Brian Birchler

Companies

• IONIS PHARMACEUTICALS INCEVP, Corp and Development Ops Mar 24, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• IPIONIS PHARMACEUTICALS INC IONS102,883 shares²$4.5M at $44.12Aug 31, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 31, 2026Other 58 shares at $51.31 of IONIS PHARMACEUTICALS INC²
• Apr 16, 2026Sold 973 shares at $75.04 of IONIS PHARMACEUTICALS INC³
• Apr 15, 2026Exercised options 1,875 shares of IONIS PHARMACEUTICALS INC³
• Feb 27, 2026Other 351 shares at $48.87 of IONIS PHARMACEUTICALS INC⁴
• Jan 30, 2026Sold 6,179 shares at $83.03 of IONIS PHARMACEUTICALS INC⁵
• Jan 29, 2026Granted 11,991 shares of IONIS PHARMACEUTICALS INC⁵
• Jan 16, 2026Sold 8,480 shares at $75.11 of IONIS PHARMACEUTICALS INC⁶
• Jan 15, 2026Exercised options 20,089 shares of IONIS PHARMACEUTICALS INC⁶
• Nov 6, 2025Sold 8,000 shares at $76.17 of IONIS PHARMACEUTICALS INC⁷
• Oct 15, 2025Sold 12,425 shares at $72.23 of IONIS PHARMACEUTICALS INC⁸
• Oct 15, 2025Exercised options 12,425 shares at $53.77 of IONIS PHARMACEUTICALS INC⁸
• Oct 14, 2025Sold 11,475 shares at $72.03 of IONIS PHARMACEUTICALS INC⁸
• Oct 14, 2025Exercised options 11,475 shares at $53.77 of IONIS PHARMACEUTICALS INC⁸
• Aug 29, 2025Other 166 shares at $27.71 of IONIS PHARMACEUTICALS INC⁹
• Apr 16, 2025Sold 680 shares at $28.37 of IONIS PHARMACEUTICALS INC¹⁰
• Apr 15, 2025Exercised options 1,875 shares of IONIS PHARMACEUTICALS INC¹⁰
• Feb 28, 2025Other 414 shares at $28.21 of IONIS PHARMACEUTICALS INC¹¹
• Jan 16, 2025Sold 5,400 shares at $32.70 of IONIS PHARMACEUTICALS INC¹²
• Jan 15, 2025Exercised options 14,283 shares of IONIS PHARMACEUTICALS INC¹²
• Aug 30, 2024Other 12 shares at $38.64 of IONIS PHARMACEUTICALS INC¹³
• Apr 16, 2024Sold 905 shares at $41.66 of IONIS PHARMACEUTICALS INC¹⁴
• Apr 15, 2024Exercised options 1,875 shares of IONIS PHARMACEUTICALS INC¹⁴
• Feb 29, 2024Other 604 shares at $34.43 of IONIS PHARMACEUTICALS INC¹⁵
• Jan 17, 2024Sold 4,497 shares at $50.42 of IONIS PHARMACEUTICALS INC¹⁶
• Jan 16, 2024Exercised options 12,080 shares of IONIS PHARMACEUTICALS INC¹⁶