SR · Spire Inc

The transaction reported represents an intra-plan transfer through the reporting person's 401(k) plan from one fund into the Issuer's company stock fund that is exempt from Section 16(b) pursuant to Rule 16b-3(f).

Total shares held in Company stock fund of 401(k) plan as reported by trustee as of June 15, 2026.

On February 13, 2026, Spire completed the previously announced redemption of all outstanding shares of Series A Preferred Stock and the corresponding depositary shares representing fractional interests in the Series A Preferred Stock. The Series A Preferred Stock will cease to accumulate dividends immediately prior to the redemption date of February 13, 2026. Upon redemption, the Series A Preferred Stock (or related depositary shares) will no longer be outstanding, and all rights of the holders will terminate, except the right of the holders to receive the cash payable upon such redemption, without interest.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents award of time-vested restricted stock that vests on August 5, 2026.

Price as of the close of business on February 5, 2026.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 3,420 shares of time-vested restricted stock. These shares were originally reported to vest on January 17, 2026, but that date fell on a Saturday and Monday, January 19, 2026 was a Securities and Exchange Commission holiday.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 420 shares of time-vested restricted stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 711 performance contingent restricted units.

Represents the number of shares of phantom stock withheld for the payment of taxes incident to the vesting of 1,238 shares of vested performance contingent stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 1,421 performance contingent restricted units.

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 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 370 shares of time-vested restricted stock.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents performance contingent restricted 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 restricted stock performance units that vested and settled in stock based on performance metrics not tied to the market price of the Company's stock.

Represents phantom stock vesting to the reporting person pursuant to his election to defer into his deferred income plan account 1,238 shares of performance contingent stock. Each share of phantom stock is the economic equivalent of one share of Spire Inc. common stock. Shares of phantom stock are payable for 15 years commencing 6 months following the reporting person's separation from employment.

Represents phantom stock vesting to the reporting person pursuant to his election to defer into his deferred income plan account 370 shares of time-vested restricted stock. Each share of phantom stock is the economic equivalent of one share of Spire Inc. common stock. Shares of phantom stock are payable for 15 years commencing 6 months following the reporting person's separation from employment.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 210 shares of time-vested restricted stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 350 shares of time-vested restricted stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 1,476 performance contingent restricted stock units.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 175 shares of time-vested restricted stock.

The beginning balance accounts for 885 shares that were reported on the initial Form 3 but were omitted from the reporting person's subsequently filed Form 4s.

Represents performance contingent restricted 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 of phantom stock withheld for the payment of taxes incident to the vesting of 590 shares of vested performance contingent stock.

Represents the number of shares of phantom stock withheld for the payment of taxes incident to the vesting of 175 shares of vested time-vested restricted stock.

Represents performance contingent restricted units that vested and settled in stock based on performance metrics not tied to the market price of the Company's stock.

Represents phantom stock vesting to the reporting person pursuant to his election to defer into his deferred income plan account 442 shares of performance contingent stock. Each share of phantom stock is the economic equivalent of one share of Spire Inc. common stock. Shares of phantom stock are payable for 15 years commencing 6 months following the reporting person's separation from employment.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 440 shares of time-vested stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 140 shares of time-vested restricted stock.

Represents the number of shares withheld for the payment of taxes incident to the vesting of 398 shares of time-vested restricted stock.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents award of time-vested restricted stock that vests on November 18, 2028.

Represents phantom stock vesting to the reporting person pursuant to his election to defer into his deferred income plan account 590 shares of performance contingent stock. Each share of phantom stock is the economic equivalent of one share of Spire Inc. common stock. Shares of phantom stock are payable in cash to the reporting person in January 2027 and can be transferred to other investments within the reporting person's deferred income plan account at any time at least six months after vesting.

Represents phantom stock vesting to the reporting person pursuant to his election to defer into his deferred income plan account 175 shares of time-vested restricted stock. Each share of phantom stock is the economic equivalent of one share of Spire Inc. common stock. Shares of phantom stock are payable in cash to the reporting person in January 2027 and can be transferred to other investments within the reporting person's deferred income plan account at any time at least six months after vesting.

Represents the number of shares of phantom stock withheld for the payment of taxes incident to the vesting of 370 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 award of time-vested restricted stock that vests November 18, 2028.

Includes shares acquired through the Dividend Reinvestment Plan.