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Aigen Investment Management’s Ionis Pharmaceuticals IONS Stock Holding History

Aigen Investment 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 		$660K Sell
8,790
-71
-0.8% -$5.6K 0.17% 163
2025
Q4 		$701K Sell
8,861
-4,717
-35% -$355K 0.16% 195
2025
Q3 		$888K Buy
13,578
+5,280
+64% +$258K 0.14% 229
2025
Q2 		$328K Buy
+8,298
New +$272K 0.04% 500
2025
Q1 		– Sell
-17,723
Closed -$620K – 882
2024
Q4 		$620K Buy
17,723
+6,111
+53% +$228K 0.11% 272
2024
Q3 		$465K Buy
+11,612
New +$540K 0.09% 343
2024
Q2 		– Sell
-16,747
Closed -$726K – 897
2024
Q1 		$726K Sell
16,747
-56,973
-77% -$2.72M 0.16% 197
2023
Q4 		$3.73M Buy
+73,720
New +$3.53M 0.67% 17
2023
Q3 		– Sell
-16,019
Closed -$657K – 950
2023
Q2 		$657K Buy
+16,019
New +$616K 0.1% 285
2021
Q3 		– Sell
-8,912
Closed -$355K – 559
2021
Q2 		$355K Buy
+8,912
New +$349K 0.06% 291
2021
Q1 		– Sell
-42,747
Closed -$2.42M – 754
2020
Q4 		$2.42M Buy
42,747
+36,349
+568% +$1.81M 0.32% 71
2020
Q3 		$304K Sell
6,398
-16,367
-72% -$909K 0.04% 535
2020
Q2 		$1.34M Sell
22,765
-12,489
-35% -$695K 0.17% 174
2020
Q1 		$1.67M Buy
35,254
+24,199
+219% +$1.35M 0.22% 116
2019
Q4 		$668K Buy
+11,055
New +$659K 0.11% 264

Other funds holding IONS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
BlackRock
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
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Aigen Investment Management's IONS Position: Q1 2026 in Review

Aigen Investment Management reduced its Ionis Pharmaceuticals (IONS) stake by 0.8% in Q1 2026, selling an estimated $5.6K and leaving 8,790 shares worth $660K. The position accounts for 0.17% of the portfolio, ranked #163.

Aigen Investment Management first reported a position in IONS in Q4 2019 and has held it in 15 quarters since. The position peaked at $3.73M in Q4 2023. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

  • Aigen Investment Management held 8,790 shares of Ionis Pharmaceuticals worth $660K as of Q1 2026.
  • Aigen Investment Management sold 71 Ionis Pharmaceuticals shares in Q1 2026, an estimated $5.6K.
  • Ionis Pharmaceuticals made up 0.17% of Aigen Investment Management's portfolio in Q1 2026, its #163 holding.
  • Aigen Investment Management first reported a position in Ionis Pharmaceuticals in Q4 2019 and has held it in 15 quarters since.
  • Aigen Investment Management's Ionis Pharmaceuticals position peaked at $3.73M in Q4 2023.
  • 493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

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