ALLIANT ENERGY CORP

CUSIP: 018802AC2 Class: NOTE 3.875% 3/1

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q4 2025
Shares 8,319,000 Value ($000) $8,760 Avg Close — Range —
Q3 2025
Shares 11,380,000 Value ($000) $12,268 Avg Close — Range —
Q2 2025
Shares 11,680,000 Value ($000) $12,025 Avg Close — Range —
Q1 2025
Shares 11,680,000 Value ($000) $12,515 Avg Close — Range —
Q4 2024
Shares 17,207,000 Value ($000) $17,740 Avg Close — Range —
Q3 2024
Shares 19,185,000 Value ($000) $20,135 Avg Close — Range —
Q2 2024
Shares 18,570,000 Value ($000) $18,587 Avg Close — Range —