IONIS PHARMACEUTICALS INC

CUSIP: 462222AD2 Class: NOTE 4/0

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q4 2025
Shares 2,768,000 Value ($000) $3,792 Avg Close — Range —
Q3 2025
Shares 2,816,000 Value ($000) $3,455 Avg Close — Range —
Q2 2025
Shares 2,905,000 Value ($000) $2,917 Avg Close — Range —
Q1 2025
Shares 3,007,000 Value ($000) $2,948 Avg Close — Range —
Q4 2024
Shares 2,914,000 Value ($000) $2,806 Avg Close — Range —
Q3 2024
Shares 3,277,000 Value ($000) $3,268 Avg Close — Range —
Q2 2024
Shares 30,020,000 Value ($000) $31,017 Avg Close — Range —
Q1 2024
Shares 29,857,000 Value ($000) $29,524 Avg Close — Range —
Q4 2023
Shares 30,030,000 Value ($000) $31,724 Avg Close — Range —
Q3 2023
Shares 23,902,000 Value ($000) $24,064 Avg Close — Range —
Q2 2023
Shares 23,964,000 Value ($000) $22,702 Avg Close — Range —
Q1 2023
Shares 24,061,000 Value ($000) $21,936 Avg Close — Range —
Q4 2022
Shares 24,332,000 Value ($000) $22,564 Avg Close — Range —
Q3 2022
Shares 24,472,000 Value ($000) $24,283 Avg Close — Range —
Q2 2022
Shares 20,373,000 Value ($000) $18,627 Avg Close — Range —