IONIS PHARMACEUTICALS INC

Ticker: IONS CUSIP: 462222100 Class: COM

PRICE T ROWE ASSOCIATES INC /MD/'s Holding History (CIK: 0000080255)

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

Q4 2025
Shares 2,987,840 Value ($000) $236 Avg Close $75.30 Range $64.93 - $83.61
Q3 2025
Shares 2,729,685 Value ($000) $179 Avg Close $48.82 Range $39.72 - $65.55
Q2 2025
Shares 3,126,073 Value ($000) $124 Avg Close $32.73 Range $23.95 - $40.61
Q1 2025
Shares 3,265,034 Value ($000) $99 Avg Close $32.75 Range $29.61 - $35.48
Q4 2024
Shares 3,826,939 Value ($000) $134 Avg Close $37.38 Range $33.33 - $40.58
Q3 2024
Shares 4,210,172 Value ($000) $169 Avg Close $46.53 Range $39.48 - $52.34
Q2 2024
Shares 3,934,311 Value ($000) $188 Avg Close $41.01 Range $35.95 - $47.86
Q1 2024
Shares 3,522,203 Value ($000) $153 Avg Close $47.67 Range $41.60 - $54.44
Q4 2023
Shares 4,255,074 Value ($000) $215 Avg Close $47.90 Range $41.84 - $52.27
Q3 2023
Shares 3,757,997 Value ($000) $170 Avg Close $41.26 Range $38.26 - $47.72
Q2 2023
Shares 3,835,867 Value ($000) $157 Avg Close $38.43 Range $34.32 - $43.55
Q1 2023
Shares 3,934,951 Value ($000) $141 Avg Close $37.55 Range $32.69 - $41.73
Q4 2022
Shares 4,292,431 Value ($000) $162 Avg Close $42.06 Range $36.69 - $47.74
Q3 2022
Shares 4,797,132 Value ($000) $212,178 Avg Close $42.14 Range $35.95 - $48.82
Q2 2022
Shares 15,056,046 Value ($000) $557,375 Avg Close $37.71 Range $31.46 - $44.42
Q1 2022
Shares 14,350,460 Value ($000) $531,541 Avg Close $32.73 Range $28.25 - $37.15
Q4 2021
Shares 12,490,280 Value ($000) $380,079 Avg Close $31.48 Range $25.04 - $35.80
Q3 2021
Shares 11,737,321 Value ($000) $393,670 Avg Close $37.68 Range $33.52 - $40.99
Q2 2021
Shares 12,258,827 Value ($000) $489,005 Avg Close $39.17 Range $34.43 - $47.87
Q1 2021
Shares 12,580,056 Value ($000) $565,599 Avg Close $55.77 Range $41.42 - $64.37
Q4 2020
Shares 13,114,967 Value ($000) $741,520 Avg Close $49.83 Range $45.09 - $60.95
Q3 2020
Shares 10,732,025 Value ($000) $509,235 Avg Close $55.55 Range $47.19 - $63.49
Q2 2020
Shares 8,611,362 Value ($000) $507,726 Avg Close $55.63 Range $45.12 - $61.24
Q1 2020
Shares 3,762,445 Value ($000) $177,888 Avg Close $55.74 Range $39.32 - $64.34
Q4 2019
Shares 1,864,436 Value ($000) $112,631 Avg Close $59.58 Range $53.34 - $66.22
Q3 2019
Shares 1,949,864 Value ($000) $116,816 Avg Close $65.17 Range $58.48 - $73.09
Q2 2019
Shares 1,985,367 Value ($000) $127,600 Avg Close $70.69 Range $61.91 - $86.58
Q1 2019
Shares 2,467,469 Value ($000) $200,284 Avg Close $64.51 Range $52.45 - $81.59
Q4 2018
Shares 1,149,124 Value ($000) $62,122 Avg Close $51.00 Range $43.27 - $59.81
Q3 2018
Shares 1,094,536 Value ($000) $56,456 Avg Close $46.98 Range $41.05 - $54.85
Q2 2018
Shares 1,201,633 Value ($000) $50,072 Avg Close $44.30 Range $39.07 - $51.00
Q1 2018
Shares 1,341,932 Value ($000) $59,152 Avg Close $50.80 Range $43.38 - $56.47
Q4 2017
Shares 1,388,578 Value ($000) $69,845 Avg Close $54.84 Range $50.02 - $65.51
Q3 2017
Shares 1,123,900 Value ($000) $56,982 Avg Close $52.38 Range $43.75 - $60.01
Q2 2017
Shares 1,137,221 Value ($000) $57,850 Avg Close $46.57 Range $37.26 - $55.73
Q1 2017
Shares 1,873,959 Value ($000) $75,333 Avg Close $44.91 Range $37.29 - $56.91
Q4 2016
Shares 1,900,605 Value ($000) $90,906 Avg Close $39.57 Range $24.58 - $57.00
Q3 2016
Shares 1,033,100 Value ($000) $37,853 Avg Close $31.29 Range $23.26 - $40.82
Q2 2016
Shares 1,340,638 Value ($000) $31,223 Avg Close $32.26 Range $19.59 - $46.75
Q1 2016
Shares 1,314,228 Value ($000) $53,226 Avg Close $40.62 Range $30.93 - $62.68
Q4 2015
Shares 1,400,487 Value ($000) $86,732 Avg Close $53.96 Range $38.30 - $65.34