Document:

EX-4.2

 Exhibit 4.2 

EXECUTION VERSION 
 ACACIA
COMMUNICATIONS, INC. 
 AMENDED AND RESTATED 

INVESTORS’ RIGHTS AGREEMENT 

April 17, 2013 

 TABLE OF CONTENTS 

 

									
	 	 	 	  	 	  	Page	 
	1.	 	Definitions	  	 	1	  
			
	2.	 	Registration Rights	  	 	5	  
				
		 	2.1	  	Demand Registration	  	 	5	  
		 	2.2	  	Company Registration	  	 	7	  
		 	2.3	  	Underwriting Requirements	  	 	7	  
		 	2.4	  	Obligations of the Company	  	 	8	  
		 	2.5	  	Furnish Information	  	 	10	  
		 	2.6	  	Expenses of Registration	  	 	10	  
		 	2.7	  	Delay of Registration	  	 	10	  
		 	2.8	  	Indemnification	  	 	10	  
		 	2.9	  	Reports Under Exchange Act	  	 	12	  
		 	2.10	  	Limitations on Subsequent Registration Rights	  	 	13	  
		 	2.11	  	“Market Stand-off” Agreement	  	 	13	  
		 	2.12	  	Restrictions on Transfer	  	 	14	  
			
	3.	 	Information and Observer Rights	  	 	15	  
				
		 	3.1	  	Delivery of Financial Statements	  	 	15	  
		 	3.2	  	Inspection	  	 	17	  
		 	3.3	  	Observer Rights	  	 	17	  
		 	3.4	  	Termination of Information and Observer Rights	  	 	18	  
		 	3.5	  	Confidentiality	  	 	18	  
			
	4.	 	Rights to Future Stock Issuances	  	 	18	  
				
		 	4.1	  	Right of First Offer	  	 	18	  
		 	4.2	  	Termination	  	 	19	  
			
	5.	 	Additional Covenants	  	 	19	  
				
		 	5.1	  	Insurance	  	 	19	  
		 	5.2	  	Employee Agreements	  	 	20	  
		 	5.3	  	Employee Stock	  	 	20	  
		 	5.4	  	Qualified Small Business Stock	  	 	20	  
		 	5.5	  	Matters Requiring Investor Director Approval	  	 	21	  
		 	5.6	  	Board Matters	  	 	22	  
		 	5.7	  	Directors’ Liability and Indemnification	  	 	22	  
		 	5.8	  	Indemnification of Fund Directors	  	 	22	  
		 	5.9	  	Successor Indemnification	  	 	23	  
		 	5.10	  	Termination of Covenants	  	 	23	  
			
	6.	 	Miscellaneous	  	 	23	  
				
		 	6.1	  	Successors and Assigns	  	 	23	  
		 	6.2	  	Governing Law	  	 	24	  
		 	6.3	  	Counterparts; Facsimile	  	 	24	  

  
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		 	6.4	  	Titles and Subtitles	  	 	24	  
		 	6.5	  	Notices	  	 	24	  
		 	6.6	  	Amendments and Waivers	  	 	25	  
		 	6.7	  	Severability	  	 	25	  
		 	6.8	  	Aggregation of Stock	  	 	25	  
		 	6.9	  	Entire Agreement	  	 	26	  
		 	6.10	  	Dispute Resolution	  	 	26	  
		 	6.11	  	WAIVER OF JURY TRIAL	  	 	26	  
		 	6.12	  	Costs of Enforcement	  	 	26	  
		 	6.13	  	Delays or Omissions	  	 	26	  
		 	6.14	  	Acknowledgment	  	 	27	  
		 	6.15	  	Additional Investors	  	 	27	  
		 	6.16	  	Termination of Prior Agreement	  	 	27	  

 Schedule A    -        Schedule of Investors 

  
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 AMENDED AND RESTATED 

INVESTORS’ RIGHTS AGREEMENT 

THIS AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT is made as of the 17th day of
April, 2013 by and among Acacia Communications, Inc., a Delaware corporation (the “Company”), and the investors listed on Schedule A hereto (each of which individually is referred to in this Agreement as an
“Investor” and collectively as the “Investors”). 
 RECITALS 

WHEREAS, the Company and certain of the Investors have previously entered into an Amended and Restated Investors’ Rights
Agreement, dated as of March 5, 2013 (the “Prior Agreement”), which provides each such Investor with the right to, among other things, cause the Company to register shares of Common Stock issuable to the Investors, receive
certain information from the Company, and participate in future equity offerings by the Company; 
 WHEREAS, concurrently with the
execution of this Agreement, the Company and certain of the Investors, including the Summit Investors, are entering into a Series D Preferred Stock Purchase Agreement of even date herewith (the “Series D Purchase Agreement”); and

 WHEREAS, the Investors desire to amend and restate the Prior Agreement to add the Summit Investors as parties to this Agreement
and to accept the rights and obligations created pursuant hereto in lieu of the rights created under the Prior Agreement; 
 NOW,
THEREFORE, the parties hereby agree as follows: 
 1. Definitions. For purposes of this Agreement: 

1.1 “Affiliate” means, with respect to any specified Person, any other Person who, directly or indirectly, controls, is
controlled by, or is under common control with such Person, including without limitation any general partner, managing member, officer or director of such Person or any venture capital fund now or hereafter existing that is controlled by one or more
general partners or managing members of, or shares the same management company with, such Person. 
 1.2 “Certificate of
Incorporation” means the Company’s Fourth Amended and Restated Certificate of Incorporation, as amended. 
 1.3
“Common Stock” means shares of the Company’s common stock, par value $0.0001 per share. 
 1.4
“Damages” means any loss, damage, or liability (joint or several) to which a party hereto may become subject under the Securities Act, the Exchange Act, or other federal or state law, insofar as such loss, damage, or liability (or
any action in respect thereof) arises out of or is based upon (i) any untrue statement or alleged untrue statement of a material fact contained in any registration statement of the Company, including any preliminary prospectus or final
prospectus contained therein or any amendments or supplements thereto; 

 
(ii) an omission or alleged omission to state therein a material fact required to be stated therein, or necessary to make the statements therein not misleading; or (iii) any violation
or alleged violation by the indemnifying party (or any of its agents or Affiliates) of the Securities Act, the Exchange Act, any state securities law, or any rule or regulation promulgated under the Securities Act, the Exchange Act, or any state
securities law. 
 1.5 “Derivative Securities” means any securities or rights convertible into, or exercisable or
exchangeable for (in each case, directly or indirectly), Common Stock, including options and warrants. 
 1.6 “Exchange
Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 
 1.7
“Excluded Registration” means (i) a registration relating to the sale of securities to employees of the Company or a subsidiary pursuant to a stock option, stock purchase, or similar plan; (ii) a registration relating to
an SEC Rule 145 transaction; (iii) a registration on any form that does not include substantially the same information as would be required to be included in a registration statement covering the sale of the Registrable Securities; or
(iv) a registration in which the only Common Stock being registered is Common Stock issuable upon conversion of debt securities that are also being registered. 

1.8 “Form S-1” means such form under the Securities Act as in effect on the date
hereof or any successor registration form under the Securities Act subsequently adopted by the SEC. 
 1.9 “Form S-3” means such form under the Securities Act as in effect on the date hereof or any registration form under the Securities Act subsequently adopted by the SEC that permits incorporation of substantial
information by reference to other documents filed by the Company with the SEC. 
 1.10 “GAAP” means generally accepted
accounting principles in the United States. 
 1.11 “Holder” means any holder of Registrable Securities who is a party to
this Agreement and shall include, for purposes of Section 2 of the Agreement, MassDevelopment (as defined below) and, solely for purposes of Sections 1, 2.1 through 2.11, 2.13 and 6 hereof (the “Applicable Sections”), SVB (as
defined below). 
 1.12 “Immediate Family Member” means a child, stepchild, grandchild, parent, stepparent, grandparent,
spouse, sibling, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including adoptive relationships, life partners and others covered under any applicable domestic relations statute of a natural person
referred to herein. 
 1.13 “Initiating Holders” means, collectively, Holders who properly initiate a registration request
under this Agreement. 

  
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 1.14 “Investor” has the meaning ascribed to it in the introductory paragraph
hereto and shall include, for purposes of Section 2 of the Agreement, MassDevelopment and, solely for purposes of the Applicable Sections, SVB. 

1.15 “IPO” means the Company’s first underwritten public offering of its Common Stock under the Securities Act. 

1.16 “Key Employee” means any executive-level employee (including division director and vice president-level positions) as
well as any employee or consultant who either alone or in concert with others has made a material technical contribution to any Company Intellectual Property. 

1.17 “Major Investor” means any Investor that, individually or together with such Investor’s Affiliates, holds at least
1,000,000 shares of Registrable Securities (as adjusted for any stock split, stock dividend, combination, or other recapitalization or reclassification effected after the date hereof) and OFS FITEL, LLC, or its Affiliates, successors or permitted
assigns (individually and collectively “OFS”), for so long as OFS continues to hold at least 500,000 shares of Preferred Stock or Common Stock or other securities (as adjusted for any stock split, stock dividend, combination, or
other recapitalization or reclassification effected after the date hereof and regardless whether or not issued or issuable upon conversion of the Preferred Stock). 

1.18 “MassDevelopment” means Massachusetts Development Finance Agency. 

1.19 “New Securities” means, collectively, equity securities of the Company, whether or not currently authorized, as well as
rights, options, or warrants to purchase such equity securities, or securities of any type whatsoever that are, or may become, convertible or exchangeable into or exercisable for such equity securities. 

1.20 “Person” means any individual, corporation, partnership, trust, limited liability company, association or other entity.

 1.21 “Preferred Directors” means collectively the Series A Director, the Series B Director and the Series D Director.

 1.22 “Preferred Stock” means the Series A Preferred Stock, the Series B Preferred Stock, the Series C Preferred Stock
and the Series D Preferred Stock, provided, however, that the shares issued and issuable upon exercise or conversion of that certain Warrant to Purchase Stock issued by the Company to SVB dated June 9, 2011 (the “SVB
Warrant”) shall be deemed “Preferred Stock” solely for purposes of the Applicable Sections. 
 1.23 “Registrable
Securities” means (i) the Common Stock issuable or issued upon conversion of the Preferred Stock, excluding any Common Stock issued upon conversion of the Preferred Stock pursuant to the “Special Mandatory Conversion”
provisions of the Company’s Certificate of Incorporation; (ii) any Common Stock, or any Common Stock issued or issuable (directly or indirectly) upon conversion and/or exercise of any other securities of the Company, acquired by any of the
Investors after the date hereof; (iii) any Common Stock issued 

  
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as (or issuable upon the conversion or exercise of any warrant, right, or other security that is issued as) a dividend or other distribution with respect to, or in exchange for or in replacement
of, the shares referenced in clauses (i) and (ii) above, (iv) for purposes of Section 2 of this Agreement, all shares of Common Stock of the Company now or hereafter held by MassDevelopment, including, without limitation,
the shares of Common Stock issued or issuable upon conversion of the Preferred Stock issued or issuable upon exercise of the warrant to purchase Preferred Stock held by MassDevelopment, and (v) solely for purposes of the Applicable Sections,
all shares of Common Stock issued and issuable upon conversion of the shares of Preferred Stock issued and issuable upon exercise or conversion of the SVB Warrant (and all shares of Common Stock issued and issuable upon exercise or conversion of the
SVB Warrant at all times, if any, when the Class (as defined in the SVB Warrant), shall be Common Stock); provided, however, that any such shares referenced in clauses (iv) and (v) above shall not be deemed “Registrable
Shares” for the purposes of participating as an Initiating Holder in the making of a demand for a Form S-1 registration statement pursuant to Section 2.1(a); excluding in all cases, however, any Registrable Securities sold by a
Person in a transaction in which the applicable rights under this Agreement are not assigned pursuant to Section 6.1. For purposes of this Agreement, a Person shall be deemed to be a holder of Registrable Securities, and the Registrable
Securities shall be deemed to be in existence, whenever such Person has the right to acquire, directly or indirectly, such Registrable Securities (upon conversion or exercise in connection with a transfer of securities or otherwise, but disregarding
any restrictions or limitations upon the exercise of such right), whether or not such acquisition has actually been effected, and such Person shall be entitled to exercise the rights of a Holder hereunder. 

1.24 “Restricted Securities” means the securities of the Company required to bear the legend set forth in
Section 2.12(b) hereof. 
 1.25 “SEC” means the Securities and Exchange Commission. 

1.26 “SEC Rule 144” means Rule 144 promulgated by the SEC under the Securities Act. 

1.27 “SEC Rule 144(b)(1)(i)” means Rule 144(b)(1)(i) promulgated by the SEC under the Securities Act. 

1.28 “SEC Rule 145” means Rule 145 promulgated by the SEC under the Securities Act. 

1.29 “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

 1.30 “Selling Expenses” means all underwriting discounts, selling commissions, and stock transfer taxes applicable to
the sale of Registrable Securities, and fees and disbursements of counsel for any Holder, except for the fees and disbursements of any Selling Holder Counsel borne and paid by the Company as provided in Section 2.6. 

1.31 “Series A Director” means any director of the Company that the holders of record of the Series A Preferred Stock
are entitled to elect pursuant to the Company’s Certificate of Incorporation. 

  
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 1.32 “Series B Director” means any director of the Company that the holders of
record of the Series B Preferred Stock are entitled to elect pursuant to the Company’s Certificate of Incorporation. 
 1.33
“Series D Director” means any director of the Company that the holders of record of the Series D Preferred Stock are entitled to elect pursuant to the Company’s Certificate of Incorporation. 

1.34 “Series A Preferred Stock” means shares of the Company’s Series A Preferred Stock, par value $0.0001 per share.

 1.35 “Series B Preferred Stock” means shares of the Company’s Series B Preferred Stock, par value $0.0001 per
share. 
 1.36 “Series C Preferred Stock” means shares of the Company’s Series C Preferred Stock, par value $0.0001
per share. 
 1.37 “Series D Preferred Stock” means shares of the Company’s Series D Preferred Stock, par value
$0.0001 per share. 
 1.38 “Summit Investors” means, collectively, Summit Partners Venture Capital Fund III-A, L.P., Summit
Partners Venture Capital Fund III-B, L.P., Summit Investors I, LLC, Summit Investors I (UK), L.P., any of their respective partners, members or Affiliates and any of their respective transferees or Affiliates that are Investors. 

1.39 “SVB” means Silicon Valley Bank, its successors and assigns. 

2. Registration Rights. The Company covenants and agrees as follows: 

2.1 Demand Registration. 

(a) Form S-1 Demand. If at any time after the earlier of (i) four (4) years after the date of this Agreement
and (ii) six (6) months after the effective date of the registration statement for the IPO, the Company receives a request from Holders of thirty percent (30%) of the Registrable Securities then outstanding that the Company file a
Form S-1 registration statement with respect to all or any portion of the Registrable Securities of such Holders having an anticipated aggregate offering price, net of Selling Expenses, of at least $7.5 million, then the Company shall
(i) within ten (10) days after the date such request is given, give notice thereof (the “Demand Notice”) to all Holders other than the Initiating Holders; and (ii) as soon as practicable, and in any event within sixty
(60) days after the date such request is given by the Initiating Holders, file a Form S-1 registration statement under the Securities Act covering all Registrable Securities that the Initiating Holders requested to be registered and any
additional Registrable Securities requested to be included in such registration by any other Holders, as specified by notice given by each such Holder to the Company within twenty (20) days of the date the Demand Notice is given, and in each
case, subject to the limitations of Section 2.1(c) and Section 2.3. 

  
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 (b) Form S-3 Demand. If at any time when it is eligible to use a Form S-3
registration statement, the Company receives a request from Holders of at least ten percent (10%) of the Registrable Securities then outstanding that the Company file a Form S-3 registration statement with respect to outstanding Registrable
Securities of such Holders having an anticipated aggregate offering price, net of Selling Expenses, of at least $5 million, then the Company shall (i) within ten (10) days after the date such request is given, give a Demand Notice to all
Holders other than the Initiating Holders; and (ii) as soon as practicable, and in any event within forty-five (45) days after the date such request is given by the Initiating Holders, file a Form S-3 registration statement under the
Securities Act covering all Registrable Securities requested to be included in such registration by any other Holders, as specified by notice given by each such Holder to the Company within twenty (20) days of the date the Demand Notice is
given, and in each case, subject to the limitations of Section 2.1(c) and Section 2.3. After the IPO, the Company shall use its reasonable best efforts to become and remain eligible for registration on Form S-3. 

(c) Notwithstanding the foregoing obligations, if the Company furnishes to Holders requesting a registration pursuant to this
Section 2.1 a certificate signed by the Company’s chief executive officer stating that in the good faith judgment of the Company’s Board of Directors it would be materially detrimental to the Company and its stockholders for
such registration statement to either become effective or remain effective for as long as such registration statement otherwise would be required to remain effective, because such action would (i) materially interfere with a significant
acquisition, corporate reorganization, or other similar transaction involving the Company; (ii) require premature disclosure of material information that the Company has a bona fide business purpose for preserving as confidential; or
(iii) render the Company unable to comply with requirements under the Securities Act or Exchange Act, then the Company shall have the right to defer taking action with respect to such filing, and any time periods with respect to filing or
effectiveness thereof shall be tolled correspondingly, for a period of not more than sixty (60) days after the request of the Initiating Holders is given; provided, however, that the Company may not invoke this right more than
once in any twelve (12) month period; and provided further that the Company shall not register any securities for its own account or that of any other stockholder during such sixty (60) day period other than an Excluded
Registration. 
 (d) The Company shall not be obligated to effect any registration pursuant to Section 2.1(a) (i) during
the period beginning on the date of filing of, and ending on a date that is one hundred eighty (180) days after the effective date of, a Company-initiated registration, provided, that the Company is actively employing in good faith
commercially reasonable efforts to cause such registration statement to become effective; (ii) after the Company has effected two registrations pursuant to Section 2.1(a); or (iii) if the Initiating Holders propose to dispose
of shares of Registrable Securities that may be immediately registered on Form S-3 pursuant to a request made pursuant to Section 2.1(b). The Company shall not be obligated to effect any registration pursuant to
Section 2.1(b) (i) during the period beginning on the date of filing of, and ending on a date that is ninety (90) days after the effective date of, a Company-initiated registration, provided, that the Company is actively
employing in good faith commercially reasonable efforts to cause such registration statement to become effective; or (ii) if the Company has effected two registrations pursuant to Section 2.1(b) within the twelve (12) month
period immediately preceding the date of such request. 

  
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Without in any way limiting the generality of Section 2.3(c), a registration shall not be counted as “effected” for purposes of this Section 2.1(d) until such
time as the applicable registration statement has been declared effective by the SEC, unless the Initiating Holders withdraw their request for such registration, elect not to pay the registration expenses therefor, and forfeit their right to one
demand registration statement pursuant to Section 2.6, in which case such withdrawn registration statement shall be counted as “effected” for purposes of this Section 2.1(d). 

2.2 Company Registration. If the Company proposes to register (including, for this purpose, a registration effected by the Company for
stockholders other than the Holders) any of its Common Stock under the Securities Act in connection with the public offering of such securities solely for cash (other than in an Excluded Registration), the Company shall, at such time, promptly give
each Holder notice of such registration. Upon the request of each Holder given within twenty (20) days after such notice is given by the Company, the Company shall, subject to the provisions of Section 2.3, cause to be registered
all of the Registrable Securities that each such Holder has requested to be included in such registration. The Company shall have the right to terminate or withdraw any registration initiated by it under this Section 2.2 before the
effective date of such registration, whether or not any Holder has elected to include Registrable Securities in such registration. The expenses (other than Selling Expenses) of such withdrawn registration shall be borne by the Company in accordance
with Section 2.6. 
 2.3 Underwriting Requirements. 

(a) If, pursuant to Section 2.1, the Initiating Holders intend to distribute the Registrable Securities covered by their request
by means of an underwriting, they shall so advise the Company as a part of their request made pursuant to Section 2.1, and the Company shall include such information in the Demand Notice. The underwriter(s) will be selected by the
Initiating Holders, subject only to the reasonable approval of the Company. In such event, the right of any Holder to include such Holder’s Registrable Securities in such registration shall be conditioned upon such Holder’s participation
in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. Notwithstanding any other provision of this Section 2.3, if the managing underwriter(s) advise(s) the
Initiating Holders in writing that marketing factors require a limitation on the number of shares to be underwritten, then the Initiating Holders shall so advise all Holders of Registrable Securities that otherwise would be underwritten pursuant
hereto, and the number of Registrable Securities that may be included in the underwriting shall be allocated among such Holders of Registrable Securities, including the Initiating Holders, in proportion (as nearly as practicable) to the number of
Registrable Securities owned by each Holder or in such other proportion as shall mutually be agreed to by all such selling Holders; provided, however, that the number of Registrable Securities held by the Holders to be included in such
underwriting shall not be reduced unless all other securities are first entirely excluded from the underwriting. To facilitate the allocation of shares in accordance with the above provisions, the Company or the underwriters may round the number of
shares allocated to any Holder to the nearest 100 shares. 
 (b) In connection with any offering involving an underwriting of shares of the
Company’s capital stock pursuant to Section 2.2, the Company shall not be required to include any of the Holders’ Registrable Securities in such underwriting only in such quantity

  
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as the underwriters in their sole discretion determine will not jeopardize the success of the offering by the Company. If the total number of securities, including Registrable Securities,
requested by stockholders to be included in such offering exceeds the number of securities to be sold (other than by the Company) that the underwriters in their reasonable discretion determine is compatible with the success of the offering, then the
Company shall be required to include in the offering only that number of such securities, including Registrable Securities, which the underwriters in their sole discretion determine will not jeopardize the success of the offering. If the
underwriters determine that less than all of the Registrable Securities requested to be registered can be included in such offering, then the Registrable Securities that are included in such offering shall be allocated among the selling Holders in
proportion (as nearly as practicable to) the number of Registrable Securities owned by each selling Holder or in such other proportions as shall mutually be agreed to by all such selling Holders. To facilitate the allocation of shares in accordance
with the above provisions, the Company or the underwriters may round the number of shares allocated to any Holder to the nearest 100 shares. Notwithstanding the foregoing, in no event shall (i) the number of Registrable Securities included in
the offering be reduced unless all other securities (other than securities to be sold by the Company) are first entirely excluded from the offering, or (ii) the number of Registrable Securities included in the offering be reduced below thirty
percent (30%) of the total number of securities included in such offering, unless such offering is the IPO, in which case the selling Holders may be excluded further if the underwriters make the determination described above and no other
stockholder’s securities are included in such offering. For purposes of the provision in this Section 2.3(b) concerning apportionment, for any selling Holder that is a partnership, limited liability company, or corporation, the
partners, members, retired partners, retired members, stockholders, and Affiliates of such Holder, or the estates and Immediate Family Members of any such partners, retired partners, members, and retired members and any trusts for the benefit of any
of the foregoing Persons, shall be deemed to be a single “selling Holder,” and any pro rata reduction with respect to such “selling Holder” shall be based upon the aggregate number of Registrable Securities owned by all Persons
included in such “selling Holder,” as defined in this sentence. 
 (c) For purposes of Section 2.1, a registration
shall not be counted as “effected” if, as a result of an exercise of the underwriter’s cutback provisions in Section 2.3(a), fewer than one hundred percent (100%) of the total number of Registrable Securities that
Holders have requested to be included in such registration statement are actually included. 
 2.4 Obligations of the Company.
Whenever required under this Section 2 to effect the registration of any Registrable Securities, the Company shall, as expeditiously as reasonably possible: 

(a) prepare and file with the SEC a registration statement with respect to such Registrable Securities and use its commercially reasonable
efforts to cause such registration statement to become effective and, upon the request of the Holders of a majority of the Registrable Securities registered thereunder, keep such registration statement effective for a period of up to one hundred
twenty (120) days or, if earlier, until the distribution contemplated in the registration statement has been completed; provided, however, that (i) such one hundred twenty (120) day period shall be extended for a period
of time equal to the period the Holder refrains, at the request of an underwriter of Common Stock (or other securities) of the Company, from selling any securities included in such registration, and (ii) in the case of any registration of

  
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Registrable Securities on Form S-3 that are intended to be offered on a continuous or delayed basis, subject to compliance with applicable SEC rules, such one hundred twenty (120) day period
shall be extended for up to 180 days, if necessary, to keep the registration statement effective until all such Registrable Securities are sold; 

(b) prepare and file with the SEC such amendments and supplements to such registration statement, and the prospectus used in connection with
such registration statement, as may be necessary to comply with the Securities Act in order to enable the disposition of all securities covered by such registration statement; 

(c) furnish to the selling Holders such numbers of copies of a prospectus, including a preliminary prospectus, as required by the Securities
Act, and such other documents as the Holders may reasonably request in order to facilitate their disposition of their Registrable Securities; 

(d) use its commercially reasonable efforts to register and qualify the securities covered by such registration statement under such other
securities or blue-sky laws of such jurisdictions as shall be reasonably requested by the selling Holders; provided that the Company shall not be required to qualify to do business or to file a general consent to service of process in any
such states or jurisdictions, unless the Company is already subject to service in such jurisdiction and except as may be required by the Securities Act; 

(e) in the event of any underwritten public offering, enter into and perform its obligations under an underwriting agreement, in usual and
customary form, with the underwriter(s) of such offering; 
 (f) use its commercially reasonable efforts to cause all such Registrable
Securities covered by such registration statement to be listed on a national securities exchange or trading system and each securities exchange and trading system (if any) on which similar securities issued by the Company are then listed; 

(g) provide a transfer agent and registrar for all Registrable Securities registered pursuant to this Agreement and provide a CUSIP number
for all such Registrable Securities, in each case not later than the effective date of such registration; 
 (h) promptly make available
for inspection by the selling Holders, any managing underwriter(s) participating in any disposition pursuant to such registration statement, and any attorney or accountant or other agent retained by any such underwriter or selected by the selling
Holders, all financial and other records, pertinent corporate documents, and properties of the Company, and cause the Company’s officers, directors, employees, and independent accountants to supply all information reasonably requested by any
such seller, underwriter, attorney, accountant, or agent, in each case, as necessary or advisable to verify the accuracy of the information in such registration statement and to conduct appropriate due diligence in connection therewith; 

(i) notify each selling Holder, promptly after the Company receives notice thereof, of the time when such registration statement has been
declared effective or a supplement to any prospectus forming a part of such registration statement has been filed; and 

  
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 (j) after such registration statement becomes effective, notify each selling Holder of any
request by the SEC that the Company amend or supplement such registration statement or prospectus. 
 2.5 Furnish Information. It
shall be a condition precedent to the obligations of the Company to take any action pursuant to this Section 2 with respect to the Registrable Securities of any selling Holder that such Holder shall furnish to the Company such
information regarding itself, the Registrable Securities held by it, and the intended method of disposition of such securities as is reasonably required to effect the registration of such Holder’s Registrable Securities. 

2.6 Expenses of Registration. All expenses (other than Selling Expenses) incurred in connection with registrations, filings, or
qualifications pursuant to Section 2, including all registration, filing, and qualification fees; printers’ and accounting fees; fees and disbursements of custodians, underwriters, counsel and other Persons retained by the Company;
and the reasonable fees and disbursements of one counsel for the selling Holders and the reasonable fees and disbursements of each additional counsel retained by any Holder of Registrable Securities for the purpose of rendering a legal opinion on
behalf of such Holder in connection with any underwritten registration (each, “Selling Holder Counsel”), whether or not such registration shall have become effective shall be borne and paid by the Company; provided,
however, that the Company shall not be required to pay for any expenses of any registration proceeding begun pursuant to Section 2.1 if the registration request is subsequently withdrawn at the request of the Holders of a majority
of the Registrable Securities to be registered (in which case all selling Holders shall bear such expenses pro rata based upon the number of Registrable Securities that were to be included in the withdrawn registration), unless the Holders of a
majority of the Registrable Securities agree to forfeit their right to one registration pursuant to Section 2.1(a) or Section 2.1(b), as the case may be; provided further that if, at the time of such withdrawal, the
Holders shall have learned of a material adverse change in the condition, business, or prospects of the Company from that known to the Holders at the time of their request and have withdrawn the request with reasonable promptness after learning of
such information then the Holders shall not be required to pay any of such expenses and shall not forfeit their right to one registration pursuant to Section 2.1(a) or Section 2.1(b). All Selling Expenses relating to
Registrable Securities registered pursuant to this Section 2 shall be borne and paid by the Holders pro rata on the basis of the number of Registrable Securities registered on their behalf. 

2.7 Delay of Registration. No Holder shall have any right to obtain or seek an injunction restraining or otherwise delaying any
registration pursuant to this Agreement as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 2. 

2.8 Indemnification. If any Registrable Securities are included in a registration statement under this Section 2: 

(a) To the extent permitted by law, the Company will indemnify and hold harmless each selling Holder, and the partners, members, officers,
directors, and stockholders of each such Holder; legal counsel and accountants for each such Holder; any 

  
 10 

 
underwriter (as defined in the Securities Act) for each such Holder; and each Person, if any, who controls such Holder or underwriter within the meaning of the Securities Act or the Exchange Act,
against any Damages, and the Company will pay to each such Holder, underwriter, controlling Person, or other aforementioned Person any legal or other expenses reasonably incurred thereby in connection with investigating or defending any claim or
proceeding from which Damages may result, as such expenses are incurred; provided, however, that the indemnity agreement contained in this Section 2.8(a) shall not apply to amounts paid in settlement of any such claim or
proceeding if such settlement is effected without the consent of the Company, which consent shall not be unreasonably withheld, nor shall the Company be liable for any Damages to the extent that they arise out of or are based upon actions or
omissions made in reliance upon and in conformity with written information furnished by or on behalf of any such Holder, underwriter, controlling Person, or other aforementioned Person expressly for use in connection with such registration. 

(b) To the extent permitted by law, each selling Holder, severally and not jointly, will indemnify and hold harmless the Company, and each of
its directors, each of its officers who has signed the registration statement, each Person (if any), who controls the Company within the meaning of the Securities Act, legal counsel and accountants for the Company, any underwriter (as defined in the
Securities Act), any other Holder selling securities in such registration statement, and any controlling Person of any such underwriter or other Holder, against any Damages, in each case only to the extent that such Damages arise out of or are based
upon actions or omissions made in reliance upon and in conformity with written information furnished by or on behalf of such selling Holder expressly for use in connection with such registration; and each such selling Holder will pay to the Company
and each other aforementioned Person any legal or other expenses reasonably incurred thereby in connection with investigating or defending any claim or proceeding from which Damages may result, as such expenses are incurred; provided,
however, that the indemnity agreement contained in this Section 2.8(b) shall not apply to amounts paid in settlement of any such claim or proceeding if such settlement is effected without the consent of the Holder, which consent
shall not be unreasonably withheld; and provided further that in no event shall the aggregate amounts payable by any Holder by way of indemnity or contribution under Sections 2.8(b) and 2.8(d) exceed the proceeds from the
offering received by such Holder (net of any Selling Expenses paid by such Holder), except in the case of fraud or willful misconduct by such Holder. 

(c) Promptly after receipt by an indemnified party under this Section 2.8 of notice of the commencement of any action (including any
governmental action) for which a party may be entitled to indemnification hereunder, such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this Section 2.8, give the indemnifying party
notice of the commencement thereof. The indemnifying party shall have the right to participate in such action and, to the extent the indemnifying party so desires, participate jointly with any other indemnifying party to which notice has been given,
and to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party (together with all other indemnified parties that may be represented without conflict by one counsel)
shall have the right to retain one separate counsel, with the fees and expenses to be paid by the indemnifying party, if representation of such indemnified party by the counsel retained by the indemnifying party would be inappropriate due to actual
or potential differing interests between such indemnified party and any other party represented by such 

  
 11 

 
counsel in such action. The failure to give notice to the indemnifying party within a reasonable time of the commencement of any such action shall relieve such indemnifying party of any liability
to the indemnified party under this Section 2.8, to the extent that such failure materially prejudices the indemnifying party’s ability to defend such action. The failure to give notice to the indemnifying party will not relieve it
of any liability that it may have to any indemnified party otherwise than under this Section 2.8. 
 (d) To provide for just
and equitable contribution to joint liability under the Securities Act in any case in which either (i) any party otherwise entitled to indemnification hereunder makes a claim for indemnification pursuant to this Section 2.8 but it
is judicially determined (by the entry of a final judgment or decree by a court of competent jurisdiction and the expiration of time to appeal or the denial of the last right of appeal) that such indemnification may not be enforced in such case,
notwithstanding the fact that this Section 2.8 provides for indemnification in such case, or (ii) contribution under the Securities Act may be required on the part of any party hereto for which indemnification is provided under this
Section 2.8, then, and in each such case, such parties will contribute to the aggregate losses, claims, damages, liabilities, or expenses to which they may be subject (after contribution from others) in such proportion as is appropriate
to reflect the relative fault of each of the indemnifying party and the indemnified party in connection with the statements, omissions, or other actions that resulted in such loss, claim, damage, liability, or expense, as well as to reflect any
other relevant equitable considerations. The relative fault of the indemnifying party and of the indemnified party shall be determined by reference to, among other things, whether the untrue or allegedly untrue statement of a material fact, or the
omission or alleged omission of a material fact, relates to information supplied by the indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information, and opportunity to correct or prevent
such statement or omission; provided, however, that, in any such case, (x) no Holder will be required to contribute any amount in excess of the public offering price of all such Registrable Securities offered and sold by such
Holder pursuant to such registration statement, and (y) no Person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any Person who was not guilty of
such fraudulent misrepresentation; and provided further that in no event shall a Holder’s liability pursuant to this Section 2.8(d), when combined with the amounts paid or payable by such Holder pursuant to
Section 2.8(b), exceed the proceeds from the offering received by such Holder (net of any Selling Expenses paid by such Holder), except in the case of willful misconduct or fraud by such Holder. 

(e) Unless otherwise superseded by an underwriting agreement entered into in connection with the underwritten public offering, the
obligations of the Company and Holders under this Section 2.8 shall survive the completion of any offering of Registrable Securities in a registration under this Section 2, and otherwise shall survive the termination of this
Agreement. 
 2.9 Reports Under Exchange Act. With a view to making available to the Holders the benefits of SEC Rule 144 and any
other rule or regulation of the SEC that may at any time permit a Holder to sell securities of the Company to the public without registration or pursuant to a registration on Form S-3, the Company shall: 

(a) make and keep available adequate current public information, as those terms are understood and defined in SEC Rule 144, at all times
after the effective date of the registration statement filed by the Company for the IPO; 

  
 12 

 (b) use commercially reasonable efforts to file with the SEC in a timely manner all reports and
other documents required of the Company under the Securities Act and the Exchange Act (at any time after the Company has become subject to such reporting requirements); and 

(c) furnish to any Holder, so long as the Holder owns any Registrable Securities, forthwith upon request (i) to the extent accurate, a
written statement by the Company that it has complied with the reporting requirements of SEC Rule 144 (at any time after ninety (90) days after the effective date of the registration statement filed by the Company for the IPO), the Securities
Act, and the Exchange Act (at any time after the Company has become subject to such reporting requirements), or that it qualifies as a registrant whose securities may be resold pursuant to Form S-3 (at any
time after the Company so qualifies); (ii) a copy of the most recent annual or quarterly report of the Company and such other reports and documents so filed by the Company; and (iii) such other information as may be reasonably requested in
availing any Holder of any rule or regulation of the SEC that permits the selling of any such securities without registration (at any time after the Company has become subject to the reporting requirements under the Exchange Act) or pursuant to Form
S-3 (at any time after the Company so qualifies to use such form). 
 2.10 Limitations on
Subsequent Registration Rights. From and after the date of this Agreement, the Company shall not, without the prior written consent of the Holders of a majority of the Registrable Securities then outstanding, enter into any agreement with any
holder or prospective holder of any securities of the Company that would allow such holder or prospective holder (i) to include such securities in any registration unless, under the terms of such agreement, such holder or prospective holder may
include such securities in any such registration only to the extent that the inclusion of such securities will not reduce the number of the Registrable Securities of the Holders that are included or (ii) to initiate a demand for registration of
any securities held by such holder or prospective holder. 
 2.11 “Market Stand-off”
Agreement. Each Holder hereby agrees that it will not, without the prior written consent of the managing underwriter, during the period commencing on the date of the final prospectus relating to the Company’s IPO and ending on the date
specified by the Company and the managing underwriter (such period not to exceed one hundred eighty (180) days or, if required by such underwriter, such longer period of time as is necessary to enable such underwriter to issue a research report
or make a public appearance that relates to an earnings release or announcement by the Company within fifteen (15) days prior to or after the date that is one hundred eighty (180) days after the effective date of the registration statement
relating to such offering, but in any event not to exceed two hundred ten (210) days following the effective date of the registration statement relating to such offering (i) lend; offer; pledge; sell; contract to sell; sell any option or
contract to purchase; purchase any option or contract to sell; grant any option, right, or warrant to purchase; or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock or any securities convertible into or exercisable
or exchangeable (directly or indirectly) for Common Stock held immediately before the effective 

  
 13 

 
date of the registration statement for such offering or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of
ownership of such securities, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or other securities, in cash, or otherwise. The foregoing provisions of this
Section 2.11, shall not apply to the sale of any shares to an underwriter pursuant to an underwriting agreement, and shall be applicable to the Holders only if all officers and directors who hold stock are subject to similar restrictions
and the Company uses commercially reasonable efforts to obtain a similar agreement from all stockholders individually owning more than one percent (1%) of the Company’s outstanding Common Stock (after giving effect to conversion into
Common Stock of all outstanding shares of Preferred Stock). The underwriters in connection with such registration are intended third-party beneficiaries of this Section 2.11 and shall have the
right, power, and authority to enforce the provisions hereof as though they were a party hereto. Each Holder further agrees to execute such agreements as may be reasonably requested by the underwriters in connection with such registration that are
consistent with this Section 2.11 or that are necessary to give further effect thereto. Any discretionary waiver or termination of the restrictions of any or all of such agreements by the Company or the underwriters shall apply pro rata
to all Holders subject to such agreements, based on the number of shares subject to such agreements. 
 2.12 Restrictions on
Transfer. 
 (a) The Preferred Stock and the Registrable Securities shall not be sold, pledged, or otherwise transferred, and the
Company shall not recognize and shall issue stop-transfer instructions to its transfer agent with respect to any such sale, pledge, or transfer, except upon the conditions specified in this Agreement, which conditions are intended to ensure
compliance with the provisions of the Securities Act. A transferring Holder will cause any proposed purchaser, pledgee, or transferee of the Preferred Stock and the Registrable Securities held by such Holder to agree to take and hold such securities
subject to the provisions and upon the conditions specified in this Agreement. 
 (b) Each certificate or instrument representing
(i) the Preferred Stock, (ii) the Registrable Securities, and (iii) any other securities issued in respect of the securities referenced in clauses (i) and (ii), upon any stock split, stock dividend, recapitalization, merger,
consolidation, or similar event, shall (unless otherwise permitted by the provisions of Section 2.12(c)) be stamped or otherwise imprinted with a legend substantially in the following form: 

THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. SUCH SHARES
MAY NOT BE SOLD, PLEDGED, OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR A VALID EXEMPTION FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SAID ACT. 

THE SECURITIES REPRESENTED HEREBY MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE STOCKHOLDER,
A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY. 

  
 14 

 The Holders consent to the Company making a notation in its records and giving instructions to any transfer agent
of the Restricted Securities in order to implement the restrictions on transfer set forth in this Section 2.12. 
 (c) The
holder of each certificate representing Restricted Securities, by acceptance thereof, agrees to comply in all respects with the provisions of this Section 2. Before any proposed sale, pledge, or transfer of any Restricted Securities,
unless there is in effect a registration statement under the Securities Act covering the proposed transaction, the Holder thereof shall give notice to the Company of such Holder’s intention to effect such sale, pledge, or transfer. Each such
notice shall describe the manner and circumstances of the proposed sale, pledge, or transfer in sufficient detail and, if reasonably requested by the Company, shall be accompanied at such Holder’s expense by either (i) a written opinion of
legal counsel who shall, and whose legal opinion shall, be reasonably satisfactory to the Company, addressed to the Company, to the effect that the proposed transaction may be effected without registration under the Securities Act; (ii) a
“no action” letter from the SEC to the effect that the proposed sale, pledge, or transfer of such Restricted Securities without registration will not result in a recommendation by the staff of the SEC that action be taken with respect
thereto; or (iii) any other evidence reasonably satisfactory to counsel to the Company to the effect that the proposed sale, pledge, or transfer of the Restricted Securities may be effected without registration under the Securities Act,
whereupon the Holder of such Restricted Securities shall be entitled to sell, pledge, or transfer such Restricted Securities in accordance with the terms of the notice given by the Holder to the Company. The Company will not require such a legal
opinion or “no action” letter (x) in any transaction in compliance with SEC Rule 144 or (y) in any transaction in which such Holder distributes Restricted Securities to an Affiliate of such Holder for no consideration;
provided that each transferee agrees in writing to be subject to the terms of this Section 2.12. Each certificate or instrument evidencing the Restricted Securities transferred as above provided shall bear, except if such transfer
is made pursuant to SEC Rule 144, the appropriate restrictive legend set forth in Section 2.12(b), except that such certificate shall not bear such restrictive legend if, in the opinion of counsel for such Holder and the Company,
such legend is not required in order to establish compliance with any provisions of the Securities Act. 
 3. Information and Observer
Rights. 
 3.1 Delivery of Financial Statements. The Company shall deliver to each Major Investor: 

(a) as soon as practicable, but in any event within ninety (90) days after the end of each fiscal year of the Company, (i) a
balance sheet as of the end of such year, and a comparison between (x) the actual amounts as of and for such fiscal year and (y) the comparable amounts for the prior year as included in the Budget (as defined in Section 3.1(d))
for such year, (ii) statements of income and of cash flows for such year, and (iii) a statement of stockholders’ equity as of the end of such year, all such financial statements audited and certified by independent public accountants
of nationally recognized standing selected by the Company; 

  
 15 

 (b) as soon as practicable, but in any event within
forty-five (45) days after the end of each of the first three (3) quarters of each fiscal year of the Company, unaudited statements of income and of cash flows for such fiscal quarter, and an
unaudited balance sheet and a statement of stockholders’ equity as of the end of such fiscal quarter, all prepared in accordance with GAAP (except that such financial statements may (i) be subject to normal year-end audit adjustments and
(ii) not contain all notes thereto that may be required in accordance with GAAP); 
 (c) as soon as practicable, but in any event
within forty-five (45) days after the end of each of the first three (3) quarters of each fiscal year of the Company, a statement showing the number of shares of each class and series of capital stock and securities convertible into or
exercisable for shares of capital stock outstanding at the end of the period, the Common Stock issuable upon conversion or exercise of any outstanding securities convertible or exercisable for Common Stock and the exchange ratio or exercise price
applicable thereto, and the number of shares of issued stock options and stock options not yet issued but reserved for issuance, if any, all in sufficient detail as to permit the Major Investors to calculate their respective percentage equity
ownership in the Company, and certified by the chief financial officer or chief executive officer of the Company as being true, complete, and correct; 

(d) as soon as practicable, but in any event within thirty (30) days of the end of each month, an unaudited income statement and
statement of cash flows for such month, and an unaudited balance sheet as of the end of such month, all prepared in accordance with GAAP (except that such financial statements may (i) be subject to normal year-end audit adjustments and
(ii) not contain all notes thereto that may be required in accordance with GAAP); 
 (e) as soon as practicable, but in any event
thirty (30) days before the end of each fiscal year, a budget and business plan for the next fiscal year (collectively, the “Budget”), approved by the Board of Directors and prepared on a monthly basis, including balance
sheets, income statements, and statements of cash flow for such months and, promptly after prepared, any other budgets or revised budgets prepared by the Company; 

(f) with respect to the financial statements called for in Section 3.1(a), and Section 3.1(b), an instrument executed
by the chief financial officer or chief executive officer of the Company certifying that such financial statements were prepared in accordance with GAAP consistently applied with prior practice for earlier periods (except as otherwise set forth in
Section 3.1(b)) and fairly present the financial condition of the Company and its results of operation for the periods specified therein; and 

(g) such other information relating to the financial condition, business, prospects, or corporate affairs of the Company as any Major
Investor may from time to time reasonably request; provided, however, that the Company shall not be obligated under this Section 3.1 to provide information (i) that the Company reasonably determines in good faith to be
a trade secret or confidential information (unless covered by an enforceable confidentiality agreement, in form acceptable to the Company) or (ii) the disclosure of which would adversely affect the attorney-client privilege between the Company
and its counsel. 

  
 16 

 If, for any period, the Company has any subsidiary whose accounts are consolidated with those of the Company,
then in respect of such period the financial statements delivered pursuant to the foregoing sections shall be the consolidated and consolidating financial statements of the Company and all such consolidated subsidiaries. 

3.2 Inspection. The Company shall permit each Major Investor and its accountants, counsel and other representatives, at such Major
Investor’s expense, to visit and inspect the Company’s properties; examine its books of account and records; and discuss the Company’s affairs, finances, and accounts with its officers, during normal business hours of the Company as
may be reasonably requested by the Major Investor; provided, however, that the Company shall not be obligated pursuant to this Section 3.2 to provide access to any information that it reasonably and in good faith considers
to be a trade secret or confidential information (unless such trade secret or confidential information is covered by an enforceable confidentiality agreement, in a reasonable and customary form mutually acceptable to the Company and the applicable
Major Investor) or the disclosure of which would adversely affect the attorney-client privilege between the Company and its counsel. 
 3.3
Observer Rights. 
 (a) For so long as OFS remains a Major Investor, the Company shall invite a representative of OFS to attend all
meetings of its Board of Directors in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors at the same time and in the same
manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence and trust and to act in a fiduciary manner with respect to all information so provided; and provided further,
that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could (i) result in disclosure of trade secrets
(unless covered by an enforceable confidentiality agreement, in a reasonable and customary form mutually acceptable to the Company and OFS), (ii) adversely affect the attorney-client privilege between the Company and its counsel,
(iii) result in a conflict of interest, or (iv) if such Investor or its representative is a competitor of the Company (as reasonably determined by the Board of Directors). 

(b) For so long as Egan Managed Capital remains a Major Investor, the Company shall invite a representative of Egan Managed Capital to attend
all meetings of its Board of Directors in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors at the same time and in the
same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence and trust with respect to all information so provided; and provided further, that the Company reserves the
right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could (i) result in disclosure of trade secrets (unless covered by an
enforceable confidentiality agreement, in a reasonable and customary form mutually acceptable to the Company and Egan Managed Capital), (ii) adversely affect the attorney-client privilege between the Company and its counsel, or
(iii) result in a conflict of interest. 

  
 17 

 3.4 Termination of Information and Observer Rights. The covenants set forth in
Section 3.1, Section 3.2, and Section 3.3 shall not be effective during any period that the Company is subject to and in compliance with the periodic reporting requirements of Section 12(g) or 15(d) of the
Exchange Act. 
 3.5 Confidentiality. Each Investor agrees that such Investor will keep confidential and will not disclose any
confidential information obtained from the Company pursuant to the terms of this Agreement (including notice of the Company’s intention to file a registration statement), unless such confidential information (a) is known or becomes known
to the public in general (other than as a result of a breach of this Section 3.5 by such Investor), (b) is or has been independently developed or conceived by the Investor without use of the Company’s confidential information,
or (c) is or has been made known or disclosed to the Investor by a third party without a breach of any obligation of confidentiality such third party may have to the Company; provided, however, that an Investor may disclose
confidential information (i) to its attorneys, accountants, consultants, and other professionals to the extent necessary to obtain their services in connection with monitoring its investment in the Company; (ii) to any prospective
purchaser of any Registrable Securities from such Investor, provided such prospective purchaser is not a competitor of the Company and such prospective purchaser agrees to be bound by the provisions of this Section 3.5;
(iii) to any existing or prospective Affiliate, partner, member, stockholder, or wholly owned subsidiary of such Investor in the ordinary course of business, provided that such Investor informs such Person that such information is
confidential and directs such Person to maintain the confidentiality of such information; or (iv) as may otherwise be required by law, provided that the Investor promptly notifies the Company of such disclosure and takes reasonable steps
to minimize the extent of any such required disclosure. 
 4. Rights to Future Stock Issuances. 

4.1 Right of First Offer. Subject to the terms and conditions of this Section 4.1 and applicable securities laws, if the
Company proposes to offer or sell any New Securities, the Company shall first offer such New Securities to each Major Investor. A Major Investor shall be entitled to apportion the right of first offer hereby granted to it among itself and its
Affiliates in such proportions as it deems appropriate. 
 (a) The Company shall give notice (the “Offer Notice”) to each
Major Investor, stating (i) its bona fide intention to offer such New Securities, (ii) the number of such New Securities to be offered, and (iii) the price and terms, if any, upon which it proposes to offer such New Securities. 

(b) By notification to the Company within twenty (20) days after the Offer Notice is given, each Major Investor may elect to purchase or
otherwise acquire, at the price and on the terms specified in the Offer Notice, up to that portion of such New Securities, which equals the proportion that the Common Stock issued and held, or issuable (directly or indirectly) upon conversion and/or
exercise, as applicable, of the Preferred Stock and any other Derivative Securities then held, by such Major Investor bears to the total Common Stock of the Company issued and held, or issuable (directly or indirectly) upon conversion and/or
exercise, as applicable, of the Preferred Stock and any other Derivative Securities then held, by all the 

  
 18 

 
Major Investors. At the expiration of such twenty (20) day period, the Company shall promptly notify each Major Investor that elects to purchase or acquire all the shares available to it
(each, a “Fully Exercising Investor”) of any other Major Investor’s failure to do likewise. During the ten (10) day period commencing after the Company has given such notice, each Fully Exercising Investor may, by giving
notice to the Company, elect to purchase or acquire, in addition to the number of shares specified above, up to that portion of the New Securities for which Major Investors were entitled to subscribe but that were not subscribed for by the Major
Investors which is equal to the proportion that the Common Stock issued and held, or issuable (directly or indirectly) upon conversion and/or exercise, as applicable, of Preferred Stock and any other Derivative Securities then held, by such Fully
Exercising Investor bears to the Common Stock issued and held, or issuable (directly or indirectly) upon conversion and/or exercise, as applicable, of Preferred Stock and any other Derivative Securities then held, by all Fully Exercising Investors
who wish to purchase such unsubscribed shares. The closing of any sale pursuant to this Section 4.1(b) shall occur within the later of ninety (90) days of the date that the Offer Notice is given and the date of initial sale of New
Securities pursuant to Section 4.1(c). 
 (c) If all New Securities referred to in the Offer Notice are not elected to be
purchased or acquired as provided in Section 4.1(b), the Company may, during the ninety (90) day period following the expiration of the periods provided in Section 4.1(b), offer and sell the remaining
unsubscribed portion of such New Securities to any Person or Persons at a price not less than, and upon terms no more favorable to the offeree than, those specified in the Offer Notice. If the Company does not enter into an agreement for the sale of
the New Securities within such period, or if such agreement is not consummated within thirty (30) days of the execution thereof, the right provided hereunder shall be deemed to be revived and such New Securities shall not be offered unless
first reoffered to the Major Investors in accordance with this Section 4.1. 
 (d) The right of first offer in this
Section 4.1 shall not be applicable to (i) Exempted Securities (as defined in the Company’s Certificate of Incorporation); (ii) shares of Common Stock issued in the IPO; and (iii) the issuance of shares of
Series D Preferred Stock pursuant to the Series D Purchase Agreement. 
 4.2 Termination. The covenants set forth in
Section 4.1 shall terminate and be of no further force or effect upon the earlier of (i) the consummation of the Company’s first underwritten public offering of its Common Stock in which all of the Company’s Preferred
Stock is converted into Common Stock, or (ii) the liquidation, dissolution and winding up of the Company or the consummation of a sale, lease, license, transfer, conveyance or other disposition to an independent third party, directly or
indirectly, in one transaction or a series of related transactions (including by way of merger, consolidation, recapitalization, reorganization or sale of securities) of all or substantially all of the shares of capital stock of the Company or all
or substantially all of the assets of the Company and its subsidiaries, taken as a whole. 
 5. Additional Covenants. 

5.1 Insurance. The Company shall use its commercially reasonable efforts to obtain within one hundred twenty (120) days following
the date hereof or maintain, from 

  
 19 

 
financially sound and reputable insurers, (a) Directors and Officers liability insurance; (b) term “key-person” insurance on
Raj Shanmugaraj, Benny Mikkelsen, Christian Rasmussen and Mehrdad Givehchi and (c) property and general liability insurance, each in an amount and on terms and conditions satisfactory to the Board of Directors, and will use commercially
reasonable efforts to cause such insurance policies to be maintained until such time as the Board of Directors determines that such insurance should be discontinued. The key-person policy shall name the
Company as loss payee, and neither policy shall be cancelable by the Company without prior approval by the Board of Directors, including at least two (2) of the Preferred Directors. 

5.2 Employee Agreements. The Company will cause (i) each person now or hereafter employed by it or by any subsidiary (or engaged
by the Company or any subsidiary as a consultant/independent contractor) with access to confidential information and/or trade secrets and/or with a role in developing, modifying or implementing Company Intellectual Property (as defined in the Series
D Purchase Agreement) to enter into a nondisclosure and proprietary rights assignment agreement in a form reasonably acceptable to the Investors and (ii) each Key Employee to enter into a one (1) year noncompetition and nonsolicitation
agreement, in a form reasonably acceptable to the Investors. In addition, the Company shall not amend, modify, terminate, waive, or otherwise alter, in whole or in part, any of the above-referenced agreements or any restricted stock agreement
between the Company and any employee, without the prior approval by the Board of Directors, including at least two (2) of the Preferred Directors. 

5.3 Employee Stock. Unless otherwise approved by the Board of Directors, including at least two (2) of the Preferred Directors,
all future employees and consultants of the Company who purchase, receive options to purchase, or receive awards of shares of the Company’s capital stock after the date hereof shall be required to execute restricted stock or option agreements,
as applicable, providing for (i) vesting of shares over a five (5) year period, with the first twenty percent (20%) of such shares vesting following twelve (12) months of continued employment or service, and the remaining shares
vesting in equal monthly installments over the following forty-eight (48) months, such vesting to be accelerated by six (6) months in the case of an acquisition of the Company, and (ii) a market stand-off provision substantially
similar to that in Section 2.11. In addition, unless otherwise approved by the Board of Directors, including at least two (2) of the Preferred Directors, the Company shall retain a “right of first refusal” on employee
transfers until the Company’s IPO and shall have the right to repurchase unvested shares at cost upon termination of employment of a holder of restricted stock. In the event of any assignment, designation or delegation of any “right of
first refusal” by the Company, the Company shall offer such right to the Investors pro rata based on the Investor’s fully-diluted ownership of Common Stock (assuming full conversion of all Preferred Stock). 

5.4 Qualified Small Business Stock. The Company shall use commercially reasonable efforts to cause the shares of Preferred Stock issued
pursuant to the Series A Purchase Agreement, Series B Purchase Agreement, Series C Purchase Agreement and the Series D Purchase Agreement, as well as any shares into which such shares are converted, within the meaning of Section 1202(f) of the
Internal Revenue Code (the “Code”), to constitute “qualified small business stock” as defined in Section 1202(c) of the Code; provided, however, that such requirement shall not be applicable if the Board
of Directors of the Company determines, in its good-faith business judgment, that such qualification is inconsistent with the best interests of the 

  
 20 

 
Company. The Company shall submit to its stockholders (including the Investors) and to the Internal Revenue Service any reports that may be required under Section 1202(d)(1)(C) of the Code
and the regulations promulgated thereunder. In addition, within twenty (20) business days after any Investor’s written request therefor, the Company shall, at its option, either (i) deliver to such Investor a written statement
indicating whether (and what portion of) such Investor’s interest in the Company constitutes “qualified small business stock” as defined in Section 1202(c) of the Code or (ii) deliver to such Investor such factual
information in the Company’s possession as is reasonably necessary to enable such Investor to determine whether (and what portion of) such Investor’s interest in the Company constitutes “qualified small business stock” as defined
in Section 1202(c) of the Code. 
 5.5 Matters Requiring Investor Director Approval. So long as at least one million
(1,000,000) shares of Series A Preferred Stock, at least one million (1,000,000) shares of Series B Preferred Stock and at least one million (1,000,000) shares of Series D Preferred Stock (each as adjusted for any stock split,
stock dividend, combination, or other recapitalization or reclassification effected after the date hereof) remain outstanding, the Company hereby covenants and agrees with each of the Investors that it shall not, without approval of the Board of
Directors, which approval must include the affirmative vote of the Series A Director, the Series B Director and the Series D Director: 

(a) make, or permit any subsidiary to make, any loan or advance to, or own any stock or other securities of, any subsidiary or other
corporation, partnership, or other entity unless it is wholly owned by the Company; 
 (b) make, or permit any subsidiary to make, any loan
or advance to any Person, including, without limitation, any employee or director of the Company or any subsidiary, except advances and similar expenditures in the ordinary course of business or under the terms of an employee stock or option plan
approved by the Board of Directors; 
 (c) guarantee, directly or indirectly, or permit any subsidiary to guarantee, directly or
indirectly, any indebtedness except for trade accounts of the Company or any subsidiary arising in the ordinary course of business; 
 (d)
make any investment other than investments in prime commercial paper, money market funds, certificates of deposit in any United States bank having a net worth in excess of one hundred million dollars ($100,000,000) or obligations issued or
guaranteed by the United States of America, in each case having a maturity not in excess of one (1) year; 
 (e) incur any aggregate
indebtedness in excess of $25,000 that is not already included in a budget approved by the Board of Directors, other than trade credit incurred in the ordinary course of business; 

(f) otherwise enter into or be a party to any transaction with any director, officer, employee, stockholder or Affiliate of the Company or
any individual related by blood, marriage or adoption to any such individual or any entity in which any such Person or individual owns any beneficial interest, except for transactions contemplated by this Agreement or the Series D Purchase
Agreement; 

  
 21 

 (g) hire, terminate, or change the compensation of the executive officers, including approving
any option grants or stock awards to executive officers; 
 (h) change the principal business of the Company, enter new lines of business,
or exit the current line of business; or 
 (i) sell, transfer, assign, license, pledge, or encumber material technology or intellectual
property, other than licenses granted in the ordinary course of business. 
 5.6 Board Matters. Unless otherwise determined by the
vote of a majority of the directors then in office, which majority shall include each of the Preferred Directors, the Board of Directors shall meet at least (4) times per year on a quarterly basis in accordance with an agreed-upon schedule. The
Company shall reimburse the directors for all reasonable out-of-pocket travel expenses incurred (consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. The Company shall cause to be
established, as soon as practicable after such request, and will maintain, an audit and compensation committee, each of which shall include each of the Preferred Directors (unless otherwise waived in writing by the Person(s) entitled to designate
such Preferred Director). No member of management shall participate any compensation committee meeting or discussion that pertains to his or her own compensation. 

5.7 Directors’ Liability and Indemnification. For so long as any Preferred Director serves on the board of directors of the
Company, the Company shall use commercially reasonable efforts to ensure that its Certificate of Incorporation and bylaws, collectively, provide (a) for elimination of the liability of directors to the maximum extent permitted by law and
(b) for indemnification of directors for acts on behalf of the Company to the maximum extent permitted by law, and the Company shall maintain directors’ and officers’ liability insurance reasonably satisfactory to the Majority
Investors in effect at all times. 
 5.8 Indemnification of Fund Directors. The Company hereby acknowledges that one (1) or more
of the directors nominated to serve on the board of directors of the Company by the Investors (each a “Fund Director”) may have certain rights to indemnification, advancement of expenses and/or insurance provided by one or more of
the Investors and certain of their affiliates (collectively, the “Fund Indemnitors”). The Company hereby agrees (i) that it is the indemnitor of first resort (i.e., its obligations to any Fund Director are primary and any
obligation of the Fund Indemnitors to advance expenses or to provide indemnification for the same expenses or liabilities incurred by such Fund Director are secondary), (ii) that it shall be required to advance any expenses incurred by any Fund
Director and shall be liable for any expenses, judgments, penalties, fines and amounts paid in settlement by or on behalf of any Fund Director to the extent required by the terms of the Certificate of Incorporation or bylaws of the Company (or any
agreement between the Company and such Fund Director), without regard to any rights such Fund Director may have against the Fund Indemnitors, and (iii) that it irrevocably waives, relinquishes and releases the Fund Indemnitors from any and all
claims against the Fund Indemnitors for contribution, subrogation or any other recovery of any kind in respect thereof (except as to advances that are determined to be repayable to the Company). The Company further agrees that no advancement or
payment by the Fund Indemnitors on behalf of 

  
 22 

 
any Fund Director with respect to any claim for which such Fund Director has sought indemnification from the Company shall affect the foregoing and the Fund Indemnitors shall have a right of
contribution and/or be subrogated to the extent of such advancement or payment to all of the rights of recovery of such Fund Director against the Company. The parties to this Agreement agree that any Fund Indemnitor that is not party to this
Agreement is an express third party beneficiary of the terms of this Section 5.8. 
 5.9 Successor Indemnification. If
the Company or any of its successors or assignees consolidates with or merges into any other Person and is not the continuing or surviving corporation or entity of such consolidation or merger, then to the extent necessary, proper provision shall be
made so that the successors and assignees of the Company assume the obligations of the Company with respect to indemnification of members of the Board of Directors as in effect immediately before such transaction, whether such obligations are
contained in the Company’s Bylaws, its Certificate of Incorporation, or elsewhere, as the case may be. 
 5.10 Termination of
Covenants. The covenants set forth in this Section 5, except for Sections 5.4 and 5.9, shall terminate and be of no further force or effect upon the earlier of (i) the consummation of the Company’s first
underwritten public offering of its Common Stock in which all of the Company’s Preferred Stock is converted into Common Stock, or (ii) the liquidation, dissolution and winding up of the Company or the consummation of a sale, lease,
license, transfer, conveyance or other disposition to an independent third party, directly or indirectly, in one transaction or a series of related transactions (including by way of merger, consolidation, recapitalization, reorganization or sale of
securities) of all or substantially all of the shares of capital stock of the Company or all or substantially all of the assets of the Company and its subsidiaries, taken as a whole. 

6. Miscellaneous. 
 6.1
Successors and Assigns. The rights under this Agreement may be assigned (but only with all related obligations) by a Holder to a transferee of Registrable Securities that (i) is an Affiliate of a Holder; (ii) is a Holder’s
Immediate Family Member or trust for the benefit of an individual Holder or one or more of such Holder’s Immediate Family Members; or (iii) after such transfer, holds at least 50,000 shares of Registrable Securities (subject to appropriate
adjustment for stock splits, stock dividends, combinations, and other recapitalizations); provided, however, that (x) the Company is, within a reasonable time after such transfer, furnished with written notice of the name and
address of such transferee and the Registrable Securities with respect to which such rights are being transferred; and (y) such transferee agrees in a written instrument delivered to the Company to be bound by and subject to the terms and
conditions of this Agreement, including the provisions of Section 2.11. For the purposes of determining the number of shares of Registrable Securities held by a transferee, the holdings of a transferee (1) that is an Affiliate or
stockholder of a Holder; (2) who is a Holder’s Immediate Family Member; or (3) that is a trust for the benefit of an individual Holder or such Holder’s Immediate Family Member shall be aggregated together and with those of the
transferring Holder; provided further that all transferees who would not qualify individually for assignment of rights shall have a single attorney-in-fact for the purpose of exercising any rights, receiving notices, or taking any action
under this Agreement. The terms and conditions of this 

  
 23 

 
Agreement inure to the benefit of and are binding upon the respective successors and permitted assignees of the parties. Nothing in this Agreement, express or implied, is intended to confer upon
any party other than the parties hereto or their respective successors and permitted assignees any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided herein. 

6.2 Governing Law. This Agreement and any controversy arising out of or relating to this Agreement shall be governed by and construed
in accordance with the law of the State of Delaware, without regard to conflict of law principles that would result in the application of any law other than the law of the State of Delaware. 

6.3 Counterparts; Facsimile. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but
all of which together shall constitute one and the same instrument. Counterparts may be delivered via facsimile or electronic transmission in portable document (.pdf) or tagged image file (.tif) formats and any counterpart so delivered shall be
deemed to have been duly and validly delivered and be valid and effective for all purposes. 
 6.4 Titles and Subtitles. The titles
and subtitles used in this Agreement are for convenience only and are not to be considered in construing or interpreting this Agreement. 

6.5 Notices. All notices and other communications given or made pursuant to this Agreement shall be in writing and shall be deemed
effectively given upon the earlier of actual receipt and: (i) personal delivery to the party to be notified; (ii) when sent, if sent by electronic mail or facsimile during the recipient’s normal business hours, and if not sent during
normal business hours, then on the recipient’s next business day; (iii) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid; or (iv) one (1) business day after the
business day of deposit with a nationally recognized overnight courier, freight prepaid, specifying next-day delivery. All communications shall be sent to the respective parties at their addresses as set forth on Schedule A hereto, or to
the principal office of the Company and to the attention of the Chief Executive Officer, in the case of the Company, or to such email address, facsimile number, or address as subsequently modified by written notice given in accordance with this
Section 6.5. 
 If notice is given to the Company, a copy shall also be sent to: 

Marc F. Dupré 
 Gunderson
Dettmer Stough Villeneuve Franklin & Hachigian, LLP 
 850 Winter Street 

Waltham, MA 02451 
 If notice is
given to Stockholders, a copy shall also be given to: 
 Philip P. Rossetti 

Latham & Watkins, LLP 

John Hancock Tower, 20th Floor 

200 Clarendon Street 
 Boston, MA
02116 

  
 24 

 and 

Kirkland & Ellis LLP 

300 North LaSalle Street 

Chicago, Illinois 60654 

Attention: Ted H. Zook, P.C. 

                  Brian C. Van Klompenberg, P.C. 

6.6 Amendments and Waivers. Any term of this Agreement may be amended and the observance of any term of this Agreement may be waived
(either generally or in a particular instance, and either retroactively or prospectively) only with the written consent of (a) the Company; (b) the holders of at least 75% of the Registrable Securities then outstanding; and (c) the
holders of a majority of the then outstanding shares of Series D Preferred Stock of the Company (the “Majority Series D Investors”) (provided that the consent of the Majority Series D Investors shall not be required for any
amendment or waiver if such amendment or waiver does not adversely affect the holders of Series D Preferred Stock in a manner that in the totality of circumstances is different than the effect on the holders of Series A Preferred Stock, Series B
Preferred Stock and/or Series C Preferred Stock); provided that the Company may in its sole discretion waive compliance with Section 2.12(c) (and the Company’s failure to object promptly in writing after notification of a proposed
assignment allegedly in violation of Section 2.12(c) shall be deemed to be a waiver); and provided further that any provision hereof may be waived by any waiving party on such party’s own behalf, without the consent of any other
party. Notwithstanding the foregoing, this Agreement may not be amended or terminated and the observance of any term hereof may not be waived with respect to any Investor without the written consent of such Investor, unless such amendment,
termination, or waiver applies to all Investors in the same fashion (it being agreed that a waiver of the provisions of Section 4 with respect to a particular transaction shall be deemed to apply to all Investors in the same fashion if such
waiver does so by its terms, notwithstanding the fact that certain Investors may nonetheless, by agreement with the Company, purchase securities in such transaction). The Company shall give prompt notice of any amendment or termination hereof or
waiver hereunder to any party hereto that did not consent in writing to such amendment, termination, or waiver. Any amendment, termination, or waiver effected in accordance with this Section 6.6 shall be binding on all parties hereto,
regardless of whether any such party has consented thereto. No waivers of or exceptions to any term, condition, or provision of this Agreement, in any one or more instances, shall be deemed to be or construed as a further or continuing waiver of any
such term, condition, or provision. 
 6.7 Severability. In case any one or more of the provisions contained in this Agreement is for
any reason held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provision of this Agreement, and such invalid, illegal, or unenforceable provision shall be reformed
and construed so that it will be valid, legal, and enforceable to the maximum extent permitted by law. 
 6.8 Aggregation of Stock.
All shares of Registrable Securities held or acquired by Affiliates shall be aggregated together for the purpose of determining the availability of any rights under this Agreement and such Affiliated persons may apportion such rights as among
themselves in any manner they deem appropriate. 

  
 25 

 6.9 Entire Agreement. This Agreement (including any Schedules hereto) constitutes the full
and entire understanding and agreement among the parties with respect to the subject matter hereof, and any other written or oral agreement relating to the subject matter hereof existing between the parties is expressly canceled. 

6.10 Dispute Resolution. The parties hereto (a) hereby irrevocably and unconditionally submit to the jurisdiction of the Chancery
Court of the State of Delaware, and any state appellate court therefrom within the state of Delaware (or, if the Chancery Court of the State of Delaware declines to accept jurisdiction over a particular matter, any state or federal court within the
state of Delaware), for the purpose of any suit, action or other proceeding arising out of or based upon this Agreement, (b) agree not to commence any suit, action or other proceeding arising out of or based upon this Agreement except in the
Chancery Court of the State of Delaware, and any state appellate court therefrom within the state of Delaware (or, if the Chancery Court of the State of Delaware declines to accept jurisdiction over a particular matter, any state or federal court
within the state of Delaware), and (c) hereby waive, and agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim that it is not subject personally to the jurisdiction of the
above-named courts, that its property is exempt or immune from attachment or execution, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or
the subject matter hereof may not be enforced in or by such court. 
 6.11 WAIVER OF JURY TRIAL. EACH PARTY HEREBY WAIVES ITS RIGHTS
TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS, THE SECURITIES OR THE SUBJECT MATTER HEREOF OR THEREOF. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL-ENCOMPASSING OF ANY
AND ALL DISPUTES THAT MAY BE FILED IN ANY COURT AND THAT RELATE TO THE SUBJECT MATTER OF THIS TRANSACTION, INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS, TORT CLAIMS (INCLUDING NEGLIGENCE), BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND
STATUTORY CLAIMS. THIS SECTION HAS BEEN FULLY DISCUSSED BY EACH OF THE PARTIES HERETO AND THESE PROVISIONS WILL NOT BE SUBJECT TO ANY EXCEPTIONS. EACH PARTY HERETO HEREBY FURTHER WARRANTS AND REPRESENTS THAT SUCH PARTY HAS REVIEWED THIS WAIVER WITH
ITS LEGAL COUNSEL, AND THAT SUCH PARTY KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL. 

6.12 Costs of Enforcement. If any party to this Agreement seeks to enforce its rights under this Agreement by legal proceedings, the
non-prevailing party shall pay all costs and expenses incurred by the prevailing party, including, without limitation, all reasonable attorneys’ fees. 

6.13 Delays or Omissions. No delay or omission to exercise any right, power, or remedy accruing to any party under this Agreement, upon
any breach or default of any other 

  
 26 

 
party under this Agreement, shall impair any such right, power, or remedy of such nonbreaching or nondefaulting party, nor shall it be construed to be a waiver of or acquiescence to any such
breach or default, or to any similar breach or default thereafter occurring, nor shall any waiver of any single breach or default be deemed a waiver of any other breach or default theretofore or thereafter occurring. All remedies, whether under this
Agreement or by law or otherwise afforded to any party, shall be cumulative and not alternative. 
 6.14 Acknowledgment. The Company
acknowledges that the Investors are in the business of venture capital investing and therefore review the business plans and related proprietary information of many enterprises, including enterprises which may have products or services which compete
directly or indirectly with those of the Company. Nothing in this Agreement shall preclude or in any way restrict the Investors from investing or participating in any particular enterprise whether or not such enterprise has products or services
which compete with those of the Company. 
 6.15 Additional Investors. Notwithstanding anything to the contrary contained herein,
including without limitation Section 6.6, if the Company sells additional shares of Series D Preferred Stock after the date hereof pursuant to the Series D Purchase Agreement, any purchaser of such shares of Series D Preferred Stock may become
a party to this Agreement by executing and delivering a counterpart signature page to this Agreement, and thereafter shall be deemed an “Investor” for all purposes hereunder (and Schedule A hereto shall be updated accordingly). No action
or consent by the Investors shall be required for such joinder to this Agreement by such additional Investor, so long as such additional Investor has agreed in writing to be bound by all of the obligations as an “Investor” hereunder. 

6.16 Termination of Prior Agreement. Upon the effectiveness of this Agreement, the Prior Agreement shall terminate and be of no further
force or effect, and shall be superseded and replaced in its entirety by this Agreement. 
  

  
 27 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’ Rights
Agreement as of the date first written above. 
  

			
	ACACIA COMMUNICATIONS, INC.
		
	By:	 	 /s/ Murugesan Shanmugaraj

	Name:	 	 Murugesan Shanmugaraj

	Title:	 	 President and Chief Executive Officer

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS:
	
	MATRIX PARTNERS VIII, L.P.
	
	By: Matrix VIII US Management Co., L.L.C., its General Partner
		
	Signature:	 	 /s/ Stan Reiss

	Name:	 	 Stan Reiss

		 	Managing Member
	
	WESTON & CO. VIII LLC, as Nominee
	
	By: Matrix Partners Management Services, L.P., Sole Member
	
	By: Matrix Partners Management Services GP, LLC, its General Partner
		
	Signature:	 	 /s/ Stan Reiss

	Name:	 	 Stan Reiss

		 	Authorized Member

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS:
	
	EGAN MANAGED CAPITAL III, L.P.
		
	By:	 	EMC Partners III, L.P.
		 	its General Partner
		
	By:	 	 /s/ Michael H. Shanahan

	Name:	 	Michael H. Shanahan
		 	Managing Partner
	
	B3 PROPERTIES LLC CLASS C
		
	By:	 	Caruth Management, LLC,
		 	its Manager
		
	By:	 	  

		 	Managing Member

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS:
		
	By:	 	 /s/ Gary Martin

		 	Gary Martin

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS:
	
	COMMONWEALTH CAPITAL VENTURES IV L.P.
	
	By: COMMONWEALTH VENTURE (GP) PARTNERS IV L.P., its General Partner
	
	By: COMMONWEALTH VENTURE (GP) PARTNERS IV LLC, its General Partner
		
	By:	 	 /s/ Justin Perreault

	Name:	 	Justin Perreault
		 	Manager

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS:
	
	SUMMIT PARTNERS VENTURE CAPITAL FUND III-A, L.P.
		
	By:	 	Summit Partners VC III, L.P.
	Its:	 	General Partner
		
	By:	 	Summit Partners VC III, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Peter Y. Chung

	Name:	 	Peter Y. Chung
	Title:	 	Member
	
	SUMMIT PARTNERS VENTURE CAPITAL FUND III-B, L.P.
		
	By:	 	Summit Partners VC III, L.P.
	Its:	 	General Partner
		
	By:	 	Summit Partners VC III, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Peter Y. Chung

	Name:	 	Peter Y. Chung
	Title:	 	Member

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	SUMMIT INVESTORS I, LLC
		
	By:	 	Summit Investors Management, LLC
	Its:	 	Manager
		
	By:	 	Summit Partners, L.P.
	Its:	 	Manager
		
	By:	 	Summit Master Company, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Peter Y. Chung

	Name:	 	Peter Y. Chung
	Title:	 	Member
	
	SUMMIT INVESTORS I (UK), L.P.
		
	By:	 	Summit Investors Management, LLC
	Its:	 	General Partner
		
	By:	 	Summit Partners, L.P.
	Its:	 	Manager
		
	By:	 	Summit Master Company, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Peter Y. Chung

	Name:	 	Peter Y. Chung
	Title:	 	Member

  
 SIGNATURE
PAGE TO AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

 
			
	INVESTORS
		
	By:	 	 /s/ Eric Swanson

	Name:	 	Eric Swanson

 SCHEDULE A 

Investors 
 Matrix Partners VIII,
LP 
 Bay Colony Corporate Center 
 1000 Winter Street,
Suite 4500 
 Waltham, MA 02451 
 Attn: Stan Reiss 

Phone: (781) 890-2244 
 Fax: (781) 890-2288 

Email: sreiss@matrixpartners.com 
 Weston & Co. VIII
LLC, as nominee 
 Bay Colony Corporate Center 
 1000
Winter Street, Suite 4500 
 Waltham, MA 02451 
 Attn: Stan
Reiss 
 Phone: (781) 890-2244 
 Fax: (781) 890-2288

 Email: sreiss@matrixpartners.com 
 Eric Swanson 

493 Baldwin Road 
 Carlisle, MA 01741 

OFS FITEL, LLC 
 2000 Northeast Expressway 

Norcross, GA 30071 
 Ruoding Li 

193 Davis Road 
 Carlisle, MA 01741 

John LoMedico 
 5 Zambom Terrace 

Andover, MA 01810 
 Robert Manlick 

c/o Acacia Communications, Inc. 
 3 Clock Tower Place 

Maynard, MA 01754 
 Gary Martin 

179C Lakeshore Road 
 Boxford, MA 01921 

 G&H Partners 

1200 Seaport Blvd. 
 Redwood City, CA 94063 

Raj Shanmugaraj 
 c/o Acacia Communications, Inc. 

3 Clock Tower Place 
 Maynard, MA 01754 

Commonwealth Capital Ventures IV L.P. 
 950 Winter Street,
Suite 4100 
 Waltham, MA 02451 
 Massachusetts Development
Finance Agency 
 Attn: James Kenney 
 160 Federal Street

 Boston, MA 02110 
 Phone: 617-330-2049; Fax: 617-330-2054

 Silicon Valley Bank 
 Attn: Treasury Department 

3003 Tasman Drive, HA 200 
 Santa Clara, CA 95054 

Telephone: 408-654-7400 
 Facsimile: 408-496-2405 

Egan Managed Capital III, L.P. 
 30 Federal Street 

Boston, MA 02110 
 B3 Properties LLC Class C 

c/o Egan Managed Capital 
 30 Federal Street 

Boston, MA 02110 
 Summit Partners Venture Capital Fund III-A,
L.P. 
 Summit Partners Venture Capital Fund III-B, L.P. 

Summit Investors I, LLC 
 Summit Investors I (UK), L.P.

 c/o Summit Partners, L.P. 
 200 Middlefield Road, Suite
200 
 Menlo Park, CA 94025EX-10.1

 EXHIBIT 10.1 

INDEMNIFICATION AGREEMENT 

This Indemnification Agreement (“Agreement”) is made as of [•], 2015 by and between Acacia Communications, Inc., a Delaware
corporation (the “Company”), and [•] (the “Indemnitee”). This Agreement supersedes and replaces any and all previous Agreements between the Company and Indemnitee covering the subject matter of this Agreement. 

RECITALS 
 WHEREAS, highly
competent persons have become more reluctant to serve publicly-held corporations as directors, officers or in other capacities unless they are provided with adequate protection through insurance or adequate indemnification against inordinate risks
of claims and actions against them arising out of their service to and activities on behalf of the corporation; 
 WHEREAS, the Board of
Directors of the Company (the “Board”) has determined that, in order to attract and retain qualified individuals, the Company will attempt to maintain on an ongoing basis, at its sole expense, liability insurance to protect persons serving
the Company and its subsidiaries from certain liabilities. Although the furnishing of such insurance has been a customary and widespread practice among United States-based corporations and other business enterprises, the Company believes that, given
current market conditions and trends, such insurance may be available to it in the future only at higher premiums and with more exclusions. At the same time, directors, officers, and other persons in service to corporations or business enterprises
are being increasingly subjected to expensive and time-consuming litigation relating to, among other things, matters that traditionally would have been brought only against the Company or business enterprise itself. The Certificate of Incorporation
of the Company (as the same may be amended from time to time, the “Certificate of Incorporation”) requires indemnification of the officers and directors of the Company. Indemnitee may also be entitled to indemnification pursuant to the
General Corporation Law of the State of Delaware (the “DGCL”). The Certificate of Incorporation and the DGCL expressly provide that the indemnification provisions set forth therein are not exclusive, and thereby contemplate that contracts
may be entered into between the Company and members of the board of directors, officers and other persons with respect to indemnification; 

WHEREAS, the uncertainties relating to such insurance and to indemnification have increased the difficulty of attracting and retaining such
persons; 
 WHEREAS, the Board has determined that the increased difficulty in attracting and retaining such persons is detrimental to the
best interests of the Company and its stockholders and that the Company should act to assure such persons that there will be increased certainty of such protection in the future; 

WHEREAS, it is reasonable, prudent and necessary for the Company contractually to obligate itself to indemnify, and to advance expenses on
behalf of, such persons to the fullest extent permitted by applicable law so that they will serve or continue to serve the Company free from undue concern that they will not be so indemnified; 

 WHEREAS, this Agreement is a supplement to and in furtherance of the Certificate of Incorporation
and any resolutions adopted pursuant thereto, and shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder; 

WHEREAS, Indemnitee does not regard the protection available under the Certificate of Incorporation and insurance as adequate in the present
circumstances, and may not be willing to serve as an officer or director without adequate protection, and the Company desires Indemnitee to serve in such capacity. Indemnitee is willing to serve, continue to serve and to take on additional service
for or on behalf of the Company on the condition that he be so indemnified; and 
 [WHEREAS, Indemnitee is a representative of [•] [and
its affiliated investment funds] (the “Fund”), and has certain rights to indemnification and/or insurance provided by the Fund which Indemnitee and the Fund intend to be secondary to the primary obligation of the Company to indemnify
Indemnitee as provided herein, with the Company’s acknowledgement and agreement to the foregoing being a material condition to Indemnitee’s willingness to serve on the Board;]1 

NOW, THEREFORE, in consideration of the premises and the covenants contained herein, the Company and Indemnitee do hereby covenant and agree
as follows: 
 Section 1. Services to the Company. Indemnitee agrees to serve as a[n] [director] [officer] of the Company.
Indemnitee may at any time and for any reason resign from such position (subject to any other contractual obligation or any obligation imposed by operation of law), in which event the Company shall have no obligation under this Agreement to continue
Indemnitee in such position. This Agreement shall not be deemed an employment contract between the Company (or of its subsidiaries or any Enterprise) and Indemnitee. Indemnitee specifically acknowledges that Indemnitee’s employment with the
Company (or of its subsidiaries or any Enterprise), if any, is at will, and the Indemnitee may be discharged at any time for any reason, with or without cause, except as may be otherwise provided in any written employment contract between Indemnitee
and the Company (or of its subsidiaries or any Enterprise), other applicable formal severance policies duly adopted by the Board, or, with respect to service as a director or officer of the Company, by the Certificate of Incorporation, the
Company’s Bylaws, and the DGCL. The foregoing notwithstanding, this Agreement shall continue in force after Indemnitee has ceased to serve as a[n] [director] [officer] of the Company, as provided in Section 16 hereof. 

Section 2. Definitions. As used in this Agreement: 

(a) References to “agent” shall mean any person who is or was a director, officer, or employee of the Company or a subsidiary of the
Company or other person authorized by the Company to act for the Company, to include such person serving in such capacity as a director, officer, employee, fiduciary or other official of another corporation, partnership, limited liability company,
joint venture, trust or other enterprise at the request of, for the convenience of, or to represent the interests of the Company or a subsidiary of the Company. 
  

 
 1 Include this WHEREAS clause and the other bracketed provisions throughout if the Indemnitee is affiliated with a venture capital fund or other entity that provides indemnification to the Indemnitee.

  
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 (b) A “Change in Control” shall be deemed to occur upon the earliest to occur after the
date of this Agreement of any of the following events: 
 i. Acquisition of Stock by Third Party. Any Person (as defined below), other than
the Indemnitee, or Matrix Partners or any of its affiliated funds, is or becomes the Beneficial Owner (as defined below), directly or indirectly, of securities of the Company representing twenty-five percent (25%) or more of the combined voting
power of the Company’s then outstanding securities unless the change in relative Beneficial Ownership of the Company’s securities by any Person results solely from a reduction in the aggregate number of outstanding shares of securities
entitled to vote generally in the election of directors; 
 ii. Change in Board of Directors. During any period of two (2) consecutive
years (not including any period prior to the execution of this Agreement), individuals who at the beginning of such period constitute the Board, and any new director (other than a director designated by a person who has entered into an agreement
with the Company to effect a transaction described in Sections 2(b)(i), 2(b)(iii) or 2(b)(iv)) whose election by the Board or nomination for election by the Company’s stockholders was approved by a vote of at least two-thirds of the directors
then still in office who either were directors at the beginning of the period or whose election or nomination for election was previously so approved (together, the “Incumbent Directors”), cease for any reason to constitute at least a
majority of the members of the Board; 
 iii. Corporate Transactions. The effective date of a merger or consolidation of the Company with
any other entity, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior to such merger or consolidation continuing to represent (either by remaining outstanding or by being
converted into voting securities of the surviving entity or its ultimate parent, as applicable) more than 51% of the combined voting power of the voting securities of the surviving entity or its ultimate parent, as applicable, outstanding
immediately after such merger or consolidation and with the power to elect at least a majority of the board of directors or other governing body of such surviving entity or its ultimate parent, as applicable; 

iv. Liquidation or Sale of Assets. The approval by the stockholders of the Company of a complete liquidation of the Company or an agreement
for the sale or disposition by the Company of all or substantially all of the Company’s assets; and 
 v. Other Events. There occurs
any other event of a nature that would be required to be reported in response to Item 6(e) of Schedule 14A of Regulation 14A (or a response to any similar item on any similar schedule or form) promulgated under the Exchange Act (as defined
below), whether or not the Company is then subject to such reporting requirement. 
 For purposes of this Section 2(b), the following terms shall have
the following meanings: 

  
 -3- 

 (A) “Exchange Act” shall mean the Securities Exchange Act of 1934, as
amended from time to time. 
 (B) “Person” shall have the meaning as set forth in Sections 13(d) and 14(d) of the
Exchange Act; provided, however, that Person shall exclude (i) the Company, (ii) any trustee or other fiduciary holding securities under an employee benefit plan of the Company, and (iii) any corporation owned, directly or indirectly,
by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company. 
 (C)
“Beneficial Owner” shall have the meaning given to such term in Rule 13d-3 under the Exchange Act; provided, however, that Beneficial Owner shall exclude any Person otherwise becoming a Beneficial Owner by reason of the stockholders of the
Company approving a merger of the Company with another entity. 
 (c) “Corporate Status” describes the status of a person as a
current or former director or officer of the Company or as a current or former director, manager, partner, officer, employee, agent, or trustee of any other entity or enterprise that such person is or was serving at the request of the Company. 

(d) “Disinterested Director” shall mean a director of the Company who is not and was not a party to the Proceeding in respect of
which indemnification is sought by Indemnitee. 
 (e) “Enterprise” shall mean the Company and any other corporation, limited
liability company, partnership, joint venture, trust or other enterprise of which Indemnitee is or was serving at the request of the Company as a director, officer, trustee, partner, managing member, employee, agent or fiduciary. 

(f) “Expenses” shall include all reasonable attorneys’ fees, retainers, court costs, transcript costs, fees of experts and
other professionals, witness fees, travel expenses, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, any federal, state, local or foreign taxes imposed on Indemnitee as a result of the actual or
deemed receipt of any payments under this Agreement, ERISA excise taxes and penalties, and all other disbursements or expenses of the types customarily incurred in connection with prosecuting, defending, preparing to prosecute or defend,
investigating, being or preparing to be a witness in, or otherwise participating in, a Proceeding. Expenses also shall include (i) Expenses incurred in connection with any appeal resulting from any Proceeding, including without limitation the
premium, security for, and other costs relating to any cost bond, supersedeas bond, or other appeal bond or its equivalent, and (ii) for purposes of Section 14(d) only, Expenses incurred by Indemnitee in connection with the interpretation,
enforcement or defense of Indemnitee’s rights under this Agreement, by litigation or otherwise. The parties agree that for the purposes of any advancement of Expenses for which Indemnitee has made written demand to

  
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the Company in accordance with this Agreement, all Expenses included in such demand that are certified by affidavit of Indemnitee’s counsel as being reasonable shall be presumed conclusively
to be reasonable. Expenses, however, shall not include amounts paid in settlement by Indemnitee or the amount of judgments or fines against Indemnitee. 

(g) “Independent Counsel” shall mean a law firm, or a member of a law firm, that is experienced in matters of corporation law and
neither presently is, nor in the past five years has been, retained to represent: (i) the Company or Indemnitee in any matter material to either such party (other than with respect to matters concerning the Indemnitee under this Agreement, or
of other indemnitees under similar indemnification agreements), or (ii) any other party to the Proceeding giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not
include any person who, under the applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the Company or Indemnitee in an action to determine Indemnitee’s rights under this
Agreement. The Company agrees to pay the reasonable fees and expenses of the Independent Counsel referred to above and to fully indemnify such counsel against any and all Expenses, claims, liabilities and damages arising out of or relating to this
Agreement or its engagement pursuant hereto. 
 (h) The term “Proceeding” shall include any threatened, pending or completed
action, suit, claim, counterclaim, cross claim, arbitration, mediation, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether occurring before, on or
after the date of this Agreement and whether brought in the right of the Company or otherwise and whether of a civil, criminal, administrative, legislative, or investigative (formal or informal) nature, including any appeal therefrom, in which
Indemnitee was, is or will be involved as a party, potential party, non-party witness or otherwise by reason of the fact that Indemnitee is or was a director or officer of the Company, by reason of any action taken by him (or a failure to take
action by him) or of any action (or failure to act) on his part while acting pursuant to his Corporate Status, in each case whether or not serving in such capacity at the time any liability or Expense is incurred for which indemnification,
reimbursement, or advancement of Expenses can be provided under this Agreement. If the Indemnitee believes in good faith that a given situation may lead to or culminate in the institution of a Proceeding, this shall be considered a Proceeding under
this paragraph. 
 (i) Reference to “other enterprise” shall include employee benefit plans; references to “fines” shall
include any excise tax assessed with respect to any employee benefit plan; references to “serving at the request of the Company” shall include any service as a director, officer, employee or agent of the Company which imposes duties on, or
involves services by, such director, officer, employee or agent with respect to an employee benefit plan, its participants or beneficiaries; and a person who acted in good faith and in a manner he reasonably believed to be in the best interests of
the participants and beneficiaries of an employee benefit plan shall be deemed to have acted in manner “not opposed to the best interests of the Company” as referred to in this Agreement. 

  
 -5- 

 Section 3. Indemnity in Third-Party Proceedings. The Company shall indemnify
Indemnitee in accordance with the provisions of this Section 3 if Indemnitee is, or is threatened to be made, a party to or a participant in any Proceeding, other than a Proceeding by or in the right of the Company to procure a judgment in its
favor. Pursuant to this Section 3, Indemnitee shall be indemnified to the fullest extent permitted by applicable law against all Expenses, judgments, fines and amounts paid in settlement (including all interest, assessments and other charges
paid or payable in connection with or in respect of such Expenses, judgments, fines and amounts paid in settlement) actually and reasonably incurred by Indemnitee or on his behalf in connection with such Proceeding or any claim, issue or matter
therein, if Indemnitee acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the Company and, in the case of a criminal Proceeding had no reasonable cause to believe that his conduct was
unlawful. The parties hereto intend that this Agreement shall provide to the fullest extent permitted by law for indemnification in excess of that expressly permitted by statute, including, without limitation, any indemnification provided by the
Certificate of Incorporation, the Bylaws, vote of its stockholders or disinterested directors or applicable law. 
 Section 4.
Indemnity in Proceedings by or in the Right of the Company. The Company shall indemnify Indemnitee in accordance with the provisions of this Section 4 if Indemnitee is, or is threatened to be made, a party to or a participant in any
Proceeding by or in the right of the Company to procure a judgment in its favor. Pursuant to this Section 4, Indemnitee shall be indemnified to the fullest extent permitted by applicable law against all Expenses actually and reasonably incurred
by him or on his behalf in connection with such Proceeding or any claim, issue or matter therein, if Indemnitee acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the Company. No
indemnification for Expenses shall be made under this Section 4 in respect of any claim, issue or matter as to which Indemnitee shall have been finally adjudged by a court to be liable to the Company, unless and only to the extent that the
Delaware Court of Chancery (the “Delaware Court”) or any court in which the Proceeding was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, Indemnitee is
fairly and reasonably entitled to indemnification for such expenses as the Delaware Court shall deem proper. 
 Section 5.
Indemnification for Expenses of a Party Who is Wholly or Partly Successful. Notwithstanding any other provisions of this Agreement, to the fullest extent permitted by applicable law and to the extent that Indemnitee is a party to (or a
participant in) and is successful, on the merits or otherwise, in any Proceeding or in defense of any claim, issue or matter therein, in whole or in part, the Company shall indemnify Indemnitee against all Expenses actually and reasonably incurred
by him in connection therewith. If Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or otherwise, as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall indemnify
Indemnitee against all Expenses actually and reasonably incurred by him or on his behalf in connection with or related to each successfully resolved claim, issue or matter to the fullest extent permitted by law. For purposes of this Section and
without limitation, the termination of any claim, issue or matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to be a successful result as to such claim, issue or matter. 

  
 -6- 

 Section 6. Indemnification For Expenses of a Witness. Notwithstanding any other
provision of this Agreement, to the fullest extent permitted by applicable law and to the extent that Indemnitee is, by reason of his Corporate Status, a witness or otherwise asked to participate in any Proceeding to which Indemnitee is not a party,
he shall be indemnified against all Expenses actually and reasonably incurred by him or on his behalf in connection therewith. 

Section 7. Partial Indemnification. If Indemnitee is entitled under any provision of this Agreement to indemnification by the
Company for some or a portion of Expenses, but not, however, for the total amount thereof, the Company shall nevertheless indemnify Indemnitee for the portion thereof to which Indemnitee is entitled. 

Section 8. Additional Indemnification. 

(a) Notwithstanding any limitation in Sections 3, 4, or 5, the Company shall indemnify Indemnitee to the fullest extent permitted by
applicable law if Indemnitee is a party to or threatened to be made a party to any Proceeding (including a Proceeding by or in the right of the Company to procure a judgment in its favor) against all Expenses, judgments, fines and amounts paid in
settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of such Expenses, judgments, fines and amounts paid in settlement) actually and reasonably incurred by Indemnitee in connection with
the Proceeding. 
 (b) For purposes of Section 8(a), the meaning of the phrase “to the fullest extent permitted by applicable
law” shall include, but not be limited to: 
 i. to the fullest extent permitted by the provision of the DGCL that authorizes or
contemplates additional indemnification by agreement, or the corresponding provision of any amendment to or replacement of the DGCL, and 

ii. to the fullest extent authorized or permitted by any amendments to or replacements of the DGCL adopted after the date of this Agreement
that increase the extent to which a corporation may indemnify its officers and directors. 
 Section 9. Exclusions.
Notwithstanding any provision in this Agreement [but subject to Section 15(e), however], the Company shall not be obligated under this Agreement to make any indemnification payment in connection with any claim made against Indemnitee: 

(a) for which payment has actually been made to or on behalf of Indemnitee under any insurance policy or other indemnity provision, except
with respect to any excess beyond the amount paid under any insurance policy or other indemnity provision; or 
 (b) for (i) an
accounting of profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company within the meaning of Section 16(b) of the Exchange Act (as defined in Section 2(b) hereof) or similar provisions of
state statutory law or common law, or (ii) any reimbursement of the Company by the Indemnitee of any bonus or other incentive-based or equity-based compensation or of any profits realized by the Indemnitee from the sale of securities of the
Company, as required in each case under the 

  
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Exchange Act (including any such reimbursements that arise from an accounting restatement of the Company pursuant to Section 304 of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley
Act”), or the payment to the Company of profits arising from the purchase and sale by Indemnitee of securities in violation of Section 306 of the Sarbanes-Oxley Act); or 

(c) except as provided in Section 14(d) of this Agreement, in connection with any Proceeding (or any part of any Proceeding) initiated by
Indemnitee, including any Proceeding (or any part of any Proceeding) initiated by Indemnitee against the Company or its directors, officers, employees or other indemnitees, unless (i) the Board authorized the Proceeding (or any part of any
Proceeding) prior to its initiation or (ii) the Company provides the indemnification, in its sole discretion, pursuant to the powers vested in the Company under applicable law. 

Section 10. Advances of Expenses. Notwithstanding any provision of this Agreement to the contrary (other than Section 14(d)),
the Company shall advance, to the extent not prohibited by law, the Expenses incurred by Indemnitee in connection with any Proceeding (or any part of any Proceeding) not initiated by Indemnitee, and such advancement shall be made within thirty
(30) days after the receipt by the Company of a statement or statements requesting such advances from time to time, whether prior to or after final disposition of any Proceeding. Advances shall be unsecured and interest free. Advances shall be
made without regard to Indemnitee’s ability to repay the Expenses and without regard to Indemnitee’s ultimate entitlement to indemnification under the other provisions of this Agreement. In accordance with Section 14(d), advances
shall include any and all reasonable Expenses incurred pursuing an action to enforce this right of advancement, including Expenses incurred preparing and forwarding statements to the Company to support the advances claimed. The Indemnitee shall
qualify for advances upon the execution and delivery to the Company of this Agreement, which shall constitute an undertaking providing that the Indemnitee undertakes to repay the amounts advanced (without interest) to the extent that it is
ultimately determined by final judicial decision from which there is no further right to appeal that Indemnitee is not entitled to be indemnified by the Company. No other form of undertaking shall be required other than the execution of this
Agreement. This Section 10 shall not apply to any claim made by Indemnitee for which indemnity is excluded pursuant to Section 9. 

Section 11. Procedure for Notification and Defense of Claim. Indemnitee shall notify the Company in writing of any matter with
respect to which Indemnitee intends to seek indemnification or advancement of Expenses hereunder as soon as reasonably practicable following the receipt by Indemnitee of written notice thereof. The written notification to the Company shall include a
description of the nature of the Proceeding and the facts underlying the Proceeding. To obtain indemnification under this Agreement, Indemnitee shall submit to the Company a written request, including therein or therewith such documentation and
information as is reasonably available to Indemnitee and is reasonably necessary to determine whether and to what extent Indemnitee is entitled to indemnification following the final disposition of such Proceeding; provided, that Indemnitee shall
not be required to provide any documentation or information to the extent that the provision thereof could undermine or otherwise jeopardize attorney-client privilege. The omission by Indemnitee to notify the Company hereunder will not

  
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relieve the Company from any liability which it may have to Indemnitee hereunder or otherwise than under this Agreement, and any delay in so notifying the Company shall not constitute a waiver by
Indemnitee of any rights under this Agreement. The Secretary of the Company shall, promptly upon receipt of such a request for indemnification, advise the Board in writing that Indemnitee has requested indemnification. 

Section 12. Procedure Upon Application for Indemnification.  

(a) Upon written request by Indemnitee for indemnification pursuant to Section 11(a), a determination, if required by applicable law,
with respect to Indemnitee’s entitlement thereto shall be made in the specific case: (i) if a Change in Control shall have occurred, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered to
Indemnitee; or (ii) if a Change in Control shall not have occurred, (A) by a majority vote of the Disinterested Directors, even though less than a quorum of the Board, (B) by a committee of Disinterested Directors designated by a
majority vote of the Disinterested Directors, even though less than a quorum of the Board, (C) if there are no such Disinterested Directors or, if such Disinterested Directors so direct, by Independent Counsel in a written opinion to the Board,
a copy of which shall be delivered to Indemnitee or (D) if so directed by the Board, by the stockholders of the Company; and, if it is so determined that Indemnitee is entitled to indemnification, payment to Indemnitee shall be made within ten
(10) days after such determination. Indemnitee shall cooperate with the person, persons or entity making such determination with respect to Indemnitee’s entitlement to indemnification, including providing to such person, persons or entity
upon reasonable advance request any documentation or information which is not privileged or otherwise protected from disclosure and which is reasonably available to Indemnitee and reasonably necessary to such determination. Any costs or Expenses
(including attorneys’ fees and disbursements) incurred by Indemnitee in so cooperating with the person, persons or entity making such determination shall be borne by the Company (irrespective of the determination as to Indemnitee’s
entitlement to indemnification) and the Company hereby indemnifies and agrees to hold Indemnitee harmless therefrom. The Company promptly will advise Indemnitee in writing with respect to any determination that Indemnitee is or is not entitled to
indemnification, including a description of any reason or basis for which indemnification has been denied. 
 (b) In the event the
determination of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 12(a) hereof, the Independent Counsel shall be selected as provided in this Section 12(b). If a Change in Control shall not have
occurred, the Independent Counsel shall be selected by the Board, and the Company shall give written notice to Indemnitee advising him of the identity of the Independent Counsel so selected. If a Change in Control shall have occurred, the
Independent Counsel shall be selected by Indemnitee (unless Indemnitee shall request that such selection be made by the Board, in which event the preceding sentence shall apply), and Indemnitee shall give written notice to the Company advising it of
the identity of the Independent Counsel so selected. In either event, Indemnitee or the Company, as the case may be, may, within ten (10) days after such written notice of selection shall have been given, deliver to the Company or to
Indemnitee, as the case may be, a written objection to such selection; provided, however, that such objection may be asserted only on the ground that the 

  
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Independent Counsel so selected does not meet the requirements of “Independent Counsel” as defined in Section 2 of this Agreement, and the objection shall set forth with
particularity the factual basis of such assertion. Absent a proper and timely objection, the person so selected shall act as Independent Counsel. If such written objection is so made and substantiated, the Independent Counsel so selected may not
serve as Independent Counsel unless and until such objection is withdrawn or the Delaware Court has determined that such objection is without merit. If, within twenty (20) days after the later of submission by Indemnitee of a written request
for indemnification pursuant to Section 11(a) hereof and the final disposition of the Proceeding, no Independent Counsel shall have been selected and not objected to, either the Company or Indemnitee may petition the Delaware Court for
resolution of any objection which shall have been made by the Company or Indemnitee to the other’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by such court or by such other person as
such court shall designate, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel under Section 12(a) hereof. Upon the due commencement of any judicial proceeding or
arbitration pursuant to Section 14(a) of this Agreement, Independent Counsel shall be discharged and relieved of any further responsibility in such capacity (subject to the applicable standards of professional conduct then prevailing). 

Section 13. Presumptions and Effect of Certain Proceedings. 

(a) In making a determination with respect to entitlement to indemnification hereunder, the person or persons or entity making such
determination shall, to the fullest extent not prohibited by law, presume that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in accordance with Section 11(a) of this
Agreement, and the Company shall, to the fullest extent not prohibited by law, have the burden of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption.
Neither the failure of the Company (including by its directors or Independent Counsel) to have made a determination prior to the commencement of any action pursuant to this Agreement that indemnification is proper in the circumstances because
Indemnitee has met the applicable standard of conduct, nor an actual determination by the Company (including by its directors or Independent Counsel) that Indemnitee has not met such applicable standard of conduct, shall be a defense to the action
or create a presumption that Indemnitee has not met the applicable standard of conduct. 
 (b) Subject to Section 14(e), if the person,
persons or entity empowered or selected under Section 12 of this Agreement to determine whether Indemnitee is entitled to indemnification shall not have made a determination within thirty (30) days after receipt by the Company of the
request therefor, the requisite determination of entitlement to indemnification shall, to the fullest extent not prohibited by law, be deemed to have been made and Indemnitee shall be entitled to such indemnification, absent (i) a misstatement
by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification under
applicable law; provided, however, that such 30-day period may be extended for a reasonable time, not to exceed an additional fifteen (15) days, if the person, 

  
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persons or entity making the determination with respect to entitlement to indemnification in good faith requires such additional time for the obtaining or evaluating of documentation and/or
information relating thereto; and provided, further, that the foregoing provisions of this Section 13(b) shall not apply (i) if the determination of entitlement to indemnification is to be made by the stockholders pursuant to
Section 12(a) of this Agreement and if (A) within fifteen (15) days after receipt by the Company of the request for such determination the Board has resolved to submit such determination to the stockholders for their consideration at
an annual meeting thereof to be held within seventy-five (75) days after such receipt and such determination is made thereat, or (B) a special meeting of stockholders is called within fifteen (15) days after such receipt for the
purpose of making such determination, such meeting is held for such purpose within sixty (60) days after having been so called and such determination is made thereat, or (ii) if the determination of entitlement to indemnification is to be
made by Independent Counsel pursuant to Section 12(a) of this Agreement. 
 (c) The termination of any Proceeding or of any claim,
issue or matter therein, by judgment, order, settlement or conviction, or upon a plea of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of
Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith and in a manner which he reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal Proceeding,
that Indemnitee had reasonable cause to believe that his conduct was unlawful. 
 (d) For purposes of any determination of good faith,
Indemnitee shall be deemed to have acted in good faith if Indemnitee’s action is based on the records or books of account of the Enterprise, including financial statements, or on information supplied to Indemnitee by the directors or officers
of the Enterprise in the course of their duties, or on the advice of legal counsel for the Enterprise or on information or records given or reports made to the Enterprise by an independent certified public accountant or by an appraiser or other
expert selected with the reasonable care by the Enterprise. The provisions of this Section 13(d) shall not be deemed to be exclusive or to limit in any way the other circumstances in which the Indemnitee may be deemed to have met the applicable
standard of conduct set forth in this Agreement. 
 (e) The knowledge and/or actions, or failure to act, of any director, officer, trustee,
partner, managing member, fiduciary, agent or employee of the Enterprise shall not be imputed to Indemnitee for purposes of determining the right to indemnification under this Agreement. 

Section 14. Remedies of Indemnitee. 

(a) Subject to Section 14(e), in the event that (i) a determination is made pursuant to Section 12 of this Agreement that
Indemnitee is not entitled to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 10 of this Agreement, (iii) no determination of entitlement to indemnification shall have been
made pursuant to Section 12(a) of this Agreement within ninety (90) days after receipt by the 

  
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Company of the request for indemnification, (iv) payment of indemnification is not made pursuant to Section 5, 6 or 7 or the last sentence of Section 12(a) of this Agreement within
ten (10) days after receipt by the Company of a written request therefor, (v) payment of indemnification pursuant to Section 3, 4 or 8 of this Agreement is not made within ten (10) days after a determination has been made that
Indemnitee is entitled to indemnification, or (vi) in the event that the Company or any other person takes or threatens to take any action to declare this Agreement void or unenforceable, or institutes any litigation or other action or
Proceeding designed to deny, or to recover from, the Indemnitee the benefits provided or intended to be provided to the Indemnitee hereunder, Indemnitee shall be entitled to an adjudication by a court of his entitlement to such indemnification or
advancement of Expenses. Alternatively, Indemnitee, at his option, may seek an award in arbitration to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the American Arbitration Association. The Company shall not
oppose Indemnitee’s right to seek any such adjudication or award in arbitration. 
 (b) In the event that a determination shall have
been made pursuant to Section 12(a) of this Agreement that Indemnitee is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 14 shall be conducted in all respects as a de novo
trial, or arbitration, on the merits and Indemnitee shall not be prejudiced by reason of that adverse determination. In any judicial proceeding or arbitration commenced pursuant to this Section 14, the Company shall have the burden of proving
Indemnitee is not entitled to indemnification or advancement of Expenses, as the case may be. 
 (c) If a determination shall have been made
pursuant to Section 12(a) of this Agreement that Indemnitee is entitled to indemnification, the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant to this Section 14, absent (i) a
misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such
indemnification under applicable law. 
 (d) The Company shall, to the fullest extent not prohibited by law, be precluded from asserting in
any judicial proceeding or arbitration commenced pursuant to this Section 14 that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court or before any such arbitrator that
the Company is bound by all the provisions of this Agreement. It is the intent of the Company that, to the fullest extent permitted by law, the Indemnitee not be required to incur legal fees or other Expenses associated with the interpretation,
enforcement or defense of Indemnitee’s rights under this Agreement by litigation or otherwise because the cost and expense thereof would substantially detract from the benefits intended to be extended to the Indemnitee hereunder. The Company
shall, to the fullest extent permitted by law, indemnify Indemnitee against any and all Expenses and, if requested by Indemnitee, shall (within ten (10) days after receipt by the Company of a written request therefor) advance, to the extent not
prohibited by law, such Expenses to Indemnitee, which are incurred by Indemnitee in connection with any action brought by Indemnitee for indemnification or advance of Expenses from the Company under this Agreement, the constituent documents of the
Company now or hereafter in effect or under any 

  
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directors’ and officers’ liability insurance policies maintained by the Company if, in the case of indemnification, Indemnitee is wholly successful on the underlying claims; if
Indemnitee is not wholly successful on the underlying claims, then such indemnification shall be only to the extent Indemnitee is successful on such underlying claims or otherwise as permitted by law, whichever is greater. 

(e) Notwithstanding anything in this Agreement to the contrary, no determination as to entitlement of Indemnitee to indemnification under this
Agreement shall be required to be made prior to the final disposition of the Proceeding. 
 Section 15. Non-exclusivity; Survival of
Rights; Insurance; Subrogation. 
 (a) The rights of indemnification and to receive advancement of Expenses as provided by this
Agreement shall not be deemed exclusive of any other rights to which Indemnitee may at any time be entitled under applicable law, the Certificate of Incorporation, the Bylaws, any agreement, a vote of stockholders or a resolution of directors, or
otherwise. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict any right of Indemnitee under this Agreement in respect of any action taken or omitted by such Indemnitee in his Corporate Status
prior to such amendment, alteration or repeal. To the extent that a change in Delaware law, whether by statute or judicial decision, permits greater indemnification or advancement of Expenses than would be afforded currently under the Certificate of
Incorporation and this Agreement, it is the intent of the parties hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change. No right or remedy herein conferred is intended to be exclusive of any other
right or remedy, and every other right and remedy shall be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other right or remedy. 
 (b) For the duration of
Indemnitee’s service as a director and/or officer of the Company, and thereafter for so long as Indemnitee shall be subject to any pending or possible Proceeding, the Company shall use commercially reasonable efforts (taking into account the
scope and amount of coverage available relative to the cost thereof) to cause to be maintained in effect policies of directors’ and officers’ liability insurance providing coverage for directors and/or officers of the Company that is at
least substantially comparable in scope and amount to that provided by the Company’s current policies of directors’ and officers’ liability insurance or that provided in accordance with the next sentence, if greater. Prior to the
occurrence of an initial public offering or any other material transaction which the Board of Directors believes may change the nature, scope or magnitude of directors’ potential liability, the Company agrees to undertake a review of the
adequacy of its directors’ and officers’ liability insurance coverage, and to make such adjustments thereto as may be reasonable or necessary in light of such impending transaction(s). If requested, the Company shall provide Indemnitee
with a copy of all directors’ and officers’ liability insurance applications, binders, policies, declarations, endorsements and other related materials, and shall provide Indemnitee with a reasonable opportunity to review and comment on
the same. Without limiting the generality or effect of the 

  
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two immediately preceding sentences, the Company shall not discontinue or significantly reduce the scope or amount of coverage from one policy period to the next (i) without the prior
approval thereof by a majority vote of the Incumbent Directors, even if less than a quorum, or (ii) if at the time that any such discontinuation or significant reduction in the scope or amount of coverage is proposed there are no Incumbent
Directors, without the prior written consent of Indemnitee (which consent shall not be unreasonably withheld or delayed). In all policies of directors’ and officers’ liability insurance obtained by the Company, Indemnitee shall be named as
an insured in such a manner as to provide Indemnitee the same rights and benefits, subject to the same limitations, as are accorded to the Company’s directors and officers most favorably insured by such policy. The Company may, but shall not be
required to, create a trust fund, grant a security interest or use other means, including without limitation a letter of credit, to ensure the payment of such amounts as may be necessary to satisfy its obligations to indemnify and advance expenses
pursuant to this Agreement. If, at the time of the receipt of a notice of a claim pursuant to the terms hereof, the Company has director and officer liability insurance in effect, the Company shall give prompt notice of such claim or of the
commencement of a Proceeding, as the case may be, to the insurers in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable action to cause such insurers to pay, on behalf of
the Indemnitee, all amounts payable as a result of such Proceeding in accordance with the terms of such policies. 
 (c) In the event of any
payment under this Agreement, the Company shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee [(other than any rights of recovery of Indemnitee from a Fund Indemnitor or under any insurance provided by
the Fund or its affiliates)], who shall execute all papers required and take all action necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights. 

(d) [Except as provided for under Section 15(e) of this Agreement, the] The Company shall not be liable under this Agreement to make any
payment of amounts otherwise indemnifiable (or for which advancement is provided hereunder) hereunder if and to the extent that Indemnitee has otherwise actually received such payment under any insurance policy, contract, agreement or otherwise.

 (e) [The Company hereby acknowledges that Indemnitee has certain rights to indemnification, advancement of expenses and/or insurance
provided by the Fund and certain of its affiliates (collectively, the “Fund Indemnitors”). The Company hereby agrees (i) that it is the indemnitor of first resort (i.e., its obligations to Indemnitee are primary and any obligation of
the Fund Indemnitors to advance expenses or to provide indemnification for the same expenses or liabilities incurred by Indemnitee are secondary), (ii) that it shall be required to advance the full amount of Expenses incurred by Indemnitee and
shall be liable for the full amount of all Expenses, judgments, penalties, fines and amounts paid in settlement to the extent legally permitted and as required by the Certificate of Incorporation or Bylaws (or any agreement between the Company and
Indemnitee), without regard to any rights Indemnitee may have against the Fund Indemnitors, and, (iii) that it irrevocably waives, relinquishes and releases the Fund Indemnitors from any and all claims against the Fund Indemnitors for
contribution, 

  
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subrogation or any other recovery of any kind in respect thereof. The Company further agrees that no advancement or payment by the Fund Indemnitors on behalf of Indemnitee with respect to any
claim for which Indemnitee has sought indemnification from the Company shall affect the foregoing and the Fund Indemnitors shall have a right of contribution and/or be subrogated to the extent of such advancement or payment to all of the rights of
recovery of Indemnitee against the Company. The Company and Indemnitee agree that the Fund Indemnitors are express third party beneficiaries of the terms hereof.] 

Section 16. Duration of Agreement. This Agreement shall continue during the period Indemnitee serves as a director or officer of
the Company or as a director, officer, trustee, partner, managing member, fiduciary, employee or agent of any other corporation, partnership, joint venture, trust, employee benefit plan or other Enterprise which Indemnitee serves at the request of
the Company and shall continue thereafter so long as Indemnitee may be subject to any possible Proceeding (including any rights of appeal thereto and any Proceeding commenced by Indemnitee pursuant to Section 14 of this Agreement [or by a Fund
Indemnitor pursuant to Section 15(e) of this Agreement]) by reason of his or her Corporate Status, whether or not he or she is acting in any such capacity at the time any liability or expense is incurred for which indemnification can be
provided under this Agreement. The indemnification and advancement of expenses rights provided by or granted pursuant to this Agreement shall be binding upon and be enforceable by the parties hereto and their respective successors and assigns
(including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business or assets of the Company), shall continue as to an Indemnitee who has ceased to be a director, officer, employee
or agent of the Company or of any other Enterprise, and shall inure to the benefit of Indemnitee and his or her spouse, assigns, heirs, devisees, executors and administrators and other legal representatives. 

Section 17. Severability. If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable
for any reason whatsoever: (a) the validity, legality and enforceability of the remaining provisions of this Agreement (including without limitation, each portion of any Section of this Agreement containing any such provision held to be
invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest extent permitted by law; (b) such provision or provisions
shall be deemed reformed to the extent necessary to conform to applicable law and to give the maximum effect to the intent of the parties hereto; and (c) to the fullest extent possible, the provisions of this Agreement (including, without
limitation, each portion of any Section of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall be construed so as to give effect to the intent
manifested thereby. 
 Section 18. Enforcement. 

(a) The Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby in
order to induce Indemnitee to serve as a director or officer of the Company, and the Company acknowledges that Indemnitee is relying upon this Agreement in serving as a director or officer of the Company. 

  
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 (b) This Agreement constitutes the entire agreement between the parties hereto with respect to
the subject matter hereof and supersedes all prior agreements and understandings, oral, written and implied, between the parties hereto with respect to the subject matter hereof; provided, however, that this Agreement is a supplement to and in
furtherance of the Certificate of Incorporation, the Bylaws and applicable law, and shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder. 

Section 19. Modification and Waiver. No supplement, modification or amendment of this Agreement shall be binding unless executed
in writing by the parties hereto. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provisions of this Agreement nor shall any waiver constitute a continuing waiver. 

Section 20. Notice by Indemnitee. Indemnitee agrees promptly to notify the Company in writing upon being served with any summons,
citation, subpoena, complaint, indictment, information or other document relating to any Proceeding or matter which may be subject to indemnification or advancement of Expenses covered hereunder. The failure of Indemnitee to so notify the Company
shall not relieve the Company of any obligation which it may have to the Indemnitee under this Agreement or otherwise. 
 Section 21.
Notices. All notices, requests, demands and other communications under this Agreement shall be in writing and shall be deemed to have been duly given if (a) delivered by hand and receipted for by the party to whom said notice or other
communication shall have been directed, (b) mailed by certified or registered mail with postage prepaid, on the third business day after the date on which it is so mailed, (c) mailed by reputable overnight courier and receipted for by the
party to whom said notice or other communication shall have been directed or (d) sent by facsimile transmission, with receipt of oral confirmation that such transmission has been received: 

(a) If to Indemnitee, at the address indicated on the signature page of this Agreement, or such other address as Indemnitee shall provide to
the Company. 
 (b) If to the Company to: 

Acacia Communications, Inc. 

Three Clock Tower Place, Suite 100 

Maynard, MA 01754 
 Attention:
General Counsel 
 or to any other address as may have been furnished to Indemnitee by the Company. 

Section 22. Contribution. To the fullest extent permissible under applicable law, if the indemnification provided for in this
Agreement is unavailable to Indemnitee for any reason whatsoever, the Company, in lieu of indemnifying Indemnitee, shall contribute to the amount incurred by Indemnitee, whether for judgments, fines, penalties, excise taxes, amounts paid or to be
paid in settlement and/or for Expenses, in connection with any claim relating to an indemnifiable event under this Agreement, in such proportion as is deemed fair and reasonable in 

  
 -16- 

 
light of all of the circumstances of such Proceeding in order to reflect (i) the relative benefits received by the Company, on the one hand, and Indemnitee, on the other hand, as a result of
the event(s) and/or transaction(s) giving cause to such Proceeding; and/or (ii) the relative fault of the Company (and its other directors, officers, employees and agents), on the one hand, and Indemnitee, on the other hand, in connection with
such event(s) and/or transaction(s). 
 Section 23. Applicable Law and Consent to Jurisdiction. This Agreement and the legal
relations among the parties shall be governed by, and construed and enforced in accordance with, the laws of the State of Delaware, without regard to its conflict of laws rules. Except with respect to any arbitration commenced by Indemnitee pursuant
to Section 14(a) of this Agreement, the Company and Indemnitee hereby irrevocably and unconditionally (i) agree that any action or proceeding arising out of or in connection with this Agreement shall be brought only in the Delaware Court,
and not in any other state or federal court in the United States of America or any court in any other country, (ii) consent to submit to the exclusive jurisdiction of the Delaware Court for purposes of any action or proceeding arising out of or
in connection with this Agreement, (iii) appoint, to the extent such party is not otherwise subject to service of process in the State of Delaware, irrevocably the Corporation Trust Center as its agent in the State of Delaware as such
party’s agent for acceptance of legal process in connection with any such action or proceeding against such party with the same legal force and validity as if served upon such party personally within the State of Delaware, (iv) waive any
objection to the laying of venue of any such action or proceeding in the Delaware Court, and (v) waive, and agree not to plead or to make, any claim that any such action or proceeding brought in the Delaware Court has been brought in an
improper or inconvenient forum. 
 Section 24. Identical Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall for all purposes be deemed to be an original but all of which together shall constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs to be
produced to evidence the existence of this Agreement. 
 Section 25. Miscellaneous. Use of the masculine pronoun shall be deemed
to include usage of the feminine pronoun where appropriate. The headings of this Agreement are inserted for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction thereof. 

[The remainder of this page is intentionally left blank.] 

  
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 The parties executed this Agreement as of the day and year first set forth above. 

 

			
	ACACIA COMMUNICATIONS, INC.
		
	By:	 	 
	Name:	 	
	Office:	 	

  

	
	INDEMNITEE
	
	   

	Name:

  

			
	Address:

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