Caption Management’s Ionis Pharmaceuticals IONS Stock Holding History

Caption 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	–	Sell	-85,000	Closed	-$6.72M	–	1793
2025 Q4	$6.72M	Buy	85,000 +15,000	+21%	+$1.13M	0.05%	426
2025 Q3	$4.58M	Sell	70,000 -550,700	-89%	-$26.9M	0.04%	523
2025 Q2	$24.5M	Buy	620,700 +570,700	+1,141%	+$18.7M	0.27%	68
2025 Q1	$1.51M	Buy	+50,000	New	+$1.64M	0.01%	782
2024 Q4	–	Sell	-117,000	Closed	-$4.69M	–	1636
2024 Q3	$4.69M	Sell	117,000 -212,300	-64%	-$9.88M	0.07%	316
2024 Q2	$15.7M	Buy	+329,300	New	+$13.5M	0.24%	87
2023 Q4	–	Sell	-30,000	Closed	-$1.36M	–	1501
2023 Q3	$1.36M	Sell	30,000 -99,000	-77%	-$4.08M	0.02%	687
2023 Q2	$5.29M	Buy	129,000 +45,000	+54%	+$1.73M	0.09%	261
2023 Q1	$3M	Buy	84,000 +41,500	+98%	+$1.56M	0.06%	346
2022 Q4	$1.61M	Sell	42,500 -37,500	-47%	-$1.58M	0.03%	616
2022 Q3	$3.54M	Sell	80,000 -120,000	-60%	-$5.06M	0.05%	458
2022 Q2	$7.4M	Buy	+200,000	New	+$7.54M	0.1%	258
2022 Q1	–	Sell	-57,500	Closed	-$1.75M	–	1690
2021 Q4	$1.75M	Hold	57,500	–	–	0.02%	834
2021 Q3	$1.93M	Sell	57,500 -32,500	-36%	-$1.22M	0.02%	772
2021 Q2	$3.59M	Buy	90,000 +60,000	+200%	+$2.35M	0.05%	479
2021 Q1	$1.35M	Sell	30,000 -27,500	-48%	-$1.53M	0.03%	616
2020 Q4	$3.25M	Buy	+57,500	New	+$2.87M	0.07%	317
2019 Q3	–	Sell	-40,000	Closed	-$2.57M	–	796
2019 Q2	$2.57M	Buy	+40,000	New	+$2.83M	0.13%	207

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

Caption Management's IONS Position: Q1 2026 in Review

Caption Management opened a new position in Ionis Pharmaceuticals (IONS) in Q1 2026: 15,591 shares worth $1.17M. The stake represents 0.01% of the portfolio and ranks #976 among its holdings. This is a return to the name: Caption Management previously reported a position in IONS as recently as Q4 2024.

Caption Management first reported a position in IONS in Q2 2020 and has held it in 12 quarters since. The position peaked at $9.33M in Q2 2020. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

Caption Management held 15,591 shares of Ionis Pharmaceuticals worth $1.17M as of Q1 2026.
Ionis Pharmaceuticals was a new Caption Management position in Q1 2026.
Ionis Pharmaceuticals made up 0.01% of Caption Management's portfolio in Q1 2026, its #976 holding.
Caption Management first reported a position in Ionis Pharmaceuticals in Q2 2020 and has held it in 12 quarters since.
Caption Management's Ionis Pharmaceuticals position peaked at $9.33M in Q2 2020.
493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on Caption Management's 13F filing for Q1 2026, filed 15 May 2026.