Teacher Retirement System of Texas
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Teacher Retirement System of Texas’s Ionis Pharmaceuticals IONS Stock Holding History

Teacher Retirement System of Texas’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 		$39.3M Buy
523,932
+101,033
+24% +$7.97M 0.16% 153
2025
Q4 		$33.5M Sell
422,899
-51,046
-11% -$3.84M 0.12% 165
2025
Q3 		$31M Sell
473,945
-194,328
-29% -$9.49M 0.12% 160
2025
Q2 		$26.4M Buy
668,273
+167,822
+34% +$5.49M 0.11% 188
2025
Q1 		$15.1M Buy
500,451
+434,659
+661% +$14.2M 0.06% 284
2024
Q4 		$2.3M Buy
65,792
+9,093
+16% +$340K 0.01% 802
2024
Q3 		$2.27M Buy
56,699
+4,147
+8% +$193K 0.01% 699
2024
Q2 		$2.5M Buy
52,552
+23,816
+83% +$977K 0.01% 564
2024
Q1 		$1.25M Sell
28,736
-1,108
-4% -$52.8K 0.01% 856
2023
Q4 		$1.51M Sell
29,844
-6,734
-18% -$323K 0.01% 771
2023
Q3 		$1.66M Buy
36,578
+1,675
+5% +$69.1K 0.01% 808
2023
Q2 		$1.43M Sell
34,903
-4,480
-11% -$172K 0.01% 856
2023
Q1 		$1.41M Buy
39,383
+1,005
+3% +$37.7K 0.01% 948
2022
Q4 		$1.45M Sell
38,378
-3,466
-8% -$146K 0.01% 900
2022
Q3 		$1.85M Buy
41,844
+21,579
+106% +$909K 0.01% 761
2022
Q2 		$750K Sell
20,265
-5,947
-23% -$224K 0.01% 932
2022
Q1 		$971K Buy
26,212
+1,758
+7% +$57.5K 0.01% 1027
2021
Q4 		$744K Buy
24,454
+4,694
+24% +$148K ﹤0.01% 1228
2021
Q3 		$663K Buy
19,760
+2,242
+13% +$84.5K ﹤0.01% 1183
2021
Q2 		$699K Sell
17,518
-10,438
-37% -$409K ﹤0.01% 1069
2021
Q1 		$1.26M Buy
27,956
+2,127
+8% +$119K 0.01% 756
2020
Q4 		$1.46M Buy
25,829
+3,250
+14% +$162K 0.01% 661
2020
Q3 		$1.07M Buy
22,579
+4,248
+23% +$236K 0.01% 670
2020
Q2 		$1.08M Buy
18,331
+2,802
+18% +$156K 0.01% 574
2020
Q1 		$734K Sell
15,529
-60,829
-80% -$3.39M 0.01% 510
2019
Q4 		$4.61M Buy
76,358
+60,629
+385% +$3.61M 0.04% 407
2019
Q3 		$942K Sell
15,729
-3,814
-20% -$249K 0.01% 523
2019
Q2 		$1.26M Buy
+19,543
New +$1.38M 0.01% 485
2018
Q4 		– Sell
-14,779
Closed -$762K – 909
2018
Q3 		$762K Sell
14,779
-10,531
-42% -$495K 0.01% 696
2018
Q2 		$1.05M Sell
25,310
-2,251
-8% -$99.8K 0.01% 786
2018
Q1 		$1.22M Sell
27,561
-14,523
-35% -$738K 0.01% 749
2017
Q4 		$2.12M Buy
42,084
+31,832
+310% +$1.75M 0.01% 682
2017
Q3 		$520K Buy
10,252
+579
+6% +$30.3K ﹤0.01% 639
2017
Q2 		$492K Buy
9,673
+43
+0.4% +$2K ﹤0.01% 543
2017
Q1 		$387K Sell
9,630
-55
-0.6% -$2.47K ﹤0.01% 628
2016
Q4 		$463K Sell
9,685
-3,156
-25% -$125K ﹤0.01% 561
2016
Q3 		$470K Buy
12,841
+4,264
+50% +$133K ﹤0.01% 737
2016
Q2 		$200K Buy
8,577
+2,036
+31% +$65.7K ﹤0.01% 1410
2016
Q1 		$265K Buy
6,541
+3,616
+124% +$147K ﹤0.01% 1156
2015
Q4 		$181K Sell
2,925
-3,485
-54% -$188K ﹤0.01% 1194
2015
Q3 		$259K Buy
6,410
+1,722
+37% +$89.1K ﹤0.01% 1161
2015
Q2 		$270K Buy
4,688
+1,108
+31% +$70.4K ﹤0.01% 725
2015
Q1 		$228K Buy
3,580
+14
+0.4% +$950 ﹤0.01% 845
2014
Q4 		$220K Sell
3,566
-467
-12% -$23K ﹤0.01% 651
2014
Q3 		$157K Sell
4,033
-369
-8% -$13.1K ﹤0.01% 673
2014
Q2 		$152K Sell
4,402
-188
-4% -$5.92K ﹤0.01% 751
2014
Q1 		$198K Buy
4,590
+286
+7% +$13.9K ﹤0.01% 501
2013
Q4 		$171K Sell
4,304
-8,974
-68% -$320K ﹤0.01% 551
2013
Q3 		$498K Buy
13,278
+5,672
+75% +$169K ﹤0.01% 621
2013
Q2 		$204K Buy
+7,606
New +$162K ﹤0.01% 748

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

Teacher Retirement System of Texas's IONS Position: Q1 2026 in Review

Teacher Retirement System of Texas increased its Ionis Pharmaceuticals (IONS) stake by 24% in Q1 2026, buying an estimated $7.97M and bringing the position to 523,932 shares worth $39.3M. The position accounts for 0.16% of the portfolio, ranked #153.

Teacher Retirement System of Texas first reported a position in IONS in Q2 2013 and has held it in 50 quarters since. 494 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

  • Teacher Retirement System of Texas held 523,932 shares of Ionis Pharmaceuticals worth $39.3M as of Q1 2026.
  • Teacher Retirement System of Texas bought 101,033 Ionis Pharmaceuticals shares in Q1 2026, an estimated $7.97M.
  • Ionis Pharmaceuticals made up 0.16% of Teacher Retirement System of Texas's portfolio in Q1 2026, its #153 holding.
  • Teacher Retirement System of Texas first reported a position in Ionis Pharmaceuticals in Q2 2013 and has held it in 50 quarters since.
  • 494 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on Teacher Retirement System of Texas's 13F filing for Q1 2026, filed 30 Apr 2026.