ALLIANT ENERGY CORP

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

Magnetar Financial LLC's Holding History (CIK: 0001352851)

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

Q3 2025
Shares 21,000,000 Value ($000) $22,621 Avg Close — Range —
Q2 2025
Shares 10,000,000 Value ($000) $10,298 Avg Close — Range —
Q1 2025
Shares 8,500,000 Value ($000) $9,129 Avg Close — Range —