CEPL · Capstone Energy Plus, Inc.

Represents shares of voting common stock granted pursuant to restricted stock awards that vest in three equal annual installments on May 12, 2027, May 12, 2028 and May 12, 2029, subject to the reporting person's continued service through each applicable vesting date.

Includes 150,000 shares of voting common stock underlying restricted stock units that vest on March 11, 2027, 16,667 shares of voting common stock underlying restricted stock units that vest in two equal annual installments on September 9, 2026, and September 9, 2027, respectively, and 32,833 shares of voting common stock underlying restricted stock units that vest in two equal annual installments on April 3, 2027, and April 3, 2028, respectively.

Represents shares of voting common stock granted pursuant to restricted stock awards that vest in three equal annual installments on April 27, 2027, April 27, 2028 and April 27, 2029, subject to the reporting person's continued service through each applicable vesting date.

Includes 80,000 shares of voting common stock underlying restricted stock units that fully vest three years from the date of grant, September 8, 2025, subject to continued service with the Issuer, and 10,000 shares of voting common stock purchased in the Issuer private offering.

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units awarded on April 3, 2025..

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units awarded on March 11, 2024.

Includes 300,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on March 11, 2026, and March 11, 2027, respectively, 16,667 shares of voting common stock underlying restricted stock units that vest in equal annual installments on September 9, 2026, and September 9, 2027, respectively, 49,250 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026 and 75,000 shares of voting common stock purchased in the Issuer private offering.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 4,149 shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer and 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 80,000 shares of voting common stock underlying restricted stock units that fully vest three years from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 4,149 shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer and 2,232 shares of voting common stock underlying restricted stock units that fully vest on June 24, 2026.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 4,149 shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer and 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 4,149 shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock purchased in the Issuer private offering.

Includes 300,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on March 11, 2026, and March 11, 2027, respectively, 16,667 shares of voting common stock underlying restricted stock units that vest in equal annual installments on September 9, 2026, and September 9, 2027, respectively, and 49,250 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026.

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units vested on September 9, 2025.

Includes 30,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on September 9, 2026, and September 9, 2027, respectively, and 45,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026.

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units vested on September 9, 2025.

Includes 300,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on March 11, 2026, and March 11, 2027, respectively, 16,667 shares of voting common stock underlying restricted stock units that vest in equal annual installments on September 9, 2026, and September 9, 2027, respectively, and 49,250 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest three years from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 2,232 shares of voting common stock underlying restricted stock units that fully vest on June 24, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 12,658 shares of voting common stock underlying restricted stock units that fully vest on February 12, 2026.

Represents shares underlying restricted stock units that vest one year from the date of grant, subject to continued service as a director.

Represents shares of voting common stock underlying restricted stock units that fully vested on the date of grant.

Includes 2,625 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025 and 2,625 of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026.

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units awarded on June 11, 2025.

Includes 2,625 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025 and 2,625 of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on April 3, 2026.

Represents shares of voting common stock underlying restricted stock units vesting in three equal annual installments commencing on April 3, 2026.

Includes 300,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on March 11, 2026 and March 11, 2027, respectively, and 25,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025.

Represents shares of voting common stock underlying restricted stock units vesting in three equal annual installments commencing on April 3, 2026.

Includes 45,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025.

Represents shares of voting common stock underlying restricted stock units vesting in three equal annual installments commencing on April 3, 2026.

Includes 2,625 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025.

Represents shares of voting common stock underlying restricted stock units that fully vested on the date of grant.

Includes 45,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units awarded on April 1, 2025.

Includes 45,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025

Reflects the deemed disposition of shares of voting common stock to cover the Reporting Person's tax liability in connection with the vesting and settlement of the restricted stock units awarded on March 11, 2025.

Includes 300,000 shares of voting common stock underlying restricted stock units that vest in equal annual installments on March 11, 2026 and March 11, 2027, respectively, and 25,000 shares of voting common stock underlying restricted stock units that vest in three equal annual installments commencing on September 9, 2025.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Represents shares of voting common stock underlying restricted stock units that fully vest one year from the date of grant, subject to continued service with the Issuer.

Includes 10,000 shares of voting common stock underlying restricted stock units that fully vest on February 26, 2025.

Represents shares underlying restricted stock units vesting in three equal annual installments commencing on September 9, 2025.

Represents shares underlying restricted stock units vesting in three equal annual installments commencing on September 9, 2025.

Represents shares underlying restricted stock units vesting in three equal annual installments commencing on September 9, 2025.

Represents shares underlying restricted stock units vesting in three equal annual installments commencing on April 15, 2025.

Represents shares underlying restricted stock units vesting in three equal annual installments commencing on March 11, 2025.

Represents shares underlying restricted stock units that vest one year from the date of grant.

On September 28, 2023, Capstone Green Energy Corporation (the Issuer) and its wholly-owned subsidiaries, Capstone Turbine International, Inc. (Capstone Turbine International) and Capstone Turbine Financial Services, LLC (together with Capstone Turbine International and the Issuer, the Debtors) filed voluntary petitions (the Chapter 11 Cases) for relief under chapter 11 of title 11 (Chapter 11) of the United States Code in the United States Bankruptcy Court for the District of Delaware (the Bankruptcy Court). On November 14, 2023, the Bankruptcy Court entered an order (the Confirmation Order) confirming the Chapter 11 plan of reorganization of the Debtors in the Chapter 11 Cases, including its supplement and all exhibits and schedules thereto, and all other documents filed in connection with such plan (the Plan). On December 7, 2023 (the Effective Date), the Plan was consummated and became effective in accordance with its terms, and the Debtors emerged from the Chapter 11 Cases.

On the Effective Date, in connection with the satisfaction of the conditions to effectiveness set forth in the Conformation Order and the Plan, the Issuer completed a series of transactions pursuant to which, among other things, the Issuer became a private company that continues to own certain assets of the Issuer and (i) all of the Issuers common shares outstanding prior to the Effective Date were canceled, released, and extinguished, and of no further force or effect and (ii) all of the Issuers equity award agreements under any incentive plan, and the awards granted pursuant thereto, were extinguished, canceled, and discharged and have no further force or effect. In addition, Capstone Turbine International was renamed Capstone Green Energy Holdings, Inc. (Holdings) and is the successor to the Issuer pursuant to Rule 12g-3 under the Securities Exchange Act of 1934, as amended.

This Form 4 shall constitute an exit filing for the Reporting Person with respect to the Issuer. Mr. Flexon will continue as a Director and as Interim President and Chief Executive Officer of Holdings.

On September 28, 2023, Capstone Green Energy Corporation (the Issuer) and its wholly-owned subsidiaries, Capstone Turbine International, Inc. (Capstone Turbine International) and Capstone Turbine Financial Services, LLC (together with Capstone Turbine International and the Issuer, the Debtors) filed voluntary petitions (the Chapter 11 Cases) for relief under chapter 11 of title 11 (Chapter 11) of the United States Code in the United States Bankruptcy Court for the District of Delaware (the Bankruptcy Court). On November 14, 2023, the Bankruptcy Court entered an order (the Confirmation Order) confirming the Chapter 11 plan of reorganization of the Debtors in the Chapter 11 Cases, including its supplement and all exhibits and schedules thereto, and all other documents filed in connection with such plan (the Plan). On December 7, 2023 (the Effective Date), the Plan was consummated and became effective in accordance with its terms, and the Debtors emerged from the Chapter 11 Cases.

On the Effective Date, in connection with the satisfaction of the conditions to effectiveness set forth in the Conformation Order and the Plan, the Issuer completed a series of transactions pursuant to which, among other things, the Issuer became a private company that continues to own certain assets of the Issuer and (i) all of the Issuers common shares outstanding prior to the Effective Date were canceled, released, and extinguished, and of no further force or effect and (ii) all of the Issuers equity award agreements under any incentive plan, and the awards granted pursuant thereto, were extinguished, canceled, and discharged and have no further force or effect. In addition, Capstone Turbine International was renamed Capstone Green Energy Holdings, Inc. (Holdings) and is the successor to the Issuer pursuant to Rule 12g-3 under the Securities Exchange Act of 1934, as amended.

This Form 4 shall constitute an exit filing for the Reporting Person with respect to the Issuer. Mr. Powelson will continue as a Director of Holdings.

On September 28, 2023, Capstone Green Energy Corporation (the Issuer) and its wholly-owned subsidiaries, Capstone Turbine International, Inc. (Capstone Turbine International) and Capstone Turbine Financial Services, LLC (together with Capstone Turbine International and the Issuer, the Debtors) filed voluntary petitions (the Chapter 11 Cases) for relief under chapter 11 of title 11 (Chapter 11) of the United States Code in the United States Bankruptcy Court for the District of Delaware (the Bankruptcy Court). On November 14, 2023, the Bankruptcy Court entered an order (the Confirmation Order) confirming the Chapter 11 plan of reorganization of the Debtors in the Chapter 11 Cases, including its supplement and all exhibits and schedules thereto, and all other documents filed in connection with such plan (the Plan). On December 7, 2023 (the Effective Date), the Plan was consummated and became effective in accordance with its terms, and the Debtors emerged from the Chapter 11 Cases.

On the Effective Date, in connection with the satisfaction of the conditions to effectiveness set forth in the Conformation Order and the Plan, the Issuer completed a series of transactions pursuant to which, among other things, the Issuer became a private company that continues to own certain assets of the Issuer and (i) all of the Issuers common shares outstanding prior to the Effective Date were canceled, released, and extinguished, and of no further force or effect and (ii) all of the Issuers equity award agreements under any incentive plan, and the awards granted pursuant thereto, were extinguished, canceled, and discharged and have no further force or effect. In addition, Capstone Turbine International was renamed Capstone Green Energy Holdings, Inc. (Holdings) and is the successor to the Issuer pursuant to Rule 12g-3 under the Securities Exchange Act of 1934, as amended.

This Form 4 shall constitute an exit filing for the Reporting Person with respect to the Issuer. Ms. Fu will continue as a Director of Holdings.