Common use of ASSIGNMENT SEPARATE FROM CERTIFICATE Clause in Contracts

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Stock Purchase Agreement between the undersigned ("Purchaser") and RiboGene, Inc. dated _____________, 19___ (the "Agreement"), Purchaser hereby sells, assigns and transfers unto _______________ (_____) shares of the Common Stock of RiboGene, Inc. standing in Purchaser's name on the books of said corporation represented by Certificate No. herewith and does hereby irrevocably constitute and appoint ___________________ to transfer said stock on the books of the within-named corporation with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: __________________________________ 1* INSTRUCTION: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option set forth in the Agreement without requiring additional signatures on the part of Purchaser. CONSENT OF SPOUSE I, ___________________________, spouse of ___________________________, have read and hereby approve the foregoing Agreement. In consideration of the Company's granting my spouse the right to purchase the Shares as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. ___________________________________________ Spouse of Purchaser

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Stock Purchase Agreement between the undersigned ("Purchaser") and RiboGeneRECEIVED, Inc. dated I, _________________, 19hereby sell, assign and transfer unto ______________________ (the "Agreement"), Purchaser hereby sells, assigns and transfers unto ___________________ (__________) shares (the “Shares”) of the Common Stock of RiboGene, Inc. IdentifySensors Biologics Corp. (the “Company”) standing in Purchaser's my name on the books of said corporation the Company represented by Certificate No. _____ herewith and does hereby irrevocably constitute and appoint ___________________ to transfer said stock on the books of the within-named corporation with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: __________________________________ 1* INSTRUCTION: Please do not fill in any blanks other than , attorney, to transfer the signature line. The purpose Shares on the books of this assignment is to enable the Company to exercise its repurchase option set forth with full power of substitution in the premises. This Stock Assignment may be used only in accordance with the Restricted Stock Award Agreement without requiring additional signatures on between the part of Purchaser. CONSENT OF SPOUSE I, ___________________________, spouse Company and the undersigned effective as of ___________________________, have read and hereby approve the foregoing Agreement. In consideration of the Company's granting my spouse the right to purchase the Shares as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. _____________Dated: ______________________________ Spouse ______________________________ __________________________ (Awardee’s spouse) indicates by the execution of Purchaserthis Assignment his or her consent to be bound by the terms herein as to his or her interests, whether as community property or otherwise, if any, in the Shares. __________________________ Signature __________________________ Print Name INSTRUCTIONS: Please do not fill in the blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its “Repurchase Option,” as set forth in the Agreement, without requiring additional signatures on the part of Awardee. The undersigned taxpayer hereby makes an election pursuant to Section 83(b) of the Internal Revenue Code with respect to the property described below and supplies the following information in accordance with the regulations promulgated thereunder:

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Restricted Stock Purchase Grant Notice and Restricted Stock Agreement between (the undersigned ("Purchaser") and RiboGene“Award”), Inc. dated _____________, 19___ (the "Agreement"), Purchaser hereby sells, assigns and transfers unto ZIOPHARM Oncology, Inc., a Delaware corporation (“Assignee”) _________________ (_____) shares of the Common Stock common stock of RiboGenethe Assignee, Inc. standing in Purchaser's the undersigned’s name on the books of said corporation represented by Certificate No. _____ herewith and does do hereby irrevocably constitute and appoint _____________________ as attorney-in-fact to transfer the said stock on the books of the within-within named corporation Company with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETOThis Assignment may be used only in accordance with and subject to the terms and conditions of the Award, in connection with the reacquisition of shares of Common Stock of the Company issued to the undersigned pursuant to the Award, and only to the extent that such shares remain subject to the Company’s Reacquisition Right under the Award. Dated:____________________, 19__. : Signature: __________________________________ 1* (Print Name), Recipient [INSTRUCTION: Please do not fill in any blanks other than the signature line. The purpose of this assignment Assignment is to enable the Company to exercise its repurchase option Reacquisition Right set forth in the Agreement Award without requiring additional signatures on your part.] [Date] Secretary ZIOPHARM Oncology, Inc. One First Avenue ▇▇▇▇▇▇ Building ▇▇, ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇ Dear Sir/Madam: As Escrow Agent for both ZIOPHARM Oncology, Inc., a Delaware corporation (the part “Company”), and the undersigned recipient of Purchaser. CONSENT OF SPOUSE I, ___________________________, spouse of ___________________________, have read and hereby approve the foregoing Agreement. In consideration stock of the Company's granting my spouse Company (“Recipient”), you are hereby authorized and directed to hold the right documents delivered to purchase you pursuant to the Shares as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement terms of that certain Restricted Stock Grant Notice (including all attachments and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. __________________________________exhibits thereto) dated _________ Spouse (the “Grant Documents”), to which a copy of Purchaserthese Joint Escrow Instructions is attached as Attachment IV, in accordance with the following instructions. Capitalized terms not explicitly defined in these instructions but defined in the Company’s 2020 Equity Incentive Plan (“Plan”) or the Grant Documents shall have the same definitions as provided therein.

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Stock Purchase Agreement between the undersigned ("Purchaser"RECEIVED, hereby sell(s), assign(s) and RiboGene, Inc. dated _____________, 19___ transfer(s) unto (the "Agreement"), Purchaser hereby sells, assigns and transfers unto _______________ (_____“Company”) ( ) shares of the Common Stock common stock of RiboGene, Inc. the Company standing in Purchaser's name on the books of said corporation the Company represented by Certificate No. herewith and does do hereby irrevocably constitute and appoint ___________________ the Company’s Secretary to transfer the said stock on the books of the within-named corporation Company with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: __________________________________ 1* INSTRUCTIONSignature Name: INSTRUCTIONS: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option rights, as set forth in the Agreement Class L Common Stock Grant Agreement, without requiring additional signatures on the part of PurchaserHolder. CONSENT OF SPOUSE I, ___________________________, spouse of ___________________________, have read and hereby approve the foregoing Class L Common Stock Grant Agreement (the “Agreement”). In consideration of the Company's granting issuance to my spouse of the right to purchase the Shares as shares of Common Stock set forth in the AgreementAgreement (the “Restricted Shares”), I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with in respect to any amendment or the exercise of any rights under the Agreement and agree to be bound by the provisions thereof insofar as I may have any rights therein or in or to any Restricted Shares under the community property laws or similar laws relating to marital property in effect in the state of our residence as of the date of the signing of the Agreement. _____Dated: ______________________________________ Signature of Spouse [Company] [Address] Dear [______]: As escrow agent (the “Escrow Agent”) for both Sanken North America, Inc., a Delaware corporation (the “Company”), and the undersigned purchaser or transferee of Purchaserstock of the Company (“Holder”), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of that certain Class L Common Stock Grant Agreement (the “Agreement”) between the Company and the undersigned (the “Escrow”), in accordance with the following instructions:

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED RECEIVED, I, Lia ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇, hereby sell, assign and pursuant to that certain Stock Purchase Agreement between the undersigned ("Purchaser") and RiboGene, Inc. dated transfer unto _____________, 19_________ (the "Agreement"), Purchaser hereby sells, assigns and transfers unto ___________________ (__________) shares (the “Shares”) of the Common Stock of RiboGene, Inc. IdentifySensors Biologics Corp. (the “Company”) standing in Purchaser's my name on the books of said corporation the Company represented by Certificate No. _____ herewith and does hereby irrevocably constitute and appoint ___________________ to transfer said stock on the books of the within-named corporation with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: _______________________________, attorney, to transfer the Shares on the books of the Company with full power of substitution in the premises. This Stock Assignment may be used only in accordance with the Restricted Stock Award Agreement between the Company and the undersigned effective as of ___ 1* INSTRUCTION______, 2020. Dated: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option set forth in the Agreement without requiring additional signatures on the part of Purchaser. CONSENT OF SPOUSE I, ___________________________, spouse of _ ___________________________, have read and hereby approve the foregoing Agreement. In consideration of the Company's granting my spouse the right to purchase the Shares as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. __________________ __________________________ Spouse (Awardee’s spouse) indicates by the execution of Purchaserthis Assignment his or her consent to be bound by the terms herein as to his or her interests, whether as community property or otherwise, if any, in the Shares. _________________________ Signature _________________________ Print Name INSTRUCTIONS: Please do not fill in the blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its “Repurchase Option,” as set forth in the Agreement, without requiring additional signatures on the part of Awardee. The undersigned taxpayer hereby makes an election pursuant to Section 83(b) of the Internal Revenue Code with respect to the property described below and supplies the following information in accordance with the regulations promulgated thereunder:

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Common Stock Purchase Agreement between the undersigned ("Purchaser"“Grantee”) and RiboGene, Inc. dated _____________, 19___ Pacific Energy Development Corp (the "Agreement"), Purchaser hereby sells, assigns and transfers unto “Company”) dated _______________ (_____) shares of the Common Stock of RiboGene“Agreement”), Inc. standing in Purchaser's name on Grantee hereby sells, assigns and transfers unto the books of said corporation represented by Certificate No. herewith and does hereby irrevocably constitute and appoint ___________________ to transfer said stock on the books of the within-named corporation with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: _Company _________________________________ 1* INSTRUCTION(________) shares of the Common Stock of the Company standing in Grantee’s name on the Company’s books and represented by Certificate No. _____, and does hereby irrevocably constitute and appoint ______________________ to transfer said stock on the books of the Company with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated: ______________________ ______________________________ GRANTEE: ___________________ Instruction: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option set forth in the Agreement without requiring additional signatures on the part of PurchaserGrantee. CONSENT OF SPOUSE I, ___________________________, spouse of ____________________________, have read and hereby approve approved the foregoing Agreement. In consideration of the Company's granting right of my spouse the right to purchase the Shares shares of Pacific Energy Development Corp as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with in respect to any amendment or the exercise of any rights under the Agreement insofar as I may have any rights under the community property laws of the State of California or similar laws relating to marital property in effect in the state of our residence as of the date of the signing of the foregoing Agreement. Dated: ______________ ________________________________ Spouse (Signature of PurchaserSpouse)

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to the and that certain Restricted Stock Purchase Award Agreement between the undersigned (the "PurchaserParticipant") and RiboGene, Inc. Forbes Energy Services Ltd. (the "Company") dated _____________, 19___ (the this "Agreement"), Purchaser the Participant hereby sells, assigns and transfers unto ____the Company ___________ (_______) shares of the Common Stock of RiboGenethe Company, Inc. standing in Purchaser's the Participant’s name on the books of said corporation the Company represented by Certificate No. herewith _____ herewith, and does hereby irrevocably constitute and appoint ___________________ to transfer said stock such Common Stock on the books of the within-named corporation Company with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETOThis Assignment may be used only as authorized by this Agreement. Dated:____________________, 19__. Signature: _____________________________,_____ 1* INSTRUCTIONSignature: INSTRUCTIONS: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option the forfeiture provisions as set forth in the Agreement this Agreement, without requiring additional signatures on the part of Purchaserthe Participant. CONSENT OF SPOUSE I[Name] [ADDRESS] Attn.: Corporate Secretary Dear Sir: As Escrow Agent for both Forbes Energy Services Ltd. (the "Company"), ___________________________, spouse of ___________________________, have read and hereby approve the foregoing Agreement. In consideration undersigned Participant of the Company's granting my spouse the right to purchase the Shares as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. ___________________________________________ Spouse shares of PurchaserCommon Stock (the "Covered Shares") of the Company (the "Participant"), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of that certain Restricted Stock Award Agreement (the "Agreement") between the Company and the undersigned, in accordance with the following instructions:

ASSIGNMENT SEPARATE FROM CERTIFICATE. FOR VALUE RECEIVED and pursuant to that certain Common Stock Purchase Agreement between the undersigned ("Purchaser"“Grantee”) and RiboGene, Inc. Pacific Energy Development Corp (the “Company”) dated _____________, 19___ (the "“Agreement"”), Purchaser Grantee hereby sells, assigns and transfers unto the Company _________________________________ (________) shares of the Common Stock of RiboGene, Inc. the Company standing in Purchaser's Grantee’s name on the Company’s books of said corporation and represented by Certificate No. herewith _____, and does hereby irrevocably constitute and appoint ______________________ to transfer said stock on the books of the within-named corporation Company with full power of substitution in the premises. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE EXHIBITS THERETO. Dated:____________________, 19__. Signature: _____________________________________________ 1* INSTRUCTIONGRANTEE: ____________________________________ Instruction: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its repurchase option set forth in the Agreement without requiring additional signatures on the part of PurchaserGrantee. CONSENT OF SPOUSE I, ___________________________, spouse of ____________________________, have read and hereby approve approved the foregoing Agreement. In consideration of the Company's granting right of my spouse the right to purchase the Shares shares of Pacific Energy Development Corp as set forth in the Agreement, I hereby agree to be irrevocably bound by the Agreement and further agree that any community property or other such interest shall be similarly bound by the Agreement. I hereby appoint my spouse as my attorney-in-fact with in respect to any amendment or the exercise of any rights under the Agreement insofar as I may have any rights under the community property laws of the State of California or similar laws relating to marital property in effect in the state of our residence as of the date of the signing of the foregoing Agreement. Dated: ______________ _____________________________________________ Spouse (Signature of PurchaserSpouse)