EX-10.3





 Exhibit 10.3 

Deciphera Pharmaceuticals, LLC 

Employee Confidentiality, Assignment and Noncompetition Agreement 

In consideration and as a condition of the commencement of my employment by Deciphera Pharmaceuticals, LLC (including its subsidiaries and
other affiliates and its and their successors and assigns, the “Company”), I enter into this Employee Confidentiality, Assignment and Noncompetition Agreement (the “Agreement”) and agree as follows: 

1.    Proprietary Information. I agree that all information, whether or not in writing, concerning the
Company’s business, technology, business relationships or financial affairs that the Company has not released to the general public (collectively, “Proprietary Information”) and all tangible embodiments thereof are and will be
the exclusive property of the Company. By way of illustration, Proprietary Information may include information or material that has not been made generally available to the public, such as: (a) corporate information, including plans,
strategies, methods, policies, resolutions, negotiations or litigation; (b) marketing information, including strategies, methods, customer, client or business partner identities or other information about customers, clients, business
partners, prospect identities or other information about prospects, or market analyses or projections; (c) financial information, including cost and performance data, debt arrangements, equity structure, investors and holdings,
purchasing and sales data and price lists; (d) operational and technological or scientific information, including plans, specifications, manuals, forms, templates, software, pre-clinical and
clinical testing data and strategies, research and development strategies, designs, methods, procedures, formulae, data, reports, discoveries, inventions, improvements, concepts, ideas, processes, formulations, and other Developments (as defined
below), know-how and trade secrets, and information regarding suppliers; and (e) personnel information, including personnel lists, reporting or organizational structure, resumes, personnel data,
performance evaluations and termination arrangements or documents. Proprietary Information also includes information received in confidence by the Company from its customers, clients, suppliers, distributers, business partners or other third
parties. 
 2.    Recognition of Company’s Rights. I will not, at any time, without the Company’s
prior written permission, either during or after my employment, disclose any Proprietary Information to anyone outside of the Company, or use or permit to be used any Proprietary Information for any purpose other than the performance of my duties as
an employee of the Company. I will cooperate with the Company and use my best efforts to prevent the unauthorized disclosure of all Proprietary Information. I will deliver to the Company all copies and other tangible embodiments of Proprietary
Information in my possession or control upon the earlier of a request by the Company or termination of my employment. 

3.    Rights of Others. I understand that the Company is now and may hereafter be subject to
nondisclosure or confidentiality agreements with third persons that require the Company to protect or refrain from use or disclosure of proprietary information. I agree to be bound by the terms of such agreements in the event I have access to such
proprietary information. I understand that the Company strictly prohibits me from using or disclosing confidential or proprietary information belonging to any other person or entity (including any employer or former employer), in connection with my
employment. In addition, I agree not to bring any confidential information belonging to any other person or entity onto Company premises or into Company workspaces, or onto Company equipment or systems. 

4.    Commitment to Company; Avoidance of Conflict of Interest. While an employee of the Company, I
will devote my full-time efforts to the Company’s business and I will not, directly or indirectly, engage in any other business activity, except as expressly authorized in writing and in advance by the Board of Directors of Deciphera
Pharmaceuticals, Inc. (the “Board”); provided that I may serve on one other board of directors with the prior approval of the Board, or engage in religious, charitable or other community activities as long as such services do not
materially interfere with my obligations or performance of my duties to the Company. I will advise the Board at such time as any activity of either the Company or another business presents me with a conflict of interest or the appearance of a
conflict of interest as an employee of the Company. I will take whatever action is requested of me by the Board to resolve any conflict or appearance of conflict which it finds to exist.  












 5.    Developments. I will make full and prompt disclosure
to the Company of all inventions, discoveries, designs, developments, methods, modifications, improvements, processes, algorithms, data, databases, computer programs, research, formulae, techniques, trade secrets, graphics or images, and audio or
visual works and other works of authorship, and other intellectual property, including works-in-process (collectively “Developments”) whether or not
patentable or copyrightable, that are created, made, conceived or reduced to practice by me (alone or jointly with others) or under my direction during the period of my employment. I acknowledge that all work performed by me is on a “work for
hire” basis, and I hereby do assign and transfer and, to the extent any such assignment cannot be made at present, will assign and transfer, to the Company and its successors and assigns all my right, title and interest in and to all
Developments that (a) relate to the business of the Company or any customer or client of, supplier to or business partner of the Company or any of the products or services being researched, developed, manufactured or sold by the Company or
which may be used with such products or services; or (b) result from tasks assigned to me by the Company; or (c) result from the use of premises or personal property (whether tangible or intangible) owned, leased or contracted for by the
Company (“Company-Related Developments”), and all related patents, patent applications, trademarks and trademark applications, copyrights and copyright applications, sui generis database rights and other
intellectual property rights in all countries and territories worldwide and under any international conventions (“Intellectual Property Rights”). 

To preclude any possible uncertainty, if there are any Developments that I have, alone or jointly with others, conceived, developed or reduced to practice
prior to the commencement of my employment with the Company that I consider to be my property or the property of third parties and that I wish to have excluded from the scope of this Agreement (“Prior Inventions”), I have set forth
on Exhibit A attached hereto a complete list of those Prior Inventions. If disclosure of any such Prior Invention would cause me to violate any prior confidentiality agreement, I understand that I am not to list such Prior Inventions in Exhibit
A but am only to disclose a cursory name for each such invention, a listing of the party(ies) to whom it belongs and the fact that full disclosure as to such inventions has not been made for that reason. If there are any patents or patent
applications in which I am named as an inventor, other than those that have been assigned to the Company (“Other Patent Rights”), I have also listed those Other Patent Rights on Exhibit A. If no such disclosure is attached, I
represent that there are no Prior Inventions or Other Patent Rights. If, in the course of my employment with the Company, I incorporate a Prior Invention into a Company product, process or machine, research or development program, or other work done
for the Company, I hereby grant to the Company a nonexclusive, royalty-free, fully paid-up, irrevocable, worldwide license (with the full right to sublicense through multiple tiers) to make, have made, modify,
use, sell, offer for sale and import such Prior Invention. Notwithstanding the foregoing, I will not incorporate, or permit to be incorporated, Prior Inventions in any Company-Related Development without the Company’s prior written consent.

 This Agreement does not obligate me to assign to the Company any Development that, in the sole judgment of the Company, reasonably exercised, is
developed entirely on my own time and does not relate to the business efforts or research and development efforts in which, during the period of my employment, the Company actually is engaged or reasonably would be engaged, and does not result from
the use of premises or equipment owned or leased by the Company. However, I will also promptly disclose to the Company any such Developments for the purpose of determining whether they qualify for such exclusion. I understand that to the extent this
Agreement is required to be construed in accordance with the laws of any state which precludes a requirement in an employee agreement to assign certain classes of inventions made by an employee, this Section 5 will be interpreted not to apply
to any invention that a court rules and/or the Company agrees falls within such classes. I also hereby waive all claims to any moral rights or other special rights that I may have or accrue in any Company-Related Developments. 

6.    Documents and Other Materials. I will keep and maintain adequate and current records of all Proprietary
Information and Company-Related Developments developed by me during my employment, which records will be available to and remain the sole property of the Company at all times. 

All files, letters, notes, memoranda, reports, records, data, sketches, drawings, notebooks, layouts, charts, quotations and proposals, specification sheets,
blueprints, models, prototypes, or other written, photographic or other tangible material containing Proprietary Information, whether created by me or others, which come into my custody or possession, are the exclusive property of the Company to be
used by me only in the performance of my duties for the Company. Any property situated on the Company’s premises and owned by the Company, including without limitation computers, disks and other storage media, filing cabinets or other work
areas, is subject to inspection by the Company at any time with or without notice. In the event of the termination of my employment for any reason, I 












 
will deliver to the Company all Company property and equipment in my possession, custody or control, including all files, letters, notes, memoranda, reports, records, data, sketches, drawings,
notebooks, layouts, charts, quotations and proposals, specification sheets, blueprints, models, prototypes, or other written, photographic or other tangible material containing Proprietary Information, and other materials of any nature pertaining to
the Proprietary Information of the Company and to my work, and will not take or keep in my possession any of the foregoing or any copies. 

7.    Enforcement of Intellectual Property Rights. I will cooperate fully with the Company, both during and
after my employment with the Company, with respect to the procurement, maintenance and enforcement of Intellectual Property Rights in Company-Related Developments. I will sign, both during and after my employment, all papers, including without
limitation copyright applications, patent applications, declarations, oaths, assignments of priority rights, and powers of attorney, which the Company may deem necessary or desirable in order to protect its rights and interests in any
Company-Related Development or Intellectual Property Rights therein. If the Company is unable, after reasonable effort, to secure my signature on any such papers, I hereby irrevocably designate and appoint each officer of the Company as my agent and
attorney-in-fact to execute any such papers on my behalf, and to take any and all actions as the Company may deem necessary or desirable in order to protect its rights
and interests in any Company-Related Development, including any Intellectual Property Rights therein. 

8.    Nonsolicitation and Noncompetition. 

In order to protect the Company’s Proprietary Information and goodwill, during my employment and for a period of: (i) one (1) year following the date
of the cessation of my employment with the Company (the “Last Date of Employment”), or (ii) two (2) years following the Last Date of Employment if I breach my fiduciary duty to the Company or if I have unlawfully taken,
physically or electronically, property belonging to the Company (in either case the “Restricted Period”): 

(a)    I shall not, directly or indirectly, in any manner, other than for the benefit of the Company, solicit or transact
any business with any of the customers or clients of the Company or any of its vendors. For purposes of this Agreement, (i) customers and clients shall include then current customers and clients to which the Company provided products or
services during the twelve months prior to the Last Date of Employment (the “One Year Lookback”) and customer or clients prospects that the Company solicited during the One Year Lookback and that I had significant contact with or
learned confidential information about in the course of my employment, and (ii) vendors shall include then current vendors and vendors that provided services to or in connection with the Company during the One Year Lookback. 

(b)    I shall not, directly or indirectly, in any manner, solicit, entice or attempt to persuade any employee or
consultant of the Company to leave the Company for any reason or otherwise participate in or facilitate the hire, directly or through another entity, of any person who is then employed or engaged by the Company. 

(c)    Unless (i) the Company terminates my employment without Cause (as defined below) or I have been laid off; or
(ii) the Company waives the restrictions upon post-employment activities set forth in this Section 8(c), then the Company shall make garden leave payments to me for the post-employment portion of the Restricted Period (but for not more
than 12 months following the end of my employment) at the rate of 50% of the highest annualized base salary paid to me by the Company within the two-year period preceding the last day of my employment
(“Garden Leave Pay”), and in exchange, I shall not directly or indirectly, whether as owner, partner, shareholder, director, manager, consultant, agent, employee, co-venturer or otherwise, anywhere in the United States/world,
provide any of the types of services that I provided to the Company during the two years that immediately preceded the Last Date of Employment, in connection with any business that develops, manufactures, offers, produces, licenses or markets any
products, or solicits, provides, or performs any services, for pre-clinical, clinical or commercial stage products or product candidates in oncology that: (i) in the case of
pre-clinical assets are focused on specific molecular targets that are identified by the Company as the primary intended molecular targets (e.g., the primary intended molecular targets of DCC-2618 would be the KIT and PDGFRa kinases) or (ii) in the case of clinical-stage or commercial assets are in active development for a particular label or indication (as defined by an active clinical protocol
or prescribing information) that the Company is actively pursuing on the Last Date of Employment or is the subject of active planning by the Company as of the Last Date of Employment. For purposes of this Agreement, and notwithstanding anything to
the contrary in any other agreement between the Company and 












 
me, “Cause” shall mean a reasonable and good faith basis for the Company to be dissatisfied with my job performance, my conduct or my behavior. I acknowledge that this covenant
is necessary because the Company’s legitimate business interests cannot be adequately protected solely by the other covenants in this Agreement. I further acknowledge and agree that any payments I receive pursuant to this Section 8(c)
shall reduce (and shall not be in addition to) any severance or separation pay that I am otherwise entitled to receive from the Company pursuant an agreement, plan or otherwise.     

9.    Nondisparagement. At all times, both during my employment with the Company and after its
termination, I shall refrain from making any statement that disparages the Company, any officer, director or employee of the Company or any product of the Company; provided that the foregoing shall not apply to (i) statements made to any
federal, state or local governmental agency or commission, (ii) testimony in any legal proceeding, (iii) statements made to my attorney or (iv) statements made in the course of my employment in the good faith belief that my statements
were made pursuant to my responsibilities for the Company. A “statement that disparages” means a statement that may reasonably be considered to be damaging to the reputation of the subject of the statement. 

10.    Government Contracts. I acknowledge that the Company may have from time to time agreements with other
persons or with the United States Government or its agencies that impose obligations or restrictions on the Company regarding inventions made during the course of work under such agreements or regarding the confidential nature of such work. I agree
to comply with any such obligations or restrictions upon the direction of the Company. In addition to the rights assigned under Section 5, I also assign to the Company (or any of its nominees) all rights that I have or acquired in any
Developments, full title to which is required to be in the United States under any contract between the Company and the United States or any of its agencies. 

11.    Prior Agreements. I hereby represent that, except as I have fully disclosed previously in writing to
the Company, I am not bound by the terms of any agreement with any previous or current employer or other party to refrain from using or disclosing any trade secret or confidential or proprietary information in the course of my employment with the
Company or to refrain from competing, directly or indirectly, with the business of such employer or any other party. I further represent that my performance of all the terms of this Agreement as an employee of the Company does not and will not
breach any agreement to keep in confidence proprietary information, knowledge or data acquired by me in confidence or in trust prior to my employment with the Company. I will not disclose to the Company or induce the Company to use any confidential
or proprietary information or material belonging to any previous employer or others. 
 12.    Remedies Upon
Breach. I understand that the restrictions contained in this Agreement are necessary for the protection of the business and goodwill of the Company and I consider them to be reasonable for such purpose. Any breach of this Agreement is
likely to cause the Company substantial and irrevocable damage and therefore, in the event of such breach, the Company, in addition to such other remedies which may be available, will be entitled to specific performance and other injunctive
relief, without the posting of a bond. I further acknowledge that a court may render an award extending the Restricted Period as one of the remedies in the event of my violation of this Agreement. 

13.    Use of Voice, Image and Likeness. I give the Company permission to use any and all of my voice, image and
likeness, with or without using my name, in connection with the products and/or services of the Company, for the purposes of advertising and promoting such products and/or services and/or the Company, and/or for other purposes deemed appropriate by
the Company in its reasonable discretion, except to the extent prohibited by law. 
 14.    No Employment
Obligation. I understand that this Agreement does not create an obligation on the Company or any other person to continue my employment. I acknowledge that, unless otherwise agreed in a formal written employment agreement
signed on behalf of the Company by an authorized officer, my employment with the Company is at will and therefore may be terminated by the Company or me at any time and for any reason, with or without cause. 

15.    Survival and Assignment by the Company. I understand that my obligations under this Agreement will
continue in accordance with its express terms regardless of any changes in my title, position, duties, salary, compensation or benefits or other terms and conditions of employment. I further understand that my obligations under this Agreement will
continue following the termination of my employment regardless of the manner of such 












 
termination and will be binding upon my heirs, executors and administrators. The Company will have the right to assign this Agreement to its affiliates, successors and assigns. I expressly
consent to be bound by the provisions of this Agreement for the benefit of the Company or any parent, subsidiary or affiliate to whose employ I may be transferred without the necessity that this Agreement be resigned at the time of such transfer.

 16.    Notice of Resignation. If I elect to resign from my employment with the Company, I agree to provide the
Company with written notification of my resignation at least two (2) weeks prior to my intended resignation date. Such notice shall include information in reasonable detail about my post-employment job duties and other business activities,
including the name and address of any subsequent employer and/or person or entity with whom or which I intend to engage in business activities during the Restricted Period and the nature of my job duties and other business activities. The Company
may elect to waive all or part of the two (2) week notice period in its sole discretion. 
 17.    Post-Employment
Notifications. During the Restricted Period, I will notify the Company of any change in my address and of each subsequent employment or business activity, including the name and address of my employer or other post-Company employment
plans and the nature of my activities. 
 18.    Disclosures During Restricted Period. I will provide
a copy of this Agreement to any person or entity with whom I may enter into a business relationship, whether as an employee, consultant, partner, coventurer or otherwise, prior to entering into such business relationship during the Restricted
Period. 
 19.    Waiver. The Company and I acknowledge and agree that the Company’s
election not to provide me with Garden Leave Pay as set forth in Section 8(c) shall be deemed a waiver of my noncompetition obligations under Section 8(c). Otherwise, no waiver of any of my obligations under this Agreement shall be
effective unless made in writing by the Company. The failure of the Company to require my performance of any term or obligation of this Agreement, or the waiver of any breach of this Agreement, shall not prevent the Company’s subsequent
enforcement of such term or obligation or be deemed a waiver of any subsequent breach. 

20.    Severability. In case any provisions (or portions thereof) contained in this Agreement shall, for any
reason, be held invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect the other provisions of this Agreement, and this Agreement shall be construed as if such invalid, illegal or
unenforceable provision had never been contained herein. If, moreover, any one or more of the provisions contained in this Agreement shall for any reason be held to be excessively broad as to duration, geographical scope, activity or subject, it
shall be construed by limiting and reducing it, so as to be enforceable to the extent compatible with the applicable law as it shall then appear. 

21.    Choice of Law and Jurisdiction. This Agreement will be deemed to be made and entered into in the
Commonwealth of Massachusetts, and will in all respects be interpreted, enforced and governed under the laws of the Commonwealth of Massachusetts. I hereby consent to personal jurisdiction of the state and federal courts situated within
Massachusetts for purposes of enforcing this Agreement, and waive any objection that I might have to personal jurisdiction or venue in those courts, provided, however, the Company and I agree that all civil actions relating to Section 8(c) of
this Agreement shall be brought in the county of Suffolk and that the superior court or the business litigation session of the superior court shall have exclusive jurisdiction. 

22.    Independence of Obligations. My obligations under this Agreement are independent of any obligation,
contractual or otherwise, the Company has to me. The Company’s breach of any such obligation shall not be a defense against the enforcement of this Agreement or otherwise limit my obligations under this Agreement. 

23.    Protected Disclosures. I understand that nothing contained in this Agreement limits my ability to
communicate with any federal, state or local governmental agency or commission, including to provide documents or other information, without notice to the Company. I also understand that nothing in this Agreement limits my ability to share
compensation information concerning myself or others, except that this does not permit me to disclose compensation information concerning others that I obtain because my job responsibilities require or allow access to such information. 












 24.    Defend Trade Secrets Act of 2016. I understand that
pursuant to the federal Defend Trade Secrets Act of 2016, I shall not be held criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade secret that (a) is made (i) in confidence to a federal,
state, or local government official, either directly or indirectly, or to an attorney; and (ii) solely for the purpose of reporting or investigating a suspected violation of law; or (b) is made in a complaint or other document filed in a
lawsuit or other proceeding, if such filing is made under seal. 
 25.    Entire Agreement; Amendment. This
Agreement constitutes the entire agreement between the Company and me with respect to the subject matter hereof, and supersedes all prior agreements or understandings, both written and oral, between the Company and me with respect to the subject
matter hereof, but does not in any way merge with or supersede any other confidentiality, assignment of inventions or other restrictive covenant agreement or obligation entered into by the Company and me, which agreements and obligations shall
supplement, and shall not limit or be limited by, this Agreement. This Agreement may be amended only in a written agreement executed by a duly authorized officer of the Company and me. 

[Remainder of Page Intentionally Left Blank] 












 I UNDERSTAND THAT THIS AGREEMENT AFFECTS IMPORTANT RIGHTS. BY SIGNING BELOW, I CERTIFY THAT
(I) I WAS PROVIDED WITH THIS AGREEMENT BY THE EARLIER OF A FORMAL OFFER OF EMPLOYMENT OR TEN (10) BUSINESS DAYS BEFORE THE COMMENCEMENT OF MY EMPLOYMENT AND (II) I HAVE BEEN ADVISED BY THE COMPANY THAT I HAVE THE RIGHT TO CONSULT WITH
COUNSEL PRIOR TO SIGNING THIS AGREEMENT.     
 IN WITNESS WHEREOF, the undersigned has executed this agreement
as a sealed instrument and shall become effective upon the later of the (i) full execution by both parties; or (ii) ten (10) business days after the Company provided me with notice of this Agreement. 

EMPLOYEE 
 Signed: /s/ Steven
Hoerter                                        
             
 Type or print name: Steven Hoerter 

Date: March 4, 2019 
 THE COMPANY 

Signed: /s/ James
Bristol                                        
                
 Type or print name: James Bristol 

Title: Authorized Signatory 
 Date: March 4, 2019 












 EXHIBIT A 
  

			
	To:	 	Deciphera Pharmaceuticals, LLC
		
	From:	 	                                     
       
		
	Date:	 	                                     
       
		
	SUBJECT:	 	      Prior Inventions

 The following is a complete list of all inventions or improvements relevant to the subject matter of my
employment by the Company that have been made or conceived or first reduced to practice by me alone or jointly with others prior to my engagement by the Company: 
  

			
	☐	  	No inventions or improvements
		
	☐	  	See below:
		
		  	                                     
                                         
                                         
         
		
		  	                                     
                                         
                                         
         
		
		  	                                     
                                         
                                         
         
		
	☐	  	Additional sheets attached
	
	The following is a list of all patents and patent applications in which I have been named as an inventor:
		
	☐	  	None
		
	☐	  	See below: