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
2025
Q2 		– Sell
-11,200
Closed -$338K – 1767
2025
Q1 		$338K Sell
11,200
-81,300
-88% -$2.66M ﹤0.01% 1364
2024
Q4 		$3.23M Hold
92,500
– – 0.01% 1048
2024
Q3 		$3.71M Buy
+92,500
New +$4.3M 0.01% 989
2024
Q2 		– Sell
-9,800
Closed -$425K – 1493
2024
Q1 		$425K Sell
9,800
-168,000
-94% -$8.01M ﹤0.01% 1118
2023
Q4 		$8.99M Buy
177,800
+67,100
+61% +$3.21M 0.02% 718
2023
Q3 		$5.02M Buy
110,700
+10,600
+11% +$437K 0.01% 679
2023
Q2 		$4.11M Buy
+100,100
New +$3.85M 0.01% 804
2021
Q1 		– Sell
-4,800
Closed -$271K – 1461
2020
Q4 		$271K Buy
+4,800
New +$239K ﹤0.01% 1088
2020
Q3 		– Sell
-9,300
Closed -$548K – 1405
2020
Q2 		$548K Hold
9,300
– – ﹤0.01% 1147
2020
Q1 		$440K Buy
+9,300
New +$518K ﹤0.01% 985
2019
Q3 		– Sell
-34,800
Closed -$2.24M – 1346
2019
Q2 		$2.24M Sell
34,800
-125,400
-78% -$8.86M 0.01% 634
2019
Q1 		$13M Sell
160,200
-42,600
-21% -$2.75M 0.07% 243
2018
Q4 		$11M Buy
202,800
+154,300
+318% +$7.87M 0.07% 295
2018
Q3 		$2.5M Sell
48,500
-24,700
-34% -$1.16M 0.02% 543
2018
Q2 		$3.05M Buy
73,200
+72,500
+10,357% +$3.21M 0.02% 542
2018
Q1 		$31K Sell
700
-9,800
-93% -$498K ﹤0.01% 1023
2017
Q4 		$528K Buy
10,500
+3,800
+57% +$208K ﹤0.01% 796
2017
Q3 		$340K Buy
+6,700
New +$351K ﹤0.01% 791
2015
Q3 		– Sell
-800
Closed -$46K – 1407
2015
Q2 		$46K Buy
800
+500
+167% +$31.8K ﹤0.01% 1215
2015
Q1 		$19K Buy
+300
New +$20.4K ﹤0.01% 1088

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

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. 493 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.
  • 493 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.