Birchler Brian - Insider Non-Derivative Transactions at IONIS PHARMACEUTICALS INC (IONS) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Nov 6, 2025, Birchler Brian's relationship to IONIS PHARMACEUTICALS INC (IONS) is Officer (EVP, Corp and Development Ops), and currently has 48,826 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other IONS insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Birchler Brian - Insider Non-Derivative Transactions of IONS Common Stock

Birchler Brian - Insider Non-Derivative Transactions at IONS

Items per page:

0 of 0

Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Nov 7, 2025	Sell -- (Common Stock)	8000	76.17	48826
Oct 16, 2025	Sell -- (Common Stock)	12425	72.23	56826
Oct 16, 2025	M -- (Common Stock)	12425	53.77	69251
Oct 15, 2025	Sell -- (Common Stock)	11475	72.03	56826
Oct 15, 2025	M -- (Common Stock)	11475	53.77	68301
Aug 30, 2025	J -- (Common Stock)	166	27.71	56826
Apr 17, 2025	Sell -- (Common Stock)	680	28.37	56660
Apr 16, 2025	M -- (Common Stock)	1875	0	57340
Mar 1, 2025	J -- (Common Stock)	414	28.21	55465
Jan 17, 2025	Sell -- (Common Stock)	5400	32.7	55051
Jan 16, 2025	M -- (Common Stock)	14283	0	60451
Aug 31, 2024	J -- (Common Stock)	12	38.64	46168
Apr 17, 2024	Sell -- (Common Stock)	905	41.66	46156
Apr 16, 2024	M -- (Common Stock)	1875	0	47061
Mar 1, 2024	J -- (Common Stock)	604	34.43	45186
Jan 18, 2024	Sell -- (Common Stock)	4497	50.42	44582
Jan 17, 2024	M -- (Common Stock)	12080	0	49079
Dec 29, 2023	F -- (Common Stock)	11029	50.5	36999
Dec 29, 2023	M -- (Common Stock)	11500	47.34	48028
Apr 19, 2023	Sell -- (Common Stock)	672	36.5	36528
Apr 18, 2023	M -- (Common Stock)	1875	0	37200