition) and footnoted as ESPP purchase.
• Total value: approximately $17,152.
• Shares owned after transaction: not specified in the reported Form 4.
• Footnote: Shares were purchased under the Ionis Pharmaceuticals, Inc. Amended and Restated 2000 Employee Stock Purchase Plan and may not be sold until August 27, 2026 (six-month sale restriction).
• Filing timeliness: Report filed 2026-03-03 for a 2026-02-27 transaction — filed within the Form 4 two-business-day window (timely).

Context
ESPP purchases are typically payroll-deduction purchases and can reflect routine employee participation in company plans; they don’t necessarily indicate a special, discretionary market bet. Because these shares are restricted from sale until August 27, 2026, they are subject to holding-period limits described in the filing.