Valcq Rebecca C. 4/A

What Happened Rebecca C. Valcq, Vice President of Alliant Energy Corp (LNT), had 438 shares withheld by the issuer to satisfy tax withholding obligations related to the vesting/settlement of restricted stock units. The withholding was recorded at $70.01 per share for a total value of $30,664. This was a withholding for taxes, not an open-market sale by the reporting person.

Key Details

• Transaction date: 2026-02-19; Price: $70.01 per share; Shares withheld/disposed: 438; Value: $30,664.
• Filing: Amended Form 4 filed 2026-03-19 to disclose the previously omitted withholding.
• Footnote: F1 — Shares were withheld by the issuer to satisfy tax obligations and do not represent a sale by the reporting person.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Timeliness: The amendment was filed about one month after the transaction to correct an omission in the original Form 4.

Context Share withholding to cover taxes on vested restricted stock units is a routine administrative action and does not necessarily indicate a change in the insider’s market view. This filing corrects the record; no open-market sale or purchase by the insider is reported here.