IONIS PHARMACEUTICALS INC

Ticker: IONS CUSIP: 462222100 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025
Shares 176,035 Value ($000) $13,925 Avg Close $75.30 Range $64.93 - $83.61
Q3 2025
Shares 42,217 Value ($000) $2,762 Avg Close $48.82 Range $39.72 - $65.55
Q4 2024
Shares 94,157 Value ($000) $3,292 Avg Close $37.38 Range $33.33 - $40.58
Q3 2024
Shares 94,332 Value ($000) $3,779 Avg Close $46.53 Range $39.48 - $52.34
Q2 2024
Shares 88,746 Value ($000) $4,230 Avg Close $41.01 Range $35.95 - $47.86
Q1 2024
Shares 109,303 Value ($000) $4,738 Avg Close $47.67 Range $41.60 - $54.44
Q4 2023
Shares 125,217 Value ($000) $6,335 Avg Close $47.90 Range $41.84 - $52.27
Q3 2023
Shares 192,160 Value ($000) $8,716 Avg Close $41.26 Range $38.26 - $47.72
Q2 2023
Shares 182,714 Value ($000) $7,497 Avg Close $38.43 Range $34.32 - $43.55
Q1 2023
Shares 442,885 Value ($000) $15,826 Avg Close $37.55 Range $32.69 - $41.73
Q4 2022
Shares 458,444 Value ($000) $17 Avg Close $42.06 Range $36.69 - $47.74
Q3 2022
Shares 560,928 Value ($000) $24,810 Avg Close $42.14 Range $35.95 - $48.82
Q2 2022
Shares 585,048 Value ($000) $21,658 Avg Close $37.71 Range $31.46 - $44.42
Q1 2022
Shares 353,481 Value ($000) $13,089 Avg Close $32.73 Range $28.25 - $37.15
Q4 2021
Shares 386,691 Value ($000) $11,767 Avg Close $31.48 Range $25.04 - $35.80
Q3 2021
Shares 355,839 Value ($000) $11,935 Avg Close $37.68 Range $33.52 - $40.99
Q2 2021
Shares 410,217 Value ($000) $16,362 Avg Close $39.17 Range $34.43 - $47.87
Q1 2021
Shares 457,281 Value ($000) $20,563 Avg Close $55.77 Range $41.42 - $64.37
Q4 2020
Shares 449,104 Value ($000) $25,396 Avg Close $49.83 Range $45.09 - $60.95
Q3 2020
Shares 451,318 Value ($000) $21,420 Avg Close $55.55 Range $47.19 - $63.49
Q2 2020
Shares 419,071 Value ($000) $24,710 Avg Close $55.63 Range $45.12 - $61.24
Q1 2020
Shares 348,572 Value ($000) $16,482 Avg Close $55.74 Range $39.32 - $64.34
Q4 2019
Shares 303,529 Value ($000) $18,336 Avg Close $59.58 Range $53.34 - $66.22
Q3 2019
Shares 280,785 Value ($000) $16,820 Avg Close $65.17 Range $58.48 - $73.09
Q2 2019
Shares 273,351 Value ($000) $17,570 Avg Close $70.69 Range $61.91 - $86.58
Q1 2019
Shares 304,577 Value ($000) $24,720 Avg Close $64.51 Range $52.45 - $81.59
Q4 2018
Shares 292,868 Value ($000) $15,827 Avg Close $51.00 Range $43.27 - $59.81
Q3 2018
Shares 268,699 Value ($000) $13,860 Avg Close $46.98 Range $41.05 - $54.85
Q2 2018
Shares 237,618 Value ($000) $9,902 Avg Close $44.30 Range $39.07 - $51.00
Q1 2018
Shares 237,581 Value ($000) $10,473 Avg Close $50.80 Range $43.38 - $56.47
Q4 2017
Shares 224,811 Value ($000) $11,309 Avg Close $54.84 Range $50.02 - $65.51
Q3 2017
Shares 204,022 Value ($000) $10,347 Avg Close $52.38 Range $43.75 - $60.01
Q2 2017
Shares 196,812 Value ($000) $10,014 Avg Close $46.57 Range $37.26 - $55.73
Q1 2017
Shares 170,316 Value ($000) $6,847 Avg Close $44.91 Range $37.29 - $56.91
Q4 2016
Shares 97,341 Value ($000) $4,656 Avg Close $39.57 Range $24.58 - $57.00
Q3 2016
Shares 21,082 Value ($000) $772 Avg Close $31.29 Range $23.26 - $40.82
Q2 2016
Shares 11,814 Value ($000) $275 Avg Close $32.26 Range $19.59 - $46.75
Q1 2016
Shares 111,407 Value ($000) $4,510 Avg Close $40.62 Range $30.93 - $62.68
Q4 2015
Shares 97,216 Value ($000) $6,020 Avg Close $53.96 Range $38.30 - $65.34