Document:

EX-10.19

 Exhibit 10.19 

LOAN AND SECURITY AGREEMENT 

THIS LOAN AND SECURITY AGREEMENT is made and dated as of December 20, 2019 and is entered into by and among, YUMANITY THERAPEUTICS, INC.,
a Delaware corporation (“Yumanity”, and together with each Subsidiary of Yumanity from time to time party hereto as a borrower, collectively, “Borrowers”, and each, a “Borrower”), the several banks and other financial
institutions or entities from time to time parties to this Agreement (collectively, the “Lenders”, and each, a “Lender”) and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as administrative agent and collateral
agent for the Lenders (in such capacity, “Agent”). 
 RECITALS 

A. Borrowers have requested that the Lenders make available to Borrowers a term loan in an aggregate principal amount of up to Thirty Million
Dollars ($30,000,000) (the “Term Loan”); and 
 B. The Lenders are willing to make the Term Loan on the terms and conditions set
forth in this Agreement. 
 AGREEMENT 

NOW, THEREFORE, Borrowers, Agent and the Lenders agree as follows: 

SECTION 1. DEFINITIONS AND RULES OF CONSTRUCTION 

1.1 Unless otherwise defined herein, the following capitalized terms shall have the following meanings: 

“Account Control Agreement(s)” means any agreement entered into by and among the Agent, a Borrower and a third party bank or other
institution (including a Securities Intermediary) in which such Borrower maintains a Deposit Account or an account holding Investment Property and which perfects Agent’s first priority security interest in the subject account or accounts. 

“ACH Authorization” means the ACH Debit Authorization Agreement in substantially the form of Exhibit G, which account numbers
shall be redacted for security purposes if and when filed publicly by a Borrower. 
 “Advance(s)” means a Term Loan Advance. 

“Advance Date” means the funding date of any Advance. 

“Advance Request” means a request for an Advance submitted by Borrowers to Agent in substantially the form of
Exhibit A, which account numbers shall be redacted for security purposes if and when filed publicly by a Borrower. 

“Affiliate” means (a) any Person that directly or indirectly controls, is controlled by, or is under common control with the
Person in question, (b) any Person directly or indirectly owning, controlling or holding with power to vote ten percent (10%) or more of the outstanding voting securities of another Person, (c) any Person ten percent (10%) or more of whose
outstanding voting securities are directly or indirectly owned, controlled or held by another Person with power to vote such securities, or (d) any Person related by blood or marriage to any Person described in subsection (a), (b) or
(c) of this paragraph. As used in the definition of “Affiliate,” the term “control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person,
whether through ownership of voting securities, by contract or otherwise. 
 “Agreement” means this Loan and Security Agreement,
as amended, restated, supplemented or otherwise modified from time to time. 

 “Amortization Date” means August 1, 2021; provided however, if the Tranche 2
Advance is made in accordance with the terms of this Agreement, then the Amortization Date shall be extended to February 1, 2022. 

“Anti-Corruption Laws” means all laws, rules, and regulations of any jurisdiction applicable to a Borrower or any of its Affiliates
from time to time concerning or relating to bribery or corruption, including without limitation the United States Foreign Corrupt Practices Act of 1977, as amended, the UK Bribery Act 2010 and other similar legislation in any other jurisdictions.

 “Anti-Terrorism Laws” means any laws, rules, regulations or orders relating to
terrorism or money laundering, including without limitation Executive Order No. 13224 (effective September 24, 2001), the USA PATRIOT Act, the laws comprising or implementing the Bank Secrecy Act, and the laws administered by OFAC. 

“Blocked Person” means any Person: (a) listed in the annex to, or is otherwise subject to the provisions of, Executive Order
No. 13224, (b) a Person owned or controlled by, or acting for or on behalf of, any Person that is listed in the annex to, or is otherwise subject to the provisions of, Executive Order No. 13224, (c) a Person with which any Lender is
prohibited from dealing or otherwise engaging in any transaction by any Anti Terrorism Law, (d) a Person that commits, threatens or conspires to commit or supports “terrorism” as defined in Executive Order No. 13224, or
(e) a Person that is named a “specially designated national” or “blocked person” on the most current list published by OFAC or other similar list. 

“Borrower Products” means all products, software, service offerings, technical data or technology currently being designed,
manufactured or sold by a Borrower or which a Borrower intends to sell, license, or distribute in the future including any products or service offerings under development, collectively, together with all products, software, service offerings,
technical data or technology that have been sold, licensed or distributed by a Borrower since its organization. 
 “Borrower’s
Books” means a Borrower’s or any Subsidiaries’ books and records including ledgers, federal, state, local and foreign tax returns, records regarding such Borrower’s or Subsidiaries’ assets or liabilities, the Collateral,
business operations or financial condition, and all computer programs or storage or any equipment containing such information. 

“Business Day” means any day other than Saturday, Sunday and any other day on which banking institutions in the State of California
are closed for business. 
 “Cash” means all cash, cash equivalents and liquid funds. 

“Change in Control” means any reorganization, recapitalization, consolidation or merger (or similar transaction or series of related
transactions) of Parent, sale or exchange of outstanding shares (or similar transaction or series of related transactions) of Parent in which the holders of Parent’s outstanding shares immediately before consummation of such transaction or
series of related transactions do not, immediately after consummation of such transaction or series of related transactions, retain shares representing more than fifty percent (50%) of the voting power of the surviving entity of such transaction or
series of related transactions (or the parent of such surviving entity if such surviving entity is wholly owned by such parent), in each case without regard to whether Parent is the surviving entity, or if Yumanity ceases to be wholly-owned by
Parent; provided, however, that an initial public offering of Parent’s common stock shall not constitute a Change in Control. 

“Closing Date” means the date of this Agreement. 

“Code” means the Internal Revenue Code of 1986, as amended. 

“Contingent Obligation” means, as applied to any Person, any direct or indirect liability, contingent or otherwise, of that Person
with respect to (i) any Indebtedness, lease, dividend, letter of credit or other obligation of another, including any such obligation directly or indirectly guaranteed, endorsed, co-made or discounted or
sold with recourse by that Person, or in respect of which that Person is otherwise directly or indirectly liable; (ii) any obligations with respect to undrawn letters of credit, business credit cards or merchant services issued for the account

  
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of that Person; and (iii) all obligations arising under any interest rate, currency or commodity swap agreement, interest rate cap agreement, interest rate collar agreement, or other
agreement or arrangement designated to protect a Person against fluctuation in interest rates, currency exchange rates or commodity prices; provided, however, that the term “Contingent Obligation” shall not include endorsements for
collection or deposit in the ordinary course of business. The amount of any Contingent Obligation shall be deemed to be an amount equal to the stated or determined amount of the primary obligation in respect of which such Contingent Obligation is
made or, if not stated or determinable, the maximum reasonably anticipated liability in respect thereof as determined by such Person in good faith; provided, however, that such amount shall not in any event exceed the maximum amount of the
obligations under the guarantee or other support arrangement. 
 “Copyright License” means any written agreement granting any
right to use any Copyright or Copyright registration, now owned or hereafter acquired by a Borrower or in which a Borrower now holds or hereafter acquires any interest. 

“Copyrights” means all copyrights, whether registered or unregistered, held pursuant to the laws of the United States of
America, any State thereof, or of any other country. 
 “Deposit Accounts” means any “deposit accounts,” as such term is
defined in the UCC, and includes any checking account, savings account, or certificate of deposit that is not evidenced by an instrument. 

“Domestic Subsidiary” means any Subsidiary organized under the laws of the United States of America, any State thereof, the District
of Columbia, or any other jurisdiction within the United States of America. 
 “Due Diligence Fee” means $25,000, which fee has
been paid to the Lenders prior to the Closing Date, and shall be deemed fully earned on such date regardless of the early termination of this Agreement. 

“Equity Interests” means, with respect to any Person, the capital stock, partnership or limited liability company interest, or other
equity securities or equity ownership interests of such Person. 
 “ERISA” means the Employee Retirement Income Security Act of
1974, as amended, and the regulations promulgated thereunder. 
 “Foreign Subsidiary” means any Subsidiary other than a Domestic
Subsidiary. 
 “GAAP” means generally accepted accounting principles in the United States of America, as in effect from time to
time. 
 “Guaranty” means the Limited Recourse Guaranty, dated as of the date hereof by Parent, or any other guaranty with respect
to the Secured Obligations in a form reasonably acceptable to Agent. 
 “Indebtedness” means indebtedness of any kind, including
(a) all indebtedness for borrowed money or the deferred purchase price of property or services (excluding trade credit entered into in the ordinary course of business due within ninety (90) days), including reimbursement and other
obligations with respect to surety bonds and letters of credit, (b) all obligations evidenced by notes, bonds, debentures or similar instruments, (c) all capital lease obligations,
(d) non-contingent obligations to reimburse any bank or Person in respect of amounts paid under a letter of credit, banker’s acceptance or similar instrument, (e) equity securities of any Person
subject to repurchase or redemption other than at the sole option of such Person, other than any such equity securities that are subject to repurchase or redemption solely after the 91st day after the Term Loan Maturity Date, (f) earn outs,
purchase price adjustments, deferred purchase amounts and similar payment obligations or any nature arising out of purchase and sale contracts, and (g) all Contingent Obligations. 

“Initial Facility Charge” means Two Hundred Thousand Dollars ($200,000), which is payable to the Lenders in accordance with
Section 4.1(f). 

  
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 “Intellectual Property” means all of Borrowers’ Copyrights; Trademarks;
Patents; Licenses; trade secrets and inventions; mask works; Borrowers’ applications therefor and reissues, extensions, or renewals thereof; and Borrowers’ goodwill associated with any of the foregoing, together with Borrowers’ rights
to sue for past, present and future infringement of Intellectual Property and the goodwill associated therewith. 
 “Investment”
means any beneficial ownership (including stock, partnership, limited liability company interests, or other securities) of or in any Person, or any loan, advance or capital contribution to any Person or the acquisition of any material asset or
property of another Person. 
 “IRS” means the United States Internal Revenue Service. 

“Joinder Agreements” means for each Subsidiary, a completed and executed Joinder Agreement in substantially the form attached hereto
as Exhibit F. 
 “License” means any Copyright License, Patent License, Trademark License or other license of rights or interests.

 “Lien” means any mortgage, deed of trust, pledge, hypothecation, assignment for security, security interest, encumbrance, levy,
lien or charge of any kind, whether voluntarily incurred or arising by operation of law or otherwise, against any property, any conditional sale or other title retention agreement, and any lease in the nature of a security interest. 

“Loan” means the Advances made under this Agreement. 

“Loan Documents” means this Agreement, the promissory notes (if any), the ACH Authorization, the Account Control Agreements, the
Joinder Agreements, all UCC Financing Statements, the Warrant, any Guaranty, the Pledge Agreement, and any other documents executed in connection with the Secured Obligations or the transactions contemplated hereby, as the same may from time to time
be amended, modified, supplemented or restated. 
 “Material Adverse Effect” means a material adverse effect upon: (i) the
business, operations, properties, assets or financial condition of Borrowers and Subsidiaries taken as a whole; or (ii) the ability of Borrowers to perform or pay the Secured Obligations in accordance with the terms of the Loan Documents, or
the ability of Agent or the Lenders to enforce any of its rights or remedies with respect to the Secured Obligations; or (iii) the Collateral or Agent’s Liens on the Collateral or the priority of such Liens (other than as a result of a
failure by the Agent to make any necessary filings or maintain possession of any possessory collateral). 
 “Maximum Term Loan
Amount” means Thirty Million and No/100 Dollars ($30,000,000). 
 “Non-Core
Indication” means any specific disease indication that is not (a) Parkinson’s Disease or a subtype, symptom, or off-shoot of the broader Parkinson’s Disease indication, (b) Lewy Body
Dementia or a subtype, symptom, or off-shoot of the broader Lewy Body Dementia indication, (c) amyotrophic lateral sclerosis or a subtype, symptom, or off-shoot of
the broader amyotrophic lateral sclerosis indication, or (d) any other indication Borrower, in its reasonable discretion, upon prior consultation with Agent, deems to be “core” to Borrower. 

“Non-Disclosure Agreement” means that certain
Non-Disclosure Agreement by and between Yumanity and Agent dated as of October 1, 2019. 

“OFAC” means the U.S. Department of Treasury Office of Foreign Assets Control. 

“OFAC Lists” means, collectively, the Specially Designated Nationals and Blocked Persons List maintained by OFAC pursuant to
Executive Order No. 13224, 66 Fed. Reg. 49079 (Sept. 25, 2001) and/or any other list of terrorists or other restricted Persons maintained pursuant to any of the rules and regulations of OFAC or pursuant to any other applicable Executive Orders.

  
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 “Parent” means Yumanity Holdings, LLC, a Delaware limited liability company. 

“Patent License” means any written agreement granting any right with respect to any invention on which a Patent is in existence or a
Patent application is pending, in which agreement a Borrower now holds or hereafter acquires any interest. 
 “Patents” means all
letters patent of, or rights corresponding thereto, in the United States of America or in any other country, all registrations and recordings thereof, and all applications for letters patent of, or rights corresponding thereto, in the United States
of America or any other country. 
 “Performance Milestone” means Borrowers shall have delivered evidence satisfactory to Agent,
in Agent’s sole discretion, that the following conditions shall have been met: (i) completion of the Phase 1 clinical evaluation of YTX-7739 in healthy volunteers, with data, taken as whole, deemed
to evidence “Proof of Biology” (i.e. confirmation of target engagement with no adverse safety concerns which together support advancement into a Phase 1b
proof-of-concept clinical trial as the next step in clinical development), and (ii) Borrowers shall have received after the Closing Date but no later than
March 31, 2021, in unrestricted (including, not subject to any redemption, clawback, escrow or similar encumbrance or restriction) net cash proceeds (not including proceeds from the conversion or cancellation of Indebtedness) in an aggregate
amount not less than $55,000,000, which proceeds shall be immediately deposited in a Deposit Account or Securities Account of Borrowers subject to an Account Control Agreement in favor of Agent from (A) the sale and issuance of Equity Interests
or Subordinated Indebtedness to investors and on terms satisfactory to Agent, and/or (B) upfront payments pursuant to a business development transaction permitted under this Agreement, subject to verification by Agent (including supporting
documentation requested by Agent). 
 “Permitted Indebtedness” means: 

(i) Indebtedness of a Borrower in favor of the Lenders or Agent arising under this Agreement or any other Loan Document; 

(ii) Indebtedness existing on the Closing Date which is disclosed in Schedule 1A; 

(iii) Indebtedness of up to $750,000 outstanding at any time secured by a Lien described in clause (vii) of the defined
term “Permitted Liens,” provided such Indebtedness does not exceed the cost of the Equipment financed with such Indebtedness; 

(iv) (A) Indebtedness to trade creditors incurred in the ordinary course of business (due within 90 days), and (B) such
Indebtedness incurred in the ordinary course of business with business credit cards in an amount not to exceed $250,000 outstanding at any time; 

(v) Indebtedness that also constitutes a Permitted Investment; 

(vi) Subordinated Indebtedness; 

(vii) reimbursement obligations in connection with letters of credit that are secured by Cash and issued on behalf of a
Borrower or a Subsidiary thereof in an amount not to exceed $1,000,000 at any time outstanding; 
 (viii) other unsecured
Indebtedness in an amount not to exceed $250,000 at any time outstanding; 
 (ix) intercompany Indebtedness (A) to the
extent constituting a Permitted Investment as described in clause (x) of the defined term “Permitted Investments”, (B) each of the Subsidiary obligor and the Subsidiary obligee under such Indebtedness is a Borrower or Domestic
Subsidiary that has executed a Joinder Agreement, or (C) each of the obligor and obligee are Foreign Subsidiaries; 

  
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 (x) Indebtedness consisting of interest rate, currency, or commodity swap
agreements, interest rate cap or collar agreements or arrangements entered into in the ordinary course of business and designated to protect a Borrower or any Subsidiary against fluctuations in interest rates, currency exchange rates, or commodity
prices, provided that the aggregate outstanding nominal value outstanding of such Indebtedness does not exceed $250,000; 

(xi) Indebtedness consisting of financing of insurance premiums in the ordinary course of business; and 

(xii) extensions, refinancings and renewals of any items of Permitted Indebtedness, provided that the principal amount is not
increased or the terms modified to impose materially more burdensome terms upon the applicable Borrower or its Subsidiary, as the case may be. 

“Permitted Investment” means: 

(i) Investments existing on the Closing Date which are disclosed in Schedule 1B; 

(ii) (a) marketable direct obligations issued or unconditionally guaranteed by the United States of America or any agency or
any State thereof maturing within one (1) year from the date of acquisition thereof currently having a rating of at least A-2 or P-2 from either Standard &
Poor’s Corporation or Moody’s Investors Services, (b) commercial paper maturing no more than one (1) year from the date of creation thereof and currently having a rating of at least A-2 or P-2 from either Standard & Poor’s Corporation or Moody’s Investors Services, (c) certificates of deposit issued by any bank with assets of at least $500,000,000 maturing no more than one
(1) year from the date of investment therein, and (d) money market accounts; 
 (iii) repurchases of stock from
former or existing employees, directors, or consultants of Parent under the terms of applicable repurchase agreements in an aggregate amount not to exceed $250,000 in any fiscal year, provided that no Event of Default has occurred, is continuing or
would exist after giving effect to the repurchases; 
 (iv) Investments accepted in connection with Permitted Transfers; 

(v) Investments (including debt obligations) received in connection with the bankruptcy or reorganization of customers or
suppliers and in settlement of delinquent obligations of, and other disputes with, customers or suppliers arising in the ordinary course of the applicable Borrower’s business; 

(vi) Investments consisting of notes receivable of, or prepaid royalties and other credit extensions, to customers and
suppliers who are not Affiliates, in the ordinary course of business, provided that this subparagraph (vi) shall not apply to Investments of a Borrower in any Subsidiary; 

(vii) Investments consisting of loans not involving the net transfer on a substantially contemporaneous basis of cash proceeds
to employees, officers or directors relating to the purchase of capital stock of Parent pursuant to employee stock purchase plans or other similar agreements approved by Parent’s Board of Directors not to exceed $500,000 in the aggregate; 

(viii) Investments consisting of (a) travel advances, employee relocation loans and other employee loans in the ordinary
course of business and (b) loans to employees, officers or directors relating to the purchase of equity securities of Parent pursuant to employee stock purchase plans or agreements; 

(ix) Investments in newly-formed Subsidiaries, provided that each such Subsidiary has entered into or enters into a Joinder
Agreement promptly after its formation by a Borrower and execute such other documents as shall be reasonably requested by Agent; 

  
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 (x) Investments (i) among Borrowers, and (ii) by a Borrower in
Foreign Subsidiaries in an amount not to exceed $100,000 in the aggregate per fiscal year; 
 (xi) joint ventures or
strategic alliances in the ordinary course of the Borrowers’ business consisting of the nonexclusive licensing of technology, the development of technology or the providing of technical support, provided that any cash Investments by a Borrower
do not exceed $250,000 in the aggregate in any fiscal year; 
 (xii) Investments made in accordance with the Borrower’s
investment policy, which shall have been delivered to Agent on the Closing Date or as approved by Agent from time to time thereafter; 

(xiii) Investments in Deposit Accounts, in the ordinary course of business; 

(xiv) Investments consisting of interest rate, currency, or commodity swap agreements, interest rate cap or collar agreements
or arrangements entered into in the ordinary course of business and designated to protect a Person against fluctuations in interest rates, currency exchange rates, or commodity prices, provided the aggregate outstanding nominal value outstanding of
such Investment does not exceed $250,000; and 
 (xv) additional Investments that do not exceed $250,000 in the aggregate.

 “Permitted Liens” means: 

(i) Liens in favor of Agent or the Lenders; 

(ii) Liens existing on the Closing Date which are disclosed in Schedule 1C; 

(iii) Liens for taxes, fees, assessments or other governmental charges or levies, either not delinquent or being contested in
good faith by appropriate proceedings diligently conducted; provided, that Borrowers maintain adequate reserves therefor on Borrowers’ Books in accordance with GAAP; 

(iv) Liens securing claims or demands of materialmen, artisans, mechanics, carriers, warehousemen, landlords and other like
Persons arising in the ordinary course of Borrowers’ business and imposed without action of such parties; provided, that the payment thereof is not yet required; 

(v) Liens arising from judgments, decrees or attachments in circumstances which do not constitute an Event of Default
hereunder; 
 (vi) the following deposits, to the extent made in the ordinary course of business: deposits under
worker’s compensation, unemployment insurance, social security and other similar laws, or to secure the performance of bids, tenders or contracts (other than for the repayment of borrowed money) or to secure indemnity, performance or other
similar bonds for the performance of bids, tenders or contracts (other than for the repayment of borrowed money) or to secure statutory obligations (other than Liens arising under ERISA or environmental Liens) or surety or appeal bonds, or to secure
indemnity, performance or other similar bonds; 
 (vii) Liens on Equipment or software or other intellectual property
constituting purchase money Liens and Liens in connection with capital leases securing Indebtedness permitted in clause (iii) of “Permitted Indebtedness”; 

(viii) Liens incurred in connection with Subordinated Indebtedness; 

(ix) leasehold interests in leases or subleases and licenses (other than with respect to Intellectual Property) granted in the
ordinary course of business and not interfering in any material respect with the business of the licensor; 

  
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 (x) Liens in favor of customs and revenue authorities arising as a matter of
law to secure payment of custom duties that are promptly paid on or before the date they become due; 
 (xi) Liens on
insurance proceeds securing the payment of financed insurance premiums that are promptly paid on or before the date they become due (provided that such Liens extend only to such insurance proceeds and not to any other property or assets); 

(xii) statutory and common law rights of set-off and other similar rights as to
deposits of cash and securities in favor of banks, other depository institutions and brokerage firms; 
 (xiii) easements,
zoning restrictions, rights-of-way and similar encumbrances on real property imposed by law or arising in the ordinary course of business so long as they do not
materially impair the value or marketability of the related property; 
 (xiv) (A) Liens on Cash securing obligations
permitted under clause (vii) of the definition of Permitted Indebtedness and (B) security deposits in connection with real property leases, the combination of (A) and (B) in an aggregate amount not to exceed $1,000,000 at any time;

 (xv) Licenses permitted in clause (ii) of “Permitted Transfers”; 

(xvi) Liens in favor of other financial institutions arising in connection with Deposit Accounts and/or securities accounts
held at such institutions in the ordinary course of business; 
 (xvii) Liens consisting of pledges of cash, cash equivalents
or government securities to secure swap or foreign exchange contracts or letters of credit, in a combined aggregate amount outstanding not to exceed $250,000; 

(xviii) the filing of UCC financing statements solely as a precautionary measure in connection with operating leases or
consignment of goods; 
 (xix) Liens on cash not to exceed $100,000 securing Indebtedness permitted in clause (iv)(B) of
“Permitted Indebtedness”; 
 (xx) Liens not otherwise permitted hereunder securing Indebtedness with respect to
specific assets in an aggregate outstanding amount not to exceed $250,000; and 
 (xxi) Liens incurred in connection with the
extension, renewal or refinancing of the Indebtedness secured by Liens of the type described in clauses (i) through (xiv) above; provided, that any extension, renewal or replacement Lien shall be limited to the property encumbered by the
existing Lien and the principal amount of the Indebtedness being extended, renewed or refinanced (as may have been reduced by any payment thereon) does not increase. 

“Permitted Transfers” means: 

(i) sales of Inventory in the ordinary course of business, 

(ii) (A) non-exclusive licenses and similar arrangements for the use of Intellectual
Property in the ordinary course of business and licenses that could not result in a legal transfer of title of the licensed property, (B) arms-length outbound licenses, sublicenses and similar arrangements for the use of Intellectual Property
and related assets that are exclusive in respect to territory but only as to discrete geographical areas outside of the United States of America in the ordinary course of business, and (C) arms-length outbound licenses, sublicenses and similar
arrangements for the use of Intellectual Property and related assets that are exclusive in respect to territories including the United States of America and/or in respect to specific disease indication(s) in the ordinary course of business, provided
that such disease indication is a Non-Core Indication, 

  
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 (iii) dispositions of worn-out,
obsolete or surplus Equipment at fair market value in the ordinary course of business 
 (iv) the sale or issuance of any
stock of Parent not prohibited under this Agreement; 
 (v) the use or transfer of Cash in the ordinary course of business in
a manner that is not prohibited by the terms of this Agreement or the other Loan Documents 
 (vi) Permitted Liens and
Permitted Investments, and 
 (vii) other transfers of assets having a fair market value of not more than $250,000 in the
aggregate in any fiscal year. 
 “Person” means any individual, sole proprietorship, partnership, joint venture, trust,
unincorporated organization, association, corporation, limited liability company, institution, other entity or government. 
 “Pledge
Agreement” means the Pledge Agreement dated as of the Closing Date between Parent and Agent, as the same may from time to time be amended, restated, modified or otherwise supplemented. 

“Receivables” means (i) all of each Borrower’s Accounts, Instruments, Documents, Chattel Paper, Supporting Obligations,
letters of credit, proceeds of any letter of credit, and Letter of Credit Rights, and (ii) all customer lists, software, and business records related thereto. 

“Register” has the meaning specified in Section 11.7. 

“Required Lenders” means at any time, the holders of more than 50% of the sum of the aggregate unpaid principal amount of the Term
Loans then outstanding. 
 “Restricted License” means any material License or other agreement with respect to which a Borrower is
the licensee (a) that prohibits or otherwise restricts such Borrower from granting a security interest in such Borrower’s interest in such License or agreement or any other property, or (b) for which a default under or termination of
could interfere with the Agent’s right to sell any Collateral. 
 “Sanctioned Country” means, at any time, a country or
territory which is the subject or target of any Sanctions. 
 “Sanctioned Person” means, at any time, (a) any Person listed
in any Sanctions-related list of designated Persons maintained by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, or by the United Nations Security Council, the European Union or any EU
member state, (b) any Person operating, organized or resident in a Sanctioned Country or (c) any Person controlled by any such Person. 

“Sanctions” means economic or financial sanctions or trade embargoes imposed, administered or enforced from time to time by
(a) the U.S. government, including those administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury or the U.S. Department of State, or (b) the United Nations Security Council, the European Union or Her
Majesty’s Treasury of the United Kingdom. 
 “SBA Funding Date” means each date on which a Lender which is an SBIC funds any
portion of the Term Loan. 
 “Secured Obligations” means each Borrower’s obligations under this Agreement and any Loan
Document (other than the Warrant), including any obligation to pay any amount now owing or later arising. 

  
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 “Subordinated Indebtedness” means Indebtedness subordinated to the Secured
Obligations in amounts and on terms and conditions satisfactory to Agent in its sole discretion and subject to a subordination agreement in form and substance satisfactory to Agent in its sole discretion. 

“Subsequent Facility Charge” means one percent (1.0%) of the aggregate original principal amounts of the Tranche 3 Advances made
hereunder, which is payable to the Lenders in accordance with Section 4.2(d). 
 “Subsidiary” means an entity, whether a
corporation, partnership, limited liability company, joint venture or otherwise, in which a Borrower owns or controls 50% or more of the outstanding voting securities, including each entity listed on Schedule 1 hereto. 

“Taxes” means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding),
assessments, fees or other charges imposed by any governmental authority, including any interest, additions to tax or penalties applicable thereto. 

“Term Commitment” means as to any Lender, the obligation of such Lender, if any, to make a Term Loan Advance to Borrowers in a
principal amount not to exceed the amount set forth under the heading “Term Commitment” opposite such Lender’s name on Schedule 1.1. 

“Term Loan Advance” means each Tranche 1 Advance, Tranche 2 Advance, Tranche 3 Advance and any other Term Loan funds advanced under
this Agreement. 
 “Term Loan Interest Rate” means for any day a per annum rate of interest equal to the greater of either
(i) the prime rate as reported in The Wall Street Journal plus 4.00%, and (ii) 8.75%. 
 “Term Loan Maturity Date” means
January 1, 2024; provided that if such day is not a Business Day, the Term Loan Maturity Date shall be the immediately preceding Business Day. 

“Trademark License” means any written agreement granting any right to use any Trademark or Trademark registration, now owned or
hereafter acquired by a Borrower or in which a Borrower now holds or hereafter acquires any interest. 
 “Trademarks” means all
trademarks (registered, common law or otherwise) and any applications in connection therewith, including registrations, recordings and applications in the United States Patent and Trademark Office or in any similar office or agency of the United
States of America, any State thereof or any other country or any political subdivision thereof. 
 “UCC” means the Uniform
Commercial Code as the same is, from time to time, in effect in the State of California; provided, that in the event that, by reason of mandatory provisions of law, any or all of the attachment, perfection or priority of, or remedies with respect
to, Agent’s Lien on any Collateral is governed by the Uniform Commercial Code as the same is, from time to time, in effect in a jurisdiction other than the State of California, then the term “UCC” shall mean the Uniform Commercial
Code as in effect, from time to time, in such other jurisdiction solely for purposes of the provisions thereof relating to such attachment, perfection, priority or remedies and for purposes of definitions related to such provisions. 

“U.S. Person” means any Person that is a “United States person” as defined in Section 7701(a)(30) of the Code. 

“Warrant” means any warrant entered into in connection with the Loan, as may be amended, restated or modified from time to time.

  
 10 

 1.2 The following terms are defined in the Sections or subsections referenced opposite such
terms: 
  

			
	 Defined Term
	  	Section
	 Agent
	  	Preamble
	 Assignee
	  	11.14
	 Borrower
	  	Preamble
	 Claims
	  	11.11
	 Collateral
	  	3.1
	 Confidential Information
	  	11.13
	 End of Term Charge
	  	2.6
	 Event of Default
	  	9
	 Financial Statements
	  	7.1
	 Indemnified Person
	  	6.3
	 Lenders
	  	Preamble
	 Liabilities
	  	6.3
	 Maximum Rate
	  	2.3
	 Open Source License
	  	5.10
	 Participant Register
	  	11.8
	 Prepayment Charge
	  	2.5
	 Publicity Materials
	  	11.19
	 Register
	  	11.7
	 Rights to Payment
	  	3.1
	 SBA
	  	7.16
	 SBIC
	  	7.16
	 SBIC Act
	  	7.16
	 Term Loan
	  	Preamble
	 Tranche 1 Advance
	  	2.2(a)
	 Tranche 2 Advance
	  	2.2(a)
	 Tranche 3 Advance
	  	2.2(a)
	 Yumanity
	  	Preamble

 1.3 Unless otherwise specified, all references in this Agreement or any Annex or Schedule hereto to a
“Section,” “subsection,” “Exhibit,” “Annex,” or “Schedule” shall refer to the corresponding Section, subsection, Exhibit, Annex, or Schedule in or to this Agreement. Unless otherwise specifically
provided herein, any accounting term used in this Agreement or the other Loan Documents shall have the meaning customarily given such term in accordance with GAAP, and all financial computations hereunder shall be computed in accordance with GAAP,
consistently applied. Unless otherwise defined herein or in the other Loan Documents, terms that are used herein or in the other Loan Documents and defined in the UCC shall have the meanings given to them in the UCC. For all purposes under the Loan
Documents, in connection with any division or plan of division under Delaware law (or any comparable event under a different jurisdiction’s laws): (a) if any asset, right, obligation or liability of any Person becomes the asset, right,
obligation or liability of a different Person, then it shall be deemed to have been transferred from the original Person to the subsequent Person and (b) if any new Person comes into existence, such new Person shall be deemed to have been
organized on the first date of its existence by the holders of its Equity Interests at such time. 
 SECTION 2. THE LOAN 

2.1 [Reserved] 

2.2 Term Loan. 

  
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 (a) Advances. 

(i) Tranche 1 Advance. Subject to the terms and conditions of this Agreement, the Lenders will severally (and not
jointly) make in an amount not to exceed their respective Term Commitments, and Borrowers agree to draw, a Term Loan Advance in principal amount of Fifteen Million Dollars ($15,000,000) on the Closing Date (the “Tranche 1 Advance”). 

(ii) Tranche 2 Advance. Subject to the terms and conditions of this Agreement, beginning on the date the
Performance Milestone is achieved and continuing through March 31, 2021, Borrowers may request and the Lenders shall severally (and not jointly) make an additional Term Loan Advance in a principal amount of Five Million Dollars ($5,000,000)
(the “Tranche 2 Advance”). 
 (iii) Tranche 3 Advances. Subject to the terms and conditions of this
Agreement and conditioned on approval by the Lenders’ investment committee in its sole and unfettered discretion, on or before December 31, 2021, Borrowers may request additional Term Loan Advances in an aggregate principal amount up to
Ten Million Dollars ($10,000,000), in minimum increments of $5,000,000 (each, a “Tranche 3 Advance”). 
 The
aggregate outstanding Term Loan Advances may be up to the Maximum Term Loan Amount. 
 (b) Advance Request. To obtain a Term
Loan Advance, Borrowers shall complete, sign and deliver an Advance Request (at least three (3) Business Days before the Advance Date other than the Closing Date, which shall be at least one (1) Business Day before the Advance Date) to
Agent. The Lenders shall fund the Term Loan Advance in the manner requested by the Advance Request provided that each of the conditions precedent set forth in Section 4 and applicable to such Term Loan Advance is satisfied as of the requested
Advance Date. 
 (c) Interest. The principal balance shall bear interest thereon from the applicable Advance Date at the Term
Loan Interest Rate based on a year consisting of 360 days, with interest computed daily based on the actual number of days elapsed. The Term Loan Interest Rate will float and change on the day the prime rate changes from time to time. 

(d) Payment. Borrowers will pay interest on each Term Loan Advance in arrears on the first Business Day of each month,
beginning the month after the Advance Date. Borrowers shall repay the aggregate Term Loan principal balance that is outstanding on the day immediately preceding the Amortization Date, in equal monthly installments of principal and interest (mortgage
style) beginning on the Amortization Date and continuing on the first Business Day of each month thereafter until the Secured Obligations (other than inchoate indemnity obligations) are repaid. The entire Term Loan principal balance and all accrued
but unpaid interest hereunder, shall be due and payable on Term Loan Maturity Date. Borrowers shall make all payments under this Agreement without setoff, recoupment or deduction and regardless of any counterclaim or defense. If a payment hereunder
becomes due and payable on a day that is not a Business Day, the due date thereof shall be the immediately following Business Day. The Lenders will initiate debit entries to a Borrower’s account as authorized on the ACH Authorization
(i) on each payment date of all periodic obligations payable to the Lenders under each Term Loan Advance and (ii) reasonable and documented out-of-pocket legal
fees and costs incurred by Agent or the Lenders in connection with Section 11.12 of this Agreement; provided that, with respect to clause (i) above, in the event that the Lenders or Agent informs Borrowers that the Lenders will not
initiate a debit entry to a Borrower’s account for a certain amount of the periodic obligations due on a specific payment date, Borrowers shall pay to the Lenders such amount of periodic obligations in full in immediately available funds on
such payment date; provided, further, that, with respect to clause (i) above, if the Lenders or Agent informs Borrowers that the Lenders will not initiate a debit entry as described above later than the date that is three (3) Business Days
prior to such payment date, Borrowers shall pay to the Lenders such amount of periodic obligations in full in immediately available funds on the date that is three (3) Business Days after the date on which the Lenders or Agent notifies
Borrowers of such; provided, further, that, with respect to clause (ii) above, in the event that the Lenders or Agent informs Borrowers that the Lenders will not initiate a debit entry to a Borrower’s account for certain amount of such out-of-pocket legal fees and costs incurred by Agent or the Lenders, Borrowers shall pay to the Lenders such amount in full in immediately available funds within three
(3) Business Days. 

  
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 2.3 Maximum Interest. Notwithstanding any provision in this Agreement or any
other Loan Document, it is the parties’ intent not to contract for, charge or receive interest at a rate that is greater than the maximum rate permissible by law that a court of competent jurisdiction shall deem applicable hereto (which under
the laws of the State of California shall be deemed to be the laws relating to permissible rates of interest on commercial loans) (the “Maximum Rate”). If a court of competent jurisdiction shall finally determine that Borrowers have
actually paid to the Lenders an amount of interest in excess of the amount that would have been payable if all of the Secured Obligations had at all times borne interest at the Maximum Rate, then such excess interest actually paid by Borrowers shall
be applied as follows: first, to the payment of the Secured Obligations consisting of the outstanding principal; second, after all principal is repaid, to the payment of the Lenders’ accrued interest, reasonable and documented out-of-pocket costs, expenses, professional fees and any other Secured Obligations; and third, after all Secured Obligations are repaid, the excess (if any) shall be refunded
to Borrowers. 
 2.4 Default Interest. In the event any payment is not paid on the scheduled payment date, an amount equal to
five percent (5%) of the past due amount shall be payable on demand. In addition, upon the occurrence and during the continuation of an Event of Default hereunder, all outstanding Secured Obligations, including principal, interest, compounded
interest, and professional fees, shall bear interest at a rate per annum equal to the rate set forth in Section 2.2(c) plus five percent (5%) per annum. In the event any interest is not paid when due hereunder, delinquent interest shall be
added to principal and shall bear interest on interest, compounded at the rate set forth in Section 2.2(c) or Section 2.4, as applicable. 

2.5 Prepayment. At its option upon written notice to Agent, Borrowers may prepay all or a portion of the outstanding Advances
by paying the entire principal balance (or such portion thereof), all accrued and unpaid interest thereon, together with a prepayment charge equal to the following percentage of the Advance amount being prepaid: with respect to each Advance, if such
prepayment is made in any of the first twelve (12) months following the Closing Date, 3.0%; after twelve (12) months but prior to twenty four (24) months, 2.0%; and thereafter, 1.0% (each, a “Prepayment Charge”). If
at any time Borrowers elect to make a prepayment, and at such time, there are outstanding Advances under multiple Tranches, the Prepayment Charge shall be determined by applying the amount of such prepayment in the following order: first, to the
outstanding principal amount (and accrued but unpaid interest thereon) of Advances outstanding under the Tranche with the latest initial funding date; second, to the outstanding principal amount (and accrued but unpaid interest thereon) of Advances
outstanding under the Tranche with the next latest initial funding date and so on until the entire principal balance of all Advances made hereunder (and all accrued but unpaid interest thereon) is paid in full. Borrowers agree that the
Prepayment Charge is a reasonable calculation of the Lenders’ lost profits in view of the difficulties and impracticality of determining actual damages resulting from an early repayment of the Advances. Borrowers shall prepay the outstanding
amount of all principal and accrued interest through the prepayment date and the Prepayment Charge upon the occurrence of a Change in Control. Notwithstanding the foregoing, Agent and the Lenders agree to waive the Prepayment Charge if Agent and the
Lenders (in their sole and absolute discretion) agree in writing to refinance the Advances prior to the Term Loan Maturity Date. Any amounts paid under this Section shall be applied by Agent to the then unpaid amount of any outstanding Secured
Obligations (including principal and interest) in such order and priority as Agent may choose in its sole discretion. For the avoidance of doubt, if a payment hereunder becomes due and payable on a day that is not a Business Day, the due date
thereof shall be the immediately following Business Day. 
 2.6 End of Term Charge. On the earliest to occur of (i) the
Term Loan Maturity Date, (ii) the date that Borrowers prepay the outstanding Secured Obligations (other than any inchoate indemnity obligations and any other obligations which, by their terms, are to survive the termination of this Agreement)
in full, or (iii) the date that the Secured Obligations become due and payable (including without limitation, by acceleration of the Secured Obligations during an Event of Default pursuant to Section 10),

  
 13 

 
Borrowers shall pay the Lenders a charge in an amount equal to 5.25% of the aggregate original principal amount of the Term Loan Advances made hereunder, provided that in the event of a partial
prepayment the Term Loan, Borrowers shall pay, together with any such prepayment, a charge equal to 5.25% of the principal amount being prepaid, and upon the repayment in full of all Secured Obligations (other than inchoate indemnity obligations and
any other obligations which, by their terms, are to survive the termination of this Agreement), an amount equal to 5.25% of the aggregate original principal amount of the Term Loan Advances made hereunder less the aggregate amount of all charges
paid in accordance with the foregoing in connection with all prior partial prepayments (such charges, collectively, the “End of Term Charge”). Notwithstanding the required payment date of such End of Term Charge, the applicable pro rata
portion of the End of Term Charge shall be deemed earned by the Lenders as of each date a Term Loan Advance is made. For the avoidance of doubt, if a payment hereunder becomes due and payable on a day that is not a Business Day, the due date thereof
shall be the immediately following Business Day. 
 2.7 Pro Rata Treatment. Each payment (including prepayment) on account of
any fee and any reduction of the Term Loan Advances shall be made pro rata according to the Term Commitments of the relevant Lender. 

2.8 Taxes; Increased Costs. Borrowers, Agent and the Lenders each hereby agree to the terms and conditions set forth on
Addendum 1 attached hereto. 
 2.9 Treatment of Prepayment Charge and End of Term Charge. Borrowers agree that any Prepayment
Charge and any End of Term Charge payable shall be presumed to be the liquidated damages sustained by each Lender as the result of the early termination, and Borrowers agree that it is reasonable under the circumstances currently existing and
existing as of the Closing Date. The Prepayment Charge and the End of Term Charge shall also be payable in the event the Secured Obligations (and/or this Agreement) are satisfied or released by foreclosure (whether by power of judicial proceeding),
deed in lieu of foreclosure, or by any other means. Each Borrower expressly waives (to the fullest extent it may lawfully do so) the provisions of any present or future statute or law that prohibits or may prohibit the collection of the foregoing
Prepayment Charge and End of Term Charge in connection with any such acceleration. Each Borrower agrees (to the fullest extent that each may lawfully do so): (a) each of the Prepayment Charge and the End of Term Charge is reasonable and is the
product of an arm’s length transaction between sophisticated business people, ably represented by counsel; (b) each of the Prepayment Charge and the End of Term Charge shall be payable notwithstanding the then prevailing market rates at
the time payment is made; (c) there has been a course of conduct between the Lenders and Borrowers giving specific consideration in this transaction for such agreement to pay the Prepayment Charge and the End of Term Charge as a charge (and not
interest) in the event of prepayment or acceleration; (d) each Borrower shall be estopped from claiming differently than as agreed to in this paragraph. Each Borrower expressly acknowledges that their agreement to pay each of the Prepayment
Charge and the End of Term Charge to the Lenders as herein described was on the Closing Date and continues to be a material inducement to the Lenders to provide the Term Loans. 

SECTION 3. SECURITY INTEREST 

3.1 As security for the prompt and complete payment when due (whether on the payment dates or otherwise) of all the Secured
Obligations, each Borrower grants to Agent a security interest in all of such Borrower’s right, title, and interest in, to and under all of such Borrower’s personal property and other assets including without limitation the following
(except as set forth herein) whether now owned or hereafter acquired (collectively, the “Collateral”): (a) Receivables; (b) Equipment; (c) Fixtures; (d) General Intangibles (other than Intellectual Property), (e) Inventory;
(f) Investment Property; (g) Deposit Accounts; (h) Cash; (i) Goods; and all other tangible and intangible personal property of such Borrower whether now or hereafter owned or existing, leased, consigned by or to, or acquired by, such
Borrower and wherever located, and any of such Borrower’s property in the possession or under the control of Agent; and, to the extent not otherwise included, all Proceeds of each of the foregoing and all accessions to, substitutions and
replacements for, and rents, profits and products of each of the foregoing; provided, however, that the Collateral shall include all Accounts and General Intangibles that consist of rights to payment and proceeds from
the sale, licensing or  

  
 14 

 
disposition of all or any part, or rights in, the Intellectual Property (the “Rights to Payment”). Notwithstanding the foregoing, if a judicial authority (including a U.S. Bankruptcy
Court) holds that a security interest in the underlying Intellectual Property is necessary to have a security interest in the Rights to Payment, then the Collateral shall automatically, and effective as of the date of this Agreement, include the
Intellectual Property to the extent necessary to permit perfection of Agent’s security interest in the Rights to Payment. 

3.2 Notwithstanding the broad grant of the security interest set forth in Section 3.1, above, the Collateral shall not
include (a) nonassignable licenses or contracts, which by their terms require the consent of the licensor thereof or another party (but only to the extent such prohibition on transfer is enforceable under applicable law, including, without
limitation, Sections 9406, 9407 and 9408 of the UCC), (b) any “intent to use” trademarks at all times prior to the first use thereof, whether by the actual use thereof in commerce, the recording of a statement of use with the United States
Patent and Trademark Office or otherwise, or (c) assets as to which a security interest in such assets is prohibited by applicable law, rule or regulation, provided in the event such prohibition lapses, such assets shall automatically be
included in the Collateral. 
 3.3 The security interest granted in Section 3.1 of this Agreement shall continue until
the Secured Obligations (other than contingent indemnification or reimbursement obligations that are not yet due and payable) have been paid in full and Lender has no further commitment or obligation hereunder or under the other Loan Documents to
make any further Advances, and shall thereupon terminate, and Lender shall, at Borrower’s expense, take all actions reasonably requested by Borrower to evidence such termination. 

SECTION 4. CONDITIONS PRECEDENT TO LOAN 

The obligations of the Lenders to make the Loan hereunder are subject to the satisfaction by Borrowers of the following conditions: 

4.1 Initial Advance. On or prior to the Closing Date, Borrowers shall have delivered to Agent the following: 

(a) executed copies of the Loan Documents (other than the Warrant, which shall be an original), including without limitation,
the Guaranty, and all other documents and instruments reasonably required by Agent to effectuate the transactions contemplated hereby or to create and perfect the Liens of Agent with respect to all Collateral, in all cases in form and substance
reasonably acceptable to Agent; 
 (b) a legal opinion of Borrowers’ counsel in form and substance reasonably acceptable
to Agent 
 (c) a certified copy of resolutions of each Borrower’s Board of Directors evidencing approval of
(i) the Loan and other transactions evidenced by the Loan Documents; and (ii) with respect to Yumanity, the Warrant, and transactions evidenced thereby; 

(d) certified copies of the Certificate of Incorporation or Formation and the Bylaws or Operating Agreement, as amended through
the Closing Date, of each Borrower; 
 (e) a certificate of good standing for each Borrower from its state of organization
and similar certificates from all other jurisdictions where the failure to be qualified would have a Material Adverse Effect; 

(f) payment of the Due Diligence Fee (to the extent not already paid), Initial Facility Charge and reimbursement of
Agent’s and the Lenders’ current expenses reimbursable pursuant to this Agreement and which have been invoiced to Borrower prior to the date hereof, which amounts may be deducted from the initial Advance; 

  
 15 

 (g) all certificates of insurance and copies of each insurance policy
required hereunder; 
 (h) a payoff letter with respect existing Indebtedness to Oxford Finance LLC and Silicon Valley Bank,
in form and substance reasonably satisfactory to Agent; and 
 (i) such other documents as Agent may reasonably request. 

4.2 All Advances. On each Advance Date: 

(a) Agent shall have received (i) an Advance Request for the relevant Advance as required by Section 2.2(b), each
duly executed by each Borrower’s Chief Executive Officer or Chief Financial Officer, and (ii) any other documents Agent may reasonably request. 

(b) The representations and warranties set forth in this Agreement shall be true and correct in all material respects on and as
of the Advance Date with the same effect as though made on and as of such date, except to the extent such representations and warranties expressly relate to an earlier date. 

(c) Each Borrower shall be in compliance with all the terms and provisions set forth herein and in each other Loan Document on
its part to be observed or performed, and at the time of and immediately after such Advance no Event of Default shall have occurred and be continuing. 

(d) With respect to any Tranche 3 Advance, Borrowers shall have paid the Subsequent Facility Charge. 

(e) Each Advance Request shall be deemed to constitute a representation and warranty by each Borrower on the relevant Advance
Date as to the matters specified in paragraphs (b) and (c) of this Section 4.2 and as to the matters set forth in the Advance Request. 

4.3 No Default. As of the Closing Date and each Advance Date, (i) no fact or condition exists that would (or would, with
the passage of time, the giving of notice, or both) constitute an Event of Default and (ii) no event that has had or could reasonably be expected to have a Material Adverse Effect has occurred and is continuing. 

SECTION 5. REPRESENTATIONS AND WARRANTIES OF BORROWERS 

Each Borrower represents and warrants that: 

5.1 Organizational Status. Each Borrower is a corporation or limited liability company, as applicable, duly organized, legally
existing and in good standing under the laws its state of incorporation or formation, as applicable, and is duly qualified as a foreign corporation or limited liability company, as applicable, in all jurisdictions in which the nature of its business
or location of its properties require such qualifications and where the failure to be qualified could reasonably be expected to have a Material Adverse Effect. Each Borrower’s present name, former names (if any), locations, place of formation,
Tax identification number, organizational identification number and other information are correctly set forth in Exhibit B, as may be updated by Borrowers in a written notice (including any Compliance Certificate) provided to Agent after the Closing
Date. 
 5.2 Collateral. Borrowers own the Collateral and the Intellectual Property, free of all Liens, except for Permitted
Liens. Each Borrower has the power and authority to grant to Agent a Lien in the Collateral as security for the Secured Obligations. 

  
 16 

 5.3 Consents. Each Borrower’s execution, delivery and performance of
this Agreement and all other Loan Documents, and Yumanity’s execution of the Warrant, (i) have been duly authorized by all necessary corporate or limited liability company action of such Borrower, as applicable, (ii) will not result
in the creation or imposition of any Lien upon the Collateral, other than Permitted Liens and the Liens created by this Agreement and the other Loan Documents, (iii) do not violate any provisions of such Borrower’s Certificate of
Incorporation or Formation (as applicable), bylaws or operating agreement, or any, material law, regulation, order, injunction, judgment, decree or writ to which such Borrower is subject and (iv) except as described on Schedule 5.3, do not
violate in any material respect any material contract or agreement or require the consent or approval of any other Person which has not already been obtained. The individual or individuals executing the Loan Documents and the Warrant are duly
authorized to do so. 
 5.4 Material Adverse Effect. No event that has had or could reasonably be expected to have a Material
Adverse Effect has occurred and is continuing. No Borrower is aware of any event likely to occur that is reasonably expected to result in a Material Adverse Effect. 

5.5 Actions Before Governmental Authorities. There are no actions, suits or proceedings at law or in equity or by or before any
governmental authority now pending or, to the knowledge of a Borrower, threatened in writing against or affecting a Borrower or its property, that is reasonably expected to result in a Material Adverse Effect. 

5.6 Laws. Neither Borrower nor any Subsidiary is in violation of any law, rule or regulation, or in default with respect to any
judgment, writ, injunction or decree of any governmental authority, where such violation or default is reasonably expected to result in a Material Adverse Effect. No Borrower is in default in any manner under any provision of any agreement or
instrument evidencing material Indebtedness, or any other material agreement to which it is a party or by which it is bound and for which such default would reasonably be expected to result in a Material Adverse Effect. 

Neither Borrower nor any Subsidiary is an “investment company” or a company “controlled” by an
“investment company” under the Investment Company Act of 1940, as amended. Neither Borrower nor any Subsidiary is engaged as one of its important activities in extending credit for margin stock (under Regulations X, T and U of the Federal
Reserve Board of Governors). Each Borrower and each Subsidiary has complied in all material respects with the Federal Fair Labor Standards Act. Neither Borrower nor any of its Subsidiaries is a “holding company” or an “affiliate”
of a “holding company” or a “subsidiary company” of a “holding company” as each term is defined and used in the Public Utility Holding Company Act of 2005. Neither Borrower’s nor any Subsidiary’s properties or
assets has been used by such Borrower or Subsidiary or, to Borrowers’ knowledge, by previous Persons, in disposing, producing, storing, treating, or transporting any hazardous substance other than in material compliance with applicable laws.
Each Borrower and Subsidiary has obtained all consents, approvals and authorizations of, made all declarations or filings with, and given all notices to, all governmental authorities that are necessary to continue their respective businesses as
currently conducted. 
 None of Borrowers, any of their respective Subsidiaries, or any of Borrowers’ or
Subsidiaries’ Affiliates or any of their respective agents acting or benefiting in any capacity in connection with the transactions contemplated by this Agreement is (i) in violation of any Anti Terrorism Law, (ii) engaging in or
conspiring to engage in any transaction that evades or avoids, or has the purpose of evading or avoiding or attempts to violate, any of the prohibitions set forth in any Anti Terrorism Law, or (iii) is a Blocked Person. None of Borrowers, any
of their respective Subsidiaries, or to the knowledge of Borrowers and any of their respective Affiliates or agents, acting or benefiting in any capacity in connection with the transactions contemplated by this Agreement, (x) conducts any
business or engages in making or receiving any contribution of funds, goods or services to or for the benefit of any Blocked Person, or (y) deals in, or otherwise engages in any transaction relating to, any property or interest in property
blocked pursuant to Executive Order No. 13224, any similar executive order or other Anti Terrorism Law. None of the funds to be provided under this Agreement will be used, directly or indirectly, (a) for any activities in violation of any
applicable anti-money laundering, economic sanctions and anti-bribery laws and regulations laws and regulations or (b) for any payment to any governmental official or employee, political party, official of a political party, candidate for
political office, or anyone else acting in an official capacity, in order to obtain, retain or direct business or obtain any improper advantage, in violation of the United States Foreign Corrupt Practices Act of 1977, as amended. 

  
 17 

 5.7 Information Correct and Current. No information, report, Advance
Request, financial statement, exhibit or schedule furnished, by or on behalf of Borrower to Agent in connection with any Loan Document or included therein or delivered pursuant thereto (other than the projections) contained, or, when taken as a
whole, contains or will contain any material misstatement of fact or, when taken together with all other such information or documents, omitted, omits or will omit to state any material fact necessary to make the statements therein, in the light of
the circumstances under which they were, are or will be made, not materially misleading at the time such statement was made or deemed made. Additionally, any and all financial or business projections provided by a Borrower to Agent, whether prior to
or after the Closing Date, shall be (i) provided in good faith and based on the most current data and information available to Borrower, and (ii) the most current of such projections provided to Parent’s Boards of Directors (it being
understood that such projections are subject to significant uncertainties and contingencies, many of which are beyond the control of Borrower, that no assurance is given that any particular projections will be realized and that actual results may
differ materially). 
 5.8 Tax Matters. Except as described on Schedule 5.8, (a) each Borrower and its Subsidiaries have
filed all material federal and state income Tax returns and other material Tax returns that they are required to file, (b) each Borrower and its Subsidiaries have duly paid or fully reserved for all material federal and state income Taxes and
other material Taxes or installments thereof that they are required to pay, except Taxes being contested in good faith by appropriate proceedings and for which such Borrower or Subsidiary maintain adequate reserves in accordance with GAAP, and
(c) to the Borrowers’ knowledge, no proposed or pending Tax assessments, deficiencies, audits or other proceedings with respect to any Borrower or Subsidiary have, had or could reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect. 
 5.9 Intellectual Property Claims. Borrowers are the sole owners of, or otherwise has
the right to use, the Intellectual Property material to Borrower’s business. Except as described on Schedule 5.9, (i) each of the material Copyrights, Trademarks and Patents is valid and enforceable, (ii) no material part of the
Intellectual Property has been judged invalid or unenforceable, in whole or in part, and (iii) to the best of Borrower’s knowledge, no claim has been made in writing alleging to a Borrower that any material part of the Intellectual
Property violates the rights of any third party. Exhibit C is a true, correct and complete list of each of each Borrower’s Patents, registered Trademarks, registered Copyrights, and material agreements under which each Borrower licenses
Intellectual Property from third parties (other than shrink-wrap software licenses or other licenses which, if terminated, would not reasonably be expected to result in a Material Adverse Effect), together with application or registration numbers,
as applicable, owned by such Borrower or any Subsidiary, in each case as of the Closing Date. No Borrower is in material breach of, or has failed to perform any material obligations under, any of the foregoing contracts, licenses or agreements and,
to Borrowers’ knowledge, no third party to any such contract, license or agreement is in material breach thereof or has failed to perform any material obligations thereunder, except as would not reasonably be expected to result in a Material
Adverse Effect. 
 5.10 Intellectual Property. To the best of Borrower’s knowledge, except as described on Schedule
5.10, Borrowers have all material rights with respect to Intellectual Property necessary or material in the operation or conduct of Borrowers’ business as currently conducted and proposed to be conducted by Borrowers. Without limiting the
generality of the foregoing, and in the case of Licenses, except for restrictions that are unenforceable under Division 9 of the UCC, Borrowers have the right, to the extent required to operate Borrowers’ business, to freely transfer, license
or assign Intellectual Property necessary or material in the operation or conduct of Borrowers’ business as currently conducted and proposed to be conducted by Borrowers, without condition, restriction or payment of any kind (other than license
payments in the ordinary course of business) to any third party, and Borrowers own or have the right to use, pursuant to valid licenses, all software development tools, library functions, compilers and all other third-party software and other items
that are material to Borrowers’ business and used in the design, development, promotion, sale, license, manufacture, import, export, use or distribution of Borrower Products except customary covenants in inbound license agreements and equipment
leases where a Borrower is the licensee or lessee. No Borrower is a party to, nor is it bound by, any Restricted License. 

  
 18 

 No material software or other materials used by a Borrower or Subsidiary (or used in any
Borrower Products or any Subsidiaries’ products) are subject to an open-source or similar license (including but not limited to the General Public License, Lesser General Public License, Mozilla Public License, or Affero License) (collectively,
“Open Source Licenses”) in a manner that would cause such software or other materials to have to be (i) distributed to third parties at no charge or a minimal charge (royalty-free basis); (ii) licensed to third parties to modify, make
derivative works based on, decompile, disassemble, or reverse engineer; or (iii) used in a manner that does could require disclosure or distribution in source code form. 

5.11 Borrower Products. Except as described on Schedule 5.11, no material Intellectual Property owned by a Borrower or Borrower
Product has been or is subject to any actual or, to the knowledge of Borrowers, threatened in writing litigation, proceeding (including any proceeding in the United States Patent and Trademark Office or any corresponding foreign office or agency) or
outstanding decree, order, judgment, settlement agreement or stipulation that restricts in any manner the applicable Borrower’s use, transfer or licensing thereof or that would reasonably be expected to adversely affect the validity, use or
enforceability thereof. There is no decree, order, judgment, agreement, stipulation, arbitral award or other provision entered into in connection with any litigation or proceeding that obligates a Borrower to grant licenses or ownership interest in
any future Intellectual Property material to the operation or conduct of the business of Borrowers or Borrower Products. No Borrower has received any written notice or claim, or, to the knowledge of Borrower, oral notice or claim, challenging or
questioning a Borrower’s ownership in any material Intellectual Property (or written notice of any claim challenging or questioning the ownership in any material licensed Intellectual Property of the owner thereof) or suggesting that any third
party has any claim of legal or beneficial ownership with respect thereto nor, to Borrowers’ knowledge, is there a reasonable basis for any such claim. To the Borrower’s knowledge, neither any Borrower’s use of its material
Intellectual Property nor the production and sale of Borrower Products infringes the material Intellectual Property or other rights of others. 

5.12 Financial Accounts. Exhibit D, as may be updated by Borrowers in a written notice provided to Agent after the Closing
Date, is a true, correct and complete list of (a) all banks and other financial institutions at which any Borrower or Subsidiary maintains Deposit Accounts and (b) all institutions at which any Borrower or Subsidiary maintains an account
holding Investment Property, and such exhibit correctly identifies the name, address and telephone number of each bank or other institution, the name in which the account is held, a description of the purpose of the account, and the complete account
number therefor. 
 5.13 Employee Loans. No Borrower has outstanding loans to any employee, officer or director of such
Borrower nor has any Borrower guaranteed the payment of any loan made to an employee, officer or director of such Borrower by a third party. 

5.14 Capitalization and Subsidiaries. Borrowers’ capitalization as of the Closing Date is set forth on Schedule 5.14
annexed hereto. No Borrower owns any stock, partnership interest or other securities of any Person, except for Permitted Investments. Attached as Schedule 1, as may be updated by Borrowers in a written notice provided after the Closing Date, is a
true, correct and complete list of each Subsidiary. 
 SECTION 6. INSURANCE; INDEMNIFICATION 

6.1 Coverage. Borrowers shall cause to be carried and maintained commercial general liability insurance, on an occurrence
form, against risks customarily insured against by businesses of Borrower’s size in Borrowers’ line of business in similar locations. Such risks shall include the risks of bodily injury, including death, property damage, personal injury,
advertising injury, and contractual liability per the terms of the indemnification agreement found in Section 6.3. Borrowers must maintain a minimum of $2,000,000 of commercial general liability insurance for each occurrence. Borrowers have and
agree to maintain a minimum of $2,000,000 of directors’ and officers’ insurance for each occurrence and $5,000,000 in the aggregate. So long as there are any Secured Obligations (other than inchoate indemnification or reimbursement
obligations or other obligations which, by their terms, survive termination of this Agreement) outstanding, Borrowers shall also cause to be carried and maintained insurance upon the Collateral, insuring

  
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against all risks of physical loss or damage howsoever caused, in an amount not less than the full replacement cost of the Collateral, provided that such insurance may be subject to standard
exceptions and deductibles. If Borrowers fail to obtain the insurance called for by this Section 6.1 or fails to pay any premium thereon or fails to pay any other amount which a Borrower is obligated to pay under this Agreement or any other
Loan Document or which may be required to preserve the Collateral, Agent may obtain such insurance or make such payment, and all amounts so paid by Agent are immediately due and payable, bearing interest at the then highest rate applicable to the
Secured Obligations, and secured by the Collateral. Agent will make reasonable efforts to provide Borrowers with notice of Agent obtaining such insurance at the time it is obtained or within a reasonable time thereafter. No payments by
Agent are deemed an agreement to make similar payments in the future or Agent’s waiver of any Event of Default. 
 6.2
Certificates. Borrowers shall deliver to Agent certificates of insurance that evidence Borrowers’ compliance with its insurance obligations in Section 6.1 and the obligations contained in this Section 6.2. Borrowers’ insurance
certificate shall state Agent (shown as “Hercules Capital, Inc.”, as “Agent”) is an additional insured for commercial general liability, a lenders loss payable for all risk property damage insurance, subject to the insurer’s
approval, and a lenders loss payable for property insurance and additional insured for liability insurance for any future insurance that Borrowers may acquire from such insurer. Notwithstanding the foregoing, (i) so long as no Event of Default
has occurred and is continuing, Borrower shall have the option of applying the proceeds of any casualty policy up to $250,000 in the aggregate for all losses under all casualty policies in any one (1) year, toward the replacement or repair of
destroyed or damaged property; provided that any such replaced or repaired property (A) shall be of equal or like value as the replaced or repaired Collateral and (B) shall be deemed Collateral in which Agent has been granted a first
priority security interest (subject only to Permitted Liens that are permitted pursuant to the terms of this Agreement to have superior priority to Agent’s Lien), and (ii) after the occurrence and during the continuance of an Event of
Default, all proceeds payable under such casualty policy shall, at the option of Agent, be payable to Agent on account of the Secured Obligations. Borrower shall deliver additional insured endorsements for liability and lender’s loss payable
endorsements for all risk property damage insurance pursuant to Section 7.16(b) hereof. All certificates of insurance will provide for a minimum of thirty (30) days advance written notice to Agent of cancellation (other than cancellation
for non-payment of premiums, for which ten (10) days’ advance written notice shall be sufficient). Any failure of Agent to scrutinize such insurance certificates for compliance is not a waiver of any
of Agent’s rights, all of which are reserved. Upon request by Agent, Borrowers shall provide Agent with copies of each insurance policy, and upon entering or amending any insurance policy required hereunder, Borrowers shall provide Agent with
copies of such policies and shall promptly deliver to Agent updated insurance certificates with respect to such policies. 

6.3 Indemnity. Each Borrower agrees to indemnify and hold Agent, the Lenders and their officers, directors, employees, agents, in-house attorneys, representatives and shareholders (each, an “Indemnified Person”) harmless from and against any and all claims, reasonable and documented out-of-pocket costs, expenses, damages and liabilities (including such claims, costs, expenses, damages and liabilities based on liability in tort, including strict liability in tort), including reasonable
and documented out-of-pocket attorneys’ fees and disbursements and other costs of investigation or defense (including those incurred upon any appeal) (collectively,
“Liabilities”), that may be instituted or asserted against or incurred by such Indemnified Person as the result of credit having been extended, suspended or terminated under this Agreement and the other Loan Documents or the administration
of such credit, or in connection with or arising out of the transactions contemplated hereunder and thereunder, or any actions or failures to act in connection therewith, or arising out of the disposition or utilization of the Collateral, excluding
in all cases Liabilities to the extent resulting solely from any Indemnified Person’s gross negligence or willful misconduct. This Section 6.3 shall not apply with respect to Taxes other than any Taxes that represent losses, claims,
damages, etc. arising from any non-Tax claim. In no event shall any Indemnified Person be liable on any theory of liability for any special, indirect, consequential or punitive damages (including any loss of
profits, business or anticipated savings). This Section 6.3 shall survive the repayment of indebtedness under, and otherwise shall survive the expiration or other termination of, the Loan Agreement. 

  
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 SECTION 7. COVENANTS OF BORROWERS 

Each Borrower agrees as follows: 

7.1 Financial Reports. Borrowers shall furnish to Agent the financial statements and reports listed hereinafter (the
“Financial Statements”): 
 (a) as soon as practicable (and in any event within 30 days) after the end of each
month, unaudited interim and year-to-date financial statements as of the end of such month (prepared on a consolidated and consolidating basis, if applicable), including
balance sheet and related statements of income and cash flows accompanied by a report detailing any material contingencies (including the commencement of any material litigation by or against a Borrower) or any other occurrence that could reasonably
be expected to have a Material Adverse Effect, all certified by a Borrower’s Chief Executive Officer or Chief Financial Officer to the effect that they have been prepared in accordance with GAAP, except (i) for the absence of footnotes,
(ii) that they are subject to normal year end adjustments, and (iii) they do not contain certain non-cash items that are customarily included in quarterly and annual financial statements; 

(b) as soon as practicable (and in any event within 30 days) after the end of each calendar quarter, unaudited interim and year-to-date financial statements as of the end of such calendar quarter (prepared on a consolidated and consolidating basis, if applicable), including balance sheet and
related statements of income and cash flows accompanied by a report detailing any material contingencies (including the commencement of any material litigation by or against a Borrower) or any other occurrence that would reasonably be expected to
have a Material Adverse Effect, certified by a Borrower’s Chief Executive Officer or Chief Financial Officer to the effect that they have been prepared in accordance with GAAP, except (i) for the absence of footnotes, and (ii) that
they are subject to normal year end adjustments; as well as the most recent capitalization table for Parent, including the weighted average exercise price of employee incentive options; 

(c) as soon as practicable (and in any event within one hundred eighty (180) days) after the end of each fiscal year (and
after the effective date of an initial public offering of Parent, within 90 days or such later date as permitted by applicable law), unqualified (other than as to going concern or a qualification resulting solely from the scheduled maturity of the
Advances occurring within one (1) year from the date such opinion is delivered) audited financial statements as of the end of such year (prepared on a consolidated and consolidating basis, if applicable), including balance sheet and related
statements of income and cash flows, and setting forth in comparative form the corresponding figures for the preceding fiscal year, certified by a firm of independent certified public accountants selected by Borrowers and reasonably acceptable to
Agent, accompanied by any management report from such accountants; 
 (d) as soon as practicable (and in any event within 30
days) after the end of each month, a Compliance Certificate in the form of Exhibit E; 
 (e) as soon as practicable
(and in any event within 30 days) after the end of each month, a report showing agings of accounts receivable and accounts payable; 

(f) promptly after the sending or filing thereof, as the case may be, (i) copies of any proxy statements, financial
statements or reports that a Parent has made generally available to holders of its preferred stock and (ii) copies of any regular, periodic and special reports or registration statements that a Borrower files with the Securities and Exchange
Commission or any governmental authority that may be substituted therefor, or any national securities exchange. Documents required to be delivered pursuant to the terms of clause (ii) hereof (to the extent any such documents are included in
materials otherwise filed with the SEC) may be delivered electronically and if so delivered, shall be deemed to have been delivered on the date on which Borrower posts such documents, or provides a link thereto, on Borrower’s website on the
Internet at Borrower’s website address; 

  
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 (g) promptly following board meetings and in the same manner as it gives to
its directors, summaries of all historical performance materials that a Borrower provides to its directors in connection with meetings of the Board of Directors; 

(h) financial and business projections promptly following their approval by Borrower’s or Parent’s Boards of
Directors (as applicable), and in any event, within 60 days after the end of Borrower’s fiscal year, as well as budgets, operating plans and other financial information reasonably requested by Agent; and 

(i) immediate notice if any Borrower or Subsidiary has knowledge that a Borrower, Subsidiary or Affiliate of a Borrower, is
listed on the OFAC Lists or (a) is convicted on, (b) pleads nolo contendere to, (c) is indicted on, or (d) is arraigned and held over on charges involving money laundering or predicate crimes to money laundering. 

Borrowers shall provide Agent with prompt written notice of any material change in its (a) accounting policies or reporting practices, except as required
by GAAP or (b) fiscal years or fiscal quarters. The fiscal year of Borrowers shall end on December 31. 
 The executed Compliance Certificate, and all
Financial Statements required to be delivered pursuant to clauses (a), (b), (c) and (d) shall be sent via e-mail to financialstatements@htgc.com with a copy to legal@htgc.com and bjadot@htgc.com
and mdutra@htgc.com provided, that if e-mail is not available or sending such Financial Statements via e-mail is not possible, they shall be faxed to Agent at: (650) 473-9194, attention Account Manager: Yumanity. 
 7.2 Management Rights. Borrowers shall
permit any representative that Agent or the Lenders authorizes, including its attorneys and accountants, to inspect the Collateral and examine and make copies and abstracts of the books of account and records of Borrowers at reasonable times and
upon reasonable notice during normal business hours; provided, however, that so long as no Event of Default has occurred and is continuing, such examinations shall be limited to no more often than once per fiscal year. In addition, any such
representative shall have the right to meet with management and officers of Borrowers to discuss such books of account and records. In addition, in connection with any such examination, Agent or the Lenders shall be entitled at reasonable times and
intervals and upon reasonable prior written notice to consult with and advise the management and officers of Borrowers concerning significant business issues affecting Borrowers. Such consultations shall not unreasonably interfere with
Borrowers’ business operations. The parties intend that the rights granted Agent and the Lenders shall constitute “management rights” within the meaning of 29 C.F.R.
Section 2510.3-101(d)(3)(ii), but that any advice, recommendations or participation by Agent or the Lenders with respect to any business issues shall not be deemed to give Agent or the Lenders, nor be
deemed an exercise by Agent or the Lenders of, control over Borrowers’ management or policies. 
 7.3 Further
Assurances. Each Borrower shall from time to time execute, deliver and file, alone or with Agent, any financing statements, security agreements, collateral assignments, notices, control agreements, promissory notes or other documents to perfect,
give the highest priority to Agent’s Lien on the Collateral (subject to Permitted Liens) or otherwise evidence Agent’s rights herein as Agent may reasonably request from time to time or as otherwise specifically required under the Loan
Documents. Each Borrower shall from time to time procure any instruments or documents as may be reasonably requested by Agent, and take all further action that may be necessary, or that Agent may reasonably request, to perfect and protect the Liens
granted hereby and thereby in accordance with the Loan Documents. In addition, and for such purposes only, each Borrower hereby authorizes Agent to execute and deliver on behalf of such Borrower and to file such financing statements, collateral
assignments, notices, control agreements, security agreements and other documents without the signature of such Borrower either in Agent’s name or in the name of Agent as agent and
attorney-in-fact for such Borrower. Each Borrower shall protect and defend such Borrower’s title to the Collateral and Agent’s Lien thereon against all Persons
claiming any interest adverse to such Borrower or Agent other than Permitted Liens. 

  
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 7.4 Indebtedness. No Borrower shall create, incur, assume, guarantee or be
or remain liable with respect to any Indebtedness, or permit any Subsidiary so to do, other than Permitted Indebtedness, or prepay any Subordinated Indebtedness or take any actions which impose on a Borrower an obligation to prepay any Indebtedness,
except for (a) the conversion of Indebtedness into equity securities and the payment of cash in lieu of fractional shares in connection with such conversion, (b) purchase money Indebtedness pursuant to its then applicable payment schedule,
(c) prepayment by any Subsidiary of (i) inter-company Indebtedness owed by such Subsidiary to any Borrower, or (ii) if such Subsidiary is not a Borrower, intercompany Indebtedness owed by such Subsidiary to another Subsidiary that is
not a Borrower or (d) as otherwise permitted hereunder or approved in writing by Agent. 
 7.5 Collateral. Each Borrower
shall at all times keep the Collateral, the Intellectual Property and all other property and assets used in Borrowers’ business or in which such Borrower now or hereafter holds any interest free and clear from any legal process or Liens
whatsoever (except for Permitted Liens), and shall give Agent prompt written notice of any known legal process affecting the Collateral, the Intellectual Property, such other property and assets, in each case, with a value in excess of $250,000, or
any Liens thereon, provided however, that the Collateral and such other property and assets may be subject to Permitted Liens except that there shall be no Liens whatsoever on Intellectual Property. No Borrower shall agree with any Person other than
Agent or the Lenders not to encumber its property (other than holders of Permitted Liens). No Borrower shall enter into or suffer to exist or become effective any agreement that prohibits or limits the ability of any Borrower to create, incur,
assume or suffer to exist any Lien upon any of its property (including Intellectual Property), whether now owned or hereafter acquired, to secure its obligations under the Loan Documents to which it is a party other than (a) this Agreement and
the other Loan Documents, (b) any agreements governing any purchase money Liens or capital lease obligations otherwise permitted hereby (in which case, any prohibition or limitation shall only be effective against the assets financed thereby)
and (c) customary restrictions on the assignment of leases, licenses and other agreements. Each Borrower shall cause its Subsidiaries to protect and defend such Subsidiary’s title to its assets from and against all Persons claiming any
interest adverse to such Subsidiary, and each Borrower shall cause its Subsidiaries at all times to keep such Subsidiary’s property and assets free and clear from any known legal process or Liens whatsoever (except for Permitted Liens, provided
however, that there shall be no Liens whatsoever on Intellectual Property), and shall give Agent prompt written notice of any legal process affecting such Subsidiary’s assets with a value in excess of $250,000. 

7.6 Investments. No Borrower shall directly or indirectly acquire or own, or make any Investment in or to any Person, or permit
any of its Subsidiaries so to do, other than Permitted Investments. 
 7.7 Distributions. No Borrower shall (nor shall permit
any Subsidiary to), (a) repurchase or redeem any class of stock or other Equity Interest other than, pursuant to employee, director or consultant repurchase plans, stock option plans or agreements, restricted stock agreements or other similar
agreements of Parent, provided, however, in each case the aggregate repurchase or redemption price does not exceed $250,000, or (b) declare or pay any cash dividend or make any other cash distribution on any class of stock or other Equity
Interest, except that a Subsidiary may pay dividends or make other distributions to a Borrower or any Subsidiary, or (c) lend money to any employees, officers or directors or guarantee the payment of any such loans granted by a third party in
excess of $250,000 in the aggregate outstanding other than Permitted Investments or (d) waive, release or forgive any Indebtedness owed by any employees, officers or directors in excess of $250,000 in the aggregate. 

7.8 Transfers. Except for Permitted Transfers, no Borrower shall, nor shall allow any Subsidiary to, voluntarily or
involuntarily transfer, sell, lease, license, lend or in any other manner convey any equitable, beneficial or legal interest in any material portion of its assets. 

7.9 Mergers or Acquisitions. No Borrower shall merge or consolidate, nor permit any of its Subsidiaries to merge or
consolidate, with or into any other business organization (other than mergers or consolidations of (a) a Subsidiary which is not a Borrower into another Subsidiary or into a Borrower or (b) a Borrower into another Borrower), or acquire, or
permit any of its Subsidiaries to acquire, in each case including for the avoidance of doubt through a merger, purchase, in-licensing arrangement or any similar transaction, all or substantially all of the
capital stock or any property of another Person. 

  
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 7.10 Taxes. Each Borrower shall, and shall cause each of its Subsidiaries
to, pay when due all material Taxes of any nature whatsoever now or hereafter imposed or assessed against such Borrower or the Collateral or upon such Borrower’s ownership, possession, use, operation or disposition thereof or upon such
Borrower’s rents, receipts or earnings arising therefrom, unless the same are being contested in good faith and by appropriate proceedings diligently conducted and for which adequate reserves are being maintained in accordance with GAAP. Each
Borrower shall, and shall cause each of its Subsidiaries to, file on or before the due date therefor (taking into account proper extensions) all federal and state income Tax returns and other material Tax returns required to be filed. 

7.11 Organizational Form Changes. Neither a Borrower nor any Subsidiary shall change its legal name, legal form or jurisdiction
of formation without ten (10) days’ prior written notice to Agent. Neither a Borrower nor any Subsidiary shall suffer a Change in Control unless, as part of the transaction(s) resulting in such a Change in Control, the Secured Obligations
(other than inchoate indemnity obligations) are repaid in full in cash. Neither a Borrower nor any Subsidiary shall relocate its chief executive office or its principal place of business unless: (i) it has provided prior written notice to
Agent; and (ii) such relocation shall be within the continental United States of America. Neither a Borrower nor any Subsidiary shall relocate any tangible item of Collateral with an aggregate value in excess of $250,000 (other than
(x) sales of Inventory in the ordinary course of business, (y) relocations of mobile Equipment in the possession of its employees or agents, and (z) relocations of Collateral from a location described on Exhibit B to another location
described on Exhibit B) unless (i) it has provided prompt written notice to Agent, (ii) such relocation is within the continental United States of America and, (iii) if such relocation is to a third party bailee, it has delivered a
bailee agreement in form and substance reasonably acceptable to Agent. 
 7.12 Deposit Accounts. Neither a Borrower nor any
Subsidiary shall maintain any Deposit Accounts, or accounts holding Investment Property, except, in each case, with respect to which Agent has an Account Control Agreement, provided the foregoing shall not apply to Deposit Accounts used exclusively
to maintain cash collateral subject to a lien described in clause (xiv) or (xix) of the defined term “Permitted Lien”. 

7.13 Borrowers shall notify Agent of each Subsidiary formed subsequent to the Closing Date and, within twenty (20) days of
formation, shall cause any such Subsidiary to execute and deliver to Agent a Joinder Agreement. 
 7.14 [Reserved] 

7.15 Notification of Event of Default. Borrowers shall notify Agent promptly and in any case within three (3) Business
Days of Borrower obtaining knowledge of the occurrence of any Event of Default. 
 7.16 SBA. One or more affiliates of Agent
have received a license from the U.S. Small Business Administration (“SBA”) to extend loans as a small business investment company (“SBIC”) pursuant to the Small Business Investment Act of 1958, as amended, and the associated
regulations (collectively, the “SBIC Act”). Portions of the Loan to Borrowers may be by a Lender that is a SBIC. Addendum 2 to this Agreement outlines various responsibilities of Agent, each Lender and Borrowers associated with a loan made
by a SBIC, and such Addendum 2 is hereby incorporated in this Agreement. 
 7.17 Use of Proceeds. Borrowers agree that the
proceeds of the Loans shall be used solely to refinance existing indebtedness, to pay related fees and expenses in connection with this Agreement and for working capital and general corporate purposes. The proceeds of the Term Loan will not be used
in violation of Anti-Corruption Laws or applicable Sanctions. 
 7.18 [Reserved] 

  
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 7.19 Compliance with Laws. 

Borrowers shall maintain, and shall cause their respective Subsidiaries to maintain, compliance in all material respect with
all applicable laws, rules or regulations (including any law, rule or regulation with respect to the making or brokering of loans or financial accommodations), and shall, or cause its Subsidiaries to, obtain and maintain all required governmental
authorizations, approvals, licenses, franchises, permits or registrations reasonably necessary in connection with the conduct of Borrowers’ business. 

Neither a Borrower nor any of its Subsidiaries shall, nor shall a Borrower or any of its Subsidiaries permit any Affiliate to,
directly or indirectly, knowingly enter into any documents, instruments, agreements or contracts with any Person listed on the OFAC Lists. Neither Borrowers nor any of their respective Subsidiaries shall, nor shall a Borrower or any of its
Subsidiaries, permit any Affiliate to, directly or indirectly, (i) conduct any business or engage in any transaction or dealing with any Blocked Person, including, without limitation, the making or receiving of any contribution of funds, goods
or services to or for the benefit of any Blocked Person, (ii) deal in, or otherwise engage in any transaction relating to, any property or interests in property blocked pursuant to Executive Order No. 13224 or any similar executive order
or other Anti-Terrorism Law, or (iii) engage in or conspire to engage in any transaction that evades or avoids, or has the purpose of evading or avoiding, or attempts to violate, any of the prohibitions
set forth in Executive Order No. 13224 or other Anti-Terrorism Law. 
 Borrowers
has implemented and maintains in effect policies and procedures designed to ensure compliance by Borrowers, their respective Subsidiaries and their respective directors, officers, employees and agents with Anti-Corruption Laws and applicable
Sanctions, and Borrowers, their respective Subsidiaries and their respective officers and employees and to the knowledge of Borrowers, their respective directors and agents, are in compliance with Anti-Corruption Laws and applicable Sanctions in all
material respects. 
 None of Borrowers, any of their respective Subsidiaries or any of their respective directors, officers
or employees, or to the knowledge of Borrowers, any agent for Borrowers or their respective Subsidiaries that will act in any capacity in connection with or benefit from the credit facility established hereby, is a Sanctioned Person. No Loan, use of
proceeds or other transaction contemplated by this Agreement will violate Anti-Corruption Laws or applicable Sanctions. 

7.20 Intellectual Property. Each Borrower shall (i) protect, defend and maintain the validity and enforceability of its
Intellectual Property material to its business; (ii) promptly advise Agent in writing of material infringements of its Intellectual Property material to its business of which such Borrower is aware; and (iii) not allow any Intellectual
Property material to its business to be abandoned, forfeited or dedicated to the public without Agent’s written consent. 

7.21 Transactions with Affiliates. No Borrower shall, nor shall permit any Subsidiary to, directly or indirectly, enter into or
permit to exist any transaction of any kind with any Affiliate of a Borrower or such Subsidiary on terms that are less favorable to the applicable Borrower or Subsidiary, as the case may be, than those that might be obtained in an arm’s length
transaction from a Person who is not an Affiliate of such Borrower or Subsidiary. 
 7.22 Post-Closing Obligations. To the
extent not actually delivered as of the Closing Date or otherwise waived by Agent in its sole discretion, Borrower shall deliver to Agent the items set forth on Schedule :7.22 no later than the time specified therein. 

  
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 SECTION 8. [Reserved.] 

SECTION 9. EVENTS OF DEFAULT 

The occurrence of any one or more of the following events shall be an “Event of Default”: 

9.1 Payments. Borrowers fails to pay (i) any scheduled payment of principal or interest due under this Agreement or any of
the other Loan Documents on the due date or (ii) any other payment due on the Secured Obligations hereunder within three (3) Business Days; provided, however, that an Event of Default shall not occur on account of a failure to pay due
solely to an administrative or operational error of Agent or the Lenders or the applicable Borrower’s bank if such Borrower had the funds to make the payment when due and makes the payment within three (3) Business Days following
Borrower’s knowledge of such failure to pay; or 
 9.2 Covenants. Borrower breaches or defaults in the performance of
any covenant or Secured Obligation under this Agreement, or any of the other Loan Documents or any other agreement among Borrower, Agent and the Lenders, and (a) with respect to a default under any covenant under this Agreement (other than
under Sections 6, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 7.15, 7.16, 7.17, 7.19, 7.21 and 7.22), any other Loan Document, or any other agreement among Borrower, Agent and the Lenders, such default continues for more than ten (10) days after the earlier
of the date on which (i) Agent or the Lenders has given notice of such default to Borrower and (ii) Borrower has actual knowledge of such default or (b) with respect to a default under any of Sections 6, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9,
7.15, 7.16, 7.17, 7.21 and 7.22, the occurrence of such default; or 
 9.3 Material Adverse Effect. A circumstance has
occurred that could reasonably be expected to have a Material Adverse Effect; provided that solely for purposes of this Section 9.3, the occurrence of any of the following, in and of itself, shall not constitute a Material Adverse Effect:
(a) adverse results or delays in any nonclinical or clinical trial or (b) the denial, delay or limitation of approval of, or taking of any other regulatory action by, the FDA, provided that, in determining whether a Material Adverse Effect
has occurred, Agent’s primary, though not sole, consideration will be whether Borrower has or will have sufficient cash resources to repay the Secured Obligations as and when due and the clear intention of Borrower’s investors to continue
to fund Borrower in the amounts and timeframe necessary, in Agent’s good faith judgment, to enable Borrower to satisfy the Secured Obligations as they become due and payable is the most significant criterion Agent shall consider in making any
such determination; or 
 9.4 Representations. Any representation or warranty made by Borrower in any Loan Document or in the
Warrant shall have been false or misleading in any material respect when made or when deemed made; or 
 9.5 Insolvency.
Borrowers (A) (i) shall make an assignment for the benefit of creditors; or (ii) shall be unable to pay its debts as they become due in the ordinary course of business, or be unable to pay or perform under the Loan Documents, or shall
become insolvent; or (iii) shall file a voluntary petition in bankruptcy; or (iv) shall file any petition, answer, or document seeking for itself any reorganization, arrangement, composition, readjustment, liquidation, dissolution or
similar relief under any present or future statute, law or regulation pertinent to such circumstances except as permitted under Section 7.10 of this Agreement; or (v) shall seek or consent to or acquiesce in the appointment of any trustee,
receiver, or liquidator of a Borrower or of all or any substantial part (i.e., 33-1/3% or more) of the assets or property of a Borrower; or (vi) shall cease operations of its business as its business has
normally been conducted, or terminate substantially all of its employees; or (vii) a Borrower or its directors or majority shareholders shall take any action initiating any of the foregoing actions described in clauses (i) through (vi); or
(B) either (i) forty-five (45) days shall have expired after the commencement of an involuntary action against Borrower seeking reorganization, arrangement, composition, readjustment, liquidation, dissolution or similar relief under
any present or future statute, law or regulation, without such action being dismissed or all orders or proceedings thereunder affecting the operations or the business of Borrowers being stayed; or (ii) a stay of any such order or proceedings
shall thereafter be set aside and the action setting it aside shall not be timely appealed; or (iii) a Borrower shall file any answer admitting or not contesting the material allegations of a petition filed against a Borrower in any such
proceedings; or (iv) the court in which such proceedings are pending shall enter a decree or order granting the relief sought in any such proceedings; or (v) forty-five (45) days shall have expired after the appointment, without the
consent or acquiescence of any Borrower, of any trustee, receiver or liquidator of a Borrower or of all or any substantial part of the properties of Borrowers without such appointment being vacated; or 

  
 26 

 9.6 Attachments; Judgments. Any portion of Borrowers’ assets valued in
excess of $250,000 is attached or seized, or a levy is filed against any such assets that is not removed, rescinded or dismissed within thirty (30) days, or a judgment or judgments is/are entered for the payment of money (not covered by
independent third party insurance as to which liability has not been rejected by such insurance carrier), individually or in the aggregate, of at least $250,000, or any Borrower is enjoined or in any way prevented by court order from conducting any
part of its business; or 
 9.7 Other Obligations. The occurrence of any default (beyond any applicable grace or cure
periods) under any agreement or obligation of any Borrower giving rise to the ability by the counterparty to accelerate any Indebtedness in excess of $250,000. 

9.8 Guarantor Defaults. (i) Any Guaranty of the Secured Obligations ceases for any reason to be in full force and effect;
(ii) Parent fails to comply with Sections 14(d), 14(g), 14(h), or Section 15 of the Guaranty, or Section 6 of the Pledge Agreement, in each case, to which it is a party, (iii) any circumstance described in
Section 9.3, 9.4, 9.5, 9.6 or 9.7 occurs with respect to any Guarantor, (d) the liquidation, winding up, or termination of existence of any Guarantor; or (e) (i) a material impairment in the perfection or priority
of Agent’s Lien in the collateral provided by Guarantor or in the value of such collateral or (ii) a Material Adverse Effect occurs (for purposes of this clause, references to “Borrower” in the definition of “Material
Adverse Effect” shall be understood to refer to Guarantor). 
 SECTION 10. REMEDIES 

10.1 General. Upon the occurrence and during the continuance of any one or more Events of Default, to the extent not
prohibited by applicable law Agent may, and at the direction of the Required Lenders shall, accelerate and demand payment of all or any part of the outstanding Secured Obligations together with the applicable Prepayment Charge and declare them to be
immediately due and payable (provided, that upon the occurrence and during the continuance of an Event of Default of the type described in Section 9.5, all of the outstanding Secured Obligations (including, without limitation, the Prepayment
Charge and the End of Term Charge) shall automatically be accelerated and made due and payable, in each case without any further notice or act). Each Borrower hereby irrevocably appoints Agent as its lawful attorney-in-fact, exercisable following the occurrence and during the continuance of an Event of Default, to: (a) sign such Borrower’s name on any invoice or bill of lading for any account or drafts
against account debtors; (b) demand, collect, sue, and give releases to any account debtor for monies due, settle and adjust disputes and claims about the accounts directly with account debtors, and compromise, prosecute, or defend any action,
claim, case, or proceeding about any Collateral (including filing a claim or voting a claim in any bankruptcy case in Agent’s or such Borrower’s name, as Agent may elect); (c) make, settle, and adjust all claims under such Borrower’s
insurance policies; (d) pay, contest or settle any Lien, charge, encumbrance, security interest, or other claim in or to the Collateral, or any judgment based thereon, or otherwise take any action to terminate or discharge the same;
(e) transfer the Collateral into the name of Agent or a third party as the UCC permits; and (f) receive, open and dispose of mail addressed to such Borrower; (g) endorse such Borrower’s name on any checks, payment instruments, or
other forms of payment or security; and (h) notify all account debtors to pay Agent directly. Each Borrower hereby appoints Agent as its lawful
attorney-in-fact to sign such Borrower’s name on any documents necessary to perfect or continue the perfection of Agent’s security interest in the Collateral
regardless of whether an Event of Default has occurred until all outstanding Secured Obligations have been satisfied in full and the Loan Documents have been terminated. Agent’s foregoing appointment as such Borrower’s attorney in
fact, and all of Agent’s rights and powers, coupled with an interest, are irrevocable until all Secured Obligations have been fully repaid and performed and the Loan Documents have been terminated. Agent may, and at the direction of the
Required Lenders shall, exercise all rights and remedies with respect to the Collateral under the Loan Documents or otherwise available to it under the UCC and other applicable law, including the right to release, hold, sell, lease, liquidate,
collect, realize upon, or otherwise dispose of all or any part of the Collateral and the right to occupy, utilize, process and commingle the Collateral. All Agent’s rights and remedies shall be cumulative and not exclusive. 

  
 27 

 10.2 Collection; Foreclosure. Upon the occurrence and during the continuance
of any Event of Default, Agent may, and at the direction of the Required Lenders shall, at any time or from time to time, apply, collect, liquidate, sell in one or more sales, lease or otherwise dispose of, any or all of the Collateral, in its then
condition or following any commercially reasonable preparation or processing, in such order as Agent may elect. Any such sale may be made either at public or private sale at its place of business or elsewhere. Each Borrower agrees that any such
public or private sale may occur upon ten (10) calendar days’ prior written notice to Borrowers. Agent may require any Borrower to assemble the Collateral and make it available to Agent at a place designated by Agent that is reasonably
convenient to Agent and Borrowers. The proceeds of any sale, disposition or other realization upon all or any part of the Collateral shall be applied by Agent in the following order of priorities: 

First, to Agent and the Lenders in an amount sufficient to pay in full Agent’s and the Lenders’ reasonable and documented out-of-pocket costs and professionals’ and advisors’ fees and expenses as described in Section 11.12; 

Second, to the Lenders in an amount equal to the then unpaid amount of the Secured Obligations (including principal, interest, and the default
rate interest pursuant to Section 2.4), in such order and priority as Agent may choose in its sole discretion; and 
 Finally, after the
full and final payment in Cash of all of the Secured Obligations (other than inchoate obligations), to any creditor holding a junior Lien on the Collateral, or to a Borrower or its representatives or as a court of competent jurisdiction may direct.

 Agent shall be deemed to have acted reasonably in the custody, preservation and disposition of any of the Collateral if it complies with the obligations
of a secured party under the UCC. 
 10.3 No Waiver. Agent shall be under no obligation to marshal any of the Collateral for
the benefit of Borrowers or any other Person, and each Borrower expressly waives all rights, if any, to require Agent to marshal any Collateral. 

10.4 Cumulative Remedies. The rights, powers and remedies of Agent hereunder shall be in addition to all rights, powers and
remedies given by statute or rule of law and are cumulative. The exercise of any one or more of the rights, powers and remedies provided herein shall not be construed as a waiver of or election of remedies with respect to any other rights, powers
and remedies of Agent. 
 SECTION 11. MISCELLANEOUS 

11.1 Severability. Whenever possible, each provision of this Agreement shall be interpreted in such manner as to be effective
and valid under applicable law, but if any provision of this Agreement shall be prohibited by or invalid under such law, such provision shall be ineffective only to the extent and duration of such prohibition or invalidity, without invalidating the
remainder of such provision or the remaining provisions of this Agreement. 
 11.2 Notice. Except as otherwise provided
herein, any notice, demand, request, consent, approval, declaration, service of process or other communication (including the delivery of Financial Statements) that is required, contemplated, or permitted under the Loan Documents or with respect to
the subject matter hereof shall be in writing, and shall be deemed to have been validly served, given, delivered, and received upon the earlier of: (i) the day of transmission by electronic mail or hand delivery or delivery by an overnight
express service or overnight mail delivery service; or (ii) the third calendar day after deposit in the United States of America mails, with proper first class postage prepaid, in each case addressed to the party to be notified as follows: 

 

	 	(a)	 If to Agent: 

HERCULES CAPITAL, INC. 
 Legal
Department 
 Attention: Chief Legal Officer and Bryan Jadot 

400 Hamilton Avenue, Suite 310 

Palo Alto, CA 94301 
 email:
legal@htgc.com; bjadot@htgc.com 
 Telephone: 650-289-3060

  
 28 

	 	(b)	 If to the Lenders: 

HERCULES CAPITAL, INC. 
 Legal
Department 
 Attention: Chief Legal Officer and Bryan Jadot 

400 Hamilton Avenue, Suite 310 

Palo Alto, CA 94301 
 email:
legal@htgc.com; bjadot@htgc.com 
 Telephone: 650-289-3060

  

	 	(c)	 If to Borrowers: 

c/o YUMANITY THERAPEUTICS, INC. 

Attention: Marie Epstein 
 790
Memorial Drive, Suite 2c 
 Cambridge, MA 02139 

email: mepstein@yumanity.com 

Telephone: 617-409-5284 

With a copy to (which shall not constitute notice): 

Goodwin Procter LLP 
 100
Northern Avenue 
 Boston, Massachusetts 02210 

Attn: Mark D. Smith, Esq. 
 Fax:
(617) 801-8835 
 Email: marksmith@goodinlaw.com 

or to such other address as each party may designate for itself by like notice. 

11.3 Entire Agreement; Amendments. 

(a) This Agreement and the other Loan Documents constitute the entire agreement and understanding of the parties hereto in
respect of the subject matter hereof and thereof, and supersede and replace in their entirety any prior proposals, term sheets, non-disclosure or confidentiality agreements, letters, negotiations or other
documents or agreements, whether written or oral, with respect to the subject matter hereof or thereof (including Agent’s revised proposal letter dated November 8, 2019 and the Non-Disclosure
Agreement). 
 (b) Neither this Agreement, any other Loan Document, nor any terms hereof or thereof may be amended,
supplemented or modified except in accordance with the provisions of this Section 11.3(b). The Required Lenders and Borrowers party to the relevant Loan Document may, or, with the written consent of the Required Lenders, the Agent and Borrowers
party to the relevant Loan Document may, from time to time, (i) enter into written amendments, supplements or modifications hereto and to the other Loan Documents for the purpose of adding any provisions to this Agreement or the other Loan
Documents or changing in any manner the rights of the Lenders or of Borrowers hereunder or thereunder or (ii) waive, on 

  
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such terms and conditions as the Required Lenders or the Agent, as the case may be, may specify in such instrument, any of the requirements of this Agreement or the other Loan Documents or any
default or Event of Default and its consequences; provided, however, that no such waiver and no such amendment, supplement or modification shall (A) forgive the principal amount or extend the final scheduled date of maturity of any Loan, extend
the scheduled date of any amortization payment in respect of any Term Loan, reduce the stated rate of any interest or fee payable hereunder) or extend the scheduled date of any payment thereof, in each case without the written consent of each Lender
directly affected thereby; (B) eliminate or reduce the voting rights of any Lender under this Section 11.3(b) without the written consent of such Lender; (C) reduce any percentage specified in the definition of Required Lenders,
consent to the assignment or transfer by a Borrower of any of its rights and obligations under this Agreement and the other Loan Documents, release all or substantially all of the Collateral or release a Borrower from its obligations under the Loan
Documents, in each case without the written consent of all Lenders; or (D) amend, modify or waive any provision of Section 11.18 or Addendum 3 without the written consent of the Agent. Any such waiver and any such amendment, supplement or
modification shall apply equally to each Lender and shall be binding upon each Borrower, the Lenders, Agent and all future holders of the Loans. 

11.4 No Strict Construction. The parties hereto have participated jointly in the negotiation and drafting of this Agreement. In
the event an ambiguity or question of intent or interpretation arises, this Agreement shall be construed as if drafted jointly by the parties hereto and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of the
authorship of any provisions of this Agreement. 
 11.5 No Waiver. The powers conferred upon Agent and the Lenders by this
Agreement are solely to protect its rights hereunder and under the other Loan Documents and its interest in the Collateral and shall not impose any duty upon Agent or the Lenders to exercise any such powers. No omission or delay by Agent or the
Lenders at any time to enforce any right or remedy reserved to it, or to require performance of any of the terms, covenants or provisions hereof by a Borrower at any time designated, shall be a waiver of any such right or remedy to which Agent or
the Lenders is entitled, nor shall it in any way affect the right of Agent or the Lenders to enforce such provisions thereafter. 

11.6 Survival. All agreements, representations and warranties contained in this Agreement and the other Loan Documents or in
any document delivered pursuant hereto or thereto shall be for the benefit of Agent and the Lenders and shall survive the execution and delivery of this Agreement for so long as any Secured Obligations (other than contingent obligations for which no
claim has been asserted) remain outstanding. Sections 6.3, 8.1, 11.14, 11.15 and 11.17 shall survive the termination of this Agreement. 

11.7 Successors and Assigns. The provisions of this Agreement and the other Loan Documents shall inure to the benefit of and be
binding on each Borrower and its permitted assigns (if any). No Borrower shall assign its obligations under this Agreement or any of the other Loan Documents without Agent’s express prior written consent, and any such attempted assignment shall
be void and of no effect. Agent and the Lenders may assign, transfer, or endorse its rights hereunder and under the other Loan Documents without prior notice to Borrowers, and all of such rights shall inure to the benefit of Agent’s and the
Lenders’ successors and assigns; provided that as long as no Event of Default has occurred and is continuing, neither Agent nor any Lender may assign, transfer or endorse its rights hereunder or under the Loan Documents to any party that is a
direct competitor of Borrowers (as reasonably determined by Agent), a vulture hedge fund or any other party designated by Borrower in writing on or prior to the Closing Date, it being acknowledged that in all cases, any transfer to an Affiliate of
any Lender or Agent shall be allowed. Agent will make reasonable efforts to provide Borrower with notice of any assignment, transfer or endorsement at the time it is made or within a reasonable time thereafter other than any transfers to an
Affiliate of any Lender or Agent. Notwithstanding the foregoing, (x) in connection with any assignment by a Lender as a result of a forced divestiture at the request of any regulatory agency, the restrictions set forth herein shall not apply
and Agent and the Lenders may assign, transfer or indorse its rights hereunder and under the other Loan Documents to any Person or party and (y) in connection with a Lender’s own financing or securitization transactions, the restrictions
set forth herein shall not apply and Agent and the Lenders may assign, transfer or indorse its rights hereunder and under the other Loan Documents to any Person or party 

  
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providing such financing or formed to undertake such securitization transaction and any transferee of such Person or party upon the occurrence of a default, event of default or similar occurrence
with respect to such financing or securitization transaction; provided that no such sale, transfer, pledge or assignment under this clause (y) shall release such Lender from any of its obligations hereunder or substitute any such Person or
party for such Lender as a party hereto until Agent shall have received and accepted an effective assignment agreement from such Person or party in form satisfactory to Agent executed, delivered and fully completed by the applicable parties thereto,
and shall have received such other information regarding such assignee as Agent reasonably shall require. The Agent, acting solely for this purpose as an agent of Borrowers, shall maintain at one of its offices in the United States a register for
the recordation of the names and addresses of the Lender(s), and the Term Commitments of, and principal amounts (and stated interest) of the Loans owing to, each Lender pursuant to the terms hereof from time to time (the “Register”). The
entries in the Register shall be conclusive absent manifest error, and Borrowers, the Agent and the Lender(s) shall treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder for all purposes of this
Agreement. The Register shall be available for inspection by Borrowers and any Lender, at any reasonable time and from time to time upon reasonable prior notice. 

11.8 Participations. Each Lender that sells a participation shall, acting solely for this purpose as a non-fiduciary agent of Borrowers, maintain a register on which it enters the name and address of each participant and the principal amounts (and stated interest) of each participant’s interest in the Loans or
other obligations under the Loan Documents (the “Participant Register”); provided that no Lender shall have any obligation to disclose all or any portion of the Participant Register (including the identity of any participant or any
information relating to a participant’s interest in any commitments, loans, its other obligations under any Loan Document) to any Person except to the extent that such disclosure is necessary to establish that such commitment, loan, letter of
credit or other obligation is in registered form under Section 5f.103-1(c) of the United States Treasury Regulations. The entries in the Participant Register shall be conclusive absent manifest error, and
such Lender shall treat each Person whose name is recorded in the Participant Register as the owner of such participation for all purposes of this Agreement notwithstanding any notice to the contrary. For the avoidance of doubt, the Agent (in its
capacity as Agent) shall have no responsibility for maintaining a Participant Register. Each Borrower agrees that each participant shall be entitled to the benefits of the provisions in Addendum 1 attached hereto (subject to the requirements and
limitations therein, including the requirements under Section 7 of Addendum 1 attached hereto (it being understood that the documentation required under Section 7 of Addendum 1 attached hereto shall be delivered to the participating
Lender)) to the same extent as if it were a Lender and had acquired its interest by assignment pursuant to Section 11.7; provided that such participant shall not be entitled to receive any greater payment under Addendum 1 attached hereto, with
respect to any participation, than its participating Lender would have been entitled to receive, except to the extent such entitlement to receive a greater payment results from a change in law that occurs after the participant acquired the
applicable participation. 
 11.9 Governing Law. This Agreement and the other Loan Documents have been negotiated and
delivered to Agent and the Lenders in the State of California, and shall have been accepted by Agent and the Lenders in the State of California. Payment to Agent and the Lenders by Borrowers of the Secured Obligations is due in the State of
California. This Agreement and the other Loan Documents shall be governed by, and construed and enforced in accordance with, the laws of the State of California, excluding conflict of laws principles that would cause the application of laws of any
other jurisdiction. 
 11.10 Consent to Jurisdiction and Venue. All judicial proceedings (to the extent that the reference
requirement of Section 11.10 is not applicable) arising in or under or related to this Agreement or any of the other Loan Documents may be brought in any state or federal court located in the State of California. By execution and delivery of
this Agreement, each party hereto generally and unconditionally: (a) consents to nonexclusive personal jurisdiction in Santa Clara County, State of California; (b) waives any objection as to jurisdiction or venue in Santa Clara County,
State of California; (c) agrees not to assert any defense based on lack of jurisdiction or venue in the aforesaid courts; and (d) irrevocably agrees to be bound by any judgment rendered thereby in connection with this Agreement or the
other Loan Documents. Service of process on any party hereto in any action arising out of or relating to this Agreement shall be effective if given in accordance with the requirements for notice set forth in Section 11.2, and shall be deemed
effective and received as set forth in Section 11.2. Nothing herein shall affect the right to serve process in any other manner permitted by law or shall limit the right of either party to bring proceedings in the courts of any other
jurisdiction. 

  
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 11.11 Mutual Waiver of Jury Trial / Judicial Reference. 

(a) Because disputes arising in connection with complex financial transactions are most quickly and economically resolved by an
experienced and expert Person and the parties wish applicable state and federal laws to apply (rather than arbitration rules), the parties desire that their disputes be resolved by a judge applying such applicable laws. EACH OF BORROWERS, AGENT AND
THE LENDERS SPECIFICALLY WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY OF ANY CAUSE OF ACTION, CLAIM, CROSS-CLAIM, COUNTERCLAIM, THIRD PARTY CLAIM OR ANY OTHER CLAIM (COLLECTIVELY, “CLAIMS”) ASSERTED BY A BORROWER AGAINST AGENT, THE
LENDERS OR THEIR RESPECTIVE ASSIGNEE OR BY AGENT, THE LENDERS OR THEIR RESPECTIVE ASSIGNEE AGAINST BORROWERS. This waiver extends to all such Claims, including Claims that involve Persons other than Agent, Borrowers and the Lenders; Claims that
arise out of or are in any way connected to the relationship among Borrowers, Agent and the Lenders; and any Claims for damages, breach of contract, tort, specific performance, or any equitable or legal relief of any kind, arising out of this
Agreement or any other Loan Document (other than to the extent arising from Agent’s or any Lender’s gross negligence or willful misconduct). 

(b) If the waiver of jury trial set forth in Section 11.10(a) is ineffective or unenforceable, the parties agree that all
Claims shall be resolved by reference to a private judge sitting without a jury, pursuant to Code of Civil Procedure Section 638, before a mutually acceptable referee or, if the parties cannot agree, a referee selected by the Presiding Judge of
the Santa Clara County, California. Such proceeding shall be conducted in Santa Clara County, California, with California rules of evidence and discovery applicable to such proceeding. 

(c) In the event Claims are to be resolved by judicial reference, either party may seek from a court identified in
Section 11.11, any prejudgment order, writ or other relief and have such prejudgment order, writ or other relief enforced to the fullest extent permitted by law notwithstanding that all Claims are otherwise subject to resolution by judicial
reference. 
 11.12 Professional Fees. Borrowers promise to pay Agent’s and the Lenders’ fees and reasonable and
documented out-of-pocket expenses necessary to finalize the loan documentation, including but not limited to reasonable and documented out-of-pocket attorneys’ fees, UCC searches, filing costs, and other miscellaneous expenses. In addition, Borrowers promise to pay any and all reasonable attorneys’ and other professionals’
fees and expenses incurred by Agent and the Lenders after the Closing Date in connection with or related to: (a) the Loan; (b) the administration, collection, or enforcement of the Loan; (c) the amendment or modification of the Loan
Documents; (d) any waiver, consent, release, or termination under the Loan Documents; (e) the protection, preservation, audit, field exam, sale, lease, liquidation, or disposition of Collateral or the exercise of remedies with respect to
the Collateral; (f) any legal, litigation, administrative, arbitration, or out of court proceeding in connection with or related to Borrowers or the Collateral, and any appeal or review thereof; and (g) any bankruptcy, restructuring,
reorganization, assignment for the benefit of creditors, workout, foreclosure, or other action related to Borrowers, the Collateral, the Loan Documents, including representing Agent or the Lenders in any adversary proceeding or contested matter
commenced or continued by or on behalf of a Borrower’s estate, and any appeal or review thereof. 
 11.13
Confidentiality. Agent and the Lenders acknowledge that certain items of Collateral and information provided to Agent and the Lenders by Borrowers are confidential and proprietary information of Borrowers, if and to the extent such information
either (x) is marked as confidential by Borrowers at the time of disclosure, or (y) should reasonably be understood to be confidential (the “Confidential Information”). Accordingly, Agent and the Lenders agree that any
Confidential Information it may obtain in the course of acquiring, administering, or perfecting Agent’s security interest in the Collateral shall not be 

  
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disclosed to any other Person or entity in any manner whatsoever, in whole or in part, without the prior written consent of a Borrower, except that Agent and the Lenders may disclose any such
information: (a) to its Affiliates and its partners, investors, lenders, directors, officers, employees, agents, advisors, counsel, accountants, counsel, representative and other professional advisors if Agent or the Lenders in their reasonable
good faith discretion determines that any such party should have access to such information in connection with such party’s responsibilities in connection with the Loan or this Agreement and, provided that such recipient of such Confidential
Information either (i) agrees to be bound by the confidentiality provisions of this paragraph or (ii) is otherwise subject to confidentiality restrictions that reasonably protect against the disclosure of Confidential Information which are
no less restrictive than the terms of this Section 11.13; (b) if such information is generally available to the public or to the extent such information becomes publicly available other than as a result of a breach of this Section or
becomes available to Agent or any Lender, or any of their respective Affiliates on a non-confidential basis from a source other than a Borrower; (c) if required in any report, statement or testimony to be
submitted to any governmental authority having or claiming to have jurisdiction over Agent or the Lenders and any rating agency; (d) if required or appropriate in response to any summons or subpoena or in connection with any litigation, to the
extent permitted or deemed advisable by Agent’s or the Lenders’ counsel; (e) to comply with any legal requirement or law applicable to Agent or the Lenders or demanded by any governmental authority; (f) to the extent reasonably
necessary in connection with the exercise of, or preparing to exercise, or the enforcement of, or preparing to enforce, any right or remedy under any Loan Document (including Agent’s sale, lease, or other disposition of Collateral after the
occurrence of an Event of Default), or any action or proceeding relating to any Loan Document; (g) to any participant or assignee of Agent or the Lenders or any prospective participant or assignee, provided, that such participant or assignee or
prospective participant or assignee agrees in writing to be bound by confidentiality restrictions similar to those under this Section 11.13; (h) otherwise to the extent consisting of general portfolio information that does not identify a
Borrower; or (i) otherwise with the prior written consent of a Borrower; provided, that any disclosure made in violation of this Agreement shall not affect the obligations of any Borrower or any of its Affiliates or any guarantor under this
Agreement or the other Loan Documents. Agent’s and the Lenders’ obligations under this Section 11.13 shall supersede all of their respective obligations under the Non-Disclosure Agreement. 

11.14 Assignment of Rights. Each Borrower acknowledges and understands that Agent or the Lenders may, subject to
Section 11.7, sell and assign all or part of its interest hereunder and under the Loan Documents to any Person or entity (an “Assignee”). After such assignment the term “Agent” or “Lender” as used in the Loan
Documents shall mean and include such Assignee, and such Assignee shall be vested with all rights, powers and remedies of Agent and the Lenders hereunder with respect to the interest so assigned; but with respect to any such interest not so
transferred, Agent and the Lenders shall retain all rights, powers and remedies hereby given. No such assignment by Agent or the Lenders shall relieve any Borrower of any of its obligations hereunder. the Lenders agrees that in the event of any
transfer by it of the promissory note(s) (if any), it will endorse thereon a notation as to the portion of the principal of the promissory note(s), which shall have been paid at the time of such transfer and as to the date to which interest shall
have been last paid thereon. 
 11.15 Revival of Secured Obligations. This Agreement and the Loan Documents shall remain in
full force and effect and continue to be effective if any petition is filed by or against a Borrower for liquidation or reorganization, if a Borrower becomes insolvent or makes an assignment for the benefit of creditors, if a receiver or trustee is
appointed for all or any significant part of a Borrower’s assets, or if any payment or transfer of Collateral is recovered from Agent or the Lenders. The Loan Documents and the Secured Obligations and Collateral security shall continue to be
effective, or shall be revived or reinstated, as the case may be, if at any time payment and performance of the Secured Obligations or any transfer of Collateral to Agent, or any part thereof is rescinded, avoided or avoidable, reduced in amount, or
must otherwise be restored or returned by, or is recovered from, Agent, the Lenders or by any obligee of the Secured Obligations, whether as a “voidable preference,” “fraudulent conveyance,” or otherwise, all as though such
payment, performance, or transfer of Collateral had not been made. In the event that any payment, or any part thereof, is rescinded, reduced, avoided, avoidable, restored, returned, or recovered, the Loan Documents and the Secured Obligations shall
be deemed, without any further action or documentation, to have been revived and reinstated until the Secured Obligations (other than contingent obligations for which no claim has been asserted) are fully satisfied. 

  
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 11.16 Counterparts. This Agreement and any amendments, waivers, consents or
supplements hereto may be executed in any number of counterparts, and by different parties hereto in separate counterparts, each of which when so delivered shall be deemed an original, but all of which counterparts shall constitute but one and the
same instrument. Delivery of an executed counterpart signature page of this Agreement by telecopier or other electronic means shall be effective as delivery of a manually executed counterpart of this Agreement. 

11.17 No Third Party Beneficiaries. No provisions of the Loan Documents are intended, nor will be interpreted, to provide or
create any third-party beneficiary rights or any other rights of any kind in any Person other than Agent, the Lenders and Borrowers unless specifically provided otherwise herein, and, except as otherwise so provided, all provisions of the Loan
Documents will be personal and solely among Agent, the Lenders and Borrowers. 
 11.18 Agency. Agent and each Lender hereby
agree to the terms and conditions set forth on Addendum 3 attached hereto. Each Borrower acknowledges and agrees to the terms and conditions set forth on Addendum 3 attached hereto. 

11.19 Publicity. None of the parties hereto nor any of its respective member businesses and Affiliates shall, without the other
parties’ prior written consent, publicize or use (a) the other party’s name (including a brief description of the relationship among the parties hereto), logo or hyperlink to such other parties’ web site, separately or together,
in written and oral presentations, advertising, promotional and marketing materials, client lists, public relations materials or on its web site (together, the “Publicity Materials”); (b) the names of officers of such other parties in the
Publicity Materials; and (c) such other parties’ name, trademarks, servicemarks in any news or press release concerning such party; provided however, notwithstanding anything to the contrary herein, no such consent shall be required
(i) to the extent necessary to comply with the requests of any regulators, legal requirements or laws applicable to such party, pursuant to any listing agreement with any national securities exchange (so long as such party provides prior notice
to the other party hereto to the extent reasonably practicable) and (ii) to comply with Section 11.13. 
 11.20
Multiple Borrowers. Each Borrower hereby agrees to the terms and conditions set forth on Addendum 4 attached hereto. 
 11.21
Tax Treatment. Each party hereto hereby acknowledges and agrees that the Term Loan Advance made on the Closing Date are part of an investment unit within the meaning of Section 1273(c)(2) of the Internal Revenue Code of 1986, as amended, which
includes the Warrant. Each party hereto agrees to use the foregoing issue price and purchase price, as applicable, for all income financial accounting and regulatory purposes with respect to this transaction. Notwithstanding anything to the contrary
contained herein, each party hereto hereby further acknowledges and agrees that for United States federal, state and local income tax purposes the aggregate “issue price” of the Loans made on the Closing Date under Section 1273(b) of
the Internal Revenue Code of 1986, as amended, shall equal $14,890,811.00 and the purchase price and fair market value of the Warrant shall equal $109,189.00. Each party hereto agrees to use the issue price and fair market value, as applicable, as
determined in accordance with the foregoing, for all income financial accounting and regulatory purposes with respect to this transaction. 

(SIGNATURES TO FOLLOW) 

  
 34 

 [SIGNATURE PAGE TO LOAN AND SECURITY AGREEMENT] 

IN WITNESS WHEREOF, Borrowers, Agent and the Lenders have duly executed and delivered this Loan and Security Agreement as of the day and year
first above written. 
  

			
	BORROWER:
	
	YUMANITY THERAPEUTICS, INC.
		
	Signature:	 	/s/ Richard Peters
		
	Print Name:	 	Richard Peters
		
	Title:	 	Chief Executive Officer

 [SIGNATURE PAGE TO LOAN AND SECURITY AGREEMENT] 

Accepted in Palo Alto, California: 
  

			
	AGENT:	 	
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	 /s/ Jennifer Choe

		
	Print Name:	 	Jennifer Choe
		
	Title:	 	Assistant General Counsel
		
	LENDERS:	 	
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	 /s/ Jennifer Choe

		
	Print Name:	 	Jennifer Choe
		
	Title:	 	Assistant General Counsel

 Table of Addenda, Exhibits and Schedules 

 

			
	Addendum 1:	  	Taxes; Increased Costs
		
	Addendum 2:	  	SBA Provisions
		
	Addendum 3:	  	Agent and Lender Terms
		
	Addendum 4:	  	Multiple Borrower Terms
		
	Exhibit A:	  	Advance Request
		  	Attachment to Advance Request
		
	Exhibit B:	  	Name, Locations, and Other Information for Borrowers
		
	Exhibit C:	  	Borrowers’ Patents, Trademarks, Copyrights and Licenses
		
	Exhibit D:	  	Borrowers’ Deposit Accounts and Investment Accounts
		
	Exhibit E:	  	Compliance Certificate
		
	Exhibit F:	  	Joinder Agreement
		
	Exhibit G:	  	ACH Debit Authorization Agreement
		
	Exhibit H-1:	  	Form of U.S. Tax Compliance Certificate (For Foreign Lenders That Are Not Partnerships For U.S. Federal Income Tax Purposes)
		
	Exhibit H-2:	  	Form of U.S. Tax Compliance Certificate (For Foreign Participants That Are Not Partnerships For U.S. Federal Income Tax Purposes)
		
	Exhibit H-3:	  	Form of U.S. Tax Compliance Certificate (For Foreign Participants That Are Partnerships For U.S. Federal Income Tax Purposes)
		
	Exhibit H-4:	  	Form of U.S. Tax Compliance Certificate (For Foreign Lenders That Are Partnerships For U.S. Federal Income Tax Purposes)
		
	Schedule 1.1	  	Commitments
	Schedule 1	  	Subsidiaries
	Schedule 1A	  	Existing Permitted Indebtedness
	Schedule 1B	  	Existing Permitted Investments
	Schedule 1C	  	Existing Permitted Liens
	Schedule 5.3	  	Consents, Etc.
	Schedule 5.8	  	Tax Matters
	Schedule 5.9	  	Intellectual Property Claims
	Schedule 5.10	  	Intellectual Property
	Schedule 5.11	  	Borrower Products
	Schedule 5.14	  	Capitalization

 ADDENDUM 1 to LOAN AND SECURITY AGREEMENT 

TAXES; INCREASED COSTS 
  

	1.	 Defined Terms. For purposes of this Addendum 1: 

 

	 	a.	 “Connection Income Taxes” means Other Connection Taxes that are imposed on or measured by net
income (however denominated) or that are franchise Taxes or branch profits Taxes. 

  

	 	b.	 “Excluded Taxes” means any of the following Taxes imposed on or with respect to a Recipient or
required to be withheld or deducted from a payment to a Recipient, (i) Taxes imposed on or measured by net income (however denominated), franchise Taxes, and branch profits Taxes, in each case, (A) imposed as a result of such Recipient
being organized under the laws of, or having its principal office or, in the case of any Lender, its applicable lending office located in, the jurisdiction imposing such Tax (or any political subdivision thereof) or (B) that are Other
Connection Taxes, (ii) in the case of a Lender, U.S. federal withholding Taxes imposed on amounts payable to or for the account of such Lender with respect to an applicable interest in a Loan or Term Commitment pursuant to a law in effect on
the date on which (A) such Lender acquires such interest in the Loan or Term Commitment or (B) such Lender changes its lending office, except in each case to the extent that, pursuant to Section 2 or Section 4 of this Addendum 1,
amounts with respect to such Taxes were payable either to such Lender’s assignor immediately before such Lender became a party hereto or to such Lender immediately before it changed its lending office, (iii) Taxes attributable to such
Recipient’s failure to comply with Section 7 of this Addendum 1 and (iv) any withholding Taxes imposed under FATCA. 

  

	 	c.	 “FATCA” means Sections 1471 through 1474 of the Code, as of the date of this Agreement (or any
amended or successor version that is substantively comparable and not materially more onerous to comply with), any current or future regulations or official interpretations thereof, any agreements entered into pursuant to Section 1471(b)(1) of
the Code, and any fiscal or regulatory legislation, rules or practices adopted pursuant to any intergovernmental agreement, treaty or convention among governmental authorities and implementing such Sections of the Code. 

 

	 	d.	 “Foreign Lender” means a Lender that is not a U.S. Person. 

 

	 	e.	 “Indemnified Taxes” means (i) Taxes, other than Excluded Taxes, imposed on or with
respect to any payment made by or on account of any obligation of the Borrowers under any Loan Document and (ii) to the extent not otherwise described in clause (i), Other Taxes. 

 

	 	f.	 “Other Connection Taxes” means, with respect to any Recipient, Taxes imposed as a result of a
present or former connection between such Recipient and the jurisdiction imposing such Tax (other than connections arising from such Recipient having executed, delivered, become a party to, performed its obligations under, received payments under,
received or perfected a security interest under, engaged in any other transaction pursuant to or enforced any Loan Document, or sold or assigned an interest in any Loan or Loan Document). 

 

	 	g.	 “Other Taxes” means all present or future stamp, court or documentary, intangible, recording,
filing or similar Taxes that arise from any payment made under, from the execution, delivery, performance, enforcement or registration of, from the receipt or perfection of a security interest under, or otherwise with respect to, any Loan Document,
except any such Taxes that are Other Connection Taxes imposed with respect to an assignment. 

  

	 	h.	 “Recipient” means the Agent or any Lender, as applicable. 

 

	 	i.	 “Withholding Agent” means the Borrowers and the Agent. 

	2.	 Payments Free of Taxes. Any and all payments by or on account of any obligation of the Borrower under
any Loan Document shall be made without deduction or withholding for any Taxes, except as required by applicable law. If any applicable law (as determined in the good faith discretion of an applicable Withholding Agent) requires the deduction or
withholding of any Tax from any such payment by a Withholding Agent, then the applicable Withholding Agent shall be entitled to make such deduction or withholding and shall timely pay the full amount deducted or withheld to the relevant governmental
authority in accordance with applicable law and, if such Tax is an Indemnified Tax, then the sum payable by the Borrowers shall be increased as necessary so that after such deduction or withholding has been made (including such deductions and
withholdings applicable to additional sums payable under this Section 2 or Section 4 of this Addendum 1) the applicable Recipient receives an amount equal to the sum it would have received had no such deduction or withholding been made.

  

	3.	 Payment of Other Taxes by Borrowers. The Borrowers shall timely pay to the relevant governmental
authority in accordance with applicable law, or at the option of the Agent timely reimburse it for the payment of, any Other Taxes. 

  

	4.	 Indemnification by Borrowers. The Borrowers shall indemnify each Recipient, within 10 days after demand
therefor, for the full amount of any Indemnified Taxes (including Indemnified Taxes imposed or asserted on or attributable to amounts payable under Section 2 of this Addendum 1 or this Section 4) payable or paid by such Recipient or
required to be withheld or deducted from a payment to such Recipient and any reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes were correctly or legally imposed or asserted by the relevant
governmental authority. A certificate as to the amount of such payment or liability delivered to the Borrowers by a Lender (with a copy to the Agent), or by the Agent on its own behalf or on behalf of a Lender, shall be conclusive absent manifest
error. In addition, the Borrowers agree to pay, and to save the Agent and any Lender harmless from, any and all liabilities with respect to, or resulting from any delay in paying, any and all excise, sales or other similar taxes (excluding taxes
imposed on or measured by the net income of the Agent or such Lender) that may be payable or determined to be payable with respect to any of the Collateral or this Agreement. 

 

	5.	 Indemnification by the Lenders. Each Lender shall severally indemnify the Agent, within 10 days after
demand therefor, for (a) any Indemnified Taxes attributable to such Lender (but only to the extent that the Borrowers have not already indemnified the Agent for such Indemnified Taxes and without limiting the obligation of the Borrowers to do
so), (b) any Taxes attributable to such Lender’s failure to comply with the provisions of Section 11.8 of the Agreement relating to the maintenance of a Participant Register and (c) any Excluded Taxes attributable to such Lender, in
each case, that are payable or paid by the Agent in connection with any Loan Document, and any reasonable expenses arising therefrom or with respect thereto, whether or not such Taxes were correctly or legally imposed or asserted by the relevant
governmental authority. A certificate as to the amount of such payment or liability delivered to any Lender by the Agent shall be conclusive absent manifest error. Each Lender hereby authorizes the Agent to set off and apply any and all amounts at
any time owing to such Lender under any Loan Document or otherwise payable by the Agent to the Lender from any other source against any amount due to the Agent under this Section 5. 

 

	6.	 Evidence of Payments. As soon as practicable after any payment of Taxes by the Borrowers to a
governmental authority pursuant to the provisions of this Addendum 1, the Borrowers shall deliver to the Agent the original or a certified copy of a receipt issued by such governmental authority evidencing such payment, a copy of the return
reporting such payment or other evidence of such payment reasonably satisfactory to the Agent. 

  

	7.	 Status of Lenders. 

 

	 	a.	 Any Lender that is entitled to an exemption from or reduction of withholding Tax with respect to payments made
under any Loan Document shall deliver to the Borrowers and the Agent, at the time or times reasonably requested by the Borrowers or the Agent, such properly completed and executed documentation reasonably requested by the Borrowers or the Agent as
will permit such payments to be made without withholding or at a reduced rate of withholding. In addition, any Lender, if reasonably requested by the Borrowers or the Agent, shall deliver such other documentation prescribed by applicable law or
reasonably requested by the Borrowers or the Agent as will enable the Borrowers or the Agent to determine whether or not such Lender is subject to backup withholding or information 

	 	
reporting requirements. Notwithstanding anything to the contrary in the preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set
forth in Sections 7(b)(i), 7(b)(ii) and 7(b)(iv) of this Addendum 1) shall not be required if in the Lender’s reasonable judgment such completion, execution or submission would subject such Lender to any material unreimbursed cost or expense or
would materially prejudice the legal or commercial position of such Lender. 

  

	 	b.	 Without limiting the generality of the foregoing, in the event that a Borrower is U.S. Person,

  

	 	i.	 any Lender that is a U.S. Person shall deliver to the Borrowers and the Agent on or prior to the date on which
such Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrowers or the Agent), executed copies of IRS Form W-9 certifying that such Lender is
exempt from U.S. federal backup withholding tax; 

  

	 	ii.	 any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrowers and the Agent
(in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrowers or the
Agent), whichever of the following is applicable: 

  

	 	A.	 in the case of a Foreign Lender claiming the benefits of an income tax treaty to which the United States is a
party (x) with respect to payments of interest under any Loan Document, executed copies of IRS Form W-8BEN or IRS Form
W-8BEN-E establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the “interest” article of such tax treaty and (y) with
respect to any other applicable payments under any Loan Document, IRS Form W-8BEN or IRS Form W-8BEN-E establishing an exemption
from, or reduction of, U.S. federal withholding Tax pursuant to the “business profits” or “other income” article of such tax treaty; 

  

	 	B.	 executed copies of IRS Form W-8ECI; 

 

	 	C.	 in the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under
Section 881(c) of the Code, (x) a certificate substantially in the form of Exhibit H-1 to the effect that such Foreign Lender is not a “bank” within the meaning of Section 881(c)(3)(A)
of the Code, a “10 percent shareholder” of the Borrowers within the meaning of Section 871(h)(3)(B) of the Code, or a “controlled foreign corporation” related to the Borrowers as described in Section 881(c)(3)(C)
of the Code (a “U.S. Tax Compliance Certificate”) and (y) executed copies of IRS Form W-8BEN or IRS Form
W-8BEN-E; or 

  

	 	D.	 to the extent a Foreign Lender is not the beneficial owner, executed copies of IRS Form W-8IMY, accompanied by IRS Form W-8ECI, IRS Form W-8BEN, IRS Form
W-8BEN-E, a U.S. Tax Compliance Certificate substantially in the form of Exhibit H-2 or Exhibit
H-3, IRS Form W-9, and/or other certification documents from each beneficial owner, as applicable; provided that if the Foreign Lender is a partnership and one or more
direct or indirect partners of such Foreign Lender are claiming the portfolio interest exemption, such Foreign Lender may provide a U.S. Tax Compliance Certificate substantially in the form of Exhibit H-4 on
behalf of each such direct and indirect partner; 

  

	 	iii.	 any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrowers and the Agent
(in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrowers or the
Agent), executed 

	 	
copies of any other form prescribed by applicable law as a basis for claiming exemption from or a reduction in U.S. federal withholding Tax, duly completed, together with such supplementary
documentation as may be prescribed by applicable law to permit the Borrowers or the Agent to determine the withholding or deduction required to be made; and 

  

	 	iv.	 if a payment made to a Lender under any Loan Document would be subject to U.S. federal withholding Tax imposed
by FATCA if such Lender were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section 1471(b) or 1472(b) of the Code, as applicable), such Lender shall deliver to the Borrowers and the Agent at
the time or times prescribed by law and at such time or times reasonably requested by the Borrowers or the Agent such documentation prescribed by applicable law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such
additional documentation reasonably requested by the Borrowers or the Agent as may be necessary for the Borrowers and the Agent to comply with their obligations under FATCA and to determine that such Lender has complied with such Lender’s
obligations under FATCA or to determine the amount, if any, to deduct and withhold from such payment. Solely for purposes of this clause (iv), “FATCA” shall include any amendments made to FATCA after the date of this Agreement.

  

	 	c.	 Each Lender agrees that if any form or certification it previously delivered expires or becomes obsolete or
inaccurate in any respect, it shall update such form or certification or promptly notify the Borrowers and the Agent in writing of its legal inability to do so. 

 

	8.	 Treatment of Certain Refunds. If any party determines, in its sole discretion exercised in good faith,
that it has received a refund of any Taxes as to which it has been indemnified pursuant to the provisions of this Addendum 1 (including by the payment of additional amounts pursuant to the provisions of this Addendum 1), it shall pay to the
indemnifying party an amount equal to such refund (but only to the extent of indemnity payments made under the provisions of this Addendum 1 with respect to the Taxes giving rise to such refund), net of all reasonable and documented out-of-pocket expenses (including Taxes) of such indemnified party and without interest (other than any interest paid by the relevant governmental authority with respect to
such refund). Such indemnifying party, upon the request of such indemnified party, shall repay to such indemnified party the amount paid over pursuant to this Section 8 (plus any penalties, interest or other charges imposed by the relevant
governmental authority) in the event that such indemnified party is required to repay such refund to such governmental authority. Notwithstanding anything to the contrary in this Section 8, in no event will the indemnified party be required to
pay any amount to an indemnifying party pursuant to this Section 8 the payment of which would place the indemnified party in a less favorable net after-Tax position than the indemnified party would have
been in if the Tax subject to indemnification and giving rise to such refund had not been deducted, withheld or otherwise imposed and the indemnification payments or additional amounts with respect to such Tax had never been paid. This
Section 8 shall not be construed to require any indemnified party to make available its Tax returns (or any other information relating to its Taxes that it deems confidential) to the indemnifying party or any other Person.

  

	9.	 Increased Costs. If any change in applicable law shall subject any Recipient to any Taxes (other than
(A) Indemnified Taxes, (B) Taxes described in clauses (ii) through (iv) of the definition of Excluded Taxes and (C) Connection Income Taxes) on its loans, loan principal, commitments, or other obligations, or its deposits,
reserves, other liabilities or capital attributable thereto, and the result shall be to increase the cost to such Recipient of making, converting to, continuing or maintaining any Term Loan or of maintaining its obligation to make any such Loan, or
to reduce the amount of any sum received or receivable by such Recipient (whether of principal, interest or any other amount), then, upon the request of such Recipient, the Borrowers will pay to such Recipient such additional amount or amounts as
will compensate such Recipient for such additional costs incurred or reduction suffered. 

  

	10.	 Survival. Each party’s obligations under the provisions of this Addendum 1 shall survive the
resignation or replacement of the Agent or any assignment of rights by, or the replacement of, a Lender, the termination of the Term Commitments and the repayment, satisfaction or discharge of all obligations under any Loan Document.

 ADDENDUM 2 to LOAN AND SECURITY AGREEMENT 

SBIC 
 (a)
Borrowers’ Business. For purposes of this Addendum 2, Borrowers shall be deemed to include its “affiliates” as defined in Title 13 Code of Federal Regulations Section 121.103. each Borrower represents and
warrants to Agent and the Lenders as of each SBA Funding Date and covenants to Agent and the Lenders for a period of one year after each SBA Funding Date or for such longer period as set forth below with respect to subsections 2, 3, 4, 5, 6 and 7
below, as follows: 
  

	 	1.	 Size Status. Borrowers’ primary NAICS code is 541714 and has less than 750 employees in the aggregate;

  

	 	2.	 No Relender. Borrowers’ primary business activity does not involve, directly or indirectly, providing
funds to others, purchasing debt obligations, factoring, or long-term leasing of equipment with no provision for maintenance or repair; 

  

	 	3.	 No Passive Business. Borrowers are engaged in a regular and continuous business operation (excluding the mere
receipt of payments such as dividends, rents, lease payments, or royalties). Borrowers’ employees are carrying on the majority of day to day operations. Borrowers will not pass through substantially all of the proceeds of the Loan to another
entity; 

  

	 	4.	 No Real Estate Business. Borrowers are not classified under North American Industry Classification System
(NAICS) codes 531110 (lessors of residential buildings and dwellings), 531120 (lessors of nonresidential buildings except miniwarehouses), 531190 (lessors of other real estate property), 237210 (land subdivision), or 236117 (new housing for-sale builders). Borrowers are not classified under NAICS codes 236118 (residential remodelers), 236210 (industrial building construction), or 236220 (commercial and institutional building construction), if
Borrowers are primarily engaged in construction or renovation of properties on its own account rather than as a hired contractor. Borrowers are not classified under NAICS codes 531210 (offices of real estate agents and brokers), 531311 (residential
property managers), 531312 (nonresidential property managers), 531320 (offices of real estate appraisers), or 531390 (other activities related to real estate), unless it derives at least 80 percent of its revenue from non-Affiliate sources. The proceeds of the Loan will not be used to acquire or refinance real property unless Borrowers (x) are acquiring an existing property and will use at least 51 percent of the usable
square footage for its business purposes; (y) are building or renovating a building and will use at least 67 percent of the usable square footage for its business purposes; or (z) occupy the subject property and uses at least
67 percent of the usable square footage for its business purposes. 

  

	 	5.	 No Project Finance. Borrowers’ assets are not intended to be reduced or consumed, generally without
replacement, as the life of its business progresses, and the nature of Borrowers’ business does not require that a stream of cash payments be made to the business’s financing sources, on a basis associated with the continuing sale of
assets (e.g., real estate development projects and oil and gas wells). The primary purpose of the Loan is not to fund production of a single item or defined limited number of items, generally over a defined production period, where such production
will constitute the majority of the activities of Borrowers (e.g., motion pictures and electric generating plants). 

	 	6.	 No Farm Land Purchases. Borrowers will not use the proceeds of the Loan to acquire farm land which is or is
intended to be used for agricultural or forestry purposes, such as the production of food, fiber, or wood, or is so taxed or zoned. 

  

	 	7.	 No Foreign Investment. The proceeds of the Loan will not be used substantially for a foreign operation.
Borrowers will not have, on or within one year after each SBA Funding Date and each other Loan provided by a Lender that is an SBIC more than 49 percent of its employees or tangible assets located outside the United States of America. The
representation in this subsection (7) is made only as of the SBA Funding Date for any Loan advanced hereunder. 

(b) Small Business Administration Documentation. Agent and the Lenders acknowledge that Borrowers completed,
executed and delivered to Agent prior to each SBA Funding Date SBA Forms 480, 652 and 1031 (Parts A and B) together with a business plan showing Borrowers’ financial projections (including balance sheets and income and cash flows
statements) for the period described therein and a written statement (whether included in the purchase agreement or pursuant to a separate statement) from Agent regarding its intended use of proceeds from the sale of securities to the Lenders (the
“Use of Proceeds Statement”). Borrowers represent and warrant to Agent and the Lenders that the information regarding Borrowers and their respective affiliates set forth in the SBA Form 480, Form 652 and Form 1031 and
the Use of Proceeds Statement delivered as of each SBA Funding Date is accurate and complete. 
 (c)
Inspection. The following covenants contained in this Section (c) are intended to supplement and not to restrict the related provisions of the Loan Documents. Subject to the preceding sentence, Borrowers will permit, for
so long as the Lenders holds any debt or equity securities of Borrowers, Agent, the Lenders or their representative, at Agent’s or the Lenders’ expense, and examiners of the SBA to visit and inspect the properties and assets of Borrowers,
to examine its books of account and records, and to discuss Borrowers’ affairs, finances and accounts with each Borrower’s officers, senior management and accountants, all at such reasonable times as may be requested by Agent or the
Lenders or the SBA. 
 (d) Annual Assessment. Upon request of Agent or Lender, promptly after the end of each
calendar year (but in any event prior to February 28 of each year) and at such other times as may be reasonably requested by Agent or the Lenders, Borrowers will deliver to Agent a written assessment of the economic impact of the Lenders’
investment in Borrowers, specifying the full-time equivalent jobs created or retained in connection with the investment, the impact of the investment on the businesses of Borrowers in terms of expanded revenue and taxes, other economic benefits
resulting from the investment (such as technology development or commercialization, minority business development, or expansion of exports) and such other information as may be required regarding Borrowers in connection with the filing of the
Lenders’ SBA Form 468. The Lenders will assist Borrowers with preparing such assessment. In addition to any other rights granted hereunder, Borrowers will grant Agent and the Lenders and the SBA access (during regular business hours
and upon reasonable prior notice) to Borrowers’ books and records for the purpose of verifying the use of such proceeds. Borrowers also will furnish or cause to be furnished to Agent and the Lenders such other information regarding the
business, affairs and condition of Borrowers as Agent or the Lenders may from time to time reasonably request, and such information shall be certified by the President, Chief Executive Officer or Chief Financial Officer of Borrowers to the extent
requested by Agent or Lender for compliance with the SBIC Act. 
 (e) Use of Proceeds. Borrowers will use the
proceeds from the Loan only for purposes set forth in Section 7.17. Borrowers will deliver to Agent from time to time promptly following Agent’s request, a written report, certified as correct by Borrowers’ Chief Financial Officer,
verifying the purposes and amounts for which proceeds from the Loan have been disbursed. Borrowers will supply to Agent such additional information and documents as Agent reasonably requests with respect to its use of proceeds and will, to the
extent required by Section 7.2, permit Agent and the Lenders and the SBA to have access (during regular business hours and upon reasonable prior notice) to any and all Borrowers records and information and personnel as Agent deems necessary to
verify how such proceeds have been or are being used, and to assure that the proceeds have been used for the purposes specified in Section 7.17. 

 (f) Activities and Proceeds. Neither Borrower nor any of its
affiliates (if any) will engage in any activities or use directly or indirectly the proceeds from the Loan for any purpose for which a small business investment company is prohibited from providing funds by the SBIC Act, including 13 C.F.R.
§107.720. The Borrower shall not, nor shall it cause or permit any of its subsidiaries to, without obtaining the prior written approval of Agent, change the Borrower’s or any such subsidiary’s business activities from that
conducted on the date hereof to a business activity from which a small business investment company is prohibited from providing funds by the SBIC Act. The Borrower agrees that any such change in its or any such subsidiary’s business activities
without such prior written consent of Agent shall constitute a material breach of the obligations of the Borrower under this Addendum 1. 

(g) Redemption Provisions. Notwithstanding any provision to the contrary contained in the Fourth Amended and Restated
Operating Agreement of Parent, as amended from time to time (the “Operating Agreement”), if, pursuant to the redemption provisions contained in the Operating Agreement, the Lenders is entitled to a redemption of its Warrant, such
redemption (in the case of the Lenders) will be at a price equal to the redemption price set forth in the Operating Agreement (the “Existing Redemption Price”). If, however, the Lenders delivers written notice to Borrowers that the then
current regulations promulgated under the SBIC Act prohibit payment of the Existing Redemption Price in the case of an SBIC (or, if applied, the Existing Redemption Price would cause the Class B Preferred Units to lose its classification as an
“equity security” and the Lenders has determined that such classification is unadvisable), the amount the Lenders will be entitled to receive shall be the greater of (i) fair market value of the securities being redeemed taking into
account the rights and preferences of such securities plus any costs and expenses of the Lenders incurred in making or maintaining the Warrant, and (ii) the Existing Redemption Price where the amount of accrued but unpaid dividends payable to
the Lenders is limited to Borrowers’ earnings plus any costs and expenses of the Lenders incurred in making or maintaining the Warrant; provided, however, the amount calculated in subsections (i) or (ii) above shall not exceed the Existing
Redemption Price. 
 (h) Compliance and Resolution. Each Borrower agrees that a failure to comply with
Borrowers’ obligations under this Addendum, or any other set of facts or circumstances where it has been asserted by any governmental regulatory agency (or Agent or the Lenders believes that there is a substantial risk of such assertion) that
Agent, the Lenders and their affiliates are not entitled to hold, or exercise any significant right with respect to, any securities issued to the Lenders by Borrowers, will constitute a breach of the obligations of Borrowers under the financing
agreements among Borrowers, Agent and the Lenders. In the event of (i) a failure to comply with Borrowers’ obligations under this Addendum; or (ii) an assertion by any governmental regulatory agency (or Agent or the Lenders
believes that there is a substantial risk of such assertion) of a failure to comply with Borrowers’ obligations under this Addendum, then (i) Agent, the Lenders and Borrowers will meet and resolve any such issue in good faith to the
satisfaction of Borrowers, Agent, the Lenders, and any governmental regulatory agency, and (ii) upon request of the Lenders or Agent, Borrowers will cooperate and assist with any assignment of the financing agreements among Hercules Technology
III, L.P. and Hercules Capital, Inc. 

 ADDENDUM 3 to LOAN AND SECURITY AGREEMENT 

Agent and Lender Terms 

(a) Each Lender hereby irrevocably appoints Hercules Capital, Inc. to act on its behalf as the Agent hereunder and under the
other Loan Documents and authorizes the Agent to take such actions on its behalf and to exercise such powers as are delegated to the Agent by the terms hereof or thereof, together with such actions and powers as are reasonably incidental thereto.

 (b) Each Lender agrees to indemnify the Agent in its capacity as such (to the extent not reimbursed by Borrowers and
without limiting the obligation of Borrowers to do so), according to its respective Term Commitment percentages (based upon the total outstanding Term Commitments) in effect on the date on which indemnification is sought under this Addendum 3, from
and against any and all liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or disbursements of any kind whatsoever that may at any time be imposed on, incurred by or asserted against the Agent in any way
relating to or arising out of, this Agreement, any of the other Loan Documents or any documents contemplated by or referred to herein or therein or the transactions contemplated hereby or thereby or any action taken or omitted by the Agent under or
in connection with any of the foregoing; The agreements in this Section shall survive the payment of the Loans and all other amounts payable hereunder. 

(c) Agent in Its Individual Capacity. The Person serving as the Agent hereunder shall have the same rights and powers in its
capacity as a Lender as any other Lender and may exercise the same as though it were not the Agent and the term “Lender” shall, unless otherwise expressly indicated or unless the context otherwise requires, include each such Person serving
as Agent hereunder in its individual capacity. 
 (d) Exculpatory Provisions. The Agent shall have no duties or obligations
except those expressly set forth herein and in the other Loan Documents. Without limiting the generality of the foregoing, the Agent shall not: 
  

	 	(i)	 be subject to any fiduciary or other implied duties, regardless of whether any default or any Event of Default
has occurred and is continuing; 

  

	 	(ii)	 have any duty to take any discretionary action or exercise any discretionary powers, except discretionary
rights and powers expressly contemplated hereby or by the other Loan Documents that the Agent is required to exercise as directed in writing by the Lenders, provided that the Agent shall not be required to take any action that, in its opinion or the
opinion of its counsel, may expose the Agent to liability or that is contrary to any Loan Document or applicable law; and 

  

	 	(iii)	 except as expressly set forth herein and in the other Loan Documents, have any duty to disclose, and the Agent
shall not be liable for the failure to disclose, any information relating to Borrowers or any of its Affiliates that is communicated to or obtained by any Person serving as the Agent or any of its Affiliates in any capacity. 

(e) The Agent shall not be liable for any action taken or not taken by it (i) with the consent or at the request of the
Lenders or as the Agent shall believe in good faith shall be necessary, under the circumstances or (ii) in the absence of its own gross negligence or willful misconduct. 

(f) The Agent shall not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or
representation made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other document delivered hereunder or thereunder or in connection herewith or therewith, (iii) the
performance or observance of any of the covenants, agreements or other terms or conditions set forth herein or therein or the occurrence of any default or Event of Default, (iv) the validity, enforceability, effectiveness or genuineness of this
Agreement, any other Loan 

 Document or any other agreement, instrument or document or (v) the satisfaction of any
condition set forth in Section 4 or elsewhere herein, other than to confirm receipt of items expressly required to be delivered to the Agent. Reliance by Agent. Agent may rely, and shall be fully protected in acting, or refraining to act, upon,
any resolution, statement, certificate, instrument, opinion, report, notice, request, consent, order, bond or other paper or document that it has no reason to believe to be other than genuine and to have been signed or presented by the proper party
or parties or, in the case of cables, telecopies and telexes, to have been sent by the proper party or parties. In the absence of its gross negligence or willful misconduct, Agent may conclusively rely, as to the truth of the statements and the
correctness of the opinions expressed therein, upon any certificates or opinions furnished to Agent and conforming to the requirements of the Loan Agreement or any of the other Loan Documents. Agent may consult with counsel, and any opinion or legal
advice of such counsel shall be full and complete authorization and protection in respect of any action taken, not taken or suffered by Agent hereunder or under any Loan Documents in accordance therewith. Agent shall have the right at any time to
seek instructions concerning the administration of the Collateral from any court of competent jurisdiction. Agent shall not be under any obligation to exercise any of the rights or powers granted to Agent by this Agreement, the Loan Agreement and
the other Loan Documents at the request or direction of the Lenders unless Agent shall have been provided by the Lenders with adequate security and indemnity against the costs, expenses and liabilities that may be incurred by it in compliance with
such request or direction. 

 ADDENDUM 4 to LOAN AND SECURITY AGREEMENT 

Multiple Borrower Terms 

(a) Borrower’s Agent. Each of the Borrowers hereby irrevocably appoints Yumanity as its agent, attorney-in-fact and legal representative for all purposes, including requesting disbursement of the Term Loan and receiving account statements and other notices and
communications to Borrowers (or any of them) from the Agent or any Lender. The Agent may reasonably rely, and shall be fully protected in relying, on any request for the Term Loan, disbursement instruction, report, information or any other notice or
communication made or given by Yumanity, whether in its own name or on behalf of one or more of the other Borrowers, and the Agent shall not have any obligation to make any inquiry or request any confirmation from or on behalf of any other Borrower
as to the binding effect on it of any such request, instruction, report, information, other notice or communication, nor shall the joint and several character of the Borrowers’ obligations hereunder be affected thereby. 

(b) Waivers. Each Borrower hereby waives: (i) any right to require the Agent to institute suit against, or to exhaust its
rights and remedies against, any other Borrower or any other person, or to proceed against any property of any kind which secures all or any part of the Secured Obligations, or to exercise any right of offset or other right with respect to any
reserves, credits or deposit accounts held by or maintained with the Agent or any Indebtedness of the Agent or any Lender to any other Borrower, or to exercise any other right or power, or pursue any other remedy the Agent or any Lender may have;
(ii) any defense arising by reason of any disability or other defense of any other Borrower or any guarantor or any endorser, co-maker or other person, or by reason of the cessation from any cause
whatsoever of any liability of any other Borrower or any guarantor or any endorser, co-maker or other person, with respect to all or any part of the Secured Obligations, or by reason of any act or omission of
the Agent or others which directly or indirectly results in the discharge or release of any other Borrower or any guarantor or any other person or any Secured Obligations or any security therefor, whether by operation of law or otherwise;
(iii) any defense arising by reason of any failure of the Agent to obtain, perfect, maintain or keep in force any Lien on, any property of any Borrower or any other person; (iv) any defense based upon or arising out of any bankruptcy,
insolvency, reorganization, arrangement, readjustment of debt, liquidation or dissolution proceeding commenced by or against any other Borrower or any guarantor or any endorser, co-maker or other person,
including without limitation any discharge of, or bar against collecting, any of the Secured Obligations (including without limitation any interest thereon), in or as a result of any such proceeding. Until all of the Secured Obligations have been
paid, performed, and discharged in full, nothing shall discharge or satisfy the liability of any Borrower hereunder except the full performance and payment of all of the Secured Obligations. If any claim is ever made upon the Agent for repayment or
recovery of any amount or amounts received by the Agent in payment of or on account of any of the Secured Obligations, because of any claim that any such payment constituted a preferential transfer or fraudulent conveyance, or for any other reason
whatsoever, and the Agent repays all or part of said amount by reason of any judgment, decree or order of any court or administrative body having jurisdiction over the Agent or any of its property, or by reason of any settlement or compromise of any
such claim effected by the Agent with any such claimant (including without limitation the any other Borrower), then and in any such event, each Borrower agrees that any such judgment, decree, order, settlement and compromise shall be binding upon
such Borrower, notwithstanding any revocation or release of this Agreement or the cancellation of any note or other instrument evidencing any of the Secured Obligations, or any release of any of the Secured Obligations, and each Borrower shall be
and remain liable to the Agent and the Lenders under this Agreement for the amount so repaid or recovered, to the same extent as if such amount had never originally been received by the Agent or any Lender, and the provisions of this sentence shall
survive, and continue in effect, notwithstanding any revocation or release of this Agreement. Each Borrower hereby expressly and unconditionally waives all rights of subrogation, reimbursement and indemnity of every kind against any other Borrower,
and all rights of recourse to any assets or property of any other Borrower, and all rights to any collateral or security held for the payment and performance of any Secured Obligations, including (but not limited to) any of the foregoing rights
which Borrower may have under any present or future document or agreement with any other Borrower or other person, and including (but not limited to) any of the foregoing rights which any Borrower may have under any equitable doctrine of
subrogation, implied contract, or unjust enrichment, or any other equitable or legal doctrine. 

 (c) Consents. Each Borrower hereby consents and agrees that, without notice
to or by Borrower and without affecting or impairing in any way the obligations or liability of Borrower hereunder, the Agent may, from time to time before or after revocation of this Agreement, do any one or more of the following in its sole and
absolute discretion: (i) accept partial payments of, compromise or settle, renew, extend the time for the payment, discharge, or performance of, refuse to enforce, and release all or any parties to, any or all of the Secured Obligations;
(ii) grant any other indulgence to any Borrower or any other Person in respect of any or all of the Secured Obligations or any other matter; (iii) accept, release, waive, surrender, enforce, exchange, modify, impair, or extend the time for
the performance, discharge, or payment of, any and all property of any kind securing any or all of the Secured Obligations or any guaranty of any or all of the Secured Obligations, or on which the Agent at any time may have a Lien, or refuse to
enforce its rights or make any compromise or settlement or agreement therefor in respect of any or all of such property; (iv) substitute or add, or take any action or omit to take any action which results in the release of, any one or more
other Borrowers or any endorsers or guarantors of all or any part of the Secured Obligations, including, without limitation one or more parties to this Agreement, regardless of any destruction or impairment of any right of contribution or other
right of Borrower; (v) apply any sums received from any other Borrower, any guarantor, endorser, or co-signer, or from the disposition of any Collateral or security, to any Indebtedness whatsoever owing
from such person or secured by such Collateral or security, in such manner and order as the Agent determines in its sole discretion, and regardless of whether such Indebtedness is part of the Secured Obligations, is secured, or is due and payable.
Each Borrower consents and agrees that the Agent shall be under no obligation to marshal any assets in favor of Borrower, or against or in payment of any or all of the Secured Obligations. Each Borrower further consents and agrees that the Agent
shall have no duties or responsibilities whatsoever with respect to any property securing any or all of the Secured Obligations. Without limiting the generality of the foregoing, the Agent shall have no obligation to monitor, verify, audit, examine,
or obtain or maintain any insurance with respect to, any property securing any or all of the Secured Obligations. 
 (d)
Independent Liability. Each Borrower hereby agrees that one or more successive or concurrent actions may be brought hereon against such Borrower, in the same action in which any other Borrower may be sued or in separate actions, as often as deemed
advisable by Agent. Each Borrower is fully aware of the financial condition of each other Borrower and is executing and delivering this Agreement based solely upon its own independent investigation of all matters pertinent hereto, and such Borrower
is not relying in any manner upon any representation or statement of the Agent or any Lender with respect thereto. Each Borrower represents and warrants that it is in a position to obtain, and each Borrower hereby assumes full responsibility for
obtaining, any additional information concerning any other Borrower’s financial condition and any other matter pertinent hereto as such Borrower may desire, and such Borrower is not relying upon or expecting the Agent to furnish to it any
information now or hereafter in the Agent’s possession concerning the same or any other matter. 
 (e) Subordination.
All Indebtedness of a Borrower now or hereafter arising held by another Borrower is subordinated to the Secured Obligations and the Borrower holding the Indebtedness shall take all actions reasonably requested by Agent to effect, to enforce and to
give notice of such subordination. 

 FIRST AMENDMENT TO LOAN AND SECURITY AGREEMENT 

THIS FIRST AMENDMENT TO LOAN AND SECURITY AGREEMENT (this “Amendment”), effective as of April 10, 2020 by and among
YUMANITY THERAPEUTICS, INC., a Delaware corporation (“Yumanity”, and together with each Subsidiary of Yumanity from time to time party hereto as a borrower, collectively, “Borrowers”, and each, a “Borrower”), the
several banks and other financial institutions or entities from time to time parties to this Agreement (collectively, the “Lenders”, and each, a “Lender”) and HERCULES CAPITAL, INC., a Maryland corporation, in its capacity as
administrative agent and collateral agent for the Lenders (in such capacity, “Agent”). 
 A. Borrowers, Lender and Agent are
parties to a Loan and Security Agreement, dated as of December 20, 2019 (as further amended, restated or modified from time to time, the “Loan Agreement”). 

B. Borrowers, Lender and Agent desire to modify the terms of the Loan Agreement as set forth in this Amendment. 

SECTION 1 Definitions; Interpretation. 

(a) Terms Defined in Loan Agreement. All capitalized terms used in this Amendment (including in the recitals hereof) and not otherwise
defined herein shall have the meanings assigned to them in the Loan Agreement. 
 (b) Rules of Construction. The rules of construction
that appear in the last paragraph of Section 1.1 of the Loan Agreement shall be applicable to this Amendment and are incorporated herein by this reference. 

SECTION 2 Amendments to the Loan Agreement. 

(a) The Loan Agreement shall be amended as follows effective as of the date hereof: 

(i) The following defined terms are either added in appropriate alphabetical order to, or amended and restated in,
Section 1.1 of the Loan Agreement, to read as follows: 
 “First Amendment Effective
Date” means April 10, 2020. 
 “Merck Transaction” means the transaction contemplated by Borrower and
Merck & Co, Inc. or one of its Affiliates consistent with terms as set forth in the term sheet delivered to Agent on March 24, 2020. 

“Non-Core Indication” means any specific disease indication that is not
(a) Parkinson’s Disease or a subtype, symptom, or off-shoot of the broader Parkinson’s Disease indication, (b) Lewy Body Dementia or a subtype, symptom, or
off-shoot of the broader Lewy Body Dementia indication, (c) amyotrophic lateral sclerosis or a subtype, symptom, or off-shoot of the broader amyotrophic lateral
sclerosis indication, or (d) any other indication Borrower, in its reasonable discretion, upon prior consultation with Agent, deems to be “core” to Borrower, provided that as of the First Amendment Effective Date, Agent acknowledges
that the disease indication that is the subject of the Merck Transaction is not “core” to Borrower. 

“Performance Milestone” means Borrowers shall have delivered evidence satisfactory to Agent, in Agent’s sole
discretion, that the following conditions shall have been met: (i) completion of the Phase 1 clinical evaluation of YTX-7739 in healthy volunteers, with data, taken as a whole, deemed to evidence
“Proof of Biology” (i.e. confirmation of target engagement with no adverse safety concerns which together support advancement into a Phase 1b proof-of-concept
clinical trial as the next step in clinical development), and (ii) Borrowers shall have received after the Closing Date but no later than March 31, 2021, in unrestricted (including, not subject to any redemption, clawback, escrow or
similar encumbrance or restriction) net cash proceeds (not including proceeds from the conversion or cancellation of Indebtedness) in an aggregate amount 

 
not less than $55,000,000, which proceeds shall be immediately deposited in a Deposit Account or Securities Account of Borrowers subject to an Account Control Agreement in favor of Agent from
(A) the sale and issuance of Equity Interests or Subordinated Indebtedness to investors and on terms satisfactory to Agent, and/or (B) upfront payments pursuant to a business development transaction permitted under this Agreement, as well
as defined milestone payments received after an upfront payment but prior to March 31, 2021 (provided that cost-plus or FTE reimbursement arrangements shall not count as milestone payments), subject to verification by Agent (including
supporting documentation requested by Agent). For the avoidance of doubt, for purposes of the foregoing, the Merck Transaction shall be a permitted business development transaction, and the investors in the proposed equity transaction described to
Agent as of the First Amendment Effective Date are hereby confirmed as satisfactory to Agent. 
 (ii) Section 7.18
of the Loan Agreement is hereby amended and restated to read as follows: 
 7.18 Financial Covenant – Minimum Cash. Borrowers shall
maintain, at all times, minimum unrestricted Cash in an amount not less than $4,000,000 in a Deposit Account subject to an Account Control Agreement in favor of Agent. The foregoing covenant shall cease to apply upon Borrowers’ delivery to
Agent of evidence satisfactory to Agent in its sole discretion that Borrowers shall have received after the First Amendment Effective Date but no later than March 31, 2021, unrestricted (including, not subject to any redemption, clawback,
escrow or similar encumbrance or restriction) net cash proceeds (not including proceeds from the conversion or cancellation of Indebtedness) in an aggregate amount not less than $30,000,000, which proceeds shall be immediately deposited in a Deposit
Account or Securities Account of Borrowers subject to an Account Control Agreement in favor of Agent from (A) the sale and issuance of Equity Interests or Subordinated Indebtedness to investors and on terms reasonably satisfactory to Agent,
and/or (B) upfront payments pursuant to a business development transaction permitted under this Agreement, subject to verification by Agent (including supporting documentation requested by Agent). 

(iii) Section 9.2 of the Loan Agreement is hereby amended and restated to read as follows: 

9.2 Covenants. A Borrower breaches or defaults in the performance of any covenant or Secured Obligation under this Agreement, or any of the
other Loan Documents or any other agreement among a Borrower, Agent and the Lenders, and (a) with respect to a default under any covenant under this Agreement (other than under Sections 6, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 7.15, 7.16, 7.17, 7.18,
7.19, 7.21 and 7.22), any other Loan Document, or any other agreement among a Borrower, Agent and the Lenders, such default continues for more than ten (10) days after the earlier of the date on which (i) Agent or the Lenders has given
notice of such default to a Borrower and (ii) a Borrower has actual knowledge of such default or (b) with respect to a default under any of Sections 6, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 7.15, 7.16, 7.17, 7.18, 7.21 and 7.22, the occurrence of
such default; or 
 (iv) Exhibit E to the Loan Agreement is hereby amended and restated in its entirety as set forth in
Exhibit E attached hereto. 
 (b) References Within Loan Agreement. Each reference in the Loan Agreement to
“this Agreement” and the words “hereof,” “herein,” “hereunder,” or words of like import, shall mean and be a reference to the Loan Agreement as amended by this Amendment. This Amendment shall be a Loan
Document. 
 SECTION 3 Conditions of Effectiveness. The effectiveness of Section 2 of this Amendment
shall be subject to Agent’s receipt of the following documents, in form and substance satisfactory to Agent, or, as applicable, the following conditions being met: 

(a) this Amendment, executed by Agent, Lender and Borrowers; 

(b) an affirmation of Guaranty, duly executed by Parent; 

  
 2 

 (c) payment of all of Agent’s reasonable documented out-of-pocket costs and expenses incurred through the date hereof in connection with any of the Loan Documents. 

SECTION 4 Representations and Warranties. To induce Agent and Lender to enter into this Amendment, Borrowers hereby confirm, as of the date hereof,
(a) that the representations and warranties made by it in Section 5 of the Loan Agreement and in the other Loan Documents are true and correct in all material respects; provided, however, that such materiality
qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; (b) that there has not been and there does not exist a Material Adverse Effect, and (c) that
no Event of Default has occurred and is continuing. 
 SECTION 5 Miscellaneous. 

(a) Loan Documents Otherwise Not Affected; Reaffirmation. Except as expressly amended pursuant hereto or referenced herein, the Loan
Agreement and the other Loan Documents shall remain unchanged and in full force and effect and are hereby ratified and confirmed in all respects. Lender’s and Agent’s execution and delivery of, or acceptance of, this Amendment shall not be
deemed to create a course of dealing or otherwise create any express or implied duty by any of them to provide any other or further amendments, consents or waivers in the future. Borrowers hereby reaffirm the security interest granted pursuant to
the Loan Documents and hereby reaffirm that such grant of security in the Collateral secures all Secured Obligations under the Loan Agreement and the other Loan Documents. 

(b) Release. In consideration of the agreements of Agent and Lender contained herein and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, each Borrower, on behalf of itself and its successors, assigns, and other legal representatives, hereby fully, absolutely, unconditionally and irrevocably releases, remises and forever
discharges Agent and Lender, and its successors and assigns, and its present and former shareholders, affiliates, subsidiaries, divisions, predecessors, directors, officers, attorneys, employees, agents and other representatives (Agent, Lender and
all such other persons being hereinafter referred to collectively as the “Releasees” and individually as a “Releasee”), of and from all demands, actions, causes of action, suits, covenants, contracts, controversies,
agreements, promises, sums of money, accounts, bills, reckonings, damages and any and all other claims, counterclaims, defenses, rights of set-off, demands and liabilities whatsoever of every name and nature,
known or unknown, suspected or unsuspected, both at law and in equity, which a Borrower, or any of its successors, assigns, or other legal representatives may now or hereafter own, hold, have or claim to have against the Releasees or any of them
for, upon, or by reason of any circumstance, action, cause or thing whatsoever which arises at any time on or prior to the day and date of this Amendment, including, without limitation, for or on account of, or in relation to, or in any way in
connection with the Loan Agreement, or any of the other Loan Documents or transactions thereunder or related thereto. Each Borrower waives the provisions of California Civil Code section 1542, which states: 

A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS THAT THE CREDITOR OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF
EXECUTING THE RELEASE AND THAT, IF KNOWN BY HIM OR HER, WOULD HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR OR RELEASED PARTY. 
 Each
Borrower understands, acknowledges and agrees that the release set forth above may be pleaded as a full and complete defense and may be used as a basis for an injunction against any action, suit or other proceeding which may be instituted,
prosecuted or attempted in breach of the provisions of such release. Each Borrower agrees that no fact, event, circumstance, evidence or transaction which could now be asserted or which may hereafter be discovered shall affect in any manner the
final, absolute and unconditional nature of the release set forth above. The provisions of this section shall survive payment in full of the Secured Obligations, full performance of all the terms of this Amendment and the other Loan Documents. 

(c) Acknowledgement. Agent acknowledges that it is not aware of any Event of Default existing as of the date of this Amendment. 

  
 3 

 (d) No Reliance. Each Borrower hereby acknowledges and confirms to Agent and Lender
that such Borrower is executing this Amendment on the basis of its own investigation and for its own reasons without reliance upon any agreement, representation, understanding or communication by or on behalf of any other Person. 

(e) Costs and Expenses. Each Borrower agrees to pay to Agent the date hereof the reasonable documented out-of-pocket costs and expenses of Agent and Lender party hereto, and the reasonable documented out-of-pocket fees and
disbursements of counsel to Agent and Lender party hereto in connection with the negotiation, preparation, execution and delivery of this Amendment and any other documents to be delivered in connection herewith on the date hereof. 

(f) Binding Effect. This Amendment binds and is for the benefit of the successors and permitted assigns of each party. 

(g) Governing Law. This Amendment and the other Loan Documents shall be governed by, and construed and enforced in accordance with, the
laws of the State of California, excluding conflict of laws principles that would cause the application of laws of any other jurisdiction. 

(h) Complete Agreement; Amendments. This Amendment and the Loan Documents represent the entire agreement about this subject matter and
supersede prior negotiations or agreements with respect to such subject matter. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Amendment and the Loan Documents
merge into this Amendment and the Loan Documents. 
 (i) Severability of Provisions. Each provision of this Amendment is severable
from every other provision in determining the enforceability of any provision. 
 (j) Counterparts. This Amendment may be executed in
any number of counterparts and by different parties on separate counterparts, each of which, when executed and delivered, is an original, and all taken together, constitute one Amendment. Delivery of an executed counterpart of a signature page of
this Amendment by facsimile, portable document format (.pdf) or other electronic transmission will be as effective as delivery of a manually executed counterpart hereof. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 4 

 [SIGNATURE PAGE TO FIRST AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment, as of the date first above written. 

 

			
	BORROWER:
	
	YUMANITY THERAPEUTICS, INC.
		
	Signature:	 	/s/ Paulash Mohsen
	Print Name:	 	Paulash Mohsen
	Title:	 	Chief Business Officer

 [SIGNATURE PAGE TO FIRST AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

 

			
	AGENT:
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	/s/ Jennifer Choe
	Print Name:	 	Jennifer Choe
	Title:	 	Associate General Counsel
	
	LENDER:
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	/s/ Jennifer Choe
	Print Name:	 	Jennifer Choe
	Title:	 	Associate General Counsel

 SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT 

THIS SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT (this “Amendment”), effective as of April 24, 2020 by and
among YUMANITY THERAPEUTICS, INC., a Delaware corporation (“Yumanity”, and together with each Subsidiary of Yumanity from time to time party hereto as a borrower, collectively, “Borrowers”, and each, a
“Borrower”), the several banks and other financial institutions or entities from time to time parties to this Agreement (collectively, the “Lenders”, and each, a “Lender”) and HERCULES CAPITAL, INC., a Maryland
corporation, in its capacity as administrative agent and collateral agent for the Lenders (in such capacity, “Agent”). 
 A.
Borrowers, Lender and Agent are parties to a Loan and Security Agreement, dated as of December 20, 2019 as amended by that certain First Amendment to Loan and Security Agreement dated April 10, 2020 (and as further amended, restated or
modified from time to time, the “Loan Agreement”). 
 B. Borrowers, Lender and Agent desire to modify the terms of the Loan
Agreement as set forth in this Amendment. 
 SECTION 1 Definitions; Interpretation. 

(a) Terms Defined in Loan Agreement. All capitalized terms used in this Amendment (including in the recitals hereof) and not otherwise
defined herein shall have the meanings assigned to them in the Loan Agreement. 
 (b) Rules of Construction. The rules of construction
that appear in the last paragraph of Section 1.1 of the Loan Agreement shall be applicable to this Amendment and are incorporated herein by this reference. 

SECTION 2 Amendments to the Loan Agreement. 

(a) The Loan Agreement shall be amended as follows effective as of the date hereof: 

(i) The following defined term is added in appropriate alphabetical order to Section 1.1 of the Loan Agreement: 

“CARES Act” means the Coronavirus Aid, Relief and Economic Stability Act. 

(ii) The definition of “Permitted Indebtedness” in Section 1.1 of the Loan Agreement is hereby amended by
adding the following clause (viii) to such definition and renumbering the existing clause (viii) and the subsequent clauses in such definition in numerical order: 

“(ix) Indebtedness consisting of a loan under the Paycheck Protection Program of the CARES Act provided that (A) such
loan shall be unsecured and shall not contain any terms or conditions that are adverse to Agent’s and the Lenders’ rights under this Agreement, including with respect to collateral, priority, preference and repayment terms, (B) such
loan shall be subject to Agent’s written approval in its reasonable discretion prior to the closing thereof (which may be provided via e-mail) and (C) any material modification to such loan shall be
subject to Agent’s written approval (which may be provided via e-mail) (a “PPP Loan”);” 

(iii) Section 7.4 of the Loan Agreement is hereby amended and restated to read as follows: 

“7.4 Indebtedness. No Borrower shall create, incur, assume, guarantee or be or remain liable with respect to any
Indebtedness, or permit any Subsidiary to do so, other than Permitted Indebtedness, or prepay any Subordinated Indebtedness or the PPP Loan or take any actions which impose on a Borrower an obligation to prepay any Indebtedness, except for
(a) the conversion of Indebtedness into equity securities and the payment of cash in lieu of fractional shares in connection with such conversion, (b) purchase money Indebtedness pursuant to its then applicable payment schedule,
(c) prepayment by any Subsidiary of (i) inter-company Indebtedness owed by such Subsidiary to any Borrower, or (ii) if such Subsidiary is not a Borrower, intercompany Indebtedness owed by such Subsidiary to another Subsidiary that is
not a Borrower or (d) as 

 
otherwise permitted hereunder or approved in writing by Agent. Notwithstanding anything to the contrary herein, so long as (i) no Event of Default has occurred and is continuing,
(ii) Borrower has used commercially reasonable efforts to use the proceeds of the PPP Loan in a manner that allows for the maximum amount of forgiveness of Indebtedness under the PPP Loan and (iii) Borrower has made a timely request (and
in any event, prior to the first amortization payment) to the lender under the PPP Loan for forgiveness of the maximum amount of Indebtedness eligible for forgiveness thereunder, then Borrower may make payments of principal and interest on the PPP
Loan in accordance with the amortization schedule thereunder.” 
 (b) References Within Loan Agreement. Each reference in the
Loan Agreement to “this Agreement” and the words “hereof,” “herein,” “hereunder,” or words of like import, shall mean and be a reference to the Loan Agreement as amended by this Amendment. This Amendment shall
be a Loan Document. 
 SECTION 3 Conditions of Effectiveness. The effectiveness of Section 2 of this Amendment shall
be subject to Agent’s receipt of the following documents, in form and substance satisfactory to Agent, or, as applicable, the following conditions being met: 

(a) this Amendment, executed by Agent, Lenders and Borrowers; 

(b) payment of all of Agent’s reasonable documented
out-of-pocket costs and expenses incurred through the date hereof in connection with any of the Loan Documents; and 

(c) the opening of a new Deposit Account by Borrowers for the receipt of the proceeds of the PPP Loan (the “PPP Loan
Account”). 
 SECTION 4 Representations and Warranties. To induce Agent and Lender to enter into this Amendment, Borrowers hereby confirm,
as of the date hereof, (a) that the representations and warranties made by it in Section 5 of the Loan Agreement and in the other Loan Documents are true and correct in all material respects; provided, however,
that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; (b) that there has not been and there does not exist a Material Adverse
Effect, and (c) that no Event of Default has occurred and is continuing. 
 SECTION 5 PPP Loan. 

(a) Account Control Agreement. Borrower shall deliver, in form and substance satisfactory to Agent, an Account Control Agreement in
favor of Agent duly executed by Silicon Valley Bank, Borrower and Agent within thirty (30) days of the date hereof. 
 (b) No
Commingling of Funds. Borrower shall deposit and maintain the proceeds of the PPP Loan exclusively in the PPP Loan Account and not commingle such proceeds with funds in any of Borrowers’ other Deposit Accounts or accounts holding Investment
Property. 
 SECTION 6 Miscellaneous. 

(a) Loan Documents Otherwise Not Affected; Reaffirmation. Except as expressly amended pursuant hereto or referenced herein, the Loan
Agreement and the other Loan Documents shall remain unchanged and in full force and effect and are hereby ratified and confirmed in all respects. Lender’s and Agent’s execution and delivery of, or acceptance of, this Amendment shall not be
deemed to create a course of dealing or otherwise create any express or implied duty by any of them to provide any other or further amendments, consents or waivers in the future. Borrowers hereby reaffirm the security interest granted pursuant to
the Loan Documents and hereby reaffirm that such grant of security in the Collateral secures all Secured Obligations under the Loan Agreement and the other Loan Documents. 

  
 2 

 (b) Release. In consideration of the agreements of Agent and Lender contained herein
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each Borrower, on behalf of itself and its successors, assigns, and other legal representatives, hereby fully, absolutely, unconditionally
and irrevocably releases, remises and forever discharges Agent and Lender, and its successors and assigns, and its present and former shareholders, affiliates, subsidiaries, divisions, predecessors, directors, officers, attorneys, employees, agents
and other representatives (Agent, Lender and all such other persons being hereinafter referred to collectively as the “Releasees” and individually as a “Releasee”), of and from all demands, actions, causes of
action, suits, covenants, contracts, controversies, agreements, promises, sums of money, accounts, bills, reckonings, damages and any and all other claims, counterclaims, defenses, rights of set-off, demands
and liabilities whatsoever of every name and nature, known or unknown, suspected or unsuspected, both at law and in equity, which a Borrower, or any of its successors, assigns, or other legal representatives may now or hereafter own, hold, have or
claim to have against the Releasees or any of them for, upon, or by reason of any circumstance, action, cause or thing whatsoever which arises at any time on or prior to the day and date of this Amendment, including, without limitation, for or on
account of, or in relation to, or in any way in connection with the Loan Agreement, or any of the other Loan Documents or transactions thereunder or related thereto. Each Borrower waives the provisions of California Civil Code section 1542, which
states: 
 A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS THAT THE CREDITOR OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE
TIME OF EXECUTING THE RELEASE AND THAT, IF KNOWN BY HIM OR HER, WOULD HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR OR RELEASED PARTY. 

Each Borrower understands, acknowledges and agrees that the release set forth above may be pleaded as a full and complete defense and may be used as a basis
for an injunction against any action, suit or other proceeding which may be instituted, prosecuted or attempted in breach of the provisions of such release. Each Borrower agrees that no fact, event, circumstance, evidence or transaction which could
now be asserted or which may hereafter be discovered shall affect in any manner the final, absolute and unconditional nature of the release set forth above. The provisions of this section shall survive payment in full of the Secured Obligations,
full performance of all the terms of this Amendment and the other Loan Documents. 
 (c) Acknowledgement. Agent acknowledges that it
is not aware of any Event of Default existing as of the date of this Amendment. 
 (d) No Reliance. Each Borrower hereby acknowledges
and confirms to Agent and Lender that such Borrower is executing this Amendment on the basis of its own investigation and for its own reasons without reliance upon any agreement, representation, understanding or communication by or on behalf of any
other Person. 
 (e) Costs and Expenses. Each Borrower agrees to pay to Agent the date hereof the reasonable documented out-of-pocket costs and expenses of Agent and Lender party hereto, and the reasonable documented
out-of-pocket fees and disbursements of counsel to Agent and Lender party hereto in connection with the negotiation, preparation, execution and delivery of this
Amendment and any other documents to be delivered in connection herewith on the date hereof. 
 (f) Binding Effect. This Amendment
binds and is for the benefit of the successors and permitted assigns of each party. 
 (g) Governing Law. This Amendment and the other
Loan Documents shall be governed by, and construed and enforced in accordance with, the laws of the State of California, excluding conflict of laws principles that would cause the application of laws of any other jurisdiction. 

(h) Complete Agreement; Amendments. This Amendment and the Loan Documents represent the entire agreement about this subject matter and
supersede prior negotiations or agreements with respect to such subject matter. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Amendment and the Loan Documents
merge into this Amendment and the Loan Documents. 
 (i) Severability of Provisions. Each provision of this Amendment is severable
from every other provision in determining the enforceability of any provision. 

  
 3 

 (j) Counterparts. This Amendment may be executed in any number of counterparts and by
different parties on separate counterparts, each of which, when executed and delivered, is an original, and all taken together, constitute one Amendment. Delivery of an executed counterpart of a signature page of this Amendment by facsimile,
portable document format (.pdf) or other electronic transmission will be as effective as delivery of a manually executed counterpart hereof. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 4 

 [SIGNATURE PAGE TO SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment, as of the date first above written. 

 

			
	BORROWER:
	
	YUMANITY THERAPEUTICS, INC.
		
	Signature:	 	 /s/ Paulash Mohsen

	Print Name:	 	Paulash Mohsen
	Title:	 	Chief Business Officer

 [SIGNATURE PAGE TO SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

 

			
	AGENT:
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	 /s/ Jennifer Choe

	Print Name:	 	Jennifer Choe
	Title:	 	Associate General Counsel
	
	LENDER:
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	 /s/ Jennifer Choe

	Print Name:	 	Jennifer Choe
	Title:	 	Associate General Counsel

 THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT 

THIS THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT (this “Amendment”), effective as of June 10, 2020 by and
among YUMANITY THERAPEUTICS, INC., a Delaware corporation (“Yumanity”, and together with each Subsidiary of Yumanity from time to time party hereto as a borrower, collectively, “Borrowers”, and each, a
“Borrower”), the several banks and other financial institutions or entities from time to time parties to this Agreement (collectively, the “Lenders”, and each, a “Lender”) and HERCULES CAPITAL, INC., a Maryland
corporation, in its capacity as administrative agent and collateral agent for the Lenders (in such capacity, “Agent”). 
 A.
Borrowers, Lender and Agent are parties to a Loan and Security Agreement, dated as of December 20, 2019 as amended by that certain First Amendment to Loan and Security Agreement dated April 10, 2020 and Second Amendment to Loan and
Security Agreement dated April 24, 2020 (and as further amended, restated or modified from time to time, the “Loan Agreement”).

B. Borrowers, Lender and Agent desire to modify the terms of the Loan Agreement as set forth in this Amendment. 

SECTION 1 Definitions; Interpretation. 

(a) Terms Defined in Loan Agreement. All capitalized terms used in this Amendment (including in the recitals hereof) and not otherwise
defined herein shall have the meanings assigned to them in the Loan Agreement. 
 (b) Rules of Construction. The rules of construction
that appear in the last paragraph of Section 1.1 of the Loan Agreement shall be applicable to this Amendment and are incorporated herein by this reference. 

SECTION 2 Amendments to the Loan Agreement. 

(a) The Loan Agreement shall be amended as follows effective as of the date hereof: 

(i) The following defined term is added in appropriate alphabetical order to Section 1.1 of the Loan Agreement: 

“Third Amendment Effective Date” means June 10, 2020. 

(ii) The following defined terms are added in appropriate alphabetical order to Section 1.2 of the Loan Agreement:

  

					
	 End of Term Charge I
	  	 	2.6	 
	 End of Term Charge II
	  	 	2.6	 
	 Receipt Notice Date
	  	 	7.18	 

 (iii) Section 2.6 of the Loan Agreement is hereby amended and
restated to read as follows: 
 “2.6 End of Term Charge. 

(a) On the earliest to occur of (i) the Term Loan Maturity Date, (ii) the date that Borrowers prepay the outstanding
Secured Obligations (other than any inchoate indemnity obligations and any other obligations which, by their terms, are to survive the termination of this Agreement) in full, or (iii) the date that the Secured Obligations become due and payable
(including without limitation, by acceleration of the Secured Obligations during an Event of Default pursuant to Section 10), Borrowers shall pay the Lenders a charge in an amount equal to 5.25% of the aggregate original principal amount of the
Term Loan Advances made hereunder, provided that in the event of a partial prepayment the Term Loan, Borrowers shall pay, together with any such prepayment, a charge equal to 5.25% of the principal amount being prepaid, and upon the repayment in
full of all Secured Obligations (other than inchoate indemnity obligations and any other obligations which, by their terms, are to survive the termination of this Agreement), an amount equal to 5.25% of the aggregate original principal amount of the
Term Loan Advances made hereunder less the aggregate amount of all charges paid in accordance with the foregoing in connection with all prior partial prepayments (such charges, collectively, the “End of Term Charge I”). Notwithstanding the
required payment date of such End of Term Charge I, the applicable pro rata portion of the End of Term Charge shall be deemed earned by the Lenders as of each date a Term Loan Advance is made. For the avoidance of doubt, if a payment hereunder
becomes due and payable on a day that is not a Business Day, the due date thereof shall be the immediately following Business Day. 

(b) On the earliest to occur of (i) the Term Loan Maturity Date, (ii) the date that Borrowers prepay the outstanding
Secured Obligations (other than any inchoate indemnity obligations and any other obligations which, by their terms, are to survive the termination of this Agreement) in full, or (iii) the date that the Secured Obligations become due and payable
(including without limitation, by acceleration of the Secured Obligations during an Event of Default pursuant to Section 10), Borrowers shall pay the Lenders a charge in the amount of $300,000, provided that in the event of a partial prepayment
of the Term Loan, Borrowers shall pay, together with any such prepayment, a charge equal to (A) $300,000 multiplied by (B) a percentage determined by taking (x) the principal amount being prepaid and dividing by (y) the then aggregate
principal amount of the Term Loan Advances outstanding immediately prior to such prepayment, and upon the repayment in full of all Secured Obligations (other than inchoate indemnity obligations and any other obligations which, by their terms, are to
survive the termination of this Agreement), an amount equal to $300,000 less the aggregate amount of all charges paid in accordance with the foregoing in connection with all prior partial prepayments (such charges, collectively, the “End of
Term Charge II” and, together with the “End of Term Charge I”, the “End of Term Charge”). Notwithstanding the required payment date of such End of Term Charge II, the End of Term Charge II shall be deemed earned by the
Lenders as of the Third Amendment Effective Date. For the avoidance of doubt, if a payment hereunder becomes due and payable on a day that is not a Business Day, the due date thereof shall be the immediately following Business Day.” 

  
 2 

 (iv) Section 2.9 of the Loan Agreement is hereby amended by
amending and restating the last sentence of such Section to read as follows: 
 “Each Borrower expressly acknowledges
that their agreement to pay each of the Prepayment Charge and the End of Term Charge to the Lenders as herein described was on the Closing Date and the Third Amendment Effective Date and continues to be a material inducement to the Lenders to
provide the Term Loans.” 
 (v) Section 7.18 of the Loan Agreement is hereby amended and restated to read as
follows: 
 “7.18 Financial Covenant – Minimum Cash. Borrowers shall maintain, at all times, minimum unrestricted
Cash in an amount not less than $2,500,000 in a Deposit Account subject to an Account Control Agreement in favor of Agent.    The foregoing covenant shall cease to apply upon the date (the “Receipt Notice Date”) on
which Borrowers’ delivery to Agent of evidence satisfactory to Agent in its sole discretion that Borrowers shall have received after the First Amendment Effective Date but no later than March 31, 2021, unrestricted (including, not subject
to any redemption, clawback, escrow or similar encumbrance or restriction) net cash proceeds (not including proceeds from the conversion or cancellation of Indebtedness) in an aggregate amount not less than $30,000,000, which proceeds shall be
immediately deposited in a Deposit Account or Securities Account of Borrowers subject to an Account Control Agreement in favor of Agent from (A) the sale and issuance of Equity Interests or Subordinated Indebtedness to investors and on terms
reasonably satisfactory to Agent, and/or (B) upfront payments pursuant to a business development transaction permitted under this Agreement, subject to verification by Agent (including supporting documentation requested by Agent).” 

(b) References Within Loan Agreement. Each reference in the Loan Agreement to “this Agreement” and the words
“hereof,” “herein,” “hereunder,” or words of like import, shall mean and be a reference to the Loan Agreement as amended by this Amendment. This Amendment shall be a Loan Document. 

SECTION 3 Conditions of Effectiveness. The effectiveness of Section 2 of this Amendment shall be subject
to Agent’s receipt of the following documents, in form and substance satisfactory to Agent, or, as applicable, the following conditions being met: 

(a) this Amendment, executed by Agent, Lenders and Borrowers; 

(b) an Affirmation of Guaranty, duly executed by Parent; and 

(c) payment of all of Agent’s reasonable documented
out-of-pocket costs and expenses incurred through the date hereof in connection with any of the Loan Documents. 

SECTION 4 Representations and Warranties. To induce Agent and Lender to enter into this Amendment, Borrowers hereby confirm, as of the date hereof,
(a) that the representations and warranties made by it in Section 5 of the Loan Agreement and in the other Loan Documents are true and correct in all material respects; provided, however, that such materiality
qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; (b) that there has not been and there does not exist a Material Adverse Effect, and (c) that
no Event of Default has occurred and is continuing. 

  
 3 

 SECTION 5 Audited Financials. Notwithstanding anything to the contrary in the
Loan Agreement, Lenders and Agent agree that Borrower shall be permitted to deliver to Agent the Financial Statements required under Section 7.1(c) of the Loan Agreement with respect to Borrower’s fiscal year ended December 31, 2019,
on or prior to October 31, 2020. 
 SECTION 6 Miscellaneous. 

(a) Loan Documents Otherwise Not Affected; Reaffirmation. Except as expressly amended pursuant hereto or referenced herein, the Loan
Agreement and the other Loan Documents shall remain unchanged and in full force and effect and are hereby ratified and confirmed in all respects. Lender’s and Agent’s execution and delivery of, or acceptance of, this Amendment shall not be
deemed to create a course of dealing or otherwise create any express or implied duty by any of them to provide any other or further amendments, consents or waivers in the future. Borrowers hereby reaffirm the security interest granted pursuant to
the Loan Documents and hereby reaffirm that such grant of security in the Collateral secures all Secured Obligations under the Loan Agreement and the other Loan Documents. 

(b) Release. In consideration of the agreements of Agent and Lender contained herein and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, each Borrower, on behalf of itself and its successors, assigns, and other legal representatives, hereby fully, absolutely, unconditionally and irrevocably releases, remises and forever
discharges Agent and Lender, and its successors and assigns, and its present and former shareholders, affiliates, subsidiaries, divisions, predecessors, directors, officers, attorneys, employees, agents and other representatives (Agent, Lender and
all such other persons being hereinafter referred to collectively as the “Releasees” and individually as a “Releasee”), of and from all demands, actions, causes of action, suits, covenants, contracts, controversies,
agreements, promises, sums of money, accounts, bills, reckonings, damages and any and all other claims, counterclaims, defenses, rights of set-off, demands and liabilities whatsoever of every name and nature,
known or unknown, suspected or unsuspected, both at law and in equity, which a Borrower, or any of its successors, assigns, or other legal representatives may now or hereafter own, hold, have or claim to have against the Releasees or any of them
for, upon, or by reason of any circumstance, action, cause or thing whatsoever which arises at any time on or prior to the day and date of this Amendment, including, without limitation, for or on account of, or in relation to, or in any way in
connection with the Loan Agreement, or any of the other Loan Documents or transactions thereunder or related thereto. Each Borrower waives the provisions of California Civil Code section 1542, which states: 

A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS THAT THE CREDITOR OR RELEASING PARTY DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF
EXECUTING THE RELEASE AND THAT, IF KNOWN BY HIM OR HER, WOULD HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR OR RELEASED PARTY. 

  
 4 

 Each Borrower understands, acknowledges and agrees that the release set forth above may be pleaded as a full
and complete defense and may be used as a basis for an injunction against any action, suit or other proceeding which may be instituted, prosecuted or attempted in breach of the provisions of such release. Each Borrower agrees that no fact, event,
circumstance, evidence or transaction which could now be asserted or which may hereafter be discovered shall affect in any manner the final, absolute and unconditional nature of the release set forth above. The provisions of this section shall
survive payment in full of the Secured Obligations, full performance of all the terms of this Amendment and the other Loan Documents. 
 (c)
Acknowledgement; Waiver. Agent acknowledges that it is not aware of any Event of Default existing as of the date of this Amendment. Upon the Receipt Notice Date, each Event of Default then existing shall be, without any further action of any
party hereto, fully and irrevocably waived, forgiven, cancelled, terminated and of no further force or effect. 
 (d) No Reliance.
Each Borrower hereby acknowledges and confirms to Agent and Lender that such Borrower is executing this Amendment on the basis of its own investigation and for its own reasons without reliance upon any agreement, representation, understanding or
communication by or on behalf of any other Person. 
 (e) Costs and Expenses. Each Borrower agrees to pay to Agent the date hereof the
reasonable documented out-of-pocket costs and expenses of Agent and Lender party hereto, and the reasonable documented out-of-pocket fees and disbursements of counsel to Agent and Lender party hereto in connection with the negotiation, preparation, execution and delivery of this Amendment and any other documents to be
delivered in connection herewith on the date hereof. 
 (f) Binding Effect. This Amendment binds and is for the benefit of the
successors and permitted assigns of each party. 
 (g) Governing Law. This Amendment and the other Loan Documents shall be governed
by, and construed and enforced in accordance with, the laws of the State of California, excluding conflict of laws principles that would cause the application of laws of any other jurisdiction. 

(h) Complete Agreement; Amendments. This Amendment and the Loan Documents represent the entire agreement about this subject matter and
supersede prior negotiations or agreements with respect to such subject matter. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Amendment and the Loan Documents
merge into this Amendment and the Loan Documents. 
 (i) Severability of Provisions. Each provision of this Amendment is severable
from every other provision in determining the enforceability of any provision. 
 (j) Counterparts. This Amendment may be executed in
any number of counterparts and by different parties on separate counterparts, each of which, when executed and delivered, is an original, and all taken together, constitute one Amendment. Delivery of an executed counterpart of a signature page of
this Amendment by facsimile, portable document format (.pdf) or other electronic transmission will be as effective as delivery of a manually executed counterpart hereof. 

  
 5 

 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 6 

 [SIGNATURE PAGE TO THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment, as of the date first above written. 

 

			
	BORROWER:
	
	YUMANITY THERAPEUTICS, INC.
		
	Signature:	 	 /s/ Paulash Mohsen

	Print Name:	 	Paulash Mohsen
	Title:	 	Chief Business Officer

 [SIGNATURE PAGE TO THIRD AMENDMENT TO LOAN AND SECURITY AGREEMENT] 

 

			
	AGENT:
	
	HERCULES CAPITAL, INC.
		
	Signature:	 	 /s/ Jennifer Choe

	Print Name:	 	Jennifer Choe
	Title:	 	Associate General Counsel
	
	LENDER:
	
	HERCULES CAPITAL FUNDING TRUST 2019-1
		
	Signature:	 	 /s/ Jennifer Choe

	Print Name:	 	Jennifer Choe
	Title:	 	Associate General CounselEX-10.20

 Exhibit 10.20 

THIS WARRANT, AND THE SECURITIES ISSUABLE UPON THE EXERCISE OF THIS WARRANT, HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED, OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL (WHICH MAY BE
COMPANY COUNSEL) REASONABLY SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT, OR ANY APPLICABLE STATE SECURITIES LAWS. 

WARRANT AGREEMENT 
 To
Purchase Preferred Units of 
 YUMANITY HOLDINGS, LLC 

Dated as of December 20, 2019 (the “Effective Date”) 

WHEREAS, YUMANITY THERAPEUTICS, INC., a Delaware corporation, has entered into a Loan and Security Agreement of even date herewith (as
amended, restated, supplemented or otherwise modified from time to time, the “Loan Agreement”) with Hercules Capital, Inc., a Maryland corporation, in its capacity as administrative and collateral agent, and the lenders parties
thereto; and 
 WHEREAS, it is a condition to the Loan Agreement that the Company (as defined below) grant to Hercules Capital, Inc. (the
“Warrantholder”), in consideration for, among other things, the issue price set forth in Section 11.21 of the Loan Agreement and the financial accommodations provided for in the Loan Agreement, the right to purchase Preferred
Units (as defined below) pursuant to this Warrant Agreement (as amended, restated, supplemented or otherwise modified from time to time, this “Agreement”). 

NOW, THEREFORE, in consideration of the Warrantholder executing and delivering the Loan Agreement and providing the financial accommodations
contemplated therein, and in consideration of the mutual covenants and agreements contained herein, the Company and the Warrantholder agree as follows: 

SECTION 1. GRANT OF THE RIGHT TO PURCHASE PREFERRED UNITS. 

For value received, the Company hereby grants to the Warrantholder, and the Warrantholder is entitled, upon the terms and subject to the
conditions hereinafter set forth, to subscribe for and purchase, from the Company, an aggregate number of Preferred Units equal to the quotient derived by dividing (a) the Warrant Coverage (as defined below) by (b) the Exercise Price (as
defined below). The Exercise Price of such units is subject to adjustment as provided in Section 8. As of the Effective Date, the purchase rights set forth in this Agreement are exercisable by the Warrantholder for 34,946
Class B Preferred Units of the Company. 
 As used herein, the following terms shall have the following meanings: 

“Company” means Yumanity Holdings, LLC, a Delaware limited liability company, and any successor or surviving
entity that assumes the obligations of the Company under this Agreement pursuant to Section 8(a). 

“Equity Round” means any non-public offering of equity securities by
the Company, after the Effective Date but prior to the consummation of an Initial Public Offering in a transaction or series of related transactions principally for equity financing purposes in which the cash is received by the Company and/or debt
of the Company is cancelled or converted in exchange for equity securities of the Company, provided that “Equity Round” shall not include additional closings pursuant to which the Company issues additional Class B Preferred Units.

  
 1 

 “Exercise Price” means (a) if Preferred Units means
Class B Preferred Units, $8.37 per unit, or (b) if Preferred Units means Next Round Units, the lowest price per unit of Next Round Units paid by investors in the Next Round, or, if less, the lowest effective conversion price per unit at
which any convertible notes or similar convertible instruments converted to Next Round Units, in each case subject to adjustment pursuant to Section 8. 

“Initial Public Offering” means the initial underwritten public offering of the common equity of the Company
(or any corporation resulting from one or more reorganization transactions effected prior to such offering, including as contemplated by Section 10.08 of the Operating Agreement) pursuant to a registration statement under the Securities Act,
which public offering has been declared effective by the SEC. 
 “Merger Event” means any of the following:

 (a) a sale, lease, exclusive license or other transfer of all or substantially all assets of the Company; 

(b) any merger or consolidation involving the Company in which the Company is not the surviving entity, or in which the Company’s
outstanding equity interests are otherwise converted into or exchanged for equity interests, other securities or property of another entity; or 

(c) any merger (including a reverse merger or SPAC transaction), consolidation or similar transaction as a result of which the majority of the
voting equity interests of the surviving entity remain owned or controlled by holders that were holders of equity interests of the Company (an “Alternative Merger Event”). 

“Next Round” means the next Equity Round in which the Company issues and sells preferred units and any
options, warrants, rights or other securities that are exercisable, convertible or exchangeable into, or otherwise provide the right to purchase or acquire preferred units for aggregate gross cash proceeds of at least $10,000,000. 

“Next Round Units” means, upon the closing of the Next Round, the class and series of the preferred units of
the Company and any options, warrants, rights or other securities that are exercisable, convertible or exchangeable into, or otherwise provide the right to purchase or acquire preferred units issued in the Next Round, and, to the extent provided in
Sections 8(a) and (b), any other equity interests into or for which such Next Round Units may be converted or exchanged. 

“Operating Agreement” means that certain Fourth Amended and Restated Operating Agreement of the Company, dated
as of December 5, 2018, as amended, restated, supplemented or otherwise modified from time to time. 

“Organizational Documents” means the Company’s Certificate of Formation, Operating Agreement or other
constitutional document, as amended, restated, supplemented or otherwise modified from time to time. 
 “Preferred
Units” means, at the election of the Warrantholder, (A) the Class B Preferred Units of the Company or (B) the Next Round Units, and, to the extent provided in Sections 8(a) and
(b), any other equity interests into or for which such Preferred Units may be converted or exchanged. 

“Purchase Price” means, with respect to any exercise of this Agreement, an amount equal to the Exercise Price
as of the relevant time multiplied by the number of Preferred Units requested to be exercised under this Agreement pursuant to such exercise. 

“Securities Act” means the Securities Act of 1933, as amended. 

“Warrant Coverage” means an amount equal to 1.95% of the aggregate original principal amount of the Term Loan
Advances (as defined in the Loan Agreement) made pursuant to the Loan Agreement. 
 “Warrantholder” has the
meaning set forth in the preamble of this Agreement. 

  
 2 

 Additionally, “units” as used herein, refers generally to limited liability
company interests in the Company, whether such interests be styled as units, percentage interests, shares or otherwise in the Operating Agreement. 

SECTION 2. TERM OF THE WARRANT. 

Except as otherwise provided for herein, the term of this Agreement and the right to purchase Preferred Units as granted herein shall commence
on the Effective Date and shall be exercisable for a period ending ten (10) years from the Effective Date. 
 SECTION 3. EXERCISE OF
THE PURCHASE RIGHTS. 
 (a) Exercise. The purchase rights set forth in this Agreement are exercisable by the Warrantholder, in
whole or in part, at any time, or from time to time, prior to the expiration of the term set forth in Section 2, by tendering to the Company at its principal office a notice of exercise in the form attached hereto as
Exhibit I (the “Notice of Exercise”), duly completed and executed. Promptly upon receipt of the Notice of Exercise and the payment of the Purchase Price in accordance with the terms set forth below, and in
no event later than three (3) days thereafter, the Company shall issue to the Warrantholder a certificate for the number of Preferred Units purchased and shall execute the acknowledgment of exercise in the form attached hereto as
Exhibit II (the “Acknowledgment of Exercise”) indicating the number of Preferred Units which remain subject to future purchases, if any. If the applicable Preferred Units are not then certificated by the
Company, the Company will deliver to Warrantholder such evidence of the issuance of such Preferred Units to Warrantholder as required or permitted under the Operating Agreement or, if there be none, such evidence as Warrantholder may reasonably
request. 
 (b) The Purchase Price may be paid at the Warrantholder’s election either (i) by cash or check, or (ii) by
surrender of all or a portion of the Warrant for Preferred Units to be exercised under this Agreement and, if applicable, an amended Agreement representing the remaining number of units purchasable hereunder, as determined below (“Net
Issuance”). If the Warrantholder elects Net Issuance, the Company will issue Preferred Units in accordance with the following formula: 

X = Y(A-B) 

A 
 Where: X =
the number of Preferred Units to be issued to the Warrantholder. 
  

	 	Y	 = the number of Preferred Units requested to be exercised under this Agreement. 

 

	 	A	 = the current fair market value of one (1) Preferred Unit at the time of issuance of such Preferred Units.

  

	 	B	 = the Exercise Price. 

For purposes of the above calculation, current fair market value of Preferred Units shall mean with respect to each Preferred Unit: 

(i) if the exercise is in connection with an Initial Public Offering, and if the Company’s registration statement relating
to such Initial Public Offering has been declared effective by the Securities and Exchange Commission (the “SEC”), then the fair market value per unit shall be the initial “Price to Public” of the common equity interests
specified in the final prospectus with respect to the offering; 
 (ii) the exercise is after, and not in connection with an
Initial Public Offering, and: 
 (A) if the common equity interests are then traded on a securities exchange, the fair
market value shall be deemed to be the prior day closing price before the day the current fair market value of the securities is being determined; or 

  
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 (B) if the Preferred Units are traded or quoted over-the-counter, the fair market value shall be deemed to be the prior day closing bid and asked price quoted on the NASDAQ system (or similar system) before the day the
current fair market value of the securities is being determined; 
 (iii) if at the Preferred Units are not listed on any securities
exchange or quoted in the NASDAQ National Market or the over-the-counter market, the current fair market value of each Preferred Unit shall be the highest price per unit
which the Company could obtain from a willing buyer (not a current employee or director) for a Preferred Unit sold by the Company, as determined in good faith by its Board of Directors, unless the Company shall become subject to a Merger Event, in
which case the fair market value of a Preferred Unit shall be deemed to be the value received by each holders of a Preferred Unit pursuant to such Merger Event. 

Upon partial exercise by either cash or Net Issuance, the Company shall promptly issue an amended Agreement representing the remaining number
of units purchasable hereunder. All other terms and conditions of such amended Agreement shall be identical to those units herein, including, but not limited to the Effective Date hereof. 

(c) Exercise Prior to Expiration. To the extent this Agreement is not previously exercised as to all Preferred Units subject hereto, and
if the fair market value of one Preferred Unit is greater than the Exercise Price then in effect, this Agreement shall be deemed automatically exercised pursuant to Section 3(a) (even if not surrendered) immediately before
its expiration. For purposes of such automatic exercise, the fair market value of one Preferred Unit upon such expiration shall be determined pursuant to Section 3(a). To the extent this Agreement or any portion thereof is
deemed automatically exercised pursuant to this Section 3(c), the Company agrees to promptly notify the Warrantholder of the number of Preferred Units, if any, the Warrantholder is to receive by reason of such
automatic exercise. 
 SECTION 4. RESERVATION OF UNITS. 

During the term of this Agreement, the Company will at all times have authorized and reserved a sufficient number of its Preferred Units to
provide for the exercise of the rights to purchase Preferred Units as provided for herein. 
 SECTION 5. NO FRACTIONAL UNIT. 

No fractional unit shall be issued upon the exercise of this Agreement, but in lieu of such fractional units the Company shall make a cash
payment therefor upon the basis of the then fair market value of one Preferred Unit. 
 SECTION 6. NO RIGHTS AS MEMBER. 

This Agreement does not entitle the Warrantholder to any voting rights or other rights as a member of the Company prior to the exercise of this
Agreement. Upon exercise of this Agreement, the Company agrees that the Warrantholder shall be admitted as a Member (as defined in the Operating Agreement) under the Operating Agreement with respect to the Preferred Units issued upon such exercise
automatically and without any further action by any person, and Warrantholder and such Preferred Units shall, subject to the provisions of Section 12 below, thereupon be subject to and bound by the Operating Agreement.
Warrantholder shall execute and deliver a counterpart signature page, joinder agreement, instrument of accession or similar instrument to the Operating Agreement, in form and substance reasonably acceptable to the Company and Warrantholder, promptly
upon the Company’s request following exercise hereof. 
 SECTION 7. WARRANTHOLDER REGISTRY. 

The Company shall maintain a registry showing the name and address of the registered holder of this Agreement. The Warrantholder’s initial
address, for purposes of such registry, is set forth below the Warrantholder’s signature on this Agreement. The Warrantholder may change such address by giving written notice of such changed address to the Company. 

  
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 SECTION 8. ADJUSTMENT RIGHTS. 

The Exercise Price and the number of Preferred Units purchasable hereunder are subject to adjustment, as follows: 

(a) Merger Event. If at any time there shall be a Merger Event, then, as a part of such Merger Event, lawful provision shall be made so
that the Warrantholder shall thereafter be entitled to receive, upon exercise of this Agreement, the number of Preferred Units or other securities or property (collectively, “Reference Property”) that the Warrantholder would have
received in connection with such Merger Event if Warrantholder had exercised this Agreement immediately prior to the Merger Event. In any such case, appropriate adjustment (as determined in good faith by the Company’s Board of Directors and
reasonably acceptable to the Warrantholder) shall be made in the application of the provisions of this Agreement with respect to the rights and interests of the Warrantholder after the Merger Event to the end that the provisions of this Agreement
(including adjustments of the Exercise Price, the ability of the Warrantholder to elect the class and series of Preferred Units as set forth in the definition thereof, and adjustments to ensure that the provisions of this
Section 8 shall thereafter be applicable, as nearly as possible, to the purchase rights under this Agreement in relation to any Reference Property thereafter acquirable upon exercise of such purchase rights) shall continue
to be applicable in their entirety, and to the greatest extent possible. Without limiting the foregoing, in connection with any Merger Event, upon the closing thereof, the successor or surviving entity shall assume the obligations of this Agreement;
provided that the foregoing assumption requirement shall not apply if (i) the consideration to be paid for or in respect of the outstanding Preferred Units in such Merger Event consists solely of cash and/or readily marketable securities and
(ii) such Merger Event is not an Alternative Merger Event. In connection with a Merger Event and upon the Warrantholder’s written election to the Company, the Company shall cause this Agreement to be exchanged for the consideration that
the Warrantholder would have received if the Warrantholder had chosen to exercise its right to have units issued pursuant to the Net Issuance provisions of this Agreement without actually exercising such right, acquiring such units and exchanging
such units for such consideration. The provisions of this Section 8(a) shall similarly apply to successive Merger Events. In the event the Warrantholder elects not to exercise its right to purchase units pursuant to
this Agreement in connection with a Merger Event consisting solely of cash and/or readily marketable securities and that is not an Alternative Merger Event, then this Agreement will expire immediately upon the consummation of such Merger Event. 

(b) Reclassification of Units. Except for Merger Events subject to Section 8(a) and
Section 8(f), if the Company at any time shall, by combination, reclassification, exchange or subdivision of securities or otherwise, change any of the securities as to which purchase rights under this Agreement exist into
the same or a different number of securities of any other class or classes, this Agreement shall thereafter represent the right to acquire such number and kind of securities as would have been issuable as the result of such change with respect to
the securities which were subject to the purchase rights under this Agreement immediately prior to such combination, reclassification, exchange, subdivision or other change; provided to the extent the Warrantholder has the right to elect to receive
upon exercise either Class B Preferred Units or Next Round Units, the adjustment under this clause (b) shall apply solely to the class and series of preferred units that has been so combined, reclassified,
exchanged or subdivided and shall not impair the Warrantholder’s right to elect to exercise the purchase rights for any other class or series of preferred units. The provisions of this Section 8(b) shall similarly
apply to any successive combination, reclassification, exchange, subdivision or other change. 
 (c) Subdivision or Combination of
Units. If the Company at any time shall combine or subdivide its Preferred Units, (i) in the case of a subdivision, the Exercise Price shall be proportionately decreased and the number of Preferred Units issuable hereunder shall be
proportionately increased, or (ii) in the case of a combination, the Exercise Price shall be proportionately increased and the number of Preferred Units issuable hereunder shall be proportionately decreased. 

(d) Dividends. If the Company at any time while this Agreement is outstanding and unexpired shall: 

(i) pay a dividend or distribution with respect to the Preferred Units payable in Preferred Units, then the Exercise Price shall be adjusted,
from and after the date of determination of holders entitled to receive such dividend or distribution, to that price determined by multiplying the Exercise Price in effect immediately prior to such date of determination by a fraction (A) the
numerator of which shall be the total number of Preferred Units outstanding immediately prior to such dividend or distribution, and (B) the denominator of which shall be the total number of Preferred Units outstanding immediately after such
dividend or distribution; or 

  
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 (ii) make any other distribution with respect to Preferred Units, except for a distribution
of cash upon the outstanding units of a class of equity interests made solely for the purpose of permitting the holders thereof to satisfy their respective federal and state tax obligations in respect of the taxable income of the Company, or any
distribution specifically provided for in any other clause of this Section 8, then, in each such case, provision shall be made by the Company such that the Warrantholder shall receive upon exercise or conversion of
this Agreement a proportionate share of any such distribution as though it were the holder of the Preferred Units as of the record date fixed for the determination of the members of the Company entitled to receive such distribution. 

(e) Antidilution Rights. Additional antidilution rights applicable to the Preferred Units purchasable hereunder are as set forth in the
Organizational Documents and shall be applicable with respect to the Preferred Units issuable hereunder. The Company shall promptly provide the Warrantholder with any restatement, amendment, modification or waiver of the Organizational Documents;
provided, that no such amendment, modification or waiver shall impair or reduce the antidilution rights applicable to the Preferred Units as of the date hereof unless such amendment, modification or waiver affects the rights of the
Warrantholder with respect to the Preferred Units in the same manner as it affects all other holders of Preferred Units. The Company shall provide the Warrantholder with prior written notice of any issuance of its units or other equity security to
occur after the Effective Date of this Agreement, which notice shall include (a) the price at which such equity interest is to be sold, (b) the number of equity interests to be issued, and (c) such other information as necessary for
the Warrantholder to determine if a dilutive event has occurred. For the avoidance of doubt, there shall be no duplicate anti-dilution adjustment pursuant to this subsection (e), the forgoing
subsection (d) and the Organizational Documents. 
 (f) Notice of Adjustments. If: (i) the Company
shall declare any dividend or distribution upon its Preferred Units, whether in units, cash, property or other securities; (ii) there shall be any Merger Event; (iii) there shall be an Initial Public Offering; (iii) the Company shall
sell, lease, license or otherwise transfer all or substantially all of its assets; or (iv) there shall be any reorganization, voluntary dissolution, liquidation or winding up of the Company; then, in connection with each such event, the Company
shall send to the Warrantholder: (A) at least thirty (30) days’ prior written notice of the date on which the books of the Company shall close or a record shall be taken for such dividend, distribution, subscription rights (specifying
the date on which the holders of Preferred Units shall be entitled thereto) or for determining rights to vote in respect of such Merger Event, reorganization, dissolution, liquidation or winding up; (B) in the case of any such Merger Event,
sale, lease, license or other transfer of all or substantially all assets, reorganization, dissolution, liquidation or winding up, at least thirty (30) days’ prior written notice of the date when the same shall take place (and specifying
the date on which the holders of Preferred Units shall be entitled to exchange their Preferred Units for securities or other property deliverable upon such Merger Event, reorganization, dissolution, liquidation or winding up); and (C) in the
case of an Initial Public Offering, the Company shall give the Warrantholder at least thirty (30) days’ written notice prior to the effective date thereof. 

Each such written notice shall set forth, in reasonable detail, (i) the event requiring the notice, and (ii) if any adjustment is
required to be made, (A) the amount of such adjustment, (B) the method by which such adjustment was calculated, (C) the adjusted Exercise Price (if the Exercise Price has been adjusted), and (D) the number of units subject to
purchase hereunder after giving effect to such adjustment, and shall be given in accordance with Section 13(g) below. 

(g) Timely Notice. Failure to timely provide such notice required by Section 8(f) above shall entitle the
Warrantholder to retain the benefit of the applicable notice period notwithstanding anything to the contrary contained in any insufficient notice received by the Warrantholder. For purposes of this Section 8(g), and
notwithstanding anything to the contrary in Section 13(g), the notice period shall begin on the date the Warrantholder actually receives a written notice containing all the information required to be provided in such
Section 13(g). 
 SECTION 9. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY. 

(a) Reservation of Preferred Units. The Preferred Units issuable upon exercise of the Warrantholder’s rights has been or, in the
case of Next Round Units, will be duly and validly reserved and, when issued in accordance with the provisions of this Agreement, will be validly issued, and will be free of any taxes, liens, charges or encumbrances of any nature whatsoever;
provided, that the Preferred Units issuable pursuant to this Agreement may be subject to restrictions on transfer under state and/or federal securities laws. The Company has made available to the Warrantholder true, correct and complete
copies of its Organizational Documents. The issuance 

  
 6 

 
of certificates for Preferred Units upon exercise of this Agreement shall be made without charge to the Warrantholder for any issuance tax in respect thereof, or other cost incurred by the
Company in connection with such exercise and the related issuance of Preferred Units; provided, that the Company shall not be required to pay any tax which may be payable in respect of any transfer and the issuance and delivery of any
certificate in a name other than that of the Warrantholder. 
 (b) Due Authority. The execution and delivery by the Company of this
Agreement and the performance of all obligations of the Company hereunder, including the issuance to the Warrantholder of the right to acquire the Preferred Units, have been duly authorized by all necessary action on the part of the Company. This
Agreement: (i) does not violate the Organizational Documents; (ii) does not contravene any law or governmental rule, regulation or order applicable to the Company; (iii) does not give rise to any right of participation or similar
right, except for any such right, which has been waived in writing, a copy of such waiver having been provided to the Warrantholder as of the date of exercise; and (iv) does not and will not contravene any provision of, or constitute a default
under, any indenture, mortgage, contract or other instrument to which the Company is a party or by which it is bound. This Agreement constitutes a legal, valid and binding agreement of the Company, enforceable in accordance with its terms. 

(c) Consents and Approvals. No consent or approval of, giving of notice to, registration with, or taking of any other action in respect
of any state, federal or other governmental authority or agency is required with respect to the execution, delivery and performance by the Company of its obligations under this Agreement, except for the filing of notices pursuant to Regulation D
under the Securities Act and any filing required by applicable state securities law, which filings will be effective by the time required thereby. 

(d) Issued Securities. All issued and outstanding units or other equity interests of the Company have been duly authorized and validly
issued. All outstanding units and any other equity interests were issued in full compliance with all federal and state securities laws. In addition, as of the date immediately preceding the date of this Agreement: 

(i) The authorized capital of the Company consists of (A) 15,492,000 Common Units, of which 10,259,344 units are issued and outstanding,
of which 9,909,344 are issued and outstanding Incentive Units and (B) 17,515,738 Preferred Units, of which 8,555,165 are designated Class A Preferred Units, 8,075,629 of which are issued and outstanding, and 8,960,573 Class B
Preferred Units, of which 4,315,472 units are issued and outstanding. 
 (ii) The Company has reserved 4,822,375 Common Units for issuance
under the Company’s 2018 Unit Option and Grant Plan, of which 3,873,621 options to purchase Common Units have been granted and are currently outstanding. There are no options, warrants, conversion privileges or other rights presently
outstanding to purchase or otherwise acquire any authorized but unissued units of the Company except as set forth on the capitalization table attached hereto as Appendix I. The Company has no outstanding loans to any employee, officer or
director of the Company, and the Company agrees not to enter into any such loan or otherwise guarantee the payment of any loan made to an employee, officer or director by a third party. 

(iii) No holder of units of the Company has preemptive rights with respect to the issuance of this Agreement. 

(e) Registration Rights. The Company agrees that any common equity issued and issuable upon conversion of the Preferred Units (including
after a reorganization transactions effected prior to such offering, including as contemplated by Section 10.08 of the Operating Agreement, shall have the “Piggyback,” and S-3 registration
rights pursuant to and as set forth in the Registration Rights Agreement in the form attached to the Operating Agreement or similar agreement (the “Registration Rights Agreement”) on a pari passu basis with the holders of
outstanding Preferred Units who are parties thereto. The provisions set forth in the Registration Rights Agreement or similar agreement relating to such registration rights in the form attached to the Operating Agreement as of the Effective Date may
not be amended, modified or waived without the prior written consent of the Warrantholder unless such amendment, modification or waiver affects the rights associated with the Preferred Units issued and issuable upon exercise hereof in the same
manner as such amendment, modification, or waiver affects the rights associated with all outstanding Preferred Units whose holders are parties thereto. 

  
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 (f) Other Commitments to Register Securities. Except as set forth in this Agreement
or the Operating Agreement, the Company is not, pursuant to the terms of any other agreement currently in existence, under any obligation to register under the Securities Act any of its presently outstanding equity interests or any of its securities
which may hereafter be issued. 
 (g) Exempt Transaction. Subject to the accuracy of the Warrantholder’s representations in
Section 10, the issuance of the Preferred Units upon exercise of this Agreement will constitute a transaction exempt from (i) the registration requirements of Section 5 of the Securities Act, in reliance upon
Section 4(a)(2) thereof, and (ii) the qualification requirements of the applicable state securities laws. 
 (h) Compliance
with Rule 144. If the Warrantholder proposes to sell Preferred Units issuable upon the exercise of this Agreement in compliance with Rule 144 promulgated by the SEC, then, upon the Warrantholder’s written request to the Company, the Company
shall furnish to the Warrantholder, within ten days after receipt of such request, a written statement confirming the Company’s compliance with the filing requirements of the SEC as set forth in such Rule, as such Rule may be amended from time
to time. 
 (i) Information Rights. During the term of this Agreement, the Warrantholder shall be entitled to the information rights
contained in Section 7.1 of the Loan Agreement, and Section 7.1 of the Loan Agreement is hereby incorporated into this Agreement by this reference as though fully set forth herein, provided,
however, that the Company shall not be required to deliver a Compliance Certificate once all Indebtedness (as defined in the Loan Agreement) owed by the Company to the Warrantholder has been repaid. 

SECTION 10. REPRESENTATIONS AND COVENANTS OF THE WARRANTHOLDER. 

This Agreement has been entered into by the Company in reliance upon the following representations and covenants of the Warrantholder: 

(a) Investment Purpose. The right to acquire Preferred Units is being acquired for investment and not with a view to the sale or
distribution of any part thereof, and the Warrantholder has no present intention of selling or engaging in any public distribution of such rights or the Preferred Units except pursuant to an effective registration statement or an exemption from the
registration requirements of the Securities Act. 
 (b) Private Issue. The Warrantholder understands (i) that the Preferred Units
issuable upon exercise of this Agreement is not registered under the Securities Act or qualified under applicable state securities laws on the ground that the issuance contemplated by this Agreement will be exempt from the registration and
qualifications requirements thereof, and (ii) that the Company’s reliance on such exemption is predicated on the representations set forth in this Section 10. 

(c) Financial Risk. The Warrantholder has such knowledge and experience in financial and business matters as to be capable of evaluating
the merits and risks of its investment, and has the ability to bear the economic risks of its investment. 
 (d) Risk of No
Registration. The Warrantholder understands that if the Company does not register with the SEC pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or file reports pursuant to
Section 15(d) of the Exchange Act, or if a registration statement covering the securities under the Securities Act is not in effect when it desires to sell (i) the rights to purchase Preferred Units pursuant to this Agreement or
(ii) the Preferred Units issued or issuable upon exercise of the right to purchase, it may be required to hold such securities for an indefinite period. The Warrantholder also understands that any sale of (A) its rights hereunder to
purchase Preferred Units or (B) Preferred Units issued or issuable hereunder which might be made by it in reliance upon Rule 144 under the Securities Act may be made only in accordance with the terms and conditions of that Rule. 

(e) Accredited Investor. The Warrantholder is an “accredited investor” within the meaning of the Securities and Exchange Rule
501 of Regulation D, as presently in effect. 

  
 8 

 SECTION 11. TRANSFERS. 

Subject to compliance with applicable federal and state securities laws, this Agreement and all rights hereunder are transferable, in whole or
in part, without charge to the holder hereof (except for transfer taxes) upon surrender of this Agreement properly endorsed. Each taker and holder of this Agreement, by taking or holding the same, consents and agrees that this Agreement, when
endorsed in blank, shall be deemed negotiable, and that the holder hereof, when this Agreement shall have been so endorsed and its transfer recorded on the Company’s books, shall be treated by the Company and all other persons dealing with this
Agreement as the absolute owner hereof for any purpose and as the person entitled to exercise the rights represented by this Agreement. The transfer of this Agreement shall be recorded on the books of the Company upon receipt by the Company of a
notice of transfer in the form attached hereto as Exhibit III (the “Transfer Notice”), at its principal offices and the payment to the Company of all transfer taxes and other governmental charges imposed on
such transfer. Until the Company receives such Transfer Notice, the Company may treat the registered owner hereof as the owner for all purposes. 

SECTION 12. TAX TREATMENT OF WARRANT. 

(a) Application of Noncompensatory Option Treasury Regulations. The parties hereto acknowledge and agree that at the time of the
execution of this Agreement, the Company and Warrantholder intend that the Agreement be treated as a “noncompensatory option” within the meaning of Treasury Regulations Section 1.721- 2(f).
Therefore, unless and until this Agreement is exercised in accordance with its terms, the Company is taxed as a corporation under the Internal Revenue Code of 1986, as amended, or any successor statute the (“Code”) (and only as to all
periods commencing thereon or thereafter), or there is superseding authority under which the Company’s tax counsel determines in writing (and a copy thereof provided to Warrantholder) such treatment is not appropriate, or a Final Determination
(as defined below) to the contrary has been made, for federal and applicable state and local income tax purposes, the parties hereto agree to (i) treat the issuance of the Agreement as an open transaction and not as the issuance of a
partnership or membership interest in the Company, (ii) treat each Warrantholder, with respect to ownership of the Agreement, as the holder of a warrant or option exercisable for limited liability company units or interests and not as a partner
or a Member of the Company, and (iii) consistent with the regulations promulgated by the Treasury Department (“Treasury Regulations”) under the Internal Revenue Code of 1986, as amended, or any successor statute (the
“Code”) regarding noncompensatory partnership options, not allocate any profits or losses or other items of income, gain, deduction, loss or credit to a Warrantholder of this Agreement with respect to this Agreement or the limited
liability company interests issuable on exercise hereof prior to the exercise of this Agreement. The parties shall file all tax returns and information reports in a manner consistent with the foregoing, except to the extent otherwise required by the
adoption of any superseding authority under which the Company’s tax counsel determines in writing (and a copy thereof provided to Warrantholder) such treatment is not appropriate or a Final Determination. To the extent the Company, after
consultation with its tax counsel, determines that it is required to make any disclosure regarding the treatment of this Agreement described above under Code Section 6662 or otherwise on its tax returns or other tax filings, the Company shall
promptly notify Warrantholder and, prior to filing, give Warrantholder and its agents and representatives an opportunity to review and comment on any such disclosure. For purposes of this Section 12, “Final
Determination” means, with respect to any issue, (x) a decision, judgment, decree or other order by any court of competent jurisdiction, which decision, judgment, decree or other order has become final and not subject to further
appeal, (y) a closing agreement entered into under Code Section 7121 or any other binding settlement agreement entered into in connection with or in contemplation of an administrative or judicial proceeding, or (z) the completion of
the highest level of administrative proceedings if a judicial contest is not or is no longer available. 
 (b) Exercise of Warrant.
Upon exercise of this Agreement, the parties agree, with respect to all periods prior to the date (if any) on which the Company began to be taxed as a corporation, to treat the exercise of this Agreement consistently with applicable Treasury
Regulations, including, without limitation, to the extent allowed thereunder (i) establishing an initial Capital Account (as defined in the Operating Agreement) for Warrantholder equal to the consideration paid or deemed paid to the Company for
the issuance of this Agreement plus the fair market value of any property contributed to the Company upon exercise of this Agreement, if any, (ii) revaluing all Company assets and property immediately following exercise of this Agreement and
allocating built-in gain or loss in the Company’s assets and property to Warrantholder and then to the historic Members as contemplated under the Treasury Regulations and, to the extent such allocation is
insufficient to adjust Warrantholder’s Capital Account in accordance with its right to share in capital, shifting capital between Warrantholder and the historic Members as contemplated under the Treasury Regulations, and (iii) making
associated Code Section 704(c) allocations, including remedial allocations under Section 1.704-3(d) of the Treasury Regulations. 

  
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 (c) Effect on Tax Distributions. For purposes of determining the amount of any tax
distribution made under the Operating Agreement to an exercising Warrantholder who becomes a Member, any Code Section 704(c) allocations or “corrective allocations” made as contemplated in Section 12(b) to
such Member shall be treated as taxable income allocated to such Member by the Company, a tax distribution shall be made with respect to such allocations, and any and all tax distributions to an exercising Warrantholder (whether made pursuant to
this Section 12(c) or the Operating Agreement) shall be computed in accordance with the Operating Agreement. If, pursuant to a Final Determination or otherwise, Warrantholder is allocated taxable income with respect to this
Agreement in respect of any period prior to exercise hereof and such Warrantholder has not otherwise received a tax distribution under the Operating Agreement with respect to such amounts, and/or if Warrantholder is with respect to any period prior
to exercise hereof treated by federal or state tax authorities as a Member and the Units issuable upon exercise hereof treated as outstanding pursuant to Treasury Regulation 1.761-3 and/or any corresponding
applicable state tax regulation, then promptly upon making such required allocation of taxable income to Warrantholder or receipt of Warrantholder’s written notice of such Final Determination, as applicable, the Company shall indemnify
Warrantholder from and against, and shall either make a payment to all appropriate taxing authorities (if required) in satisfaction of, or shall make a distribution of cash to Warrantholder to cover, such Warrantholder’s aggregate federal and
state tax liabilities in respect of such amount of taxable income or treatment (which shall include, without limitation, (x) all interest, penalties and fines thereon, (y) and all penalties, fines and interest thereon, if any, in respect
of Warrantholder’s liability for failure to file tax returns in all applicable jurisdictions with respect to such periods for which such taxing authorities treat Warrantholder as the owner of the Units, and (z) all amounts necessary for
Warrantholder to satisfy its aggregate federal and state tax liabilities in respect of such Company payments or distributions to Warrantholder), and such payment or distribution shall be made prior to making any other subsequent distributions under
the Operating Agreement. Notwithstanding the foregoing, this Section 12(c) shall not apply with respect to income to Warrantholder from its sale or other disposition of this Agreement or of any securities issued on exercise
hereof. 
 (d) Conversion Liability. Notwithstanding anything to the contrary in this Section 12, the
Company’s obligations under Section 12(c) above shall not apply to any tax liability or obligation of Warrantholder under the Code or Treasury Regulations (or applicable state tax laws or regulations) arising upon and
by reason of any Company (or any such successor entity’s) reorganization, conversion, tax election or the like following which the Company (or any successor entity) is taxed as a corporation under the Code. 

(e) Survival. The provisions of this Section 12 shall survive (i) the exercise of this Agreement and the
sale or other disposition by Warrantholder of the Units, and (ii) the expiration or earlier termination of this Agreement. 
 SECTION
13. MISCELLANEOUS. 
 (a) Effective Date. The provisions of this Agreement shall be construed and shall be given effect in all
respects as if it had been executed and delivered by the Company on the date hereof. This Agreement shall be binding upon any successors or assigns of the Company. 

(b) Remedies. In the event of any default hereunder, the non-defaulting party may proceed to
protect and enforce its rights either by suit in equity and/or by action at law, including but not limited to an action for damages as a result of any such default, and/or an action for specific performance for any default where the Warrantholder
will not have an adequate remedy at law and where damages will not be readily ascertainable. The Company expressly agrees that it shall not oppose an application by the Warrantholder or any other person entitled to the benefit of this Agreement
requiring specific performance of any or all provisions hereof or enjoining the Company from continuing to commit any such breach of this Agreement. 

(c) No Impairment of Rights. The Company will not, by amendment of its Organizational Documents or through any other means, avoid or
seek to avoid the observance or performance of any of the terms of this Agreement, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such actions as may be necessary or appropriate in order to
protect the rights of the Warrantholder against impairment. 

  
 10 

 (d) Additional Documents. The Company, upon execution of this Agreement, shall
provide the Warrantholder with certified resolutions with respect to the representations, warranties and covenants set forth in Sections 9(a) through 9(d), 9(f) and 9(g). The Company
shall also supply documentation reasonably necessary to evaluate whether to exercise the purchase rights set forth in this Agreement, including without limitation, (i) any merger/purchase/asset sale agreement and related documents and estimated
payout allocations to each of the respective equityholders, warrant and option holders in connection with a Merger Event, (ii) the most recent capitalization tables, 409A valuations (if any), and board determination of unit value (including any
waterfall or per unit allocations provided to the unitholders), and (iii) most recent Organizational Documents. 
 (e)
Attorney’s Fees. In any litigation, arbitration or court proceeding between the Company and the Warrantholder relating hereto, the prevailing party shall be entitled to attorneys’ fees and expenses and all costs of proceedings
incurred in enforcing this Agreement. For the purposes of this Section 13(e), attorneys’ fees shall include, without limitation, fees incurred in connection with the following: (i) contempt proceedings;
(ii) discovery; (iii) any motion, proceeding or other activity of any kind in connection with an insolvency proceeding; (iv) garnishment, levy, and debtor and third party examinations; and (v) post-judgment motions and
proceedings of any kind, including without limitation any activity taken to collect or enforce any judgment. 
 (f) Severability. In
the event any one or more of the provisions of this Agreement shall for any reason be held invalid, illegal or unenforceable, the remaining provisions of this Agreement shall be unimpaired, and the invalid, illegal or unenforceable provision shall
be replaced by a mutually acceptable valid, legal and enforceable provision, which comes closest to the intention of the parties underlying the invalid, illegal or unenforceable provision. 

(g) Notices. Except as otherwise provided herein, any notice, demand, request, consent, approval, declaration, service of process or
other communication that is required, contemplated, or permitted under this Agreement or with respect to the subject matter hereof shall be in writing, and shall be deemed to have been validly served, given, delivered, and received upon the earlier
of: (i) the day of transmission by facsimile or hand delivery if transmission or delivery occurs on a business day at or before 5:00 pm in the time zone of the recipient, or, if transmission or delivery occurs on a non-business day or after such time, the first business day thereafter, or the first business day after deposit with an overnight express service or overnight mail delivery service; or (ii) the third (3rd) calendar day after deposit in the United States mails, with proper first class postage prepaid, and shall be addressed to the party to be notified as follows: 

If to the Warrantholder: 

Hercules Capital, Inc. 
 Legal
Department 
 Attention: Chief Legal Officer and Bryan Jadot; Michael Dutra 

400 Hamilton Avenue, Suite 310 

Palo Alto, CA 94301 
 Facsimile:
650-473-9194 
 Telephone: 650-289-3060 
 With a copy to (which shall not constitute notice): 

Cooley LLP 
 Attn: Cynthia Bai

 3175 Hanover Street 
 Palo
Alto, CA 94304 
 Facsimile: 650-843-5612 

Telephone: 650-849-7400 

(i) If to the Company: 

Yumanity Holdings, LLC 

Attention: Paulash Mohsen 
 790
Memorial Drive, Suite 2c 
 Cambridge, MA 02139 

Facsimile: 617-409-5202 

Telephone: 617-409-5303 

  
 11 

 With a copy to (which shall not constitute notice): 

Goodwin Procter LLP 
 100
Northern Avenue 
 Boston, MA 02210 

Attn: Stuart Cable 
 Facsimile: 617-523-1231 
 Telephone: 617-570-1322 
 or to such other address as each party may designate for itself by like notice.

 (h) Entire Agreement; Amendments. This Agreement constitutes the entire agreement and understanding of the parties hereto in
respect of the subject matter hereof, and supersedes and replaces in their entirety any prior proposals, term sheets, letters, negotiations or other documents or agreements, whether written or oral, with respect to the subject matter hereof,
including the Warrantholder’s proposal letter dated November 8, 2019. None of the terms of this Agreement may be amended except by an instrument executed by each of the parties hereto. 

(i) Headings. The various headings in this Agreement are inserted for convenience only and shall not affect the meaning or
interpretation of this Agreement or any provisions hereof. 
 (j) No Strict Construction. The parties hereto have participated jointly
in the negotiation and drafting of this Agreement. In the event an ambiguity or question of intent or interpretation arises, this Agreement shall be construed as if drafted jointly by the parties hereto and no presumption or burden of proof shall
arise favoring or disfavoring any party by virtue of the authorship of any provisions of this Agreement. 
 (k) No Waiver. No omission
or delay by the Warrantholder at any time to enforce any right or remedy reserved to it, or to require performance of any of the terms, covenants or provisions hereof by the Company at any time designated, shall be a waiver of any such right or
remedy to which the Warrantholder is entitled, nor shall it in any way affect the right of the Warrantholder to enforce such provisions thereafter. 

(l) Survival. All agreements, representations and warranties contained in this Agreement or in any document delivered pursuant hereto
shall be for the benefit of the Warrantholder and shall survive the execution and delivery of this Agreement and the expiration or other termination of this Agreement. 

(m) Governing Law. This Agreement has been negotiated and delivered to Warrantholder in the State of California, and shall have been
accepted by the Warrantholder in the State of California. Delivery of Preferred Units to the Warrantholder by the Company under this Agreement is due in the State of California. This Agreement shall be governed by, and construed and enforced in
accordance with, the laws of the State of California, excluding conflict of laws principles that would cause the application of laws of any other jurisdiction. 

(n) Consent to Jurisdiction and Venue. All judicial proceedings arising in or under or related to this Agreement may be brought in any
state or federal court of competent jurisdiction located in the State of California. By execution and delivery of this Agreement, each party hereto generally and unconditionally: (i) consents to personal jurisdiction in Santa Clara County,
State of California; (ii) waives any objection as to jurisdiction or venue in Santa Clara County, State of California; (iii) agrees not to assert any defense based on lack of jurisdiction or venue in the aforesaid courts; and
(iv) irrevocably agrees to be bound by any judgment rendered thereby in connection with this Agreement. Service of process on any party hereto in any action arising out of or relating to this Agreement shall be effective if given in accordance
with the requirements for notice set forth in Section 12(g), and shall be deemed effective and received as set forth in Section 12(g). Nothing herein shall affect the right to serve process in any other manner permitted by law or shall
limit the right of either party to bring proceedings in the courts of any other jurisdiction. 

  
 12 

 (o) Mutual Waiver of Jury Trial. Because disputes arising in connection with complex
financial transactions are most quickly and economically resolved by an experienced and expert person and the parties wish applicable state and federal laws to apply (rather than arbitration rules), the parties desire that their disputes be resolved
by a judge applying such applicable laws. EACH OF THE COMPANY AND THE WARRANTHOLDER SPECIFICALLY WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY OF ANY CAUSE OF ACTION, CLAIM, CROSS-CLAIM, COUNTERCLAIM, THIRD PARTY CLAIM OR ANY OTHER CLAIM
(COLLECTIVELY, “CLAIMS”) ASSERTED BY THE COMPANY AGAINST THE WARRANTHOLDER OR ITS ASSIGNEE OR BY THE WARRANTHOLDER OR ITS ASSIGNEE AGAINST THE COMPANY. This waiver extends to all such Claims, including Claims that involve persons other
than Company and the Warrantholder; Claims that arise out of or are in any way connected to the relationship between the Company and the Warrantholder; and any Claims for damages, breach of contract, specific performance, or any equitable or legal
relief of any kind, arising out of this Agreement. 
 (p) Judicial Reference. If the waiver of jury trial set forth above is
ineffective or unenforceable, the parties agree that all Claims shall be resolved by reference to a private judge sitting without a jury, pursuant to Code of Civil Procedure Section 638, before a mutually acceptable referee or, if the parties
cannot agree, a referee selected by the Presiding Judge of Santa Clara County, California. Such proceeding shall be conducted in Santa Clara County, California, with California rules of evidence and discovery applicable to such proceeding. 

(q) Prejudgment Relief. In the event Claims are to be resolved by arbitration, either party may seek from a court of competent
jurisdiction identified in Section 13(n), any prejudgment order, writ or other relief and have such prejudgment order, writ or other relief enforced to the fullest extent permitted by law notwithstanding that all Claims are
otherwise subject to resolution by judicial reference. 
 (r) Counterparts. This Agreement and any amendments, waivers, consents or
supplements hereto may be executed in any number of counterparts, and by different parties hereto in separate counterparts, each of which when so delivered shall be deemed an original, but all of which counterparts shall constitute but one and the
same instrument. 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 
  

  
 13 

 [SIGNATURE PAGE TO WARRANT AGREEMENT TO PURCHASE PREFERRED UNITS] 

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by its officers thereunto duly authorized as of the Effective
Date. 
  

							
		 	COMPANY:	 	YUMANITY HOLDINGS, LLC
			
		 		 	By: /s/ Richard Peters
			
		 		 	Name: Richard Peters
			
		 		 	Title: Chief Executive Officer
			
		 	WARRANTHOLDER:	 	HERCULES CAPITAL, INC.
				
		 		 	By:	  	 /s/ Jennifer Choe

		 		 	Name: Jennifer Choe
		 		 	Title: Assistant General Counsel

 EXHIBIT I 

NOTICE OF EXERCISE 
 To:
YUMANITY HOLDINGS, LLC 
  

	(1)	 The undersigned Warrantholder hereby elects to purchase [_______] Class B Preferred Units of Yumanity
Holdings, LLC, pursuant to the terms of the Warrant Agreement dated as of [            ], 2019, (the “Agreement”) between Yumanity Holdings, LLC and the Warrantholder, and
[CASH PAYMENT: tenders herewith payment of the Purchase Price in full, together with all applicable transfer taxes, if any.] [NET ISSUANCE: elects pursuant to Section 3(a) of the Agreement to effect a Net Issuance.]

  

	(2)	 Please issue a certificate or certificates representing said Class B Preferred Units in the name of the
undersigned or in such other name as is specified below. 

  

							
		 		 	  
 (Name)

			
		 		 	  
 (Address)

			
	WARRANTHOLDER:	 		 	[                                    
    ]
				
		 		 	By:	 	
                 

		 		 	Name:	 	  

		 		 	Title:	 	  

 EXHIBIT II 

ACKNOWLEDGMENT OF EXERCISE 

The undersigned [____________________________________], hereby acknowledges receipt of the “Notice of Exercise” from
[__________] to purchase [____]Class B Preferred Units of Yumanity Holdings, LLC, pursuant to the terms of the Warrant Agreement by and between Yumanity Holdings, LLC and [___________], dated as of December 20, 2019 (the
“Agreement”), and further acknowledges that [______] units remain subject to purchase under the terms of the Agreement. 
  

							
	COMPANY:	 		 	YUMANITY HOLDINGS, LLC
				
		 		 	By:	 	
                     
    

		 		 	Title:	 	  

		 		 	Date:	 	  

 EXHIBIT III 

TRANSFER NOTICE 
 (To
transfer or assign the foregoing Agreement execute this form and supply required information. Do not use this form to purchase units.) 

FOR VALUE RECEIVED, the foregoing Agreement and all rights evidenced thereby are hereby transferred and assigned to 

 

                       
                                         
                                         
                                         
                                         
              
 (Please Print) 

whose address is
                                         
                                         
                                         
              
  

                       
                                         
                                         
                                         
                                         
                  
 Dated:
                                         
                                         
                                   

Holder’s Signature:
                                         
                                         
               
 Holder’s Address:
                                         
                                         
                   

                    
                                         
                                         
                             

Signature
Guaranteed:                                       
                                         
                                         
                                         
        
 NOTE: The signature to this Transfer Notice must correspond with the name as it
appears on the face of the Agreement, without alteration or enlargement or any change whatever. Officers of corporations and those acting in a fiduciary or other representative capacity should file proper evidence of authority to assign the
foregoing Agreement.

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