Twin Tree Management
IONS icon

Twin Tree Management’s Ionis Pharmaceuticals IONS Stock Holding History

Twin Tree 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
-32,476
Closed -$2.57M – 1486
2025
Q4 		$2.57M Buy
32,476
+3,901
+14% +$294K 0.02% 743
2025
Q3 		$1.87M Buy
+28,575
New +$1.4M 0.01% 1061
2025
Q2 		– Sell
-11,385
Closed -$343K – 1766
2025
Q1 		$343K Sell
11,385
-77,515
-87% -$2.54M ﹤0.01% 1363
2024
Q4 		$3.11M Buy
88,900
+76,472
+615% +$2.86M 0.01% 1059
2024
Q3 		$498K Buy
12,428
+2,047
+20% +$95.2K ﹤0.01% 1294
2024
Q2 		$495K Buy
10,381
+2,818
+37% +$116K ﹤0.01% 1120
2024
Q1 		$328K Buy
+7,563
New +$360K ﹤0.01% 1128
2023
Q4 		– Sell
-20,441
Closed -$979K – 1474
2023
Q3 		$927K Buy
+20,441
New +$843K ﹤0.01% 980
2022
Q4 		– Sell
-23,517
Closed -$1.04M – 1422
2022
Q3 		$1.04M Buy
+23,517
New +$991K ﹤0.01% 1045
2021
Q3 		– Sell
-29,382
Closed -$1.17M – 1672
2021
Q2 		$1.17M Buy
+29,382
New +$1.15M ﹤0.01% 992
2020
Q2 		– Sell
-595
Closed -$33.1K – 1574
2020
Q1 		$28K Buy
595
+264
+80% +$14.7K ﹤0.01% 1187
2019
Q4 		$20K Sell
331
-207
-38% -$12.3K ﹤0.01% 1155
2019
Q3 		$32K Buy
538
+399
+287% +$26K ﹤0.01% 1070
2019
Q2 		$9K Buy
+139
New +$9.83K ﹤0.01% 1111
2019
Q1 		– Sell
-15,823
Closed -$1.02M – 1442
2018
Q4 		$855K Buy
15,823
+6,021
+61% +$307K 0.01% 889
2018
Q3 		$506K Buy
9,802
+2,628
+37% +$123K ﹤0.01% 840
2018
Q2 		$299K Buy
+7,174
New +$318K ﹤0.01% 959
2015
Q3 		– Sell
-652
Closed -$38K – 1406
2015
Q2 		$38K Buy
+652
New +$41.5K ﹤0.01% 1223

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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Twin Tree Management's IONS Position: Q1 2026 in Review

Twin Tree Management sold out of Ionis Pharmaceuticals (IONS) in Q1 2026, closing a stake of 32,476 shares — an estimated $2.57M sold.

Twin Tree Management first reported a position in IONS in Q2 2015 and held it in 18 quarters. The position peaked at $3.11M in Q4 2024. 496 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

  • Twin Tree Management reported no remaining Ionis Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • Twin Tree Management sold 32,476 Ionis Pharmaceuticals shares in Q1 2026, an estimated $2.57M.
  • Twin Tree Management first reported a position in Ionis Pharmaceuticals in Q2 2015 and held it in 18 quarters.
  • Twin Tree Management's Ionis Pharmaceuticals position peaked at $3.11M in Q4 2024.
  • 496 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on Twin Tree Management's 13F filing for Q1 2026, filed 14 May 2026.