X0508 4 2025-11-18 false 0001126956 SPIRE INC SR 0002096832 Lalov Boyan N. 700 MARKET STREET ST. LOUIS MO 63101 false true false false Vice President and Treasurer false Common Stock 2025-11-18 4 F false 41.00 86.16 D 519.00 D Common Stock 2025-11-18 4 A false 477.00 86.16 A 996.00 D Common Stock 2025-11-18 4 F false 136.00 86.16 D 860.00 D Common Stock 2025-11-18 4 A false 290.00 86.16 A 1150.00 D Common Stock 552.899 I Held in 401(k) Represents the number of shares withheld for the payment of taxes incident to the vesting of 140 shares of time-vested restricted stock. Represents performance contingent restricted stock units that vested and settled in stock based on performance metrics not tied to the market price of the Company's stock. Represents the number of shares withheld for the payment of taxes incident to the vesting of 477 performance contingent restricted stock units. Represents award of time-vested restricted stock that vests on November 18, 2028. Shares held in Company stock fund of 401(k) plan as reported by trustee as of November 17, 2025. Courtney Vomund as attorney in fact for Lalov Boyan N. 2025-11-19