Document:

First Amendment, dated as of March 15, 2011, to the Credit Agreement

 Exhibit 10.1 
 FIRST AMENDMENT 
 FIRST AMENDMENT, dated as of March 15, 2011 (this
“Amendment”), to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among UNIVERSAL HEALTH SERVICES, INC., a Delaware corporation (the “Borrower”), the several banks
and other financial institutions from time to time parties thereto (the “Lenders”), JPMORGAN CHASE BANK, N.A., as administrative agent (the “Administrative Agent”) and the other agents party thereto. J.P. MORGAN
SECURITIES LLC (“JPMorgan”), Deutsche Bank Securities Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated are acting as the joint lead arrangers and joint bookrunners in connection with this Amendment and the
Amended Term Loan Facilities referred to below. 
 W I T N E S S E
T H 
 WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to make, and have made, certain loans
and other extensions of credit to the Borrower. 
 WHEREAS, the Borrower has requested (i) that the Lenders effect certain
modifications to the Credit Agreement as described herein, (ii) that the outstanding Tranche A Term Loans be replaced with a new term facility (the “Amended Tranche A Term Loan Facility”) by obtaining New Tranche A Term Loan
Commitments (as defined in Section 4 of this Amendment) and having existing Tranche A Term Loans be continued as provided herein and (iii) that the outstanding Tranche B Term Loans be replaced with a new term facility (the “Amended
Tranche B Term Loan Facility” and, together with the Amended Tranche A Term Loan Facility, the “Amended Term Loan Facilities”) by obtaining New Tranche B Term Loan Commitments (as defined in Section 4 of this
Amendment) and having existing Tranche B Term Loans be continued as provided herein. 
 WHEREAS, the loans under (i) the
Amended Tranche A Term Loan Facility (the “New Tranche A Term Loans”) will replace and refinance the currently outstanding Tranche A Term Loans and are collectively intended to be Replacement Term Loans with respect to the Tranche A
Term Loans, as contemplated in the third paragraph of Section 10.1 of the Credit Agreement and (ii) the Amended Tranche B Term Loan Facility (the “New Tranche B Term Loans” and, together with the New Tranche A Term Loans,
the “New Term Loans”) will replace and refinance the currently outstanding Tranche B Term Loans and are collectively intended to be Replacement Term Loans with respect to the Tranche B Term Loans, as contemplated in the third
paragraph of Section 10.1 of the Credit Agreement. 
 WHEREAS, except as otherwise provided herein, the New Tranche A Term
Loans will have the same terms as the Tranche A Loans currently outstanding under the Credit Agreement, and the New Tranche B Term Loans will have the same terms as the Tranche B Term Loans currently outstanding under the Credit Agreement.

 WHEREAS, each existing Tranche A Term Lender that executes and delivers a signature page to this Amendment (a “Lender
Addendum”) and in connection therewith agrees to continue all of its outstanding Tranche A Term Loans as New Tranche A Term Loans (such continued Tranche A Term Loans, the “Continued Tranche A Term Loans”, and such Lenders,
collectively, the “Continuing Tranche A Term Lenders”) will thereby (i) agree to the terms of this Amendment and (ii) agree to continue all of its existing Tranche A Term Loans (such existing Tranche A Term Loans, the
“Existing Tranche A Term Loans”, and the Lenders of such Existing Tranche A Term Loans, collectively, the “Existing Tranche A Term Lenders”) outstanding on the Amendment Effective Date (as defined below) as New
Tranche A Term Loans in a principal amount equal to the aggregate principal amount of such Existing Tranche A Term Loans so continued, as recorded in the Register. Existing Tranche A Term Lenders that do not become Continuing Tranche A Term Lenders
as contemplated by this recital shall not otherwise be 

 
permitted to become an Additional Tranche A Term Lender (as defined below). Existing Tranche A Term Lenders that, in their capacity as Revolving Lenders, do not agree to the terms of this
Amendment shall not be permitted to become a Continuing Tranche A Term Lender or an Additional Tranche A Term Lender. 

WHEREAS, each existing Tranche B Term Lender that executes and delivers a Lender Addendum and in connection therewith agrees to continue
all of its outstanding Tranche B Term Loans as New Tranche B Term Loans (such continued Tranche B Term Loans, the “Continued Tranche B Term Loans” and, together with the Continued Tranche A Term Loans, the “Continued Term
Loans”, and such Lenders, collectively, the “Continuing Tranche B Term Lenders” and, together with the Continuing Tranche A Term Lenders, the “Continuing Term Lenders”) will thereby (i) agree to the
terms of this Amendment and (ii) agree to continue all of its existing Tranche B Term Loans (such existing Tranche B Term Loans, the “Existing Tranche B Term Loans” and, together with the Existing Tranche A Term Loans, the
“Existing Term Loans”, and the Lenders of such Existing Tranche B Term Loans, collectively, the “Existing Tranche B Term Lenders” and, together with the Existing Tranche A Term Lenders, the “Existing Term
Lenders”) outstanding on the Amendment Effective Date as New Tranche B Term Loans in a principal amount equal to the aggregate principal amount of such Existing Tranche B Term Loans so continued, as recorded in the Register. Existing
Tranche B Term Lenders that do not become Continuing Tranche B Term Lenders as contemplated by this recital shall not otherwise be permitted to become an Additional Tranche B Term Lender (as defined below). 

WHEREAS, subject to the preceding recitals, each Person (other than a Continuing Term Lender in its capacity as such) that executes and
delivers a Lender Addendum and agrees in connection therewith to make New Tranche A Term Loans (collectively, the “Additional Tranche A Term Lenders”) or to make New Tranche B Term Loans (collectively, the “Additional
Tranche B Term Lenders” and, together with the Additional Tranche A Term Lenders, the “Additional Term Lenders”) will thereby (i) agree to the terms of this Amendment and (ii) on the Amendment Effective Day,
commit to make New Tranche A Term Loans (the “Additional Tranche A Term Loans”) or New Tranche B Term Loans (the “Additional Tranche B Term Loans” and, together with the Additional Tranche B Term Loans, the
“Additional Term Loans”), as applicable, to the Borrower in such amount (not in excess of any such commitment) as is determined by the Administrative Agent and notified to such Additional Term Lenders. The Borrower shall use the
proceeds of (i) the Additional Tranche A Term Loans to repay in full the outstanding principal amount of the Existing Tranche A Term Loans that are not continued as New Tranche A Term Loans by the Continuing Tranche A Term Lenders and
(ii) the Additional Tranche B Term Loans to repay in full the outstanding principal amount of the Existing Tranche B Term Loans that are not continued as New Tranche B Term Loans by the Continuing Tranche B Term Lenders. At the option of
JPMorgan with the consent of the Borrower, the Additional Term Loans may be made, to the extent of the amount thereof to be used to repay in full the Existing Term Loans that are not so continued, by the replacement of such Existing Term Lenders
pursuant to Section 2.22 of the Credit Agreement and the continuation of such Existing Term Loans as Continued Term Loans by the replacement Lender. 
 WHEREAS, each of the Continuing Term Lenders and the Additional Term Lenders (collectively, the “New Term Lenders”) is severally willing to continue their Existing Term Loans as New Term
Loans or to make New Term Loans, as the case may be, subject to the terms and conditions set forth in this Amendment. 

WHEREAS, each Revolving Lender that executes and delivers a Lender Addendum solely in its capacity as a Revolving Lender will thereby
agree to the terms of this Amendment. 
 WHEREAS, the Required Lenders and the Administrative Agent are willing to agree to this
Amendment on the terms set forth herein. 

  
 2 

 NOW, THEREFORE, in consideration of the premises and mutual covenants contained herein, the
parties hereto agree as follows: 
 SECTION 1. Defined Terms. Capitalized terms used but not defined herein shall have
the meanings assigned to such terms in the Credit Agreement. 
 SECTION 2. Amendments to Section 1. 

(a) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by inserting, in its proper
alphabetical order, the following new definitions: 
 “First Amendment”: the First Amendment, dated the First
Amendment Effective Date, to this Agreement. 
 “First Amendment Effective Date”: March 15, 2011.

 “Tranche B Term Loan Applicable Pricing Grid”: the table set forth below: 

 

							
	 Level
	  	Consolidated
Leverage Ratio	  	Applicable Margin
for ABR Loans	 	Applicable Margin
for Eurodollar
Loans
	 I
	  	< 3.25 to 1.00	  	1.75%	 	2.75%
	 II
	  	3 3.25 to 1.00	  	2.00%	 	3.00%

 Changes in the
Applicable Margin resulting from changes in the Consolidated Leverage Ratio shall become effective on the Adjustment Date and shall remain in effect until the next Adjustment Date. 

If any financial statements are not delivered within the time periods specified in Section 6.1, then, until the date that is three
Business Days after the date on which such financial statements are delivered, the highest rate set forth in each column of the Applicable Pricing Grid shall apply. In addition, at all times while an Event of Default under Section 8(a) or
Section 8(f) shall have occurred and be continuing, the highest rate set forth in each column of the Tranche B Term Loan Applicable Pricing Grid shall apply. Each determination of the Consolidated Leverage Ratio pursuant to the Tranche B Term
Loan Applicable Pricing Grid shall be made in a manner consistent with the determination thereof pursuant to Section 7.1. 

In the event that any financial statement or Compliance Certificate delivered pursuant to Section 6.1 or 6.2(b), respectively, is
shown to be inaccurate, and such inaccuracy, if corrected, would have led to a higher Applicable Margin for an Applicable Period than the Applicable Margin applied for such Applicable Period, then (i) the Borrower shall immediately deliver to
the Administrative Agent a correct Compliance Certificate for such Applicable Period, (ii) the Applicable Margin shall be determined by reference to the corrected Compliance Certificate (but in no event shall the Administrative Agent or the
Lenders owe any amounts to Borrower), and (iii) the Borrower shall immediately pay 

  
 3 

 
to the Administrative Agent the additional interest owing as a result of such increased Applicable Margin for such Applicable Period, which payment shall be promptly applied by the Administrative
Agent in accordance with the terms hereof. This paragraph shall not limit the rights of the Administrative Agent and the Lenders hereunder. 
 (b) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by amending the definition of “ABR” by replacing “2.50%” therein with
“2.00%”. 
 (c) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by
amending the definition of “Applicable Margin” by: 
 (i) replacing the table set forth therein with
the following table: 
  

					
	 	  	ABR Loans	 	Eurodollar Loans
	 Revolving Loans and Swingline Loans
	  	1.25%	 	2.25%
	 Tranche A Term Loans
	  	1.25%	 	2.25%
	 Tranche B Term Loans
	  	2.00%	 	3.00%

 (ii)
inserting the following new proviso at the end thereof: 
 ; provided further that on and after the first
Adjustment Date occurring after the completion of two full fiscal quarters of the Borrower after the First Amendment Effective Date, the Applicable Margin with respect to the Tranche B Term Loans will be determined pursuant to the Tranche B Term
Loan Applicable Pricing Grid 
 (d) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective
Date by amending the definitions of “Applicable Pricing Grid” by replacing the table set forth therein with the following table: 
  

											
	 Level
	  	 Consolidated
Leverage Ratio
	  	Corporate
Rating	  	Applicable Margin
for Eurodollar
Loans	 	Applicable
Margin for ABR
Loans	 	Commitment
Fee Rate
	 I
	  	<2.75 to 1.00	  	> Ba1 and BB+	  	1.50%	 	0.50%	 	0.25%
	 II
	  	<3.25 to 1.00 but 32.75 to 1.00	  	Ba1 and BB+	  	1.75%	 	0.75%	 	0.375%
	 III
	  	<3.75 to 1.00 but 33.25 to 1.00	  	Ba1 and BB+	  	2.00%	 	1.00%	 	0.375%
	 IV
	  	33.75 to 1.00	  	< Ba1 or BB+	  	2.25%	 	1.25%	 	0.50%

 (e) Section 1.1 of
the Credit Agreement is hereby amended as of the Amendment Effective Date by amending the definition of “Eurodollar Base Rate” by replacing “1.50%” therein with “1.00%”. 

(f) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by amending the definition of
“Loan Documents” by inserting “the First Amendment,” immediately before the words “the Security Documents”. 

  
 4 

 (g) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective
Date by amending the definition of “Tranche A Term Loan” to read as follows: 
 “Tranche A Term Loan”:
as defined in Section 2.1, but shall include any Tranche A Term Loan made hereunder pursuant to the First Amendment on the First Amendment Effective Date. 
 (h) Section 1.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by amending the definition of “Tranche B Term Loan” to read as follows: 

“Tranche B Term Loan”: as defined in Section 2.1, but shall include any Tranche B Term Loan made hereunder pursuant
to the First Amendment on the First Amendment Effective Date. 
 SECTION 3. Amendments to Section 2. 

(a) Section 2.1 of the Credit Agreement is hereby amended as of the Amendment Effective Date by inserting the following sentence
immediately after the first sentence thereof: 
 On the First Amendment Effective Date, the New Tranche A Term Loans and the New
Tranche B Term Loans (as defined in the First Amendment) shall constitute, on the terms provided in the First Amendment, Tranche A Term Loans and Tranche B Term Loans, respectively, and the Continued Tranche A Term Loans and the Continued Tranche B
Term Loans (as defined in the First Amendment) shall be ratified and confirmed as Loans in all respects. 
 (b) Section
2.6(a) of the Credit Agreement is hereby amended by deleting the last sentence thereof. 
 (c) Section 2.11(b) of the
Credit Agreement is hereby amended as of the Amendment Effective Date by (i) deleting the word “and” before “(ii)” therein and replacing it with a comma and (ii) inserting the following at the end thereof: 

and (iii) no such prepayment shall be required as a result of any Disposition pursuant to Section 7.5(g) to the extent that,
following the Closing Date and prior to the date of such Disposition, a prepayment has been made pursuant to Section 2.10(a) (which prepayment may be made utilizing the proceeds of a Revolving Loan) other than as a result of the Repricing
Transaction occurring on the Amendment Effective Date; provided that the amount of prepayments that may be excluded pursuant to this clause (iii) shall be equal to the amount of such prepayments made pursuant to Section 2.10(a) and
shall not exceed $125,000,000 in the aggregate. 
 (d) Section 2.14 of the Credit Agreement is hereby amended by adding the
following clause (e) at the end thereof: 
 (e) Each Swingline Loan shall bear interest at rate per annum equal to the ABR
plus the Applicable Margin or such other rate as may be from time to time determined by mutual agreement between the Swingline Lender and the Borrower. 
 (e) Section 2.17 of the Credit Agreement is hereby amended as of the Amendment Effective Date by inserting the following at the end of the second sentence of clause (b) thereof: 

; provided, that prepayments in an aggregate amount not to exceed $125,000,000 made pursuant to Section 2.11(b) as a result of
a Disposition pursuant to Section 7.5(g) shall be applied to the Tranche A Term Loans or the Tranche B Term Loans and to the order of the remaining principal installments thereof as elected by the Borrower. 

  
 5 

 (f) Section 7.1 of the Credit Agreement is hereby amended as of the Amendment Effective
Date by deleting the word “commencing” in the proviso in clause (b) thereof and inserting in lieu thereof the word “ending.” 
 SECTION 4. New Term Loans. (a) Subject to the terms and conditions set forth herein (i) each Continuing Term Lender agrees to continue all of its Existing Term Loans as a New Term Loans
on the date requested by the Borrower to be the Amendment Effective Date (which date shall not be later than March 15, 2011) in a principal amount equal to such Continuing Term Lender’s New Tranche A Term Loan Commitment or New Tranche B
Term Loan Commitment, as applicable and (ii) each Additional Term Lender agrees to make a New Tranche A Term Loan and/or New Tranche B Term Loan on such date to the Borrower in a principal amount equal to such Additional Term Lender’s New
Tranche A Term Loan Commitment and/or New Tranche B Term Loan Commitment. For purposes hereof, a Person may become a party to the Credit Agreement as amended hereby and a New Term Lender as of the Amendment Effective Date by executing and delivering
to the Administrative Agent, on or prior to the Amendment Effective Date, a Lender Addendum in its capacity as a New Term Lender. The Borrower shall give notice to the Administrative Agent of the proposed Amendment Effective Date not later than one
Business Day prior thereto, and the Administrative Agent shall notify each Lender and each Additional Term Lender thereof. For the avoidance of doubt, the Existing Term Loans of a Continuing Term Lender must be continued in whole and may not be
continued in part unless approved by JPMorgan. 
 (b) Each Additional Term Lender will make its New Tranche A Term Loan or New
Tranche B Term Loan, as applicable, on the Amendment Effective Date by making available to the Administrative Agent, in the manner contemplated by Section 2.2 of the Credit Agreement, mutatis mutandis, an amount equal to its New Tranche A Term
Loan Commitment or New Tranche B Term Loan Commitment, as applicable. The “New Tranche A Term Loan Commitment” (i) of any Continuing Tranche A Term Loan Lender will be the amount of its Existing Tranche A Term Loans as set
forth in the Register or, if a lesser amount, as allocated to it by the Administrative Agent and notified to it on or prior to the Amendment Effective Date, to be continued as the New Tranche A Term Loans in such amount and (ii) of any
Additional Tranche A Term Lender will be such amount (not exceeding any commitment offered by such Additional Tranche A Term Lender) allocated to it by the Administrative Agent and notified to it on or prior to the Amendment Effective Date. The
“New Tranche B Term Loan Commitment” (i) of any Continuing Tranche B Term Loan Lender will be the amount of its Existing Tranche B Term Loans as set forth in the Register or, if a lesser amount, as allocated to it by the
Administrative Agent and notified to it on or prior to the Amendment Effective Date, to be continued as the New Tranche B Term Loans in such amount and (ii) of any Additional Tranche B Term Lender will be such amount (not exceeding any
commitment offered by such Additional Tranche B Term Lender) allocated to it by the Administrative Agent and notified to it on or prior to the Amendment Effective Date. The commitments of the Additional Term Lenders and the continuation undertakings
of the Continuing Term Lenders are several and no such Lender will be responsible for any other such Lender’s failure to make or acquire by continuation its New Term Loans. The New Term Loans may from time to time be Eurodollar Loans or ABR
Loans, as determined by the Borrower and notified to the Administrative Agent as contemplated by Sections 2.2 and 2.12, as applicable. Upon continuation, the Continued Term Loans shall be ABR Loans or Eurodollar Loans with Interest Periods as
determined by the Borrower, and the Lenders having Existing Term Loans that are prepaid or continued in connection with the making of the New Term Loans shall be entitled to the benefits of Section 2.20 of the Credit Agreement with respect
thereto. 

  
 6 

 (c) The obligation of each New Term Lender to make or acquire by continuation New Term Loans
on the Amendment Effective Date is subject to the satisfaction of the conditions set forth in Section 7 of this Amendment. 

(d) On and after the Amendment Effective Date, each reference in the Credit Agreement to (i) “Tranche A Term Loans” shall
be deemed a reference to the New Tranche A Term Loans contemplated hereby, except as the context may otherwise require and (ii) “Tranche B Term Loans” shall be deemed a reference to the New Tranche B Term Loans contemplated hereby,
except as the context may otherwise require. Notwithstanding the foregoing, the provisions of the Credit Agreement with respect to indemnification, reimbursement of costs and expenses, increased costs and break funding payments shall continue in
full force and effect with respect to, and for the benefit of, each Existing Term Lender in respect of such Lender’s Existing Term Loans. 
 (e) The continuation of Continued Term Loans may be implemented pursuant to other procedures specified by JPMorgan, including by repayment of Continued Term Loans of a Continuing Term Lender followed by a
subsequent assignment to it of New Term Loans in the same amount. 
 (f) Notwithstanding any other provisions of this Amendment
to the contrary, the Administrative Agent may appoint a fronting lender reasonably acceptable to the Borrower to act as the sole Additional Term Lender for purposes of facilitating funding on the Amendment Effective Date. Accordingly, any Lender
Addendum submitted by or on behalf of an Additional Term Lender other than such fronting lender will be deemed ineffective unless accepted by JPMorgan in its sole discretion. 
 SECTION 5. Prepayment Fee; Partial Waiver Thereof. The Borrower shall pay the 1.0% fee required under Section 2.10(a) of the Credit Agreement to each Existing Tranche B Term Lender in
respect of the repayment or replacement of such Lender’s Existing Tranche B Term Loans with the Amended Tranche B Term Loans. 
 SECTION 6. Deemed Assignment and Assumption. For the avoidance of doubt, the Lenders hereby acknowledge and agree that, at the sole option of JPMorgan, any Lender with Existing Term Loans
which are replaced as contemplated hereby shall, automatically upon receipt of the amount necessary to purchase such replaced Lender’s Existing Term Loans, at par, and pay all accrued interest thereon and the prepayment fee described herein (if
applicable), be deemed to have assigned such Loans pursuant to a form of Assignment and Assumption and, accordingly, no other action by the Lenders, the Administrative Agent or the Loan Parties shall be required in connection therewith. The Lenders
hereby agree to waive the notice requirements of Section 2.10 of the Credit Agreement in connection with the prepayment or replacement of Existing Tranche B Term Loans contemplated hereby. 

SECTION 7. Conditions to Effectiveness of Amendment. This Amendment shall become effective on the date on which the following
conditions precedent have been satisfied or waived (the “Amendment Effective Date”): 
 (a) Amendment
Documentation. The Administrative Agent shall have received (i) a counterpart of this Amendment, executed and delivered by a duly authorized officer of the Borrower and the Administrative Agent and (ii) Lender Addenda, executed and
delivered by (A) the Required Lenders, (B) the Swingline Lender and (C) each of the Revolving Lenders; provided, that the Borrower may replace, pursuant to Section 2.22 of the Credit Agreement, any Revolving Lender that does not
execute and deliver a Lender Addendum. 

  
 7 

 (b) Collateral. The Borrower and the other Loan Parties shall have executed an
instrument of acknowledgement and confirmation reasonably satisfactory to the Administrative Agent with respect to the guarantees, security interests and liens created under the Security Documents. 

(c) Fees. The Lenders and the Administrative Agent shall have received all fees required to be paid, and all expenses for
which invoices have been presented (including the reasonable fees and expenses of legal counsel), on or before the Amendment Effective Date. 
 (d) Representations and Warranties. The representations and warranties set forth in Section 8 of this Amendment shall be true and correct as set forth therein. 

SECTION 8. Representations and Warranties. The Borrower hereby represents and warrants that (a) each of the representations
and warranties made by any Loan Party in or pursuant to the Loan Documents shall be, after giving effect to this Amendment, true and correct in all material respects as if made on and as of the Amendment Effective Date, except to the extent such
representations and warranties expressly relate to an earlier time, in which case such representations and warranties were true and correct in all material respects as of such earlier time; provided that each reference to the Credit Agreement
therein shall be deemed to be a reference to the Credit Agreement after giving effect to this Amendment and (b) after giving effect to this Amendment, no Default or Event of Default shall have occurred and be continuing. 

SECTION 9. Consent Fee. The Borrower agrees to pay to the Administrative Agent for the account of (a) each Lender of New
Tranche A Term Loans a consent fee in an amount equal to 0.25% of such Lender’s New Tranche A Term Loans and (b) (i) each Revolving Lender that has executed and delivered a Lender Addenda by the Amendment Effective Date and
(ii) each Person to which the Revolving Commitment of any Revolving Lender that does not so execute and deliver a Lender Addenda is assigned by the Amendment Effective Date, a consent fee in an amount equal to 0.25% of such Lender’s
Revolving Commitments as of the Amendment Effective Date. 
 SECTION 10. GOVERNING LAW; WAIVER OF JURY TRIAL. THIS
AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND BE GOVERNED BY THE LAW OF THE STATE OF NEW YORK. EACH PARTY HERETO HEREBY AGREES AS SET FORTH FURTHER IN SECTION 10.12 OF THE CREDIT
AGREEMENT AS IF SUCH SECTION WAS SET FORTH IN FULL HEREIN. 
 SECTION 11. Amendments; Execution in Counterparts; Notice.
This Amendment shall not constitute an amendment or waiver of any other provision of the Credit Agreement not referred to herein and shall not be construed as a waiver or consent to any further or future action on the part of the Loan Parties that
would require a waiver or consent of the Required Lenders or the Administrative Agent. Except as expressly amended or waived hereby, the provisions of the Credit Agreement are and shall remain in full force and effect. This Amendment may be executed
in any number of counterparts and by the different parties hereto on separate counterparts, including by means of facsimile or electronic transmission, each of which when so executed and delivered shall be an original, but all of which shall
together constitute one and the same instrument. 
 [Remainder of page intentionally left blank] 

  
 8 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and
delivered by their respective proper and duly authorized officers as of the day and year first above written. 
  

			
	UNIVERSAL HEALTH SERVICES, INC.,
	as Borrower
		
	By:	 	 /s/ Steve Filton

	Name: Steve Filton
	Title: Senior Vice President

 
			
	JPMORGAN CHASE BANK, N.A., as Administrative Agent and Swingline Lender
		
	By:	 	 /s/ Dawn Lee Lum

	Name: Dawn Lee Lum
	Title: Executive Director

 TRANCHE A TERM LENDER ADDENDUM TO THE FIRST AMENDMENT 

TO THE UNIVERSAL HEALTH SERVICES, INC. CREDIT AGREEMENT 
 DATED AS OF NOVEMBER 15, 2010 
 This Lender Addendum (this “Lender
Addendum”) is referred to in, and is a signature page to, the First Amendment (the “Amendment”) to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among Universal Health
Services, Inc., a Delaware corporation, the several banks and other financial institutions from time to time parties thereto, JPMORGAN CHASE BANK, N.A., as administrative agent and the other agents party thereto. Capitalized terms used but not
defined in this Lender Addendum have the meanings assigned to such terms in the Amendment or the Credit Agreement, as applicable. 
 By executing this Lender Addendum, the undersigned institution agrees (A) to the terms of the Amendment and the Credit Agreement as amended thereby and (B) on the terms and subject to the
conditions set forth in the Amendment and the Credit Agreement as amended thereby, to continue its Existing Tranche A Term Loans as New Tranche A Term Loans on the Amendment Effective Date. 

 

			
	[Insert legal name in all caps], as Tranche A Term Lender
		
	By:	 	  

	Name:
	Title:
	[    ] Check here if Lender elects a cashless roll of its Loans

 TRANCHE B TERM LENDER ADDENDUM TO THE FIRST AMENDMENT 

TO THE UNIVERSAL HEALTH SERVICES, INC. CREDIT AGREEMENT 
 DATED AS OF NOVEMBER 15, 2010 
 This Lender Addendum (this “Lender
Addendum”) is referred to in, and is a signature page to, the First Amendment (the “Amendment”) to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among Universal Health
Services, Inc., a Delaware corporation, the several banks and other financial institutions from time to time parties thereto, JPMORGAN CHASE BANK, N.A., as administrative agent and the other agents party thereto. Capitalized terms used but not
defined in this Lender Addendum have the meanings assigned to such terms in the Amendment or the Credit Agreement, as applicable. 
 By executing this Lender Addendum, the undersigned institution agrees (A) to the terms of the Amendment and the Credit Agreement as amended thereby and (B) on the terms and subject to the
conditions set forth in the Amendment and the Credit Agreement as amended thereby, to continue its Existing Tranche B Term Loans as New Tranche B Term Loans on the Amendment Effective Date. 

 

			
	[Insert legal name in all caps], as Tranche B Term Lender
		
	By:	 	  

	Name:
	Title:
	[    ] Check here if Lender elects a cashless roll of its Loans

 REVOLVING LENDER ADDENDUM TO THE FIRST AMENDMENT TO 

THE UNIVERSAL HEALTH SERVICES, INC. CREDIT AGREEMENT 
 DATED AS OF NOVEMBER 15, 2010 
 This Lender Addendum (this “Lender
Addendum”) is referred to in, and is a signature page to, the First Amendment (the “Amendment”) to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among Universal Health
Services, Inc., a Delaware corporation, the several banks and other financial institutions from time to time parties thereto, JPMORGAN CHASE BANK, N.A., as administrative agent and the other agents party thereto. Capitalized terms used but not
defined in this Lender Addendum have the meanings assigned to such terms in the Amendment or the Credit Agreement, as applicable. 
 By executing this Lender Addendum, the undersigned institution agrees to the terms of the Amendment and the Credit Agreement as amended thereby. 

 

			
	[Insert legal name in all caps], as Revolving Lender
		
	By:	 	  

	Name:
	Title:

 ADDITIONAL TRANCHE A TERM LENDER ADDENDUM TO THE FIRST AMENDMENT 

TO THE UNIVERSAL HEALTH SERVICES, INC. CREDIT AGREEMENT 
 DATED AS OF NOVEMBER 15, 2010 
 This Lender Addendum (this “Lender
Addendum”) is referred to in, and is a signature page to, the First Amendment (the “Amendment”) to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among Universal Health
Services, Inc., a Delaware corporation, the several banks and other financial institutions from time to time parties thereto, JPMORGAN CHASE BANK, N.A., as administrative agent and the other agents party thereto. Capitalized terms used but not
defined in this Lender Addendum have the meanings assigned to such terms in the Amendment or the Credit Agreement, as applicable. 
 By executing this Lender Addendum, the undersigned institution agrees (A) to the terms of the Amendment and the Credit Agreement as amended thereby and (B) on the terms and subject to the
conditions set forth in the Amendment and the Credit Agreement as amended thereby, to make and fund New Tranche A Term Loans on the Amendment Effective Date in the amount of such Additional Tranche A Term Lender’s New Tranche A Term Loan
Commitment. 
  

			
	[Insert legal name in all caps], as Additional Tranche A Term Lender
		
	By:	 	  

	Name:
	Title:

 ADDITIONAL TRANCHE B TERM LENDER ADDENDUM TO THE FIRST AMENDMENT 

TO THE UNIVERSAL HEALTH SERVICES, INC. CREDIT AGREEMENT 
 DATED AS OF NOVEMBER 15, 2010 
 This Lender Addendum (this “Lender
Addendum”) is referred to in, and is a signature page to, the First Amendment (the “Amendment”) to the Credit Agreement, dated as of November 15, 2010 (the “Credit Agreement”), among Universal Health
Services, Inc., a Delaware corporation, the several banks and other financial institutions from time to time parties thereto, JPMORGAN CHASE BANK, N.A., as administrative agent and the other agents party thereto. Capitalized terms used but not
defined in this Lender Addendum have the meanings assigned to such terms in the Amendment or the Credit Agreement, as applicable. 
 By executing this Lender Addendum, the undersigned institution agrees (A) to the terms of the Amendment and the Credit Agreement as amended thereby and (B) on the terms and subject to the
conditions set forth in the Amendment and the Credit Agreement as amended thereby, to make and fund New Tranche B Term Loans on the Amendment Effective Date in the amount of such Additional Tranche B Term Lender’s New Tranche B Term Loan
Commitment. 
  

			
	[Insert legal name in all caps], as Additional Tranche B Term Lender
		
	By:	 	  

	Name:
	Title:Amended and Restated Investor Rights Agreement

 Exhibit 4.2 
 CORTINA SYSTEMS, INC. 
 AMENDED AND RESTATED 

INVESTOR RIGHTS AGREEMENT 

 TABLE OF CONTENTS 

 

							
	 	  	 	  	PAGE	 
			
	 SECTION 1.
	  	 GENERAL
	  	 	1	  
			
	 1.1
	  	Definitions	  	 	1	  
			
	 SECTION 2.
	  	 REGISTRATION; RESTRICTIONS ON TRANSFER
	  	 	3	  
			
	 2.1
	  	 Restrictions on Transfer
	  	 	3	  
			
	 2.2
	  	 Demand Registration
	  	 	5	  
			
	 2.3
	  	 Piggyback Registrations
	  	 	6	  
			
	 2.4
	  	 Form S-3 Registration
	  	 	7	  
			
	 2.5
	  	 Expenses of Registration
	  	 	8	  
			
	 2.6
	  	 Obligations of the Company
	  	 	9	  
			
	 2.7
	  	 Termination of Registration Rights
	  	 	11	  
			
	 2.8
	  	 Delay of Registration; Furnishing Information
	  	 	11	  
			
	 2.9
	  	 Indemnification
	  	 	11	  
			
	 2.10
	  	 Assignment of Registration Rights
	  	 	14	  
			
	 2.11
	  	 Amendment of Registration Rights
	  	 	14	  
			
	 2.12
	  	 Limitation on Subsequent Registration Rights
	  	 	14	  
			
	 2.13
	  	 “Market Stand-Off” Agreement
	  	 	14	  
			
	 2.14
	  	 Agreement to Furnish Information
	  	 	15	  
			
	 2.15
	  	 Rule 144 Reporting
	  	 	15	  
			
	 SECTION 3.
	  	 COVENANTS OF THE COMPANY
	  	 	16	  
			
	 3.1
	  	 Basic Financial Information and Reporting
	  	 	16	  
			
	 3.2
	  	 Inspection Rights
	  	 	17	  
			
	 3.3
	  	 Confidentiality of Records
	  	 	17	  
			
	 3.4
	  	 Reservation of Common Stock
	  	 	17	  
			
	 3.5
	  	 Stock Vesting
	  	 	17	  
			
	 3.6
	  	 Proprietary Information and Inventions Agreement
	  	 	17	  
			
	 3.7
	  	 Assignment of Right of First Refusal
	  	 	18	  
			
	 3.8
	  	 Directors’ Liability and Indemnification
	  	 	18	  
			
	 3.9
	  	 Termination of Covenants
	  	 	18	  
			
	 SECTION 4.
	  	 RIGHTS OF FIRST REFUSAL
	  	 	18	  
			
	 4.1
	  	 Subsequent Offerings
	  	 	18	  
			
	 4.2
	  	 Exercise of Rights
	  	 	19	  

  
 i. 

 TABLE OF CONTENTS 

(CONTINUED) 
  

							
	 	  	 	  	PAGE	 
			
	 4.3
	  	 Issuance of Equity Securities to Other Persons
	  	 	19	  
			
	 4.4
	  	Termination and Waiver of Rights of First Refusal	  	 	19	  
			
	 4.5
	  	Transfer of Rights of First Refusal	  	 	20	  
			
	 4.6
	  	Excluded Securities	  	 	20	  
			
	 SECTION 5.
	  	 MISCELLANEOUS
	  	 	21	  
			
	 5.1
	  	Governing Law	  	 	21	  
			
	 5 2
	  	Survival	  	 	21	  
			
	 5.3
	  	 Successors and Assigns
	  	 	21	  
			
	 5.4
	  	Entire Agreement	  	 	21	  
			
	 5.5
	  	Severability	  	 	21	  
			
	 5.6
	  	Amendment and Waiver	  	 	22	  
			
	 5.7
	  	 Delays or Omissions
	  	 	22	  
			
	 5.8
	  	Notices	  	 	22	  
			
	 5.9
	  	 Attorneys’ Fees
	  	 	23	  
			
	 5.10
	  	Titles and Subtitles	  	 	23	  
			
	 5.11
	  	 Additional Investors
	  	 	23	  
			
	 5.12
	  	 Counterparts
	  	 	23	  
			
	 5.13
	  	Aggregation of Stock	  	 	23	  
			
	 5 14
	  	 Pronouns
	  	 	23	  
			
	 5.15
	  	 Amendment and Restatement of Prior Agreement; Effectiveness
	  	 	23	  

  
 ii.

 CORTINA SYSTEMS, INC. 

AMENDED AND RESTATED 
 INVESTOR RIGHTS AGREEMENT 
 THIS AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT (the “Agreement”) is entered into as of the July 23, 2006 by and among CORTINA
SYSTEMS, INC., a Delaware corporation (the “Company”) and the investors listed on Exhibit A hereto, referred to hereinafter as the “Investors” and each
individually as an “Investor” 
 RECITALS 

WHEREAS, certain of the Investors are purchasing shares of the Company’s Series D Preferred Stock (the
“Series D Stock”) pursuant to that certain Series D Preferred Stock Purchase Agreement (the “Purchase Agreement”) dated as of July 23, 2006 (the “Financing”); 

WHEREAS, the obligations in the Purchase Agreement are conditioned upon the execution and delivery
of this Agreement; 
 WHEREAS, certain of the Investors are holders of the Company’s
Series 1 Preferred Stock (the “Series I Stock”), Series A Preferred Stock (the “Series A Stock”), Series B Preferred Stock (the “Series B Stock”) and Series C Preferred Stock
(the “Series C Stock”) (together, the “Prior Investors”) (the Series 1 Stock, Series A Stock, Series B Stock, Series C Stock and Series D Stock shall be referred to herein collectively as the
“Preferred Stock”); 
 WHEREAS, the Prior Investors and the Company
are parties to an Amended and Restated Investor Rights Agreement dated August 5, 2005 (the “Prior Agreement”); 
 WHEREAS, the parties to the Prior Agreement desire to amend and restate the Prior Agreement and accept the rights and covenants hereof in lieu of their rights and
covenants under the Prior Agreement; and 
 WHEREAS, in connection with the consummation of
the Financing, the Company and the Investors have agreed to the registration rights, information rights, and other rights as set forth below. 
 Now, THEREFORE, in consideration of these premises and for other good and valid consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows: 
 SECTION 1. GENERAL. 
 1.1 Definitions. As used in this Agreement the following terms shall have the following respective meanings: 

  
 1. 

 (a) “Acquisition’” shall have the same
meaning as defined in the Restated Certificate. 
 (b) Asset Transfer”
shall have the same meaning as defined in the Restated Certificate. 
 (c) “Common
Stock” means the Company’s Common Stock as defined in the Restated Certificate. 

(d) “Exchange Act” means the Securities Exchange Act of 1934, as amended. 

(e) “Form S-3” means such form under the Securities Act as in effect on the
date hereof or any successor or similar registration form under the Securities Act subsequently adopted by the SEC which permits inclusion or incorporation of substantial information by reference to other documents filed by the Company with the SEC.

 (f) “Holder” means any person owning of record Registrable
Securities that have not been sold to the public or any assignee of record of such Registrable Securities in accordance with Section 2.10 hereof. 
 (g) “Initial Offering” means the Company’s first firm commitment underwritten public offering of its Common Stock registered under the Securities Act.

 (h) “Major Investor” means any Investor that (with its
affiliates) owns not less than five million (5,000,000) shares of Registrable Securities (as adjusted for stock splits and combinations). 
 (i) “Qualified Initial Public Offering” means a firmly underwritten public offering pursuant to an effective registration statement under the Securities Act of
1933, as amended, covering the offer and sale of Common Stock for the account of the Company in which the gross cash proceeds to the Company (before underwriting discounts, commissions and fees) are at least fifty million dollars ($50,000,000).

 (j) “Register,” “registered,” and
“registration” refer to a registration effected by preparing and filing a registration statement in compliance with the Securities Act, and the declaration or ordering of effectiveness of such registration
statement or document. 
 (k) “Registrable Securities” means
(a) Common Stock of the Company issued or issuable upon conversion of the Shares and (b) any Common Stock of the Company issued as (or issuable upon the conversion or exercise of any warrant, right or other security which is issued as) a
dividend or other distribution with respect to, or in exchange for or in replacement of, such above-described securities. Notwithstanding the foregoing, Registrable Securities shall not include any securities sold by a person to the public either
pursuant to a registration statement or Rule 144 or sold in a private transaction in which the transferor’s rights under Section 2 of this Agreement are not assigned. 

(l) “Registrable Securities then outstanding” shall be the number of shares
of the Company’s Common Stock that are Registrable Securities and either (a) are then issued 

  
 2. 

 
and outstanding or (b) are issuable pursuant to then exercisable or convertible securities outstanding. 

(m) “Registration Expenses” shall mean all expenses incurred by the Company
in complying with Sections 2.2, 2.3 and 2.4 hereof, including, without limitation, all registration and filing fees, printing expenses, fees and disbursements of counsel for the Company, reasonable fees and disbursements not to exceed twenty-five
thousand dollars ($25,000) of a single special counsel for the Holders for each registration, blue sky fees and expenses and the expense of any special audits incident to or required by any such registration (but excluding the compensation of
regular employees of the Company which shall be paid in any event by the Company). 
 (n)
“Restated Certificate” means the Company’s Amended and Restated Certificate of Incorporation, as may be amended from time to time. 

(o) “SEC” or “Commission” means the
Securities and Exchange Commission. 
 (p) “Securities Act” shall mean the
Securities Act of 1933, as amended, 
 (q) “Selling Expenses’”
shall mean all underwriting discounts and selling commissions applicable to the sale. 
 (r)
“Shares” shall mean the Company’s Preferred Stock held by the Investors listed on Exhibit A hereto and their permitted assigns. 

(s) “Special Registration Statement” shall mean (i) a registration
statement relating to any employee benefit plan or (ii) with respect to any corporate reorganization or transaction under Rule 145 of the Securities Act, including any registration statements related to the resale of securities issued in such a
transaction, or (iii) a registration related to stock issued upon conversion of debt securities. 
 SECTION 2. REGISTRATION;
RESTRICTIONS ON TRANSFER 
 2.1 Restrictions on Transfer. 

(a) Each Holder agrees not to make any disposition of all or any portion of the Shares or Registrable Securities
unless and until: 
 (i) there is then in effect a registration statement under the Securities Act
covering such proposed disposition and such disposition is made in accordance with such registration statement; or 
 (ii) (A) the transferee has agreed in writing to be bound by the terms of this Agreement, (B) such Holder shall have notified the Company of the proposed disposition and shall have
furnished the Company with a detailed statement of the circumstances surrounding the proposed disposition, and (C) if reasonably requested by the Company, such Holder shall have furnished the Company with an opinion of counsel, reasonably
satisfactory to 

  
 3. 

 
the Company, that such disposition will not require registration of such shares under the Securities Act. It is agreed that the Company will not require opinions of counsel for transactions made
pursuant to Rule 144. After its Initial Offering, the Company will not require the transferee to be bound by the terms of this Agreement, nor will it require a Holder to comply with subsections 2.1(a)(ii)(B) or (C) herein so long as any
transaction made by such Holder is done so in accordance with Rule 144. 
 (b) Notwithstanding the
provisions of subsection (a) above, no such registration statement or opinion of counsel shall be necessary for a transfer by a Holder that is (A) a partnership transferring to its partners or former partners in accordance with partnership
interests, (B) to a transferee that is any individual, partnership, corporation, limited liability company, association, joint stock company, trust, joint venture or unincorporated organization that directly or indirectly controls, is controlled by
or is under common control with such Holder, (C) a limited liability company transferring to its members or former members in accordance with their interest in the limited liability company, or (D) an individual transferring to the
Holder’s family member or trust for the benefit of an individual Holder; provided, however, that in each case the transferee will be subject to the terms of this Agreement to the same extent as if he were an original Holder hereunder.

 (c) Each certificate representing Shares or Registrable Securities shall (unless otherwise permitted by
the provisions of the Agreement) be stamped or otherwise imprinted with a legend substantially similar to the following (in addition to any legend required under applicable state securities laws); 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY
NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY AND ITS COUNSEL THAT SUCH REGISTRATION IS
NOT REQUIRED. 
 THE SALE, PLEDGE, HYPOTHECATION OR TRANSFER OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE IS SUBJECT TO THE
TERMS AND CONDITIONS OF A CERTAIN INVESTOR RIGHTS AGREEMENT BY AND BETWEEN THE STOCKHOLDER AND THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY. 

(d) The Company shall be obligated to reissue promptly unlegended certificates at the request of any Holder thereof
if the Holder shall have obtained an opinion of counsel (which counsel may be counsel to the Company) reasonably acceptable to the Company 

  
 4. 

 
to the effect that the securities proposed to be disposed of may lawfully be so disposed of without registration, qualification or legend. 

(e) Any legend endorsed on an instrument pursuant to applicable state securities laws and the stop-transfer
instructions with respect to such securities shall be removed upon receipt by the Company of an order of the appropriate blue sky authority authorizing such removal. 
 2.2 Demand Registration. 
 (a) Subject to the
conditions of this Section 2.2, if the Company shall receive a written request from the Holders of at least forty percent (40%) of the Registrable Securities (the “Initiating Holders”) that the Company file a
registration statement under the Securities Act having an aggregate offering price, net of underwriting discounts and commissions, of not less than seven million five hundred thousand dollars ($7,500,000), then the Company shall, promptly following
receipt thereof, give written notice of such request to all Holders, and subject to the limitations of this Section 2.2, use commercially reasonable efforts to effect, as expeditiously as reasonably possible, the registration under the
Securities Act of all Registrable Securities that the Holders request to be registered within ninety (90) days of the receipt of the Company’s notice pursuant to this Section 2.2(a). 

(b) If 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 this Section 2.2 or any request pursuant to Section 2.4 and the Company shall include such information in the written notice referred to in
Section 2.2(a) or Section 2.4(a), as applicable. In such event, the right of any Holder to include its 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. All Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement in customary form
with the underwriter or underwriters selected for such underwriting by a majority in interest of the Initiating Holders (which underwriter or underwriters shall be reasonably acceptable to the Company). Notwithstanding any other provision of this
Section 2.2 or Section 2.4, if the underwriter advises the Company that marketing factors require a limitation of the number of securities to be underwritten (including Registrable Securities) then the Company shall so advise all Holders
of Registrable Securities that would otherwise be underwritten pursuant hereto, and the number of shares that may be included in the underwriting shall be allocated to the Holders of such Registrable Securities on a pro rata basis based on
the number of Registrable Securities held by all such Holders (including the Initiating Holders). Any Registrable Securities excluded or withdrawn from such underwriting shall be withdrawn from the registration. 

(c) The Company shall not be required to effect a registration pursuant to this Section 2.2: 

(i) prior to one hundred eighty (180) days following the effective date of the registration statement
pertaining to the Initial Offering; 

  
 5. 

 (ii) after the Company has effected two (2) registrations
pursuant to this Section 2.2, and such registrations have been declared or ordered effective; 
 (iii)
during the period starting with the date of filing of, and ending on the date one hundred eighty (180) days following the effective date of any registration statement pertaining to the Company’s equity securities (except for a Special
Registration Statement); provided, however that the Company makes reasonable good faith efforts to cause such registration statement to become effective; 
 (iv) if within thirty (30) days of receipt of a written request from Initiating Holders pursuant to Section 2.2(a), the Company gives notice to the Holders of the Company’s intention
to file a registration statement (except for a Special Registration Statement) within ninety (90) days; or 

(v) if the Company shall furnish to Holders requesting a registration statement pursuant to this Section 2.2,
a certificate signed by the Chairman of the Board stating that in the good faith judgment of the Board of Directors of the Company, it would be seriously detrimental to the Company and its stockholders for such registration statement to be effected
at such time, in which event the Company shall have the right to defer such filing for a period of not more than ninety (90) days after receipt of the request of the Initiating Holders; provided, however that such right to delay a
request shall be exercised by the Company not more than twice and for no more than a total of one hundred twenty (120) days in any twelve (12) month period. 
 2.3 Piggyback Registrations. The Company shall notify all Holders of Registrable Securities in writing at least fifteen (15) days prior to the filing of any registration statement under the
Securities Act for purposes of a public offering of securities of the Company (including, but not limited to, registration statements relating to secondary offerings of securities of the Company, but excluding Special Registration Statements) and
will afford each such Holder an opportunity to include in such registration statement all or part of such Registrable Securities held by such Holder. Each Holder desiring to include in any such registration statement all or any part of the
Registrable Securities held by it shall, within fifteen (15) days after the above-described notice from the Company, so notify the Company in writing. Such notice shall state the intended method of disposition of the Registrable Securities by
such Holder. If a Holder decides not to include all of its Registrable Securities in any registration statement thereafter filed by the Company, such Holder shall nevertheless continue to have the right to include any Registrable Securities in any
subsequent registration statement or registration statements as may be filed by the Company with respect to offerings of its securities, all upon the terms and conditions set forth herein. 

(a) Underwriting. If the registration statement under which the Company gives notice under this Section 2.3 is
for an underwritten offering, the Company shall so advise the Holders of Registrable Securities, In such event, the right of any such Holder to be included in a registration pursuant to this Section 2.3 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. All Holders proposing to distribute their Registrable Securities through such
underwriting shall enter into an underwriting agreement in 

  
 6. 

 
customary form with the underwriter or underwriters selected for such underwriting by the Company. Notwithstanding any other provision of this Agreement, if the underwriter determines in good
faith that marketing factors require a limitation of the number of shares to be underwritten, the number of shares that may be included in the underwriting shall be allocated, first, to the Company; second, to the participating Holders on a pro
rata basis based on the total number of Registrable Securities held by the participating Holders; and third, to any stockholder of the Company (other than a Holder) on a pro rata basis. No such reduction shall reduce the amount of
securities of the selling Holders included in the registration below thirty percent (30%) of the total amount of securities included in such registration, unless such offering is the Initial Offering and such registration does not include
shares of any other selling stockholders, in which event any or all of the Registrable Securities of the Holders may be excluded in accordance with the immediately preceding sentence. In no event will shares of any other selling stockholder be
included in such registration that would reduce the number of shares which may be included by any Holders without the written consent of Holders of not less than sixty-six and two-thirds percent (66 2/3%) of the Registrable Securities proposed to be
sold in the offering. If any Holder disapproves of the terms of any such underwriting, such Holder may elect to withdraw therefrom by written notice to the Company and the underwriter, delivered at least ten (10) business days prior to the
effective date of the registration statement. Any Registrable Securities excluded or withdrawn from such underwriting shall be excluded and withdrawn from the registration. For any Holder which is a partnership, limited liability company or
corporation, the partners, retired partners, members and stockholders of such Holder, or the estates and family members of any such partners, retired partners, members and any trusts for the benefit of any of the foregoing person shall be deemed to
be a single “Holder” and any pro rata reduction with respect to such “Holder” shall be based upon the aggregate amount of shares carrying registration rights owned by all entities and
individuals included in such “Holder,” as defined in this sentence. 
 (b) Right to
Terminate Registration. The Company shall have the right to terminate or withdraw any registration initiated by it under this Section 2.3 prior to the effectiveness of such registration whether or not any Holder has elected to include
securities in such registration. The Registration Expenses of such withdrawn registration shall be borne by the Company in accordance with Section 2.5 hereof. 
 2.4 Form S-3 Registration. In case the Company shall receive from any Holder or Holders of Registrable Securities a written request or requests that the Company effect a registration on Form S-3
(or any successor to Form S-3) or any similar short-form registration statement and any related qualification or compliance with respect to all or a part of the Registrable Securities owned by such Holder or Holders, the Company will: 

(a) within fifteen (15) business days give written notice of the proposed registration, and any related
qualification or compliance, to all other Holders of Registrable Securities; and 
 (b) as soon as
practicable, effect such registration and all such qualifications and compliances as may be so requested and as would permit or facilitate the sale and distribution of all or such portion of such Holder’s or Holders’ Registrable Securities
as are specified in such request, together with all or such portion of the Registrable Securities of any 

  
 7. 

 
other Holder or Holders joining in such request as are specified in a written request given within fifteen (15) days after receipt of such written notice from the Company; provided,
however, that the Company shall not be obligated to effect any such registration, qualification or compliance pursuant to this Section 2.4: 
 (i) if Form S-3 (or any successor to Form S-3) is not available for such offering by the Holders, or 
 (ii) if the Holders, together with the holders of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities
(if any) at an aggregate price to the public of less than one million dollars ($1,000,000), or 
 (iii) if
within thirty (30) days of receipt of a written request from any Holder or Holders pursuant to this Section 2.4, the Company gives notice to such Holder or Holders of the Company’s intention to make a public offering within ninety
(90) days, other than pursuant to a Special Registration Statement; 
 (iv) if the Company shall
furnish to the Holders a certificate signed by the Chairman of the Board of Directors of the Company stating that in the good faith judgment of the Board of Directors of the Company, it would be seriously detrimental to the Company and its
stockholders for such Form S-3 registration to be effected at such time, in which event the Company shall have the right to defer the filing of the Form S-3 registration statement for a period of not more than ninety (90) days after receipt of
the request of the Holder or Holders under this Section 2.4; provided, however that such right to delay a request shall be exercised by the Company not more than once in any twelve (12) month period, or 

(v) if the Company has already effected two (2) registrations on Form S-3 for the Holders pursuant to this
Section 2.4. 
 (c) Subject to the foregoing, the Company shall file a Form S-3 registration
statement covering the Registrable Securities and other securities so requested to be registered as soon as practicable after receipt of the requests of the Holders. Registrations effected pursuant to this Section 2.4 shall not be counted as
demands for registration or registrations effected pursuant to Sections 2.2 or 2.3, respectively. 
 2.5 Expenses of
Registration. Except as specifically provided herein, all Registration Expenses incurred in connection with any registration, qualification or compliance pursuant to Section 2.2 or any registration under Section 2.3 or Section 2.4
herein shall be borne by the Company. All Selling Expenses incurred in connection with any registrations hereunder, shall be borne by the holders of the securities so registered pro rata on the basis of the number of shares so registered. The
Company shall not, however, be required to pay for expenses of any registration proceeding begun pursuant to Section 2.2 or 2.4, the request of which has been subsequently withdrawn by the Initiating Holders unless (a) the withdrawal is
based upon material adverse information concerning the Company of which the Initiating Holders were not aware at the time of such request or (b) the Holders of a majority of Registrable Securities agree to forfeit their right to one requested
registration pursuant to Section 2.2 or Section 2.4, as 

  
 8. 

 
applicable, in which event such right shall be forfeited by all Holders. If the Holders are required to pay the Registration Expenses, such expenses shall be borne by the holders of securities
(including Registrable Securities) requesting such registration in proportion to the number of shares for which registration was requested. If the Company is required to pay the Registration Expenses of a withdrawn offering pursuant to clause
(a) above, then the Holders shall not forfeit their rights pursuant to Section 2.2 or Section 2.4 to a demand registration. 
 2.6 Obligations of the Company. Whenever required 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 all
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 not less
than (i) ninety (90) days or, (ii) for such shorter period during which the Holder or Holders have completed the distribution related thereto; provided, however, that at any time, upon written notice to the participating Holders and
for a period not to exceed sixty (60) days thereafter (the “Suspension Period”), the Company may delay the filing or effectiveness of any registration statement or suspend the use or effectiveness of any registration
statement (and the Initiating Holders hereby agree not to offer or sell any Registrable Securities pursuant to such registration statement during the Suspension Period) if the Company reasonably believes that the Company may, in the absence of such
delay or suspension hereunder, be required under state or federal securities laws to disclose any corporate development the disclosure of which could reasonably be expected to have an adverse effect upon the Company, its stockholders, a potentially
significant transaction or event involving the Company, or any negotiations, discussions, or proposals directly relating thereto. No more than one (1) such Suspension Period shall occur in any twelve (12) month period. In the event that
the Company shall exercise its rights hereunder, the applicable time period during which the registration statement is to remain effective shall be extended by a period of time equal to the duration of the Suspension Period. The Company may extend
the Suspension Period for an additional consecutive sixty (60) days with the consent of the holders of a majority of the Registrable Securities proposed to be sold by the Initiating Holders. If so directed by the Company, the Initiating Holders
shall use their best efforts to deliver to the Company (at the Company’s expense) all copies, other than permanent file copies then in such Initiating Holders’ possession, of the prospectus relating to such Registrable Securities current
at the time of receipt of such notice; provided, however, that the Company shall use its best efforts to distribute an amended prospectus as promptly as possible in accordance with Sections 2.6(b) and (c) below. The Company shall not be
required to file, cause to become effective or maintain the effectiveness of any registration statement that contemplates a distribution of securities on a delayed or continuous basis pursuant to Rule 415 under the Securities Act. 

(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 provisions of the Securities Act with respect to the disposition of all securities covered by such registration statement for the period set forth in
subsection (a) above. 

  
 9. 

 (c) Furnish to the Holders such number of copies of a prospectus,
including a preliminary prospectus, in conformity with the requirements of the Securities Act, and such other documents as they may reasonably request in order to facilitate the disposition of Registrable Securities owned by them. 

(d) Use its 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 Holders; provided that the Company shall not be required in connection therewith or as a condition thereto to qualify to do business or to
file a general consent to service of process in any such states or jurisdictions. 
 (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 managing underwriter(s) of such offering. Each Holder participating in such underwriting shall also enter
into and perform its obligations under such an agreement. 
 (f) Notify each Holder of Registrable
Securities covered by such registration statement at any time when a prospectus relating thereto is required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in such registration
statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing.
The Company will use its commercially reasonable best efforts to amend or supplement such prospectus in order to cause such prospectus not to include any untrue statement of a material fact or omit to state a material fact required to be stated
therein or necessary to make the statements therein not misleading in the light of the circumstances then existing. 
 (g) Use its commercially reasonable best efforts to furnish, on the date that such Registrable Securities are delivered to the underwriters for sale, if such securities are being sold through
underwriters, (i) an opinion, dated as of such date, of the counsel representing the Company for the purposes of such registration, in form and substance as is customarily given to underwriters in an underwritten public offering, addressed to
the underwriters, if any, and (ii) a letter, dated as of such date, from the independent certified public accountants of the Company, in form and substance as is customarily given by independent certified public accountants to underwriters in
an underwritten public offering addressed to the underwriters. 
 (h) Cause all such Registrable
Securities registered pursuant hereunder to be listed on each securities exchange on which similar securities issued by the Company are then listed. 
 (i) Provide a transfer agent and registrar for all Registrable Securities registered pursuant hereunder and a CUSIP number for all such Registrable Securities, in each case not later than the
effective date of such registration. 
 (j) Notwithstanding any other provision of this Agreement, from
and after the time a registration statement filed under this Section 2 covering Registrable Securities is declared effective, the Company shall have the right to suspend the registration statement and the related

  
 10.

 
prospectus in order to prevent premature disclosure of any material non-public information related to corporate developments by delivering notice of such suspension to the Holders; provided,
however, that the Company may exercise the right to such suspension only once in any 12-month period and for a period not to exceed sixty (60) days. From and after the date of a notice of suspension under this Section 2.6(j), each Holder agrees
not to use the registration statement or the related prospectus for resale of any Registrable Security until the earlier of (1) notice from the Company that such suspension has been lifted or (2) the sixtieth (60th) day following the
giving of the notice of suspension. 
 (k) Otherwise use its commercially reasonable efforts to comply
with all applicable rules and regulations of the Commission. After its Initial Offering, the Company shall use its commercially reasonable efforts to remain eligible to qualify for registration on form S-3 or any comparable or successor form or
forms. 
 2.7 Termination of Registration Rights. All registration rights granted under this Section 2 shall
terminate and be of no further force and effect three (3) years after the date of any Qualified Initial Public Offering. In addition, an individual Holder’s registration rights shall expire if (a) the Company has completed its Initial
Offering and is subject to the provisions of the Exchange Act, (b) such Holder (together with its affiliates) holds less than 1% of the Company’s outstanding Common Stock (treating all shares of convertible Preferred Stock on an as
converted basis), and (c) all Registrable Securities held by and issuable to such Holder (and its affiliates, family members, partners, former partners and former members) may be sold under Rule 144 during each day of any ninety (90) day
period. 
 2.8 Delay of Registration; Furnishing Information. 

(a) No Holder shall have any right to obtain or seek an injunction restraining or otherwise delaying any such
registration as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 2. 
 (b) It shall be a condition precedent to the obligations of the Company to take any action pursuant to Section 2.2, 2.3 or 2.4 that the selling Holders shall furnish to the Company such
information regarding themselves, the Registrable Securities held by them and the intended method of disposition of such securities as shall be required to effect the registration of their Registrable Securities. 

(c) Except as provided in Section 2.5, the Company shall have no obligation with respect to any registration
requested pursuant to Section 2.2 or Section 2.4 if, due to the operation of subsection 2.2(b), the number of shares or the anticipated aggregate offering price of the Registrable Securities to be included in the registration does not
equal or exceed the number of shares or the anticipated aggregate offering price required to originally trigger the Company’s obligation to initiate such registration as specified in Section 2.2 or Section 2.4, whichever is
applicable. 
 2.9 Indemnification. In the event any Registrable Securities are included in a registration statement
under Sections 2.2, 2.3 or 2.4: 

  
 11.

 (a) To the extent permitted by law, the Company will indemnify and
hold harmless each Holder, the partners, officers, directors, members and stockholders of each Holder, any underwriter (as defined in the Securities Act) for 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 losses, claims, damages, or liabilities (whether incurred by such person(s) jointly or severally) to which they may become subject under the Securities Act, the Exchange Act or other
federal or state law, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any of the following statements, omissions or violations (collectively a “Violation”)
by the Company: (i) any untrue statement or alleged untrue statement of a material fact contained in such registration statement (or incorporated by reference therein), including any preliminary prospectus or final prospectus contained therein
or any amendments or supplements thereto, (ii) the 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 Company 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 in connection with the offering covered by such
registration statement; and the Company will pay as incurred to each such Holder, partner, officer, director, member, stockholder, underwriter or controlling person for any legal or other expenses reasonably incurred by them in connection with
investigating or defending any such loss, claim, damage, liability or action; provided however, that the indemnity agreement contained in this Section 2.9(a) shall not apply to amounts paid in settlement of any such loss, claim, damage,
liability or action if such settlement is effected without the consent of the Company, which consent shall not be unreasonably withheld, nor shall the Company be liable in any such case for any such loss, claim, damage, liability or action to the
extent that it arises out of or is based upon a Violation which occurs in reliance upon and in conformity with written information furnished expressly for use in connection with such registration by such Holder, partner, officer, director, member,
stockholder, underwriter or controlling person of such Holder. 
 (b) To the extent permitted by law, each
Holder will, if Registrable Securities held by such Holder are included in the securities as to which such registration qualifications or compliance is being effected, indemnify and hold harmless the Company, each of its directors, its officers and
each person, if any, who controls the Company within the meaning of the Securities Act, any underwriter and any other Holder selling securities under such registration statement or any of such other Holder’s partners, directors or officers or
any person who controls such Holder, against any losses, claims, damages or liabilities (whether incurred by such person(s) jointly or severally) to which the Company or any such director, officer, controlling person, underwriter or other such
Holder, or partner, director, officer or controlling person of such other Holder may become subject under the Securities Act, the Exchange Act or other federal or state law, insofar as such losses, claims, damages or liabilities (or actions in
respect thereto) arise out of or are based upon any Violation, in each case to the extent (and only to the extent) that such Violation occurs in reliance upon and in conformity with written information furnished by such Holder under an instrument
duly executed by such Holder and stated to be specifically for use in connection with such registration; and each such Holder will pay as incurred any legal or other expenses reasonably incurred by the Company or any such director, officer,
controlling person, underwriter or other Holder, or partner, officer, director or controlling person of such other Holder in connection with investigating or defending any such loss, claim, 

  
 12.

 
damage, liability or action if it is judicially determined that there was such a Violation; provided, however, that the indemnity agreement contained in this subsection 2.9(b) shall not
apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the consent of the Holder, which consent shall not be unreasonably withheld; provided further, that in no event
shall the aggregate indemnity under this Section 2.9 exceed the net proceeds from the offering received by such Holder. 
 (c) Promptly after receipt by an indemnified party under this Section 2.9 of notice of the commencement of any action (including any governmental action), such indemnified party will, if a
claim in respect thereof is to be made against any indemnifying party under this Section 2.9, deliver to the indemnifying party a written notice of the commencement thereof and the indemnifying party shall have the right to participate in, and,
to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party shall
have the right to retain its own 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 counsel in such proceeding. The failure to deliver written notice to the indemnifying party within a reasonable time of the commencement of any such
action, if materially prejudicial to its ability to defend such action, shall relieve such indemnifying party of any liability to the indemnified party under this Section 2.9, but the omission so to deliver written 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 2.9. 
 (d) If the indemnification provided for in this Section 2.9 is held by a court of competent jurisdiction to be unavailable to an indemnified party with respect to any losses, claims, damages
or liabilities referred to herein, the indemnifying party, in lieu of indemnifying such indemnified party thereunder, shall to the extent permitted by applicable law contribute to the amount paid or payable by such indemnified party as a result of
such loss, claim, damage or liability in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the other in connection with the Violation(s) that resulted in such
loss, claim, damage or liability, as well as any other relevant equitable considerations. The relative fault of the indemnifying party and of the indemnified party shall be determined by a court of law by reference to, among other things, whether
the untrue or alleged untrue statement of a material fact or the omission to state 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 no event shall the aggregate contribution by a Holder hereunder exceed the net proceeds from the offering received by such Holder.

 (e) Notwithstanding the foregoing, to the extent that the provisions on indemnification and
contribution contained in the underwriting agreement entered into in connection with the underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control. 

  
 13.

 (f) The obligations of the Company and Holders under this
Section 2.9 shall survive completion of any offering of Registrable Securities in a registration statement and the termination of this Agreement. No indemnifying party, in the defense of any such claim or litigation, shall, except with the
consent of each indemnified party, consent to entry of any judgment or enter into any settlement which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all
liability in respect to such claim or litigation. 
 2.10 Assignment of Registration Rights. The rights to cause the
Company to register Registrable Securities pursuant to this Section 2 may be assigned by a Holder to a transferee or assignee of Registrable Securities that (a) is a Holder’s family member or trust for the benefit of an individual
Holder; (b) is a partner, limited partner, retired partner, member or retired member of a Holder; (c) acquires at least five hundred thousand (500,000) shares of Registrable Securities (as adjusted for stock splits and combinations);
or (d) is an individual, partnership, corporation, limited liability company, association, joint stock company, trust, joint venture or unincorporated organization that directly or indirectly controls, is controlled by or is under common
control with a Holder, provided, however, (i) the transferor shall, within ten (10) days after such transfer, furnish to the Company written notice of the name and address of such transferee or assignee and the
securities with respect to which such registration rights are being assigned and (ii) such transferee shall agree to be subject to all restrictions set forth in this Agreement. 

2.11 Amendment of Registration Rights. Any provision of this Section 2 may be amended and the observance thereof may be
waived (either generally or in a particular instance and either retroactively or prospectively), only with the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities then outstanding. Any
amendment or waiver effected in accordance with this Section 2.11 shall be binding upon each Holder and the Company. By acceptance of any benefits under this Section 2, Holders of Registrable Securities hereby agree to
be bound by the provisions hereunder. 
 2.12 Limitation on Subsequent Registration Rights. Other than as provided
in Section 5.11, after the date of this Agreement, the Company shall not, without the prior written consent of the Holders of at least a majority in interest of the Registrable Securities then outstanding, enter into any agreement with any
holder or prospective holder of any securities of the Company that would grant such holder registration rights pari passu or senior to those granted to the Holders hereunder, other than the right to (i) a registration
statement relating to any employee benefit plan or (ii) with respect to any corporate reorganization or transaction under Rule 145 of the Securities Act, including any registration statements related to the resale of securities issued in such a
transaction. 
 2.13 “Market Stand-Off” Agreement. Each Holder hereby agrees that
such Holder shall not sell, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale, any Common Stock (or other securities) of the Company held
by such Holder (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred eighty (180) days following the

  
 14.

 
effective date of a registration statement of the Company filed under the Securities Act; provided that: 

(i) such agreement shall apply only to the Qualified Initial Public Offering and is explicitly conditioned on any
release or modification of such agreement being effected among all Holders on a basis pro rata to the number of Registrable Shares held by such Holders; and 

(ii) such agreement shall apply only if all officers and directors of the Company and holders of at least one
percent (1%) of the Company’s voting securities enter into or are bound by similar agreements. 
 2.14 Agreement to
Furnish Information. Each Holder agrees to execute and deliver such other agreements as may be reasonably requested by the Company or the underwriter that are consistent with the Holder’s obligations under Section 2.13 or that are
necessary to give further effect thereto; provided, however, that any such agreement must require that any release, waiver or modification of such agreement be effected among all Holders on a basis pro rata to the number of Registrabie
Shares held by such Holders. In addition, if requested by the Company or the representative of the underwriters of Common Stock (or other securities) of the Company, each Holder shall provide, within ten (10) days of such request, such
information as may be required by the Company or such representative in connection with the completion of any public offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations
described in Section 2.13 and this Section 2.14 shall not apply to a Special Registration Statement. The Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the
foregoing restriction until the end of said one hundred eighty (180) day period. Any of the foregoing notwithstanding, any institutional investor may, during such one hundred eighty (180) day period, transfer any Common Stock (or other
securities) of the Company to any of its partners or members, provided that such partners or members agree in writing as a condition to such transfer to abide by the provisions of this Section 2.14. Each Holder agrees that any transferee of any
shares of Registrable Securities shall be bound by Sections 2.13 and 2.14. The underwriters of the Company’s stock are intended third party beneficiaries of Sections 2.13 and 2.14 and shall have the right, power and authority to enforce the
provisions hereof as though they were a party hereto. 
 2.15 Rule 144 Reporting. With a view to making available to the
Holders the benefits of certain rules and regulations of the SEC which may permit the sale of the Registrable Securities to the public without registration, the Company agrees to use its best efforts to: 

(a) Make and keep public information available, as those terms are understood and defined in SEC Rule 144 or any
similar or analogous rule promulgated under the Securities Act, at all times after the effective date of the first registration filed by the Company for an offering of its securities to the general public; 

(b) File with the SEC, in a timely manner, all reports and other documents required of the Company under the
Exchange Act; and 

  
 15.

 (c) So long as a Holder owns any Registrable Securities, furnish to
such Holder forthwith upon request: a written statement by the Company as to its compliance with the reporting requirements of said Rule 144 of the Securities Act, and of the Exchange Act (at any time after it has become subject to such reporting
requirements); a copy of the most recent annual or quarterly report of the Company; and such other reports, documents, and information as a Holder may reasonably request in connection with availing itself of any rule or regulation of the SEC
allowing it to sell any such securities without registration. 
 SECTION 3. COVENANTS OF THE COMPANY. 

3.1 Basic Financial Information and Reporting. 

(a) The Company will maintain true books and records of account in which full and correct entries will be made of
all its business transactions pursuant to a system of accounting established and administered in accordance with generally accepted accounting principles consistently applied, and will set aside on its books all such proper accruals and reserves as
shall be required under generally accepted accounting principles consistently applied. 
 (b) Prior to a
Qualified Initial Public Offering, as soon as practicable after the end of each fiscal year of the Company, and in any event within ninety (90) days thereafter, the Company will furnish each Major Investor a balance sheet of the Company, as at
the end of such fiscal year, and a statement of income and a statement of cash flows of the Company, for such year, all prepared in accordance with generally accepted accounting principles consistently applied and setting forth in each case in
comparative form the figures for the previous fiscal year, all in reasonable detail. Such financial statements shall be accompanied by a report and opinion thereon by independent public accountants of national standing selected by the Company’s
Board of Directors. 
 (c) Prior to a Qualified Initial Public Offering, as soon as practicable after the
end of the first, second and third quarterly accounting periods in each fiscal year of the Company, and in any event within forty-five (45) days thereafter, the Company will furnish each Major Investor a balance sheet of the Company as of the
end of each such quarterly period, and a statement of income and a statement of cash flows of the Company for such period and for the current fiscal year to date, prepared in accordance with generally accepted accounting principles, with the
exception that no notes need be attached to such statements and year-end audit adjustments may not have been made. 
 (d) Prior to a Qualified Initial Public Offering, the Company will furnish each Major Investor: (i) at least thirty (30) days prior to the beginning of each fiscal year an annual budget
and operating plans for such fiscal year (and as soon as available, any subsequent revisions thereto); and (ii) as soon as practicable after the end of each month, and in any event within twenty (20) days thereafter, a balance sheet of the
Company as of the end of each such month, and a statement of income and a statement of cash flows of the Company for such month and for the current fiscal year to date, including a comparison to plan figures for such period, prepared in accordance
with generally accepted accounting principles consistently applied, with the exception that no notes need be attached to such statements and year-end audit adjustments may not have been made. 

  
 16.

 3.2 Inspection Rights. In addition to the inspection rights provided under
Section 220 of the Delaware General Corporation Law, each Major Investor shall have the right to visit and inspect any of the properties of the Company or any of its subsidiaries, and to discuss the affairs, finances and accounts of the Company
or any of its subsidiaries with its officers, and to review such information as is reasonably requested all at such reasonable times and as often as may be reasonably requested; provided, however, that the Company shall not be
obligated under this Section 3.2 with respect to a competitor of the Company or with respect to information which the Board of Directors determines in good faith is confidential and should not, therefore, be disclosed. This Section 3.2
shall terminate upon a Qualified Initial Public Offering, 
 3.3 Confidentiality of Records. Each Investor
agrees to use, and to use its best efforts to insure that its authorized representatives use, the same degree of care as such Investor uses to protect its own confidential information to keep confidential any information furnished to it which the
Company identifies as being confidential or proprietary (so long as such information is not in the public domain), except that such Investor may disclose such proprietary or confidential information (i) to any partner, subsidiary, parent or
affiliate of such Investor for the purpose of evaluating its investment in the Company as long as such partner, subsidiary, parent or affiliate is advised of the confidentiality provisions of this Section 3.3; (ii) at such time as it
enters the public domain through no fault of such Investor; (iii) that is communicated to it by the Company free of any obligation of confidentiality; or (iv) that the Investor can prove to have been developed by Investor or its agents
independently of and without reference to any confidential information communicated by the Company, 
 3.4 Reservation of
Common Stock. The Company-will at all times reserve and keep available, solely for issuance and delivery upon the conversion of the Preferred Stock, all Common Stock issuable from time to time upon such conversion. 

3.5 Stock Vesting. Unless otherwise unanimously approved by the Board of Directors, all stock options and other stock
equivalents issued after the date of this Agreement to employees, directors, consultants and other service providers shall be subject to vesting as follows: (a) twenty-five percent (25%) of such stock shall vest at the end of the first
year following the earlier of the date of issuance or, with respect to initial grants to new hires, such person’s services commencement date with the Company, and (b) seventy-five percent (75%) of such stock shall vest in equal
monthly portions over the three (3) years thereafter. With respect to any shares of stock purchased by any such person, the Company’s repurchase option shall provide that upon such person’s termination of employment or service with
the Company, with or without cause, the Company or its assignee shall have the option to purchase at cost any unvested shares of stock held by such person. Unless otherwise unanimously approved by the Board of Directors, the Company shall not grant
provision for the acceleration of any vesting with respect to any of its stock, options or stock equivalents. The Company shall also use reasonable efforts to ensure that any wholly- or majority-owned subsidiary of the Company complies with the
restrictions contained in this Section 3.5 with respect to such subsidiary’s relationships with its employees, directors, consultants and other service providers, as applicable. 

3.6 Proprietary Information and Inventions Agreement. The Company shall require all employees and consultants to execute and
deliver a Proprietary Information and Inventions Agreement substantially in the form attached to the Purchase Agreement. The 

  
 17.

 
Company shall also use reasonable efforts to ensure that any wholly- or majority-owned subsidiary of the Company complies with the restrictions contained in this Section 3.6 with respect to
such subsidiary’s relationships with its employees, directors, consultants and other service providers, as applicable. 

3.7 Assignment of Right of First Refusal. In the event the Company elects not to exercise any right of first refusal or
right of first offer the Company may have on a proposed transfer of any of the Company’s outstanding capital stock pursuant to the Company’s charter documents, by contract or otherwise, the Company shall assign such unexercised portion of
such right of first refusal or right of first offer to each Major Investor. In the event of such assignment, each Major Investor shall have a right to purchase its pro rata portion of such unexercised portion of the capital stock proposed to
be transferred. Each Major Investor’s pro rata portion shall be equal to the product obtained by multiplying (x) the aggregate number of shares subject to such unexercised portion by (y) a fraction, the numerator of which is the
number of shares of Registrable Securities held by such Major Investor at the time of the proposed transfer and the denominator of which is the total number of shares of Registrable Securities owned by all Major Investors at the time of such
proposed transfer. 
 3.8 Directors’ Liability and Indemnification. The Company’s Certificate of Incorporation
and Bylaws shall 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.

 3.9 Termination of Covenants. All covenants of the Company contained in Section 3 of this Agreement shall expire
and terminate as to each Investor upon the earlier of (i) the effective date of the registration statement pertaining to any Qualified Initial Public Offering or (ii) upon (a) an Asset Transfer or (b) an Acquisition; provided,
however, that the provisions of Sections 3.1, 3.2, and 3.3 shall not expire or terminate pursuant to clause (b) unless such Acquisition involves a company whose equity securities are traded on a nationally or internationally recognized
stock exchange. 
 SECTION 4. RIGHTS OF FIRST REFUSAL. 
 4.1 Subsequent Offerings. Each Major Investor shall have a right of first refusal to purchase its pro rata share of all Equity Securities, as defined below, that the Company may, from time
to time, propose to sell and issue after the date of this Agreement, other than the Equity Securities excluded by Section 4.6 hereof (a “Company Offering”). Each Major Investor’s pro rata share is equal to
the ratio of (x) the number of shares of the Company’s Common Stock (including all shares of Common Stock issued or issuable upon conversion of the Shares or other convertible security) of which such Investor is deemed to be a holder
immediately prior to the issuance of such Equity Securities to (y) the total number of shares of the Company’s outstanding Common Stock (including all shares of Common Stock issued or issuable upon conversion of the Shares or upon the
exercise of any outstanding warrants or options) immediately prior to the issuance of the Equity Securities. The term “Equity Securities” shall mean (i) any Common Stock, Preferred Stock or other security of the Company,
(ii) any security convertible into or exercisable for or exchangeable for, with or without consideration, any Common Stock, Preferred Stock or other security (including any option to 

  
 18.

 
purchase such a convertible security), (iii) any security carrying any warrant or right to subscribe to or purchase any Common Stock, Preferred Stock or other security, or (iv) any such
warrant or right. 
 4.2 Exercise of Rights. If the Company proposes to issue any Equity Securities, it shall give each
Major Investor written notice of its intention, describing the Equity Securities, the price and the terms and conditions upon which the Company proposes to issue the same. Each Major Investor shall have fifteen (15) days from the giving of such
notice to agree to purchase all or a portion of its pro rata share of the Equity Securities for the price and upon the terms and conditions specified in the notice by giving written notice to the Company and stating therein the
quantity of Equity Securities to be purchased. Notwithstanding the foregoing, the Company shall not be required to offer or sell such Equity Securities to any Major Investor who would cause the Company to be in violation of applicable federal
securities laws by virtue of such offer or sale. 
 4.3 Issuance of Equity Securities to Other Persons. If not all
of the Major Investors elect to purchase their pro rata share of the Equity Securities, then the Company shall promptly notify in writing the Major Investors who do so elect and shall offer such Major Investors the right to
acquire such unsubscribed shares. The Major Investors shall have five (5) business days after receipt of such notice to notify the Company of its election to purchase all or a portion thereof of the unsubscribed shares. If the Major Investors
fail to exercise in full the rights of first refusal, the Company shall have ninety (90) days thereafter to sell that number of Equity Securities in respect of which the Major Investor’s rights were not exercised, at a price and upon
general terms and conditions not more favorable to the purchasers thereof than specified in the Company’s notice to the Major Investors pursuant to Section 4.2 hereof. If the Company has not sold such Equity Securities within ninety
(90) days of the notice provided pursuant to Section 4.2, the Company shall not thereafter issue or sell any Equity Securities, without first offering such securities to the Major Investors in the manner provided above. 

4.4 Termination and Waiver of Rights of First Refusal. 

(a) The rights of first refusal established by this Section 4 shall not apply to, and shall terminate upon the
earlier of (i) the effective date of the registration statement pertaining to a Qualified Initial Public Offering or (ii) an Acquisition or an Asset Transfer. The rights of first refusal established by this Section 4 may be amended
with written consent of the Company and with the written consent of Major Investors holding a majority of the Registrable Securities held by all Major Investors. Any provision of this Section 4 may waived with the written consent of Major
Investors holding a majority of the Registrable Securities held by all Major Investors; provided, however, the rights of any individual Major Investor hereto may not be adversely affected in a manner different than the other Major Investors
without such Major Investor’s prior written consent. 
 (b) Notwithstanding any such waiver of this
Section 4.4 pursuant to Section 4.4(a), in the event that any Major Investor(s) actually purchase Equity Securities in any such Company Offering, then each other Major Investor shall be permitted to participate on a pro rata basis (based
on the level of participation of the Major Investor purchasing the largest portion of 

  
 19.

 
its pro rata share) in accordance with the other provisions, including notice and election periods, as set forth in Section 4. 

4.5 Transfer of Rights of First Refusal. The rights of first refusal of each Major Investor under this Section 4 may be
transferred to the same parties, subject to the same restrictions as any transfer of registration rights pursuant to Section 2.10. 
 4.6 Excluded Securities. The rights of first refusal established by this Section 4 shall have no application to any of the following Equity Securities: 

(a) shares of Common Stock issued upon conversion of the Preferred Stock; 

(b) shares of Common Stock and/or options, warrants or other Common Stock purchase rights and the Common Stock
issued pursuant to such options, warrants or other rights (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like after the filing of the Restated Certificate) after the Original Issue Date (as defined in the
Restated Certificate) to employees, officers or directors of, contractors or consultants or advisors to the Company or any subsidiary pursuant to stock purchase or stock option plans or other arrangements that are approved by the Board of Directors;

 (c) shares of Common Stock issued pursuant to the exercise of options, warrants or convertible
securities outstanding as of the Original Issue Date, provided, however, that the rights of first refusal established by this Section 4 applied with respect to the initial sale or grant by the Company of such rights or agreements;

 (d) shares of Common Stock and/or options, warrants or other Common Stock purchase rights, and the
Common Stock issued pursuant to such options, warrants or other rights issued for consideration other than cash pursuant to a merger, consolidation, acquisition, strategic alliance or similar business combination approved by the Board of Directors;

 (e) shares of Common Stock or Preferred Stock and/or warrants or other Common Stock or Preferred Stock
purchase rights, and the Common Stock or Preferred Stock issued pursuant to such warrants or other rights issued pursuant to any equipment loan or leasing arrangement, real property leasing arrangement or debt financing from a bank or similar
financial institution approved by the Board of Directors; 
 (f) shares of Common Stock issued in
connection with any stock split, stock dividend or recapitalization by the Company; 
 (g) shares of
Common Stock or Preferred Stock and/or warrants or other Common Stock or Preferred Stock purchase rights, and the Common Stock or Preferred Stock issued pursuant to such warrants or other rights issued to third-party service providers in exchange
for or as partial consideration for services rendered to the Company; provided that the issuance of shares therein has been approved by each of the Series D Director, Series C Director, the Series A Director and the Series 1 Director;

  
 20.

 (h) any equity securities issued in connection with strategic
transactions involving the Company and other entities, including (i) joint ventures, manufacturing, marketing or distribution arrangements, or (ii) technology transfer or development arrangements; provided that the issuance of
shares therein has been approved by each of the Series D Director, Series C Director, the Series A Director and the Series 1 Director; and 
 (i) shares of Series D Stock issued pursuant to the Purchase Agreement and the Common Stock issued or issuable upon conversion thereof. 
 SECTION 5. MISCELLANEOUS. 
 5.1 Governing Law. This Agreement shall
be governed by and construed under the laws of the State of Delaware as applied to agreements among Delaware residents entered into and to be performed entirely within Delaware. 

5.2 Survival. The representations, warranties, covenants, and agreements made herein shall survive any investigation made by any
Holder and the closing of the transactions contemplated hereby. All statements as to factual matters contained in any certificate or other instrument delivered by or on behalf of the Company pursuant hereto in connection with the transactions
contemplated hereby shall be deemed to be representations and warranties by the Company hereunder solely as of the date of such certificate or instrument. 
 5.3 Successors and Assigns. Except as otherwise expressly provided herein, the provisions hereof shall inure to the benefit of, and be binding upon, the successors, assigns, heirs, executors, and
administrators of the parties hereto and shall inure to the benefit of and be enforceable by each person who shall be a holder of Registrable Securities from time to time; provided, however, that prior to the receipt by the Company of
adequate written notice of the transfer of any Registrable Securities specifying the full name and address of the transferee, the Company may deem and treat the person listed as the holder of such shares in its records as the absolute owner and
holder of such shares for all purposes, including the payment of dividends or any redemption price. 
 5.4 Entire Agreement.
This Agreement, the Exhibits and Schedules hereto, the Purchase Agreement and the other documents delivered pursuant thereto constitute the full and entire understanding and agreement between the parties with regard to the subjects hereof and
supersede any and all prior understandings and agreements, whether written or oral, with respect to such subject, including without limitation the Prior Agreement, which shall have no further force or effect. No party shall be liable or bound to any
other in any manner by any representations, warranties, covenants and agreements except as specifically set forth herein and therein. 
 5.5 Severability. In the event one or more of the provisions of this Agreement should, for any reason, be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality,
or unenforceability shall not affect any other provisions of this Agreement, and this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never been contained herein. 

  
 21.

 5.6 Amendment and Waiver. 

(a) Except as otherwise expressly provided, this Agreement may be amended or modified only upon the written consent
of the Company and the holders of at least a majority of the Registrable Securities. 
 (b) Except as
otherwise expressly provided, the obligations of the Company and the rights of the Holders under this Agreement may be waived only with the written consent of the holders of at least a majority of the Registrable Securities; provided, however,
the rights of any individual Holder hereto may not be adversely affected in a manner different than the other Holders without such Holder’s prior written consent. 

(c) For the purposes of determining the number of Holder or Investors entitled to vote or exercise any rights
hereunder, the Company shall be entitled to rely solely on the list of record holders of its stock as maintained by or on behalf of the Company. 
 (d) For purposes of Sections 3.1, 3.2 and 3.7, this Agreement may be amended or modified only upon the written consent of the Company and the Major Investors holding a majority of the Registrable
Securities held by all Major Investors. The rights the Major Investors set forth in Sections 3.1, 3.2 and 3.7 may be waived with the written consent of Major Investors holding a majority of the Registrable Securities held by all Major Investors.
Notwithstanding the foregoing, the rights of any individual Major Investor hereto may not be adversely affected in a manner different than the other Major Investors without such Major Investor’s prior written consent 

5.7 Delays or Omissions. It is agreed that no delay or omission to exercise any right, power, or remedy accruing to any Holder,
upon any breach, default or noncompliance of the Company under this Agreement shall impair any such right, power, or remedy, nor shall it be construed to be a waiver of any such breach, default or noncompliance, or any acquiescence therein, or of
any similar breach, default or noncompliance thereafter occurring. It is further agreed that any waiver, permit, consent, or approval of any kind or character on any Holder’s part of any breach, default or noncompliance under the Agreement or
any waiver on such Holder’s part of any provisions or conditions of this Agreement must be in writing and shall be effective only to the extent specifically set forth in such writing. All remedies, either under this Agreement, by law, or
otherwise afforded to Holders, shall be cumulative and not alternative. 
 5.8 Notices. All notices required or permitted
hereunder shall be in writing and shall be deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed electronic mail or facsimile if sent during normal business hours of the recipient; if
not, then on the next business day, (c) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d) one (1) day after deposit with a nationally recognized overnight
courier, specifying next day delivery, with written verification of receipt. All communications shall be sent to the party to be notified at the address as set forth on the signature pages hereof or Exhibit A hereto or at such other
address or electronic mail address as such party may designate by ten (10) days advance written notice to the other parties hereto. 

  
 22.

 5.9 Attorneys’ Fees. In the event that any suit or action is
instituted to enforce any provision in this Agreement, the prevailing party in such dispute shall be entitled to recover from the losing party all fees, costs and expenses of enforcing any right of such prevailing party under or with respect to this
Agreement, including without limitation, such reasonable fees and expenses of attorneys and accountants, which shall include, without limitation, all fees, costs and expenses of appeals. 

5.10 Titles and Subtitles. The titles of the sections and subsections of this Agreement are for convenience of reference only and
are not to be considered in construing this Agreement. 
 5.11 Additional Investors. Notwithstanding anything to the
contrary contained herein, if the Company shall issue additional shares of its Preferred Stock pursuant to the Purchase Agreement, any purchaser of such shares of Preferred Stock may become a party to this Agreement by executing and delivering an
additional counterpart signature page to this Agreement and shall be deemed an “Investor,” a “Holder” and a party hereunder. Notwithstanding anything to the contrary contained herein, if
the Company shall issue Equity Securities in accordance with Section 4.6 (d), (e) or (h) of this Agreement, any purchaser of such Equity Securities may become a party to this Agreement by executing and delivering an additional
counterpart signature page to this Agreement and shall be deemed an “Investor,” a “Holder” and a party hereunder. 
 5.12 Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be an original, but all of which together shall constitute one instrument. 

5.13 Aggregation of Stock. All shares of Registrable Securities held or acquired by affiliated entities or persons or persons or
entities under common management or control shall be aggregated together for the purpose of determining the availability of any rights under this Agreement. 
 5.14 Pronouns. All pronouns contained herein, and any variations thereof, shall be deemed to refer to the masculine, feminine or neutral, singular or plural, as to the identity of the parties
hereto may require. 
 5.15 Amendment and Restatement of Prior Agreement; Effectiveness. This Agreement
shall become effective upon the Closing (as defined in the Purchase Agreement) (the “Effective Date”) provided that it has been executed by the Company and a majority of the Registrable Securities then
outstanding. Until the Effective Date, the Prior Agreement shall remain in full force and effect. Upon the Effective Date, all provisions of, rights granted and covenants made in the Prior Agreement are hereby waived, released and superseded in
their entirety and shall have no further force or effect. In the event the Closing (as defined in the Purchase Agreement) does not occur in accordance with Section 6 of the Purchase Agreement, this Agreement shall be null and void and the Prior
Agreement shall remain in full force and effect. 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 23.

 IN WITNESS WHEREOF, the parties hereto have executed this AMENDED AND RESTATED
INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof. 
  

									
	COMPANY:	 		 	INVESTORS:
			
	CORTINA SYSTEMS, INC.	 		 	CHANCELLOR V, L.P.,
		 		 	By: IPC Direct Associates V, LLC
	Signature:	 	 /s/ Amir Nayyerhabibi
	 		 	its General Partner;
	Print Name: Amir Nayyerhabibi	 		 	By: INVESCO Private Capital, Inc.
	Title: President and CEO	 		 	its Managing Member
		 		 		 	
		 		 		 	By:	 	 /s/ E. Lohrasbpour

				
	Address: 441 Logue Avenue Suite 150	 		 	Print Name:	 	 E. Lohrasbpour

	Suite 150	 		 		 	
	Mountain View, CA 94043	 		 		 	
		 		 		 	CHANCELLOR V.A., L.P.
		 		 		 	By: IPC Direct Associates V, LLC
		 		 		 	its general partner
		 		 		 	By: INVESCO Private Capital, Inc.
		 		 		 	its Managing Member
					
		 		 		 	By:	 	 /s/ E. Lohrasbpour

		 		 		 		 	Managing Member
					
		 		 		 	Print Name:	 	 E. Lohrasbpour

				
		 		 		 	EUROMEDIA VENTURE FUND
		 		 		 	(CORTENANCY OF IPC DIRECT
		 		 		 	ASSOCIATES V, LLC AND EUROMEDIA
		 		 		 	VENTURE BELGIQUE, SA),
		 		 		 	By IPC Euromedia Associates, LLC
		 		 		 	its Managing Member
		 		 		 	By INVESCO Private Capital, Inc.
		 		 		 	its Managing Member
					
		 		 		 	By:	 	 /s/ E. Lohrasbpour

		 		 		 		 	Managing Member
					
		 		 		 	Print Name:	 	 E. Lohrasbpour

SIGNATURE PAGE TO CORTINA SYSTEMS, INC. 
 INVESTOR RIGHTS AGREEMENT 

 
			
	CITIVENTURE 2000, L.P.,
	 By IPC Direct Associates V, LLC
 its General Partner

	 By: INVESCO Private Capital, Inc.
 its Managing Member

		
	By:	 	 /s/ E. Lohrasbpour

		 	Managing Member

			
		
	Print Name:	 	 E.
Lohrasbpour

			
	
	INTEL ATLANTIC, INC.
		
	By:	 	 /s/ Ravi
Jacob

			
		
	Name:	 	 Ravi
Jacob

			
		
	Title:	 	 Vice President and Treasurer

 
			
	INSTITUTIONAL VENTURE PARTNERS XI, L.P.
		
	By:	 	Institutional Venture Management XI, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Norman A. Fogelsong

		 	Managing Director
	
	INSTITUTIONAL VENTURE PARTNERS XI, GmbH & CO. BETEILIGUNGS KG
		
	By:	 	Institutional Venture Management XI, LLC
	Its:	 	Managing Limited Partner
		
	By:	 	 /s/ Norman A. Fogelsong

		 	Managing Director
	
	 MORGENTHALER PARTNERS VII, L.P.,
 by Morgenthaler Management Partners VII, LLC,
 its Managing Partner

		
	By:	 	 /s/ Drew Lanza

		 	Managing Member
		
		 	 Drew Lanza

		 	Print Name

 
			
	EL DORADO VENTURES VI, L.P.
		
	By:	 	El Dorado Venture Partners VI, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Thomas H.
Peterson

			
		
	Name:	 	 Thomas H.
Peterson

			
		
	Title:	 	 Managing
Member

			
	
	EL DORADO TECHNOLOGY ‘01, L.P.
		
	By:	 	El Dorado Venture Partners VI, LLC
	Its:	 	General Partner

			
		
	By:	 	 /s/ Thomas H.
Peterson

			
		
	Name:	 	 Thomas H.
Peterson

			
		
	Title:	 	 Managing Member

 

 
			
	REDPOINT VENTURES II, L.P.
	 by Redpoint Ventures II, LLC,
 its General Partner

		
	By:	 	 /s/ R. Thomas Dyal

		 	R. Thomas Dyal
		 	Managing Director
	
	 REDPOINT ASSOCIATES II, LLC
 as nominee

		
	By:	 	 /s/ R. Thomas Dyal

		 	R. Thomas Dyal
		 	Managing Director
	
	REDPOINT TECHNOLOGY PARTNERS Q-I, L.P.
	 by Redpoint Ventures I, LLC,
 its General Partner

		
	By:	 	 /s/ R. Thomas Dyal

		 	R. Thomas Dyal
		 	Managing Director
	
	REDPOINT TECHNOLOGY PARTNERS A-I, L.P.
	 by Redpoint Ventures I, LLC,
 its General Partner

		
	By:	 	 /s/ R. Thomas Dyal

		 	R. Thomas Dyal
		 	Managing Director
	
	GC&H INVESTMENTS, LLC
		
	By:	 	 /s/ John L.
Cardoza

			
		
	Print Name:	 	 John L.
Cardoza

			
		
	Title:	 	 Managing Member

 
			
	A&E INVESTMENT LLC
		
	By:	 	 /s/ Lip-Bu Tan

		 	Lip-Bu Tan

			
	
	JAFCO TECHNOLOGY PARTNERS, L.P.
		
	By:	 	 /s/ H. Joseph Horowitz

	
	Name: H. Joseph Horowitz
		
	Title:	 	 Managing Member
 JTP
Management Associates, L.L.C.

		 	Its General Partner

			
	
	KODIAK VENTURE PARTNERS II-A, L.P.
		
	By:	 	Kodiak Ventures Management II, L.P.
	Its:	 	General Partner
		
	By:	 	Kodiak Ventures Management Company, Inc.
	Its:	 	General Partner
		
	By:	 	 /s/ David A.
Furneaux

			
		
	 Print Name:
	 	 David A.
Furneau

			
		
	Title:	 	
President

			
	
	KODIAK VENTURE PARTNERS II-B, L.P.
		
	By:	 	Kodiak Ventures Management II, L.P.
	Its:	 	General Partner
		
	By:	 	Kodiak Ventures Management Company, Inc.
	Its:	 	General Partner
		
	By:	 	 /s/ David A.
Furneaux

			
		
	Print Name:	 	 David A.
Furneau

			
		
	Title:	 	 President

 
			
	 LITUNG VENTURE CAPITAL
 CORPORATION

		
	By:	 	 /s/ Tsui-Hui
Huang

			
		
	Print Name:	 	 Tsui-Hui
Huang

			
		
	Title:	 	
President

			
	
	 SHENGTUNG VENTURE CAPITAL
 CORPORATION

		
	By:	 	 /s/ Tsui-Hui
Huang

			
		
	Print Name:	 	 Tsui-Hui
Huang

			
		
	Title:	 	
President

			
	
	CANAAN EQUITY III L.P.
		
	 By:
	 	Canaan Equity Partners III LLC
		
	By:	 	 /s/ Eric A. Young

		 	Eric A. Young
		 	Member/Manager
	
	CANAAN EQUITY III ENTREPRENEURS LLC
		
	By:	 	Canaan Equity Partners III LLC
		
	By:	 	 /s/ Eric A. Young

		 	Eric A. Young
		 	Manager
	
	 CONNOR ERICKSON YOUNG
 IRREVOCABLE TRUST DTD 2/11/98

		
	By:	 	 /s/Eric A.
Young

					
	
	 /s/ Deepak
Kamra

			
	
	 /s/ Stephen L. Green

	
	 /s/ Gregory Kopchinsky

 

 
			
	 /s/ Guy Russo

	
	 /s/ Brent Ahrens

	
	 HAROLD HUGHES,
 HAROLD HUGHES INDIVIDUAL
 RETIREMENT ACCOUNT,

NANCY HUGHES INDIVIDUAL
 RETIREMENT
ACCOUNT

		
	By:	 	 /s/ Harold Hughes

	
	SFGO GP LLC
		
	By:	 	 /s/ Amir Nayyerhabibi

		 	Managing Director
		
	 Name:
	 	 Amir Nayyerhabibi

	
	BRIDGESCALE PARTNERS, L.P.
		
	By:	 	Bridgescale Partners GP I, L.L.C., its
		 	General Partner
		
	By:	 	 /s/ Rob Chaplinsky

		 	Managing Member
	
	ICE PICK INVESTMENT PARTNERS
		
	By:	 	 /s/ Jack Halford

		
	Name:	 	 Jack Halford

		
	Title:	 	 Managing Partner

	
	 SOFINNOVA VENTURE PARTNERS VI,
 LP, AS NOMINEE FOR SOFINNOVA VENTURE PARTNERS VI, L.P,
 SOFINNOVA PARTNERS VI
GmbH & CO.
 KG, AND SOFINNOVA VENTURE
 AFFILIATES VI, L.P.

		
	By:	 	 /s/ Eric Buatois

		
	Name:	 	 Eric Buatois

		
	Title:	 	 Managing Director

 
			
	ALLOY VENTURES 2005, L.P.
		
	BY:	 	ALLOY VENTURES 2005, LLC
	Its:	 	General Partner
		
	By:	 	 /s/ Ammar
Hanafi

			
		
	Print Name:	 	 Ammar
Hanafi

			
		
	Title:	 	 General
Partner

			
	
	PROCIFIC
		
	By:	 	 /s/ Mauza
Amiri

			
		
	Name:	 	 Mauza
Amiri

			
		
	Title:	 	
Director

			
	
	 DCM IV, L.P.

DCM AFFILIATES FUND IV, L.P.

		
	By:	 	DMC Investment Management IV, L.P.
		 	its General Director
		
	By:	 	DMC International IV, Ltd.
		 	its General Partner
		
	By;	 	 /s/ Carlton Amdahl

		 	Carlton Gene Amdahl, as authorized signatory

			
	
	RIM SHADOWS INVESTMENTS, LLC
		
	By:	 	 /s/ Jerome L.
Klinger

			
		
	Name:	 	 Jerome L.
Klinger

			
	
	 HERBERT S. MADAN REVOCABLE
 TRUST DATED 4/23/97

		
	By:	 	 /s/ Herbert
Madan

			
		
	Name:	 	 Herbert S.
Madan

			
		
	Title:	 	 Trustee

 

 
			
	CGM IRA CUSTODIAN FBO HAROLD HUGHES
		
	By:	 	 /s/ Harold
Hughes

			
		
	Name:	 	 Harold
Hughes

			
	
	CGM IRA CUSTODIAN FBO NANCY L. HUGHES
		
	By:	 	 N. L.
Hughes

			
		
	Name:	 	 Nancy L.
Hughes

			
	
	HAROLD E. & NANCY L. HUGHES TRUSTEES FBO THE HUGHES FAMILY TRUST DTD 3/6/95
		
	By:	 	 /s/ Harold Hughes       /s/ Nancy L.
Hughes

			
		
	Name:	 	 Harold Hughes       Nancy L.
Hughes

			
	
	HAROLD E. HUGHES ACF BRENTON M. HUGHES U/CA/UTMA
		
	By:	 	 /s/ Harold
Hughes

			
		
	Name:	 	 Harold
Hughes

			
	
	HAROLD E. HUGHES ACF ALLISON W. HUGHES U/CA/UTMA
		
	By:	 	 /s/ Harold
Hughes

			
		
	Name:	 	 Harold Hughes

 EXHIBIT A 
 SCHEDULE OF INVESTORS 
 Canaan Equity III L.P. 

2765 Sand Hill Road 
 Menlo Park, CA 94025

 Jafco Technology Partners, L.P. 

505 Hamilton Avenue 
 Palo Alto, CA 94301

 Morgenthaler Partners VII, L.P. 

Morgenthaler Ventures 
 2710 Sand Hill Road,
Suite 100 
 Menlo Park, CA 94025 
 El
Dorado Ventures VI, L.P. 
 2884 Sand Hill Road, Suite 121 
 Menlo Park, CA 94025 
 Kodiak Venture Partners II-A, L.P. 

Bay Colony Corporate Center 
 1000 Winter Street,
Suite 3800 
 Waltham, MA 02451 

Redpoint Ventures II, L.P. 
 3000 Sand Hill Road

 Building 2, Suite 290 
 Menlo Park,
CA 94025 
 Herbert S. Madan Revocable 

Trust dated 4/23/97 
 Chancellor V, L.P.

 Invesco Private Capital 
 1166 Avenue
of the Americas 
 New York, NY 10036 

Euromedia Venture Fund 
 INVESCO Private Capital

 1166 Avenue of the Americas 
 New
York, NY 10036 
 Canaan Equity III Entrepreneurs L.P. 
 2765 Sand Hill Road 
 Menlo Park, CA 94025 

 Litung Venture Capital Corporation 
 10F, 261, Sung-Chiang Road 
 Taipei, Taiwan, ROC 

Chancellor V-A, L.P. 
 INVESCO Private Capital

 1166 Avenue of the Americas 
 New
York, NY 10036 
 Kodiak Venture Partners II-B, L.P. 
 Bay Colony Corporate Center 
 1000 Winter Street, Suite 3800 

Waltham, MA 02451 
 Harold Hughes 

Shengtung Venture Capital Corporation 
 10F,
261, Sung-Chiang Road 
 Taipei, Taiwan, ROC 
 Albert Y. C. Yu 1996 Revocable Trust 
 Citiventure 2000, L.P. 

INVESCO Private Capital 
 1166 Avenue of the
Americas 
 New York, NY 10036 

Merrilee J Turley 
 The Debra L. Hansen Trust,
dated 2/7/03 
 El Dorado Technology ‘01, L.P. 
 2884 Sand Hill Road, Suite 121 
 Menlo Park, CA 94025 

Rim Shadows Investments, Llc 
 2550 Lyon Street

 San Francisco, CA 94123 
 GC&H
Investments 
 One Maritime Plaza, 20th Floor 
 San Francisco, CA 94111-3580 
 Attn: Jim Kindler 

Nancy Hughes Individual 
 Retirement Account

 A&E Investment 
 Lip-Bu Tan 
 c/o Walden International 
 One California Street, Suite 2800 
 San Francisco, CA 94111 

Granite Hill Capital Ventures, LLC 
 Invesco
Private Capital 
 1166 Avenue of the Americas 
 New York, NY 10036 
 Redpoint Associates II, LLC 

3000 Sand Hill Road 
 Building 2, Suite 290

 Menlo Park, CA 94025 
 Harold Hughes

 Individual Retirement Account 

Lighthouse Capital Partners IV, L.P. 
 500
Drake’s Landing Road 
 Greenbrae, California 94904-3011 
 Cadence Design Systems (Ireland) Limited 
 c/o General Counsel 

Cadence Designs Systems, Inc. 
 2655 Seely
Avenue, Building 5 
 San Jose, CA 95134 
 Redpoint Technology Partners Q-I, L.P. 
 3000 Sand Hill Road 

Building 2, Suite 290 
 Menlo Park, CA 94025

 Redpoint Technology Partners A-I, L.P. 
 3000 Sand Hill Road 
 Building 2, Suite 290 

Menlo Park, CA 94025 
 Cisco Systems, Inc.

 Cisco Systems, Inc. 
 170 West Tasman
Drive 
 San Jose, CA 95134 
 Attn:
Senior Vice President, Corporate Development 
 SFO GP LLC 
 3000 Sand Hill Road 

 Building 2, Suite 150 
 Menlo Park, CA 94025 
 Connor Erickson Young 

Irrevocable Trust dtd 2/11/98 
 Deepak Kamra

 Stephen L. Green 
 Gregory
Kopchinsky 
 Guy Russo 
 Brent Ahrens

 Intel Atlantic, Inc. 
 Attn:
Portfolio Manager 
 2200 Mission College Blvd 
 MS: RN6-46 
 Santa Clara, CA 95052 
 Institutional Venture Partners XI, L.P. 
 3000 Sand Hill Road 

Building 2, Suite 250 
 Menlo Park, CA 94025

 Institutional Venture Partners XI GmbH & 
 Co. Beteiligungs KG 
 3000 Sand Hill Road 
 Building 2, Suite 250 
 Menlo Park, CA 94025 

Alloy Ventures 2005, L.P. 
 400 Hamilton Avenue,
4th floor 
 Palo Alto, CA 94301 

Sofinnova Venture Partners VI, L.P., 
 as
Nominee for Sofinnova Venture 
 Partners VI, Sofinnova Partners VI 
 GmbH & Co. KG, and Sofinnova Venture 
 Affiliates VI, L.P. 

2765 Sand Hill Road 
 Menlo Park, CA 94025

 Bridgescale Partners, L.P. 
 2200
Sand Hill Road 

 Suite 240 
 Menlo Park, CA 94025 
 Ice Pick Partners 
 c/o Thomas Weisel Partners 
 1950 University Ave., Suite 501 

E. Palo Alto, CA 94303 
 DCM IV, L.P.

 2420 Sand Hill Road 
 Suite 200

 Menlo Park, CA 94025 
 DCM
Affiliates Fund IV, L.P. 
 2420 Sand Hill Road 
 Suite 200 
 Menlo Park, CA 94025 
 Procific 
 P.O. Box 7106, Corniche Street 
 Abu Dhabi, United Arab Emirates (U.A.E.) 
 Attn: Morten Thorsen 

Harold E. & Nancy L. Hughes 
 Trustees
FBO The Hughes Family Trust dtd 3/6/95 
 Harold E. Hughes ACF Brenton M. 
 Hughes U/CA/UTMA 
 Harold E. Hughes ACF 
 Allison W. Hughes U/CA/UTMA 
 CGM IRA Custodian FBO 

Harold Hughes 
 CGM IRA Custodian FBO

 Nancy L. Hughes 
 Herbert S. Madan
Revocable Trust dated 4/23/97

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