XPON · Expion360 Inc.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share. The RSUs vested in full on October 17, 2025.

On October 21, 2025, the Reporting Person filed a Form 4 reporting a grant of restricted stock units ("RSUs") made to the Reporting Person on October 17, 2025 that occurred on October 16, 2025 due to an administrative error. This amendment is being filed to correct the transaction date.

Reflects a grant of RSUs made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share. The RSUs vested in full on the grant date.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's Non-Employee Director Compensation Program. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to approximately $60,000 of shares of Common Stock as determined by the closing price on the grant date, October 16, 2025. The RSUs shall vest in full on October 16, 2026, subject to the Reporting Person's continued service as a director on the Company's board of directors through the vesting date.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on October 16, 2025.

Includes (i) 115,000 shares of Common Stock, and (ii) 33,925 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of November 20, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on October 16, 2025.

Includes (i) 115,057 shares of Common Stock, and (ii) 45,436 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of November 20, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Common Stock on the date the Options were conditionally approved by the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Plan. The Options were approved by the board of directors on April 28, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on July 31, 2025.

Includes (i) 122 shares of Common Stock, (ii) 5,000 RSUs, which were granted to the Reporting Person on July 31, 2025 as reported herein, and (iii) 5,400 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of July 31, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Issuer's common stock, par value $0.001 per share, on the date the Options were conditionally approved by the compensation committee of the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). The Options were approved by the compensation committee of the board of directors on April 9, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Common Stock on the date the Options were conditionally approved by the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Plan. The Options were approved by the board of directors on April 28, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on July 31, 2025.

Includes (i) 122 shares of Common Stock, (ii) 5,000 RSUs, which were granted to the Reporting Person on July 31, 2025 as reported herein, and (iii) 5,300 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of July 31, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Issuer's common stock, par value $0.001 per share, on the date the Options were conditionally approved by the compensation committee of the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). The Options were approved by the compensation committee of the board of directors on April 9, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Issuer's common stock, par value $0.001 per share, on the date the Options were conditionally approved by the compensation committee of the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). The Options were approved by the compensation committee of the board of directors on April 9, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

The exercise price of the Options (as defined below) was determined based on the closing price of the Common Stock on the date the Options were conditionally approved by the board of directors.

Reflects a grant of stock options (the "Options") made to the Reporting Person under the Plan. The Options were approved by the board of directors on April 28, 2025, subject to stockholder approval of an increase in the number of shares available for issuance under the Plan under which the Options were granted (the "Plan Amendment"). The Plan Amendment was approved by stockholders on July 31, 2025. The Options vested in full and became immediately exercisable on July 31, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on July 31, 2025.

Includes (i) 122 shares of Common Stock, (ii) 5,000 RSUs, which were granted to the Reporting Person on July 31, 2025 as reported herein, and (iii) 5,000 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of July 31, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on April 9, 2025.

Includes (i) 57 shares of Common Stock, (ii) 15,000 RSUs, which were granted to the Reporting Person on April 9, 2025 as reported herein, and (iii) 1,793 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of April 10, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on April 9, 2025.

Includes (i) 1,432 shares of Common Stock, (ii) 15,000 RSUs, which were granted to the Reporting Person on April 9, 2025 as reported herein, and (iii) 2,293 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of April 10, 2025.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The RSUs vested in full on April 9, 2025.

Includes (i) 15,000 RSUs, which were granted to the Reporting Person on April 9, 2025 as reported herein, and (ii) 897 shares of Common Stock, which the Reporting Person has the right to acquire upon the exercise of stock options exercisable within 60 days of April 10, 2025.

Reflects the weighted average price at which the shares of Common Stock, were sold. The shares were sold in multiple transactions at prices ranging from $1.53 to $1.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes 1,442,182 shares of Common Stock and 250,000 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Issuer's 2021 Incentive Award Plan.

Reflects the weighted average price at which the shares of the Issuer's common stock, par value $0.001 per share ("Common Stock"), were sold. The shares were sold in multiple transactions at prices ranging from $1.64 to $1.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to $12,000 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs shall vest in four equal installments on January 16, 2024, April 1, 2024, July 1, 2024 and October 1, 2024, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Reflects a grant of RSUs made to the Reporting Person under the Plan. The number of RSUs granted is equal to $9,000 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs vested in full on January 16, 2024.

Includes (i) 4,625 RSUs granted to the Reporting Person on January 16, 2024 under the Plan, which are subject to vesting as reported above, (ii) 58,332 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Plan, and (iii) 2,783 shares of Common Stock owned directly by the Reporting Person.

Reflects a grant of RSUs made to the Reporting Person under the Plan. The number of RSUs granted is equal to $13,520 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs vested in full on January 16, 2024.

Includes (i) 5,620 RSUs granted to the Reporting Person on January 16, 2024 under the Plan, which are subject to vesting as reported above, (ii) 208,332 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Plan, and (iii) 137,471 shares of Common Stock owned directly by the Reporting Person.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to $12,000 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs shall vest in four equal installments on January 16, 2024, April 1, 2024, July 1, 2024 and October 1, 2024, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Reflects the weighted average price at which the shares of the Issuer's common stock, par value $0.001 per share ("Common Stock"), were sold. The shares were sold in multiple transactions at prices ranging from $4.52 to $5.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares were sold pursuant to a Rule 10b5-1 trading plan.

Reflects 1,477,182 shares of Common Stock and 250,000 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Issuer's 2021 Incentive Award Plan.

Reflects a grant of RSUs made to the Reporting Person under the Plan. The number of RSUs granted is equal to $13,520 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs vested in full on January 16, 2024.

Includes (i) 5,620 RSUs granted to the Reporting Person on January 16, 2024 under the Plan, which are subject to vesting as reported above, and (ii) 158,332 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Plan.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to $12,000 divided by the closing price of the Common Stock on the grant date, which was January 16, 2024. The RSUs shall vest in four equal installments on January 16, 2024, April 1, 2024, July 1, 2024 and October 1, 2024, subject to the Reporting Person's continued service to the Issuer through each vesting date.

Reflects the weighted average price at which the shares of the Issuer's common stock, par value $0.001 per share ("Common Stock"), were sold. The shares were sold in multiple transactions at prices ranging from $4.50 to $4.70, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares were sold pursuant to a Rule 10b5-1 trading plan.

Reflects 1,500,177 shares of Common Stock and 185,375 shares of Common Stock issuable upon exercise of vested options issued to the Reporting Person under the Issuer's 2021 Incentive Award Plan.

Reflects the weighted average price at which the shares of common stock were sold. The shares were sold in multiple transactions at prices ranging from $3.80 to $4.105, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares were sold pursuant to a Rule 10b5-1 trading plan.

Reflects 1,523,252 shares of common stock and 185,375 shares of common stock issuable upon exercise of vested options issued to the Reporting Person under the Issuer's 2021 Incentive Award Plan.

Reflects a grant of stock options ("Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. The Options vest and become exercisable in 12 equal quarterly installments through June 30, 2026, with the first installment vesting commencing on September 30, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

Reflects a grant of stock options ("Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. The Options vest and become exercisable in 12 equal quarterly installments through June 30, 2026, with the first installment vesting commencing on September 30, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

Reflects a grant of stock options ("Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. The Options vest and become exercisable in 12 equal quarterly installments through June 30, 2026, with the first installment vesting commencing on September 30, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's Non-Employee Director Compensation Program. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to approximately $60,000 of shares of Common Stock as determined by the closing price on the grant date, August 23, 2023. The RSUs shall vest in full on August 23, 2024, subject to the Reporting Person's continued service as a director on the Company's board of directors through the vesting date.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's Non-Employee Director Compensation Program. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to approximately $60,000 of shares of Common Stock as determined by the closing price on the grant date, August 23, 2023. The RSUs shall vest in full on August 23, 2024, subject to the Reporting Person's continued service as a director on the Company's board of directors through the vesting date.

Reflects a grant of stock options ("Options") made to the Reporting Person under the Issuer's 2021 Incentive Award Plan. The Options vest and become exercisable in 12 equal quarterly installments through June 30, 2026, with the first installment vesting commencing on September 30, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

Reflects a grant of restricted stock units ("RSUs") made to the Reporting Person under the Issuer's Non-Employee Director Compensation Program. Each RSU represents a contingent right to receive one share of the Issuer's common stock, par value $0.001 per share ("Common Stock"). The number of RSUs granted is equal to approximately $60,000 of shares of Common Stock as determined by the closing price on the grant date, August 23, 2023. The RSUs shall vest in full on August 23, 2024, subject to the Reporting Person's continued service as a director on the Company's board of directors through the vesting date.

This Form 4 is being filed to amend the exercise price of the granted options previously reported as being $3.35 to $3.36. In addition, the original Form 4 also inadvertently reported the grant of options in Table I and this Form 4 correctly reports the grant of options in Table II.

This Form 4 is being filed to amend the exercise price of the granted options previously reported as being $3.35 to $3.36.

This Form 4 is being filed to amend the number of options previously reported as being granted from 250,000 to 179,500 and to amend the exercise price of the granted options previously reported as being $3.69 to $3.70. In addition, the original Form 4 also inadvertently reported the grant of options in Table I and this Form 4 correctly reports the grant of options in Table II.

This Form 4 is being filed to amend the exercise price of the granted options previously reported as being $3.35 to $3.36 and to amend the title of the underlying securities previously reported as being "Options" to "Common Stock".

This Form 4 is being filed to amend the exercise price of the granted options previously reported as being $3.35 to $3.36.

This Form 4 is being filed to amend the exercise price of the granted options previously reported as being $3.35 to $3.36.