IONIS PHARMACEUTICALS INC

Ticker: IONS CUSIP: 462222100 Class: COM

BERKSHIRE ASSET MANAGEMENT LLC/PA's Holding History (CIK: 0000949012)

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

Q4 2025
Shares 3,630 Value ($000) $287 Avg Close $75.30 Range $64.93 - $83.61
Q3 2025
Shares 3,614 Value ($000) $236 Avg Close $48.82 Range $39.72 - $65.55
Q4 2023
Shares 4,180 Value ($000) $211 Avg Close $47.90 Range $41.84 - $52.27
Q2 2022
Shares 5,596 Value ($000) $207 Avg Close $37.71 Range $31.46 - $44.42
Q1 2022
Shares 9,739 Value ($000) $361 Avg Close $32.73 Range $28.25 - $37.15
Q4 2021
Shares 9,239 Value ($000) $281 Avg Close $31.48 Range $25.04 - $35.80
Q3 2021
Shares 13,060 Value ($000) $438 Avg Close $37.68 Range $33.52 - $40.99
Q2 2021
Shares 11,399 Value ($000) $455 Avg Close $39.17 Range $34.43 - $47.87
Q1 2021
Shares 12,348 Value ($000) $555 Avg Close $55.77 Range $41.42 - $64.37
Q4 2020
Shares 12,348 Value ($000) $698 Avg Close $49.83 Range $45.09 - $60.95
Q2 2020
Shares 3,986 Value ($000) $235 Avg Close $55.63 Range $45.12 - $61.24
Q1 2020
Shares 11,516 Value ($000) $544 Avg Close $55.74 Range $39.32 - $64.34
Q4 2019
Shares 3,509 Value ($000) $212 Avg Close $59.58 Range $53.34 - $66.22
Q3 2019
Shares 3,861 Value ($000) $231 Avg Close $65.17 Range $58.48 - $73.09
Q2 2019
Shares 3,861 Value ($000) $248 Avg Close $70.69 Range $61.91 - $86.58
Q1 2019
Shares 2,983 Value ($000) $242 Avg Close $64.51 Range $52.45 - $81.59