Alliant Energy Corp: director Asthana Manu received 1,157.935 shares

What happened
Asthana Manu, a director, received a derivative award of 1,157.935 units reported as 1,157.935 shares at $65.85 per share on Oct 9, 2026, for $76,250.

Key details

• Transaction date and price: Oct 9, 2026; $65.85 per share; transaction code A (award/acquisition), derivative.
• Shares owned after the transaction: not reported in this filing.
• Footnotes:
  • F1: Units are to be settled in shares of common stock upon the reporting person's termination of services as a director.
  • F2: Includes adjustments for accrued dividends, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.
• Form filed: Oct 14, 2026 (reporting period Oct 9, 2026).

Why it may matter
This was a derivative award to be settled in common shares upon termination of the reporting person's service as a director and was not a market purchase or sale. The filing does not show why the insider traded or why the company acted.