Ionis Pharmaceuticals Inc

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC IONS

Report date

3/31/2026

Quarter

2026 Q1

Filed

5/15/2026

Shares

1,404,033

Value ($000)

105,429

Weight

2.8%

2025 Q3 - 2026 Q1 (3 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
2026 Q1	5/15/2026	105,429	2.8%	1,404,033	3/31/2026
2025 Q4	2/17/2026	115,715	2.4%	1,462,706	12/31/2025
2025 Q3	11/14/2025	49,065	1.0%	750,000	9/30/2025