10. Stockholders’ (Deficiency) Equity

The following table summarizes, by consolidated statements of operations line item, stock-based compensation expense (in thousands):

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2000 and 2017 Equity Incentive Plans

In June 2017, the Company’s Board adopted the Capstone Green Energy Corporation 2017 Equity Incentive Plan (the “2017 Plan”), which was approved by the stockholders at the Company’s 2017 annual meeting of stockholders on August 31, 2017 (the “2017 Annual Meeting”). The 2017 Plan initially provided for awards of up to 300,000 shares of Common Stock. The 2017 Plan is administered by the Compensation and Human Capital Committee designated by the Board (the “Compensation Committee”). The Compensation Committee’s authority includes determining the number of incentive awards and vesting provisions. On June 5, 2018, the Company’s Board of Directors adopted an amendment of the 2017 Plan to increase the aggregate number of shares of Common Stock authorized for issuance under the 2017 Plan by 300,000 shares of Common Stock. The amendment of the 2017 Plan was approved by the Company’s stockholders at

the 2018 annual meeting of stockholders on August 30, 2018. Since this time, the Company’s stockholders have approved amendments to increase the aggregate number of shares authorized for issuance under the 2017 Plan by an additional 1,600,000 shares of Common Stock, including, most recently, on June 2, 2021, the Company’s Board of Directors adopted Amendment No. 4 (the “Plan Amendment”) of the 2017 Plan to increase the aggregate number of shares of Common Stock authorized for issuance under the 2017 Plan by 500,000 shares of Common Stock. The Plan amendment was approved by the Company’s stockholders at the 2021 annual meeting of stockholders on August 27, 2021.

As of March 31, 2022, there were 814,708 shares available for future grants under the 2017 Plan.

Restricted Stock Units and Performance Restricted Stock Units

The Company issued restricted stock units under the Company’s 2000 Equity Incentive Plan, as well as issued (and may in the future issue) restricted stock units under the 2017 Plan to employees, non-employee directors and consultants. The restricted stock units are valued based on the closing price of the Company’s Common Stock on the date of issuance, and compensation cost is recorded on a straight-line basis over the vesting period. The restricted stock units issued to employees vest over a period of two, three or four years. For restricted stock units with two year vesting, 100% vests on the second year anniversary. For restricted stock units with three year vesting, one-third vest annually beginning one year after the issuance date. For restricted stock units with four year vesting, one-fourth vest annually beginning one year after the issuance date. The restricted stock units issued to non-employee directors vest one year after the issuance date. The following table summarizes restricted stock unit and performance restricted stock unit (“PRSU”) activity during Fiscal 2022:

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The following table provides additional information on restricted stock units and performance restricted stock units:

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As of March 31, 2022, there was approximately $2.1 million of total compensation cost related to unvested restricted stock units that is expected to be recognized as expense over a weighted average period of 2.2 years.

The Company’s PRSU activity is included in the above restricted stock units tables. The PRSU program has a three-year performance measurement period. The performance measurement occurs in the third year (for a three-year grant) following the grant date. The program is intended to have overlapping performance measurement periods (e.g., a new three-year cycle begins each year on April 1), subject to Compensation Committee approval. At the end of each

performance measurement period, the Compensation Committee will determine the achievement against the performance objectives.

During Fiscal 2022, the Company granted 35,986 PRSUs with a third-year performance measurement and the criteria measured by the Company’s cash flow from operations and aftermarket sales absorption. There were no PRSUs granted during Fiscal 2021. The target PRSU awards for each participant, will be paid upon achievement of the target level of performance for cash flow from operations and aftermarket sale absorption, taking into account the applicable weighing for the individual metric. Achievement of a performance goal at the threshold level will result in a payment that is 50% of the target PRSU award. Achievement of a performance goal at the maximum level will result in a payment that is 150% of the target PRSU award. The Compensation Committee will use an interpolation table that weighs performance between levels for determining the portion of the Target PRSU that is earned.

The weighted average per share grant date fair value of PRSUs granted during Fiscal 2022 was $8.39. Based on the Company’s assessment as of March 31, 2022, the Company will not meet the threshold of the performance measurements, and as a result, no compensation expense was recorded during Fiscal 2022. Compensation expense is recognized over the corresponding requisite service period and will be adjusted in subsequent reporting periods if the Company’s assessment of the probable level of achievement of the performance goals change. The Company will continue to assess the likelihood of the PRSU threshold being met until the end of the applicable performance period.

Stockholder Rights Plan

On May 6, 2019, the Board declared a dividend of one right (a “New Right”) for each of the Company’s issued and outstanding shares of Common Stock. The dividend was paid to the stockholders of record at the close of business on May 16, 2019 (the “Record Date”). Each New Right entitles the registered holder, subject to the terms of the NOL Rights Agreement (as defined below), to purchase from the Company one one-thousandth of a share of the Company’s Series B Junior Participating Preferred Stock (the “Preferred Stock”) at a price of $5.22 (the “Exercise Price”), subject to certain adjustments. The description and terms of the New Rights are set forth in the Rights Agreement dated as of May 6, 2019 (the “NOL Rights Agreement”) between the Company and Broadridge Financial Solutions, Inc., as Rights Agent (the “Rights Agent”).

The NOL Rights Agreement replaced the Company’s Rights Agreement, dated May 6, 2016, by and between the Company and Broadridge Financial Solutions, Inc., as successor-in-interest to Computershare Inc., as rights agent (the “Original Rights Agreement”). The Original Rights Agreement, and the rights thereunder to purchase fractional shares of Preferred Stock, expired at 5:00 p.m., New York City time, on May 6, 2019 and the NOL Rights Agreement was entered into immediately thereafter.

The purpose of the NOL Rights Agreement is to diminish the risk that the Company’s ability to use its net operating losses and certain other tax assets (collectively, “Tax Benefits”) to reduce potential future federal income tax obligations would become subject to limitations by reason of the Company’s experiencing an “ownership change,” as defined in Section 382 of the Internal Revenue Code of 1986, as amended (the “Tax Code”). A company generally experiences such an ownership change if the percentage of its stock owned by its “5-percent shareholders,” as defined in Section 382 of the Tax Code, increases by more than 50 percentage points over a rolling three-year period. The NOL Rights Agreement is designed to reduce the likelihood that the Company will experience an ownership change under Section 382 of the Tax Code by (i) discouraging any person or group from becoming a 4.9% or greater shareholder and (ii) discouraging any existing 4.9% or greater shareholder from acquiring additional shares of the Company’s stock.

The New Rights will not be exercisable until the earlier to occur of (i) the close of business on the tenth business day after a public announcement or filing that a person has, or group of affiliated or associated persons have, become an “Acquiring Person,” which is defined as a person or group of affiliated or associated persons who, at any time after the date of the NOL Rights Agreement, have acquired, or obtained the right to acquire, beneficial ownership of 4.9% or more of the Company’s outstanding shares of Common Stock, subject to certain exceptions or (ii) the close of business on the

tenth business day after the commencement of, or announcement of an intention to commence, a tender offer or exchange offer the consummation of which would result in any person becoming an Acquiring Person (the earlier of such dates being called the “Distribution Date”). Certain synthetic interests in securities created by derivative positions, whether or not such interests are considered to be ownership of the underlying Common Stock or are reportable for purposes of Regulation 13D of the Exchange Act, are treated as beneficial ownership of the number of shares of Common Stock equivalent to the economic exposure created by the derivative position, to the extent actual shares of the Common Stock are directly or indirectly held by counterparties to the derivatives contracts.

With respect to certificates representing shares of Common Stock outstanding as of the Record Date, until the Distribution Date, the New Rights will be evidenced by such certificates for shares of Common Stock registered in the names of the holders thereof, and not by separate Rights Certificates, as described further below. With respect to book entry shares of Common Stock outstanding as of the Record Date, until the Distribution Date, the New Rights will be evidenced by the balances indicated in the book entry account system of the transfer agent for the Common Stock. Until the earlier of the Distribution Date and the Expiration Date, as described below, the transfer of any shares of Common Stock outstanding on the Record Date will also constitute the transfer of the New Rights associated with such shares of Common Stock. As soon as practicable after the Distribution Date, separate certificates evidencing the New Rights (“Right Certificates”) will be mailed to holders of record of the Common Stock as of the close of business on the Distribution Date, and such Right Certificates alone will evidence the New Rights.

The New Rights, which are not exercisable until the Distribution Date, will expire prior to the earliest of (i) May 6, 2022 or such later day as may be established by the Board prior to the expiration of the New Rights, provided that the extension is submitted to the Company’s stockholders for ratification at the next annual meeting of stockholders of the Company succeeding such extension; (ii) the time at which the New Rights are redeemed pursuant to the NOL Rights Agreement; (iii) the time at which the New Rights are exchanged pursuant to the NOL Rights Agreement; (iv) the time at which the New Rights are terminated upon the occurrence of certain transactions; (v) the close of business on the first day after the Company’s 2019 annual meeting of stockholders, if approval by the stockholders of the Company of the NOL Rights Agreement has not been obtained on or prior to the close of business on the first day after the Company’s 2019 annual meeting of stockholders; (vi) the close of business on the effective date of the repeal of Section 382 of the Tax Code, if the Board determines that the NOL Rights Agreement is no longer necessary or desirable for the preservation of Tax Benefits; and (vii) the close of business on the first day of a taxable year of the Company to which the Board determines that no Tax Benefits are available to be carried forward, (the earliest of (i), (ii), (iii), (iv), (v), (vi) and (vii) is referred to as the “Expiration Date”). On April 7, 2022, our Board approved an extension of the NOL Rights Agreement from May 6, 2022 to May 6, 2025, subject to obtaining shareholder approval ratifying such extension.  

Each share of Preferred Stock will be entitled, when, as and if declared, to a preferential per share quarterly dividend payment equal to the greater of (i) $1.00 per share or (ii) an amount equal to 1,000 times the aggregate quarterly dividend declared per share of Common Stock since the immediately preceding quarterly dividend payment date for the Common Stock (or, with respect to the first quarterly dividend payment on the Common Stock, since the first issuance of the Preferred Stock). Each share of Preferred Stock will entitle the holder thereof to 1,000 votes on all matters submitted to a vote of the stockholders of the Company. In the event of any merger, consolidation or other transaction in which shares of Common Stock are converted or exchanged, each share of Preferred Stock will be entitled to receive 1,000 times the amount received per one share of Common Stock.

Offerings of Common Stock and Warrants and At-the-Market Offering Program

At-the-Market Offering

On June 7, 2018, we entered into a Sales Agreement with H.C. Wainwright & Co., LLC (the “Sales Agreement”) with respect to an at-the-market offering program (the “ATM Program”) pursuant to which we may offer and sell, from time to time at our sole discretion, shares of our Common Stock, having an aggregate offering price of up to $25.0 million. We will set the parameters for sales of the shares, including the number to be sold, the time period during which sales are

requested to be made, any limitation on the number that may be sold in one trading day and any minimum price below which sales may not be made. On July 15, 2020, we entered into an amendment to the Sales Agreement, which modified the Sales Agreement to, among other things, amend the termination provisions of the Agreement and amend the maximum amount of shares of our Common Stock that we may offer and sell through or to H.C. Wainwright & Co., LLC from time to time under the ATM Program. On March 19, 2021, we entered into a second amendment to the Sales Agreement, which modified the Sales Agreement to, among other things, reflect our filing of a new Registration Statement on Form S-3 with the SEC on March 22, 2021 and set the maximum amount of shares of our Common Stock that we may offer and sell through or to H.C. Wainwright at $50 million from the date of the amendment to the Sales Agreement, subject to certain limitations set forth in the amendment. During Fiscal 2022, we issued approximately 0.1 million shares of our Common Stock under the ATM program and the net proceeds to us from the sale of our Common Stock were approximately $0.7 million after deducting commissions paid of approximately $26,000. As of March 31, 2022, approximately $49.3 million remained available for issuance with respect to this ATM Program.

Warrants

Goldman Warrant

On February 4, 2019, the Company sold to Goldman Sachs & Co. LLC (the “Holder”), a Purchase Warrant for Common Shares (the “Warrant”) pursuant to which the Holder may purchase shares of the Company’s Common Stock in an aggregate amount of up to 404,634 shares (the “Warrant Shares”). The Warrant was sold to the Holder at a purchase price of $150,000, in a private placement exempt from registration under the Securities Act. The Warrant may be exercised by the Holder at any time after August 4, 2019 at an exercise price equal to $8.86 and will expire on February 4, 2024. The Warrant contains standard adjustment provisions in the event of additional stock issuances below the exercise price of the warrant, stock splits, combinations, rights offerings and similar transactions. The value of the Warrant was $2.3 million, and has been classified as an equity instrument in additional paid in capital in the Company’s condensed consolidated balance sheets. As of March 31, 2022, the Holder may purchase shares of the Company’s Common Stock in an aggregate amount of up to 463,067 shares.

On December 9, 2019, the Company entered into an Amendment No. 1 to the Purchase Warrant for Common Shares (the “Amendment No. 1”) with Special Situations Investing Group II, LLC (as successor in interest to Goldman Sachs & Co. LLC) (the “Warrant Holder”) that amends the Warrant. The Amendment No. 1 amended the Warrant to increase the number of Warrant Shares issuable under the Warrant (on a post-reverse split basis) and to decrease the exercise price from $8.86 per share (on a post-reverse split basis) to $3.80 per share (the “Per Share Warrant Exercise Price”). The Amendment No. 1 also amends the Warrant such that the Per Share Anti-Dilution Price is equal to the Per Share Warrant Exercise Price. As a result of the decrease in exercise price, the Company recorded the change in valuation of $0.3 million as additional debt discount with a corresponding entry to additional paid-in capital in the condensed consolidated balance sheets and statements of stockholders equity.

On June 16, 2020, the Company entered into an Amendment No. 2 to the Purchase Warrant for Common Shares (“Amendment No. 2”) with the Warrant Holder to increase the number of Warrant Shares (as defined therein) issuable under the Warrant and to decrease the exercise price from $3.80 per share to $2.61 per share (the “Per Share Warrant Exercise Price”). The Company would receive aggregate gross proceeds of $1,186,313 if the outstanding Warrant is exercised at the new Per Share Warrant Exercise Price.

Amendment No. 2 also amends the Warrant such that the Per Share Anti-Dilution Price (as defined therein) is equal to the Per Share Warrant Exercise Price as provided in the Amendment No. 2 to the Warrant. As a result of the decrease in exercise price, the Company recorded the change in valuation of $0.1 million as additional debt discount with a corresponding entry to additional paid in capital in the condensed consolidated balance sheets and statements of stockholders equity. All other terms and provisions in the Warrant remain in effect.

Goldman “2020 Warrant”

On October 1, 2020, the Company entered into an Amendment No. 3 to the Purchase Warrant for Common Shares (the “Amendment No. 3”) with Special Situations Investing Group II, LLC (as successor in interest to Goldman Sachs & Co. LLC) (the “Warrant Holder”) that amends that certain Purchase Warrant for Common Shares originally issued by the Company to Goldman Sachs & Co. LLC, dated February 4, 2019, as amended (the “Original Warrant”). Amendment No. 3 amends the Original Warrant to amend Section 2.1, Section 2.2(c) and Section 18.1 of the Warrant to, among other things, make certain changes necessitated by the issuance of a second Warrant (the “2020 Warrant”) to the Warrant Holder pursuant to the Company’s entry into the Amended & Restated (“A&R”) Note Purchase Agreement (See Note 12 – Term Note Payable).

On October 1, 2020, and pursuant to the Company’s entry into the A&R Note Purchase Agreement, the Company sold to the Warrant Holder the 2020 Warrant to purchase up to 291,295 shares (the “2020 Warrant Shares”) of the Company’s Common Stock. The 2020 Warrant was sold to the Warrant Holder at a purchase price of $10,000, in a private placement exempt from registration under the Securities Act. The 2020 Warrant may be exercised by the Warrant Holder at any time after October 1, 2020 at an exercise price equal to $4.76 and will expire on February 4, 2024. The Warrant contains standard adjustment provisions in the event of additional stock issuances below the exercise price of the warrant, stock splits, combinations, rights offerings and similar transactions. The value of the Warrant was $0.8 million, and has been classified as an equity instrument in additional paid in capital in the Company’s consolidated balance sheets.  The value of the Warrant was determined using the Black-Scholes Option Pricing model using the following assumptions:

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September 2019 Pre-Funded and Series D Warrants

On September 4, 2019, the Company entered into a Securities Purchase Agreement (the “Securities  Purchase Agreement”) with certain institutional and accredited investors pursuant to which the Company agreed to issue and sell in a registered direct offering (the “Registered Direct Offering”) an aggregate of 580,000 shares of Common Stock, at a negotiated purchase price of $5.00 per share, and pre-funded warrants to purchase up to an aggregate of 440,000 shares of Common Stock at a negotiated purchase price of $5.00 per Pre-Funded Warrant, for aggregate gross proceeds of approximately $5.1 million (580,000 shares of Common Stock plus 440,000 pre-funded warrants at a $5.00 per share purchase price), before deducting placement agent fees and other offering expenses. Net proceeds from the offering were $4.6 million. The offering closed on September 9, 2019. On October 24, 2019, a warrant holder exercised its rights to the warrant agreement to exercise on a cash basis 440,000 pre-funded warrants at an exercise price of $0.001 per share under the warrant agreement.

In a concurrent private placement, the Company issued to the purchasers warrants to purchase 765,000 shares of Common Stock, which represent 75% of the number of shares of Common Stock and shares underlying the Pre-Funded Warrants purchased in the Registered Direct Offering, pursuant to the Securities Purchase Agreement. The Common Warrants will be exercisable for shares of Common Stock at an initial exercise price of $6.12 per share for a period of five years, starting on April 2, 2020 and expiring on April 2, 2025. In January 2021, three warrant holders exercised their rights to the warrant agreement to exercise on a cashless basis 690,000 Series D warrants at an exercise price of $6.12 per share under the warrant agreement. In accordance with terms of the warrant agreement, after taking into account the shares withheld to satisfy the cashless exercise option, the Company issued 352,279 shares of Common Stock. As of March 31, 2022, there were 75,000 Series D warrants outstanding.

Stock to Vendors

From time to time, the Company may enter into agreements with vendors for sponsorship, marketing or investor relation services whereby it may agree to compensate the vendor in cash and unregistered shares of Common Stock of the

Company. The value of the unregistered shares of Common Stock is recorded as prepaid marketing cost and included in prepaid expenses and other current assets and stockholder’s equity in the Condensed Consolidated Balance Sheets and is amortized in proportion to the terms of their respective agreements.

On February 10, 2020, the Company issued 229,886 shares of the Company’s Common Stock, under a sponsorship agreement to its vendor. The prepaid marketing cost amortization associated with the Common Stock issued were $1.1 million during Fiscal 2021 and were included in selling, general and administrative expense in the Consolidated Statements of Operations.

On February 17, 2021 and April 1, 2021, the Company issued 105,933 and 9,541 shares of the Company’s Common Stock, under a sponsorship agreement and an investor relations consulting agreement, respectively to vendors. The prepaid marketing cost amortization associated with the Common Stock issued were $1.0 million during Fiscal 2022, and were included in selling, general and administrative expense in the Consolidated Statements of Operations. As of March 31, 2022, there are no amounts remaining in prepaid marketing cost, prepaid expenses and other current assets in the Consolidated Balance Sheets related to the value of shares issued under the sponsorship agreement and investor relations consulting agreement.