ALLIANT ENERGY CORP

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

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025
Shares 1,415,000 Value ($000) $1,490 Avg Close — Range —
Q3 2025
Shares 1,415,000 Value ($000) $1,525 Avg Close — Range —
Q2 2025
Shares 1,415,000 Value ($000) $1,473 Avg Close — Range —
Q1 2025
Shares 1,415,000 Value ($000) $1,521 Avg Close — Range —
Q4 2024
Shares 1,415,000 Value ($000) $1,470 Avg Close — Range —
Q3 2024
Shares 1,355,000 Value ($000) $1,421 Avg Close — Range —
Q2 2024
Shares 22,535,000 Value ($000) $22,443 Avg Close — Range —
Q1 2024
Shares 13,400,000 Value ($000) $13,202 Avg Close — Range —