CPMV · Mosaic ImmunoEngineering Inc.

The Convertible Notes were issued on February 18, 2022 in exchange of $50,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $1.00.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on February 18, 2022 in exchange of $25,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $1.00.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on February 18, 2022 in exchange of $10,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $1.00.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on February 18, 2022 in exchange of $50,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $1.00.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on February 18, 2022 in exchange of $20,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $1.00.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on May 7, 2021 in exchange of $100,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $2.377, representing $21 million divided by the number of fully diluted shares of Common Stock outstanding, including common stock reversed for issuance under the Company's Series B Convertible Voting Preferred Stock and the Company's 2020 Equity Incentive Plan as of the issuance date.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

The Convertible Notes were issued on May 7, 2021 in exchange of $25,000 in proceeds to the Company; have no stated maturity date or expiration date; bear interest at a simple rate equal to eight percent (8.0%) per annum until converted; and automatically convert into the same equity securities offered in the Qualified Financing (see footnote 2 and 3) or at the option of the holder into the same equity securities offered in a Smaller Financing (see footnote 2 and 3).

Upon a Qualified Financing or Smaller Financing (see footnote 3), the conversion price shall be equal to the lower of (i) the product equal to 80% times the lowest per unit purchase price of the equity securities issued for cash in the Qualified Financing or Smaller Financing (representing a 20% discount), or (ii) $2.377, representing $21 million divided by the number of fully diluted shares of Common Stock outstanding, including common stock reversed for issuance under the Company's Series B Convertible Voting Preferred Stock and the Company's 2020 Equity Incentive Plan as of the issuance date.

A Qualified Financing represents a single transaction or series or transactions whereby the Company receives aggregate gross proceeds of at least $5 million from the sale of equity securities following the issuance date of the Convertible Note (excluding proceeds from the issuance of any future Convertible Notes). A Smaller Financing represents any sale of equity securities whereby the aggregate gross proceeds are less than $5 million (excluding proceeds from the issuance of any future Convertible Notes).

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the 2020 Mosaic ImmunoEngineering Omnibus Incentive Plan as part of the reporting person's consulting agreement executed on April 29, 2021. RSUs will vest 100% on August 31, 2022, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

The Series A Convertible Voting Preferred Stock has no expiration date.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

The Series A Convertible Voting Preferred Stock has no expiration date.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

The Series A Convertible Voting Preferred Stock has no expiration date.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

The Series A Convertible Voting Preferred Stock has no expiration date.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

Each share of the Series A Convertible Voting Preferred Stock automatically converted for no additional consideration into 10.194106 shares of common stock on January 29, 2021, the date that both of the following criteria were met: (i) upon the Registrant having a sufficient number of authorized and unissued shares of common stock so as to permit the conversion of all outstanding shares of the Series A Convertible Voting Preferred Stock into common stock, which occurred on December 2, 2020 in conjunction with the reverse stock split; and (ii) the effectiveness of any registration statement registering the resale of the underlying shares of common stock of the Registrant, which occurred on January 29, 2021.

The Series A Convertible Voting Preferred Stock has no expiration date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan as a long-term incentive grant equal to 25% of reporting person's annual base salary. RSUs will vest 100% on August 31, 2022, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan for non-employee Board compensation. RSUs will vest 100% on December 16, 2021, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan for non-employee Board compensation. RSUs will vest 100% on December 16, 2021, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan as a long-term incentive grant equal to 25% of reporting person's annual base salary. RSUs will vest 100% on August 31, 2022, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan as part of the reporting person's annual base salary. RSUs will vest 100% on August 31, 2021, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan for non-employee Board compensation. RSUs will vest 100% on December 16, 2021, subject to the reporting person's continuous service to the Issuer on such vesting date.

Each Restricted Stock Unit ("RSU") represents the contingent right to receive, upon vesting, one share of the Issuer's Common Stock.

RSU's granted under the Mosaic ImmunoEngineering Inc. 2020 Omnibus Incentive Plan as part of the reporting person's annual base salary. RSUs will vest 100% on August 31, 2021, subject to the reporting person's continuous service to the Issuer on such vesting date.