Assenagon Asset Management
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Assenagon Asset Management’s Ionis Pharmaceuticals IONS Stock Holding History

Assenagon 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
Q2 		$3.25M Buy
40,927
+7,254
+22% +$546K ﹤0.01% 754
2026
Q1 		$2.53M Buy
33,673
+4,357
+15% +$344K ﹤0.01% 738
2025
Q4 		$2.32M Sell
29,316
-282,981
-91% -$21.3M ﹤0.01% 803
2025
Q3 		$20.4M Buy
312,297
+294,643
+1,669% +$14.4M 0.03% 366
2025
Q2 		$698K Buy
+17,654
New +$578K ﹤0.01% 982
2025
Q1 		– Sell
-141,917
Closed -$4.96M – 1254
2024
Q4 		$4.96M Buy
141,917
+128,619
+967% +$4.81M 0.01% 685
2024
Q3 		$533K Sell
13,298
-10,928
-45% -$508K ﹤0.01% 1235
2024
Q2 		$1.15M Sell
24,226
-247,037
-91% -$10.1M ﹤0.01% 1060
2024
Q1 		$11.8M Buy
271,263
+86,862
+47% +$4.14M 0.03% 386
2023
Q4 		$9.33M Buy
+184,401
New +$8.83M 0.02% 470
2023
Q2 		– Sell
-27,185
Closed -$972K – 1388
2023
Q1 		$972K Sell
27,185
-414,617
-94% -$15.6M ﹤0.01% 1056
2022
Q4 		$16.7M Sell
441,802
-10,958
-2% -$461K 0.06% 278
2022
Q3 		$20M Buy
452,760
+112,044
+33% +$4.72M 0.08% 243
2022
Q2 		$12.6M Sell
340,716
-17,180
-5% -$648K 0.05% 317
2022
Q1 		$13.3M Buy
357,896
+309,495
+639% +$10.1M 0.04% 305
2021
Q4 		$1.47M Buy
48,401
+42,379
+704% +$1.33M ﹤0.01% 932
2021
Q3 		$202K Buy
+6,022
New +$227K ﹤0.01% 1236
2020
Q4 		– Sell
-36,475
Closed -$1.73M – 1131
2020
Q3 		$1.73M Buy
36,475
+32,727
+873% +$1.82M 0.01% 621
2020
Q2 		$221K Buy
+3,748
New +$208K ﹤0.01% 1059

Other funds holding IONS

Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
DC
Davenport & Co Richmond, Virginia $20.4B AUM 18.11% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
YIH
Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return
WP
Westmount Partners Los Angeles, California $457M AUM 31.05% 1-Year Est. Return
PL
Plancorp LLC Saint Louis, Missouri $4.1B AUM 25.19% 1-Year Est. Return
PR
PSP Research Newtown Square, Pennsylvania $188M AUM
SWP
Significant Wealth Partners Cary, Illinois $92.4M AUM 9.22% 1-Year Est. Return
TE
Tema ETFs New York $3.09B AUM 72.72% 1-Year Est. Return
MFT
Moisand Fitzgerald Tamayo Orlando, Florida $1.02B AUM 21.26% 1-Year Est. Return

Assenagon Asset Management's IONS Position: Q2 2026 in Review

Assenagon Asset Management increased its Ionis Pharmaceuticals (IONS) stake by 22% in Q2 2026, buying an estimated $546K and bringing the position to 40,927 shares worth $3.25M. The position accounts for ﹤0.01% of the portfolio, ranked #754.

Assenagon Asset Management first reported a position in IONS in Q2 2020 and has held it in 19 quarters since. The position peaked at $20.4M in Q3 2025. 41 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Assenagon Asset Management held 40,927 shares of Ionis Pharmaceuticals worth $3.25M as of Q2 2026.
  • Assenagon Asset Management bought 7,254 Ionis Pharmaceuticals shares in Q2 2026, an estimated $546K.
  • Ionis Pharmaceuticals made up ﹤0.01% of Assenagon Asset Management's portfolio in Q2 2026, its #754 holding.
  • Assenagon Asset Management first reported a position in Ionis Pharmaceuticals in Q2 2020 and has held it in 19 quarters since.
  • Assenagon Asset Management's Ionis Pharmaceuticals position peaked at $20.4M in Q3 2025.
  • 41 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Assenagon Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.