Aberdeen Group
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Aberdeen Group’s Ionis Pharmaceuticals IONS Stock Holding History

Aberdeen Group’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
Q2 		$22M Buy
277,400
+163,557
+144% +$12.3M 0.03% 415
2026
Q1 		$8.55M Buy
113,843
+84,917
+294% +$6.7M 0.01% 614
2025
Q4 		$2.29M Sell
28,926
-58,998
-67% -$4.44M ﹤0.01% 768
2025
Q3 		$5.75M Sell
87,924
-318,770
-78% -$15.6M 0.01% 685
2025
Q2 		$16.2M Sell
406,694
-39,503
-9% -$1.29M 0.03% 474
2025
Q1 		$13.5M Buy
446,197
+44,696
+11% +$1.46M 0.03% 492
2024
Q4 		$14M Buy
401,501
+98,227
+32% +$3.67M 0.03% 446
2024
Q3 		$12.1M Buy
303,274
+56,357
+23% +$2.62M 0.02% 485
2024
Q2 		$11.8M Buy
246,917
+27,496
+13% +$1.13M 0.02% 482
2024
Q1 		$9.51M Buy
219,421
+83,002
+61% +$3.96M 0.02% 558
2023
Q4 		$6.9M Buy
+136,419
New +$6.53M 0.02% 619
2021
Q2 		– Sell
-5,197
Closed -$234K – 1026
2021
Q1 		$234K Buy
5,197
+405
+8% +$22.6K ﹤0.01% 971
2020
Q4 		$271K Buy
4,792
+543
+13% +$27.1K ﹤0.01% 931
2020
Q3 		$202K Sell
4,249
-3,620
-46% -$201K ﹤0.01% 922
2020
Q2 		$464K Buy
7,869
+18
+0.2% +$1K ﹤0.01% 866
2020
Q1 		$372K Buy
7,851
+213
+3% +$11.9K ﹤0.01% 865
2019
Q4 		$461K Buy
7,638
+132
+2% +$7.87K ﹤0.01% 887
2019
Q3 		$450K Sell
7,506
-20,294
-73% -$1.32M ﹤0.01% 865
2019
Q2 		$1.79M Buy
+27,800
New +$1.97M ﹤0.01% 758

Other funds holding IONS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Aberdeen Group's IONS Position: Q2 2026 in Review

Aberdeen Group increased its Ionis Pharmaceuticals (IONS) stake by 144% in Q2 2026, buying an estimated $12.3M and bringing the position to 277,400 shares worth $22M. The position accounts for 0.03% of the portfolio, ranked #415.

Aberdeen Group first reported a position in IONS in Q2 2019 and has held it in 19 quarters since. 514 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Aberdeen Group held 277,400 shares of Ionis Pharmaceuticals worth $22M as of Q2 2026.
  • Aberdeen Group bought 163,557 Ionis Pharmaceuticals shares in Q2 2026, an estimated $12.3M.
  • Ionis Pharmaceuticals made up 0.03% of Aberdeen Group's portfolio in Q2 2026, its #415 holding.
  • Aberdeen Group first reported a position in Ionis Pharmaceuticals in Q2 2019 and has held it in 19 quarters since.
  • 514 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Aberdeen Group's 13F filing for Q2 2026, filed 31 Jul 2026.