North Star Asset Management’s Ionis Pharmaceuticals IONS Stock Holding History

North Star Asset Management’s Portfolio IONS Stock Details IONS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.25M	Hold	16,610	–	–	0.05%	177
2025 Q4	$1.31M	Hold	16,610	–	–	0.05%	171
2025 Q3	$1.09M	Hold	16,610	–	–	0.04%	184
2025 Q2	$656K	Buy	16,610 +3,000	+22%	+$98.2K	0.03%	209
2025 Q1	$411K	Sell	13,610 -30	-0.2%	-$982	0.02%	233
2024 Q4	$477K	Hold	13,640	–	–	0.02%	220
2024 Q3	$546K	Hold	13,640	–	–	0.02%	213
2024 Q2	$650K	Hold	13,640	–	–	0.03%	192
2024 Q1	$591K	Sell	13,640 -10	-0.1%	-$477	0.03%	200
2023 Q4	$691K	Buy	13,650 +10	+0.1%	+$479	0.04%	185
2023 Q3	$619K	Hold	13,640	–	–	0.04%	189
2023 Q2	$560K	Sell	13,640 -40	-0.3%	-$1.54K	0.03%	194
2023 Q1	$489K	Hold	13,680	–	–	0.03%	205
2022 Q4	$517K	Hold	13,680	–	–	0.03%	203
2022 Q3	$605K	Hold	13,680	–	–	0.04%	180
2022 Q2	$506K	Hold	13,680	–	–	0.03%	191
2022 Q1	$507K	Hold	13,680	–	–	0.03%	209
2021 Q4	$416K	Hold	13,680	–	–	0.02%	227
2021 Q3	$459K	Sell	13,680 -73	-0.5%	-$2.75K	0.03%	216
2021 Q2	$549K	Hold	13,753	–	–	0.03%	203
2021 Q1	$618K	Sell	13,753 -20	-0.1%	-$1.11K	0.04%	186
2020 Q4	$779K	Hold	13,773	–	–	0.05%	163
2020 Q3	$654K	Buy	13,773 +73	+0.5%	+$4.05K	0.05%	166
2020 Q2	$808K	Hold	13,700	–	–	0.06%	148
2020 Q1	$648K	Sell	13,700 -1,500	-10%	-$83.6K	0.06%	152
2019 Q4	$918K	Hold	15,200	–	–	0.07%	154
2019 Q3	$911K	Hold	15,200	–	–	0.07%	151
2019 Q2	$977K	Hold	15,200	–	–	0.08%	151
2019 Q1	$1.23M	Hold	15,200	–	–	0.1%	134
2018 Q4	$822K	Hold	15,200	–	–	0.08%	152
2018 Q3	$784K	Hold	15,200	–	–	0.06%	168
2018 Q2	$633K	Hold	15,200	–	–	0.05%	182
2018 Q1	$670K	Hold	15,200	–	–	0.06%	172
2017 Q4	$765K	Buy	+15,200	New	+$834K	0.07%	163

Other funds holding IONS

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

North Star Asset Management's IONS Position: Q1 2026 in Review

North Star Asset Management held its Ionis Pharmaceuticals (IONS) position steady in Q1 2026 at 16,610 shares worth $1.25M. The position accounts for 0.05% of the portfolio, ranked #177.

North Star Asset Management first reported a position in IONS in Q4 2017 and has held it in 34 quarters since. The position peaked at $1.31M in Q4 2025. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

North Star Asset Management held 16,610 shares of Ionis Pharmaceuticals worth $1.25M as of Q1 2026.
North Star Asset Management left its Ionis Pharmaceuticals share count unchanged in Q1 2026.
Ionis Pharmaceuticals made up 0.05% of North Star Asset Management's portfolio in Q1 2026, its #177 holding.
North Star Asset Management first reported a position in Ionis Pharmaceuticals in Q4 2017 and has held it in 34 quarters since.
North Star Asset Management's Ionis Pharmaceuticals position peaked at $1.31M in Q4 2025.
493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on North Star Asset Management's 13F filing for Q1 2026, filed 6 May 2026.