IONIS PHARMACEUTICALS INC

Ticker: IONS CUSIP: 462222100 Class: COM

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

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

Q4 2025
Shares 115,917 Value ($000) $9,170 Avg Close $75.30 Range $64.93 - $83.61
Q3 2025
Shares 119,028 Value ($000) $7,787 Avg Close $48.82 Range $39.72 - $65.55
Q2 2025
Shares 98,348 Value ($000) $3,886 Avg Close $32.73 Range $23.95 - $40.61
Q1 2025
Shares 71,558 Value ($000) $2,159 Avg Close $32.75 Range $29.61 - $35.48
Q4 2024
Shares 70,091 Value ($000) $2,450 Avg Close $37.38 Range $33.33 - $40.58
Q3 2024
Shares 189,837 Value ($000) $7,605 Avg Close $46.53 Range $39.48 - $52.34
Q2 2024
Shares 132,311 Value ($000) $6,306 Avg Close $41.01 Range $35.95 - $47.86
Q1 2024
Shares 79,887 Value ($000) $3,463 Avg Close $47.67 Range $41.60 - $54.44
Q4 2023
Shares 70,173 Value ($000) $3,550 Avg Close $47.90 Range $41.84 - $52.27
Q3 2023
Shares 64,711 Value ($000) $2,935 Avg Close $41.26 Range $38.26 - $47.72
Q2 2023
Shares 15,310 Value ($000) $628 Avg Close $38.43 Range $34.32 - $43.55
Q1 2023
Shares 45,924 Value ($000) $1,641 Avg Close $37.55 Range $32.69 - $41.73
Q4 2022
Shares 45,941 Value ($000) $1,735 Avg Close $42.06 Range $36.69 - $47.74
Q3 2022
Shares 19,129 Value ($000) $845 Avg Close $42.14 Range $35.95 - $48.82
Q2 2022
Shares 10,626 Value ($000) $392 Avg Close $37.71 Range $31.46 - $44.42
Q1 2022
Shares 11,018 Value ($000) $407 Avg Close $32.73 Range $28.25 - $37.15
Q4 2021
Shares 11,194 Value ($000) $339 Avg Close $31.48 Range $25.04 - $35.80
Q3 2021
Shares 13,957 Value ($000) $401 Avg Close $37.68 Range $33.52 - $40.99
Q2 2021
Shares 14,052 Value ($000) $492 Avg Close $39.17 Range $34.43 - $47.87
Q1 2021
Shares 27,462 Value ($000) $1,377 Avg Close $55.77 Range $41.42 - $64.37
Q4 2020
Shares 26,651 Value ($000) $1,463 Avg Close $49.83 Range $45.09 - $60.95
Q3 2020
Shares 85,131 Value ($000) $4,013 Avg Close $55.55 Range $47.19 - $63.49
Q2 2020
Shares 94,051 Value ($000) $5,529 Avg Close $55.63 Range $45.12 - $61.24
Q1 2020
Shares 90,483 Value ($000) $4,278 Avg Close $55.74 Range $39.32 - $64.34
Q4 2019
Shares 98,697 Value ($000) $5,962 Avg Close $59.58 Range $53.34 - $66.22
Q3 2019
Shares 72,142 Value ($000) $4,322 Avg Close $65.17 Range $58.48 - $73.09
Q2 2019
Shares 69,041 Value ($000) $4,437 Avg Close $70.69 Range $61.91 - $86.58
Q1 2019
Shares 67,249 Value ($000) $5,459 Avg Close $64.51 Range $52.45 - $81.59
Q4 2018
Shares 54,477 Value ($000) $2,810 Avg Close $51.00 Range $43.27 - $59.81
Q3 2018
Shares 54,477 Value ($000) $2,810 Avg Close $46.98 Range $41.05 - $54.85
Q2 2018
Shares 99,205 Value ($000) $4,134 Avg Close $44.30 Range $39.07 - $51.00
Q1 2018
Shares 75,633 Value ($000) $3,334 Avg Close $50.80 Range $43.38 - $56.47
Q4 2017
Shares 56,395 Value ($000) $2,836 Avg Close $54.84 Range $50.02 - $65.51
Q3 2017
Shares 55,849 Value ($000) $2,832 Avg Close $52.38 Range $43.75 - $60.01
Q2 2017
Shares 51,357 Value ($000) $2,613 Avg Close $46.57 Range $37.26 - $55.73
Q1 2017
Shares 40,237 Value ($000) $1,618 Avg Close $44.91 Range $37.29 - $56.91
Q4 2016
Shares 36,207 Value ($000) $1,732 Avg Close $39.57 Range $24.58 - $57.00
Q3 2016
Shares 128,085 Value ($000) $4,693 Avg Close $31.29 Range $23.26 - $40.82
Q2 2016
Shares 134,430 Value ($000) $3,131 Avg Close $32.26 Range $19.59 - $46.75
Q1 2016
Shares 41,754 Value ($000) $1,691 Avg Close $40.62 Range $30.93 - $62.68
Q4 2015
Shares 2,240 Value ($000) $139 Avg Close $53.96 Range $38.30 - $65.34