Sphera Funds Management’s Ionis Pharmaceuticals IONS Stock Holding History

Sphera Funds 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
2025 Q2	–	Sell	-63,821	Closed	-$1.93M	–	120
2025 Q1	$1.93M	Hold	63,821	–	–	0.44%	70
2024 Q4	$2.23M	Hold	63,821	–	–	0.4%	77
2024 Q3	$2.56M	Sell	63,821 -76,417	-54%	-$3.56M	0.41%	71
2024 Q2	$6.68M	Buy	+140,238	New	+$5.75M	0.91%	36
2021 Q4	–	Sell	-22,000	Closed	-$738K	–	111
2021 Q3	$738K	Buy	+22,000	New	+$829K	0.06%	109
2021 Q2	–	Sell	-145,476	Closed	-$5.7M	–	154
2021 Q1	$6.54M	Buy	145,476 +53,676	+58%	+$2.99M	0.5%	63
2020 Q4	$5.19M	Buy	+91,800	New	+$4.57M	0.46%	66
2016 Q2	–	Sell	-40,000	Closed	-$1.62M	–	103
2016 Q1	$1.62M	Sell	40,000 -41,200	-51%	-$1.67M	0.35%	64
2015 Q4	$5.03M	Buy	81,200 +13,200	+19%	+$712K	0.74%	22
2015 Q3	$2.75M	Buy	68,000 +20,000	+42%	+$1.04M	0.35%	70
2015 Q2	$2.76M	Buy	+48,000	New	+$3.05M	0.27%	99
2014 Q1	–	Sell	-30,000	Closed	-$1.2M	–	124
2013 Q4	$1.2M	Buy	+30,000	New	+$1.07M	0.33%	70

Other funds holding IONS

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 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

Bellevue Group Kuesnacht, Switzerland $4.2B AUM 54.85% 1-Year Est. Return

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

DTC

Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return

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

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Sphera Funds Management's IONS Position: Q2 2025 in Review

Sphera Funds Management sold out of Ionis Pharmaceuticals (IONS) in Q2 2025, closing a stake of 63,821 shares — an estimated $1.93M sold.

Sphera Funds Management first reported a position in IONS in Q4 2013 and held it in 12 quarters. The position peaked at $6.68M in Q2 2024. 362 funds tracked by Wall St. Rank hold IONS as of Q2 2025.

Sphera Funds Management reported no remaining Ionis Pharmaceuticals position as of Q2 2025 after selling out during the quarter.
Sphera Funds Management sold 63,821 Ionis Pharmaceuticals shares in Q2 2025, an estimated $1.93M.
Sphera Funds Management first reported a position in Ionis Pharmaceuticals in Q4 2013 and held it in 12 quarters.
Sphera Funds Management's Ionis Pharmaceuticals position peaked at $6.68M in Q2 2024.
362 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2025.

Based on Sphera Funds Management's 13F filing for Q2 2025, filed 14 Aug 2025.