ARXS · Arxis, Inc.

Represents an award of restricted stock units granted to the reporting person, which will vest in three substantially equal annual installments on each of June 23, 2027, June 23, 2028 and June 23, 2029, subject to continued employment through each applicable vesting date.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents an award of restricted stock units which will vest on the first anniversary of the grant date.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock purchased by the Reporting Person through the directed share program conducted in connection with the Issuer's initial public offering.

Represents an award of restricted stock units with respect to Class A Common Stock which will vest on the first anniversary of the grant date.

Includes shares of Class A Common Stock subject to an award of restricted stock, of which 1,357,902 shares remain subject to time-vesting conditions. The shares were issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.

The Convertible Common Stock is convertible into a number of shares of Class B Common Stock (or Class A Common Stock if no Class B Common Stock is outstanding at the time of such conversion) representing the product of (i) 1.25% of the Issuer's fully diluted capital stock (including Class B or Class A Common Stock issuable upon such conversion) outstanding at the time of conversion multiplied by (ii) (A) two times (B) the value of one minus the quotient obtained by dividing (x) $28 (the "IPO Price") by (y) the stock price per Class A common stock at the time of conversion, subject to certain adjustments. The Convertible Common Stock will be convertible at the holder's option from April 17, 2031 until April 17, 2036; provided that prior to conversion, the price of Class A common stock must equal at least two-times the IPO Price.

(Continued from footnote 1) The Convertible Common Stock will also provide for automatic conversion upon the occurrence of certain change of control events occurring after April 20, 2029.

The Convertible Common Stock is held directly by Arcline Arxis Advisory I, L.P., which is indirectly controlled and owned by Rajeev Amara and Shyam Ravindran (See "Remarks" below).

Represents shares of Class A Common Stock subject to an award of restricted stock that remains subject to time-vesting conditions. The award was issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock subject to an award of restricted stock that remains subject to time-vesting conditions. The award was issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.

The Class B Common Stock is convertible into Class A Common Stock on a one-for-one basis at the option of the Reporting Persons and will automatically convert into Class A Common Stock on a one-for-one basis upon any transfer (other than a permitted transfer described in the Issuer's amended and restated certificate of incorporation) and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. The Class B Common Stock does not expire.

Represents shares of Class B Common Stock issued to the Reporting Persons in replacement of equity interests in certain subsidiaries of the Issuer with equivalent value as a result of the reorganization effected in connection with the Issuer's initial public offering. These shares are held directly by Engineered Components Borrower Series LP - Engineered Polymer Series (71,544,608 shares), Engineered Components Borrower Series LP - Hawkeye Series (36,689,297 shares), Engineered Components Borrower Series LP - Ovation Series (122,746,592 shares), Engineered Components Borrower Series LP - Connector Series (91,338,254 shares), and Arcline Double Eagle Master Fund-A LP (18,358,032 shares).

Includes shares of Class A Common Stock subject to an award of restricted stock, of which 204,591 shares remain subject to time-vesting conditions. The shares were issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock subject to an award of restricted stock, of which 775,067 shares remain subject to time-vesting conditions. The award was issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.

Represents shares of Class A Common Stock subject to an award of restricted stock, of which 331,080 shares remain subject to time-vesting conditions. The award was issued in replacement of equity interests in a subsidiary of the Issuer with equivalent value as a result of the reorganization of the Issuer effected in connection with the Issuer's initial public offering.