Ionis Pharmaceuticals Inc

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ IONS

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/22/2026

Shares

812,747

Value ($000)

64,296

Weight

0.0%

2023 Q1 - 2025 Q4 (8 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	1/22/2026	64,296	0.0%	812,747	12/31/2025
2025 Q3	10/29/2025	56,431	0.0%	862,593	9/30/2025
2025 Q2	8/8/2025	20,513	0.0%	519,184	6/30/2025
2024 Q1	5/14/2024	242	0.0%	5,580	3/31/2024
2023 Q4	2/8/2024	283	0.0%	5,592	12/31/2023
2023 Q3	11/8/2023	262	0.0%	5,769	9/30/2023
2023 Q2	8/9/2023	1,088	0.0%	26,529	6/30/2023
2023 Q1	5/10/2023	970	0.0%	27,153	3/31/2023