IONIS PHARMACEUTICALS INC

Ticker: IONS CUSIP: 462222100 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 144,173 Value ($000) $11,406 Avg Close $75.30 Range $64.93 - $83.61
Q3 2025
Shares 145,112 Value ($000) $9,493 Avg Close $48.82 Range $39.72 - $65.55
Q2 2025
Shares 145,104 Value ($000) $5,733 Avg Close $32.73 Range $23.95 - $40.61
Q1 2025
Shares 132,238 Value ($000) $3,990 Avg Close $32.75 Range $29.61 - $35.48
Q4 2024
Shares 133,902 Value ($000) $4,681 Avg Close $37.38 Range $33.33 - $40.58
Q3 2024
Shares 126,180 Value ($000) $5,055 Avg Close $46.53 Range $39.48 - $52.34
Q2 2024
Shares 129,216 Value ($000) $6,158 Avg Close $41.01 Range $35.95 - $47.86
Q1 2024
Shares 131,818 Value ($000) $5,714 Avg Close $47.67 Range $41.60 - $54.44
Q4 2023
Shares 138,532 Value ($000) $7,008 Avg Close $47.90 Range $41.84 - $52.27
Q3 2023
Shares 145,582 Value ($000) $6,604 Avg Close $41.26 Range $38.26 - $47.72
Q2 2023
Shares 160,998 Value ($000) $6,606 Avg Close $38.43 Range $34.32 - $43.55
Q1 2023
Shares 165,180 Value ($000) $5,904 Avg Close $37.55 Range $32.69 - $41.73
Q4 2022
Shares 167,875 Value ($000) $6,341 Avg Close $42.06 Range $36.69 - $47.74
Q3 2022
Shares 165,925 Value ($000) $7,339 Avg Close $42.14 Range $35.95 - $48.82
Q2 2022
Shares 169,414 Value ($000) $6,272 Avg Close $37.71 Range $31.46 - $44.42
Q1 2022
Shares 168,362 Value ($000) $6,236 Avg Close $32.73 Range $28.25 - $37.15
Q4 2021
Shares 184,004 Value ($000) $5,599 Avg Close $31.48 Range $25.04 - $35.80
Q3 2021
Shares 225,991 Value ($000) $7,580 Avg Close $37.68 Range $33.52 - $40.99
Q2 2021
Shares 243,722 Value ($000) $9,722 Avg Close $39.17 Range $34.43 - $47.87
Q1 2021
Shares 245,083 Value ($000) $11,019 Avg Close $55.77 Range $41.42 - $64.37
Q4 2020
Shares 242,615 Value ($000) $13,717 Avg Close $49.83 Range $45.09 - $60.95
Q3 2020
Shares 238,239 Value ($000) $11,304 Avg Close $55.55 Range $47.19 - $63.49
Q2 2020
Shares 243,599 Value ($000) $14,363 Avg Close $55.63 Range $45.12 - $61.24
Q1 2020
Shares 222,147 Value ($000) $10,503 Avg Close $55.74 Range $39.32 - $64.34
Q4 2019
Shares 227,869 Value ($000) $13,766 Avg Close $59.58 Range $53.34 - $66.22
Q3 2019
Shares 212,247 Value ($000) $12,716 Avg Close $65.17 Range $58.48 - $73.09
Q2 2019
Shares 209,791 Value ($000) $13,483 Avg Close $70.69 Range $61.91 - $86.58
Q1 2019
Shares 197,609 Value ($000) $16,040 Avg Close $64.51 Range $52.45 - $81.59
Q4 2018
Shares 196,801 Value ($000) $10,639 Avg Close $51.00 Range $43.27 - $59.81
Q3 2018
Shares 192,172 Value ($000) $9,912 Avg Close $46.98 Range $41.05 - $54.85
Q2 2018
Shares 192,240 Value ($000) $8,011 Avg Close $44.30 Range $39.07 - $51.00
Q1 2018
Shares 189,217 Value ($000) $8,341 Avg Close $50.80 Range $43.38 - $56.47
Q4 2017
Shares 195,850 Value ($000) $9,851 Avg Close $54.84 Range $50.02 - $65.51
Q3 2017
Shares 198,913 Value ($000) $10,085 Avg Close $52.38 Range $43.75 - $60.01
Q2 2017
Shares 220,108 Value ($000) $11,197 Avg Close $46.57 Range $37.26 - $55.73
Q1 2017
Shares 239,139 Value ($000) $9,613 Avg Close $44.91 Range $37.29 - $56.91
Q4 2016
Shares 250,139 Value ($000) $11,964 Avg Close $39.57 Range $24.58 - $57.00
Q3 2016
Shares 256,839 Value ($000) $9,411 Avg Close $31.29 Range $23.26 - $40.82
Q2 2016
Shares 254,739 Value ($000) $5,933 Avg Close $32.26 Range $19.59 - $46.75
Q1 2016
Shares 254,373 Value ($000) $10,302 Avg Close $40.62 Range $30.93 - $62.68
Q4 2015
Shares 221,826 Value ($000) $13,738 Avg Close $53.96 Range $38.30 - $65.34