Document:

Amended and Restated Warrant to Purchase Stock

 Exhibit 4.4 
 THIS WARRANT AND THE SHARES ISSUABLE HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH
APPLICABLE LAWS. 
 AMENDED AND RESTATED WARRANT TO PURCHASE STOCK 

 

			
	 Corporation:

Number of Shares:
 Class of
Stock:
 Initial Exercise Price:
 Issue Date:
 Expiration Date:
	  	 PEREGRINE SEMICONDUCTOR CORPORATION
 525,000
 Common Stock
 $0.001 per share
 July 6, 2006
 July 6, 2013, subject to Section 4.1

 THIS WARRANT
CERTIFIES THAT, in consideration of the payment of $1.00 and for other good and valuable consideration, ESCALATE CAPITAL I, L.P. or its assignee (“Holder”) is entitled to purchase the number of fully paid and nonassessable shares of the
class of securities (the “Shares”) of the corporation (the “Company”) at the initial exercise price per Share (the “Warrant Price”) all as set forth above and as adjusted pursuant to Article 2 of this warrant, subject
to the provisions and upon the terms and conditions set forth in this warrant. 
 ARTICLE 1. EXERCISE. 

1.1 Method of Exercise. Holder may exercise this warrant only as set forth in Section 1.2. 

1.2 Exchange Right. Holder may from time to time exchange this warrant, in whole or in part, for a number of Shares determined by
dividing (a) the aggregate fair market value of the Shares or other securities otherwise issuable upon exercise of this warrant minus the aggregate Warrant Price of such Shares by (b) the fair market value of one Share. The fair market
value of the Shares shall be determined pursuant to Section 1.3. 
 1.3 Fair Market Value. For purposes of
Section 1.2, fair market value shall be determined as follows: 
 (a) If Holder elects to exchange this Warrant in
connection with the Company’s initial public offering and if the Company’s registration statement relating to such offering has been declared effective by the Securities and Exchange Commission (the “SEC”), the fair market value
of the Shares shall be the initial price to the public of the Shares (or the Company’s stock into which the Shares are convertible) specified in the final prospectus with respect to such offering (the “IPO”). 

(b) If the Shares are traded regularly in a public market, the fair market value of the Shares shall be the closing price of the Shares
(or the closing price of the Company’s stock into which the Shares are convertible) reported for the business day immediately prior to the date Holder delivers its Notice of Exercise or Exchange to the Company. 

(c) In all other cases, the Board of Directors of the Company in its reasonable good faith judgment shall determine the fair market value
of the Shares (or the Company’s stock into which the Shares are convertible) at the close of business on the business day immediately prior to the date Holder delivers its Notice of Exercise or Exchange to the Company. If Holder advises the
Board of Directors in writing that Holder disagrees with such determination, then the Holder shall promptly select three independent, nationally recognized investment banking firms and the Company shall select one such firm to determine fair market
value. If the fair market value as determined by such investment banking firm is 

 
greater than that determined by the Board of Directors, then all fees and expenses of such investment banking firm shall be paid by the Company. In all other circumstances, such fees and expenses
shall be paid by Holder. 
 1.4 Delivery of Certificate and New Warrant. Promptly after Holder exercises or exchanges
this warrant, the Company shall deliver to Holder certificates for the Shares acquired and, if this warrant has not been fully exercised or exchanged and has not expired, a new warrant representing the Shares not so acquired. 

1.5 Replacement of Warrants. On receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of this warrant and, in the case of loss, theft or destruction, on delivery of an affidavit of loss and indemnity agreement reasonably satisfactory in form and substance to the Company or, in the case of mutilation, on surrender and
cancellation of this warrant, the Company at its expense shall execute and deliver, in lieu of this warrant, a new warrant of like tenor. 

ARTICLE 2. ADJUSTMENTS TO THE SHARES. 
 2.1 Stock Dividends, Splits, Etc. If the Company declares or pays a dividend on its common stock payable in common stock or other securities, subdivides the outstanding common stock into a greater
amount of common stock, then upon exercise or exchange of this warrant, for each Share acquired, Holder shall receive, without cost to Holder, the total number and kind of securities to which Holder would have been entitled had Holder owned the
Shares of record as of the date the dividend or subdivision occurred. 
 2.2 Reclassification, Exchange or Substitution.
Upon any reclassification, exchange, substitution, or other event that results in a change of the number and/or class of the securities issuable upon exercise or conversion of this warrant, Holder shall be entitled to receive, upon exercise or
exchange of this warrant, the number and kind of securities and property that Holder would have received for the Shares if this warrant had been exercised or exchanged immediately before such reclassification, exchange, substitution, or other event.
The Company or its successor shall promptly issue to Holder a new warrant for such new securities or other property. The new warrant shall provide for adjustments which shall be as nearly equivalent as may be practicable to the adjustments provided
for in this Article 2 including, without limitation, adjustments to the Warrant Price and to the number of securities or property issuable upon exercise of the new warrant. The provisions of this Section 2.2 shall similarly apply to successive
reclassifications, exchanges, substitutions, or other events. 
 2.3 Adjustments for Combinations, Etc. If the
outstanding Shares are combined or consolidated, by reclassification or otherwise, into a lesser number of shares, the Warrant Price shall be proportionately increased. 
 2.4 Certificate as to Adjustments. Upon each adjustment of the Warrant Price, the Company at its expense shall promptly compute such adjustment, and furnish Holder with a certificate of its Chief
Financial Officer setting forth such adjustment and the facts upon which such adjustment is based. The Company shall, upon written request, furnish Holder a certificate setting forth the Warrant Price in effect upon the date thereof and the series
of adjustments leading to such Warrant Price. 
 ARTICLE 3. REPRESENTATIONS AND COVENANTS. 

3.1 Representations and Warranties of the Company. The Company hereby represents and warrants to the Holder as follows: 

  
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 (a) All Shares which may be issued upon the exercise or exchange of this warrant, and all
securities, if any, issuable upon conversion of the Shares, shall, upon issuance, be duly authorized, validly issued, fully paid and nonassessable, and free of any liens and encumbrances except for restrictions on transfer provided for herein or
under applicable federal and state securities laws. 
 (b) The Company’s capitalization table attached to this warrant is
true and complete as of November 17, 2010. 
 3.2 Notice of Certain Events. If the Company proposes at any time
(a) to declare any dividend or distribution upon its common stock, whether in cash, property, stock, or other securities and whether or not a regular cash dividend; (b) to offer for subscription pro rata to the holders of any class or
series of its stock any additional shares of stock of any class or series or other rights; (c) to effect any reclassification or recapitalization of common stock; or (d) to merge or consolidate with or into any other corporation, or sell,
lease, license, or convey all or substantially all of its assets, or to liquidate, dissolve or wind up, then, in connection with each such event, the Company shall give Holder (1) at least 10 days prior written notice of the date on which a
record will be taken for such dividend, distribution, or subscription rights (and specifying the date on which the holders of common stock will be entitled thereto) or for determining rights to vote, if any, in respect of the matters referred to in
(a) and (b) above; and (2) in the case of the matters referred to in (c) and (d) above at least 10 days prior written notice of the date when the same will take place (and specifying the date on which the holders of common
stock will be entitled to exchange their common stock for securities or other property deliverable upon the occurrence of such event). 
 3.3 Information Rights. So long as the Holder holds this warrant and/or any of the Shares, the Company shall deliver to the Holder (a) promptly after mailing, copies of all communiques
to the shareholders of the Company, (b) within 150 days after the end of each fiscal year of the Company, the annual audited financial statements of the Company certified by independent public accountants of recognized standing and
(c) within 45 days after the end of each of the first three quarters of each fiscal year, the Company’s quarterly, unaudited financial statements. 
 3.4 Reservation of Shares. The Company shall at all times reserve and keep available out of its authorized but unissued capital stock, solely for the purpose of issuance upon the exercise or
exchange of this warrant, the maximum number of Shares issuable upon exercise of this warrant (and shares issuable, directly or indirectly, upon conversion of the Shares, if any). 

3.5 Purchase for Own Account. This Warrant and the securities to be acquired upon exercise of this Warrant by the Holder will be
acquired for investment for the Holder’s account, not as a nominee or agent, and not with a view to the public resale or distribution within the meaning of the Act. Holder also represents that the Holder has not been formed for the specific
purpose of acquiring this Warrant or the Shares. 
 3.6 Disclosure of Information. The Holder has received or has had
full access to all the information it considers necessary or appropriate to make an informed investment decision with respect to the acquisition of this Warrant and its underlying securities. The Holder further has had an opportunity to ask
questions and receive answers from the Company regarding the terms and conditions of the offering of this Warrant and its underlying securities and to request additional information necessary to verify any information furnished to the Holder or to
which the Holder has access. 
 3.7 Investment Experience. The Holder understands that the purchase of this Warrant and
its underlying securities involves substantial risk. The Holder has experience as an investor in securities of companies in the development stage and acknowledges that the Holder can bear the economic risk of such

  
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Holder’s investment in this Warrant and its underlying securities and has such knowledge and experience in financial or business matters that the Holder is capable of evaluating the merits
and risks of its investment in this Warrant and its underlying securities and/or has a preexisting personal or business relationship with the Company and certain of its officers, directors or controlling persons of a nature and duration that enables
the Holder to be aware of the character, business acumen and financial circumstances of such persons. 
 3.8 Accredited
Investor Status. The Holder is an “accredited investor” within the meaning of Regulation D promulgated under the Act. 
 3.9 The Act. The Holder understands that this Warrant and the Shares issuable upon exercise or conversion hereof have not been registered un the Act in reliance upon a specific exemption therefrom,
which exemption depends upon, among other things, the bona fide nature of the Holder’s investment intent as expressed herein. The Holder understands that this Warrant and the Shares issued upon any exercise or conversion hereof must be held
indefinitely unless subsequently registered under the 1933 Act and qualified under applicable state securities laws, or unless one or more exemptions from such registration and qualification are otherwise available. 

ARTICLE 4. MISCELLANEOUS. 

4.1 Term. This warrant is exercisable in whole or in part, at any time and from time to time on or before the earlier of
(i) the Expiration Date set forth above, (ii) the later of June 30, 2007 or the Sell Date (as defined below), or (iii) the Company’s Merger (as defined below). If this warrant has not been exercised prior to the Expiration
Date set forth above, this warrant shall be deemed to have been automatically exchanged on the Expiration Date set forth above for shares pursuant to Section 1.2. As used herein, “Sell Date” shall mean the date on which the Holder is
no longer bound by the Market Standoff Period or any other lockup period imposed upon Holder in connection with the Company’s IPO. As used herein, “Merger” shall mean the Company’s sale of all or substantially all of its assets
or the acquisition of the Company by another entity by means of merger or consolidation resulting in the exchange of the outstanding shares of the Company for securities or consideration issued, or caused to be issued, by the acquiring corporation
or its subsidiary, unless the stockholders of the Company immediately prior thereto hold at least 50% of the voting power of the surviving corporation in such a transaction. 
 4.2 Legends. This warrant and the Shares (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) shall be imprinted with a legend in substantially the following
form: 
 THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD, PLEDGED OR OTHERWISE
TRANSFERRED EXCEPT IN ACCORDANCE WITH APPLICABLE LAWS. 
 4.3 Compliance with Securities Laws on Transfer. This warrant
and the Shares issuable upon exercise of this warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) may not be transferred or assigned in whole or in part without compliance with applicable federal and
state securities laws by the transferor and the transferee (including, without limitation, the delivery of investment representation letters and legal opinions reasonably acceptable to the Company, as reasonably requested by the Company).

 4.4 Transfer Procedure. Subject to the provisions of Section 4.3, Holder may transfer all or part of this warrant
or the Shares issuable upon exercise of this warrant (or the securities issuable, directly 

  
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or indirectly, upon conversion of the Shares, if any) by giving the Company notice of the portion of the warrant being transferred setting forth the name, address and taxpayer identification
number of the transferee and surrendering this warrant to the Company for reissuance to the transferee(s) (and Holder, if applicable); provided, however, that Holder may transfer all or part of this warrant to its affiliates at any time
without notice to the Company, and such affiliate shall then be entitled to all the rights of Holder under this warrant and any related agreements, and the Company shall cooperate fully in ensuring that any stock issued upon exercise of this warrant
is issued in the name of the affiliate that exercises the warrant. The terms and conditions of this warrant shall inure to the benefit of, and be binding upon, the Company and the holders hereof and their respective permitted successors and assigns.

 4.5 Notices. All notices and other communications from the Company to the Holder, or vice versa, shall be deemed
delivered and effective when given personally or mailed by first-class registered or certified mail, postage prepaid, at such address as may have been furnished to the Company or the Holder, as the case may be, in writing by the Company or such
Holder from time to time. All notices to the Holder shall be addressed as follows: 
  

					
		 	Escalate Capital I, L.P.	 	
		 	Attn:                         	 	
		 	2400 Sand Hill Road	 	
		 	Menlo Park, CA 94025	 	

 4.6 Waiver. This warrant and any term hereof may be changed, waived, discharged or terminated
only by an instrument in writing signed by the party against which enforcement of such change, waiver, discharge or termination is sought. 
 4.7 Attorneys’ Fees. In the event of any dispute between the parties concerning the terms and provisions of this warrant, the party prevailing in such dispute shall be entitled to collect from
the other party all costs incurred in such dispute, including reasonable attorneys’ fees. 
 4.8 Governing Law. This
warrant shall be governed by and construed in accordance with the laws of the State of California, without giving effect to its principles regarding conflicts of law. 
 4.9 Lock-up. Holder and transferee, if any, hereby agrees that, in connection with the Company’s IPO, if so requested by the Company or any representative of the underwriters (the
“Managing Underwriter”), such Holder or transferee shall not sell or otherwise transfer any securities of the Company during the period specified by the Company’s Board of Directors at the request of the Managing Underwriter (the
“Market Standoff Period”), with such period not to exceed 180 days following the effective date of the registration statement of the Company filed under the Securities Act; provided, however, that such 180 day period may be extended to the
extent necessary to permit any Managing Underwriter to comply with NASD Rule 2711(f)(4). The Company may impose stop-transfer instructions with respect to securities subject to the foregoing restrictions until the end of such Market Standoff Period.
Notwithstanding the foregoing or anything to the contrary contained herein Holder shall not be bound by any lockup period or Market Standoff Period or otherwise obligated to comply with this Section 4.9 if to do so would impose on Holder any
lockup period, Market Standoff Period or other restriction any less favorable to the Holder than the lockup period, Market Standoff Period or other similar restriction imposed upon each officer and director of the Company and each holder of at least
1% of the outstanding common stock of the Company (on a fully-diluted basis). 
 The Company has caused this warrant to be duly
executed and delivered as of the Issue Date specified above. 

  
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	PEREGRINE SEMICONDUCTOR CORPORATION
		
	By:	 	 /s/ Jay C.
Biskupski

			
		
	Name:	 	 Jay C.
Biskupski

			
		
	Title:	 	 Chief Financial Officer

  
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 APPENDIX 1 
 NOTICE OF EXERCISE 
 1. The undersigned hereby elects to (check applicable
blank below): 
  

			
	  
	  	exchange the attached warrant for Shares in the manner specified in the warrant. This exchange is exercised with respect to
                    of the Shares covered by the warrant.
		  

 2. Please issue a certificate or certificates representing said
shares in the name of the undersigned or in such other name as is specified below: 
 Escalate Capital I, L.P.

 Attn:
                     
 2400 Sand Hill Road 
 Menlo Park, CA 94025 

Or Registered Assignee 
 3. The undersigned represents it is acquiring the Shares solely for its own account and not as a nominee for any other party and not with a view toward the resale or distribution thereof except in
compliance with applicable securities laws. 
  

	
	Escalate Capital I, L.P. or Registered Assignee
	
	  

	(Signature)
	
	  

	(Date)Warrant to Purchase Stock

 Exhibit 4.5 
 WARRANT TO PURCHASE STOCK 
 THIS WARRANT AND THE SHARES ISSUABLE
HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT AND PURSUANT TO THE PROVISIONS OF ARTICLE 5 BELOW, MAY NOT BE OFFERED, SOLD OR OTHERWISE
TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER SAID ACT AND APPLICABLE STATE SECURITIES LAW OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR
TRANSFER, PLEDGE OR HYPOTHECATION IS EXEMPT FROM REGISTRATION. 
  

			
	 Company:
	  	Peregrine Semiconductor Corporation, a Delaware corporation
	 Number of Shares:
	  	17,310
	 Class of Stock:
	  	Series A1 Preferred
	 Warrant Price:
	  	$0.69325 per share
	 Issue Date:
	  	June 18, 2003
	 Expiration Date:
	  	June 18 2008

 THIS WARRANT CERTIFIES THAT,
for the agreed upon value of $1.00 and for other good and valuable consideration, SILICON VALLEY BANK (“Holder”) is entitled to purchase the number of fully paid and nonassessable shares of the class of securities (the “Shares”)
of the company (the “Company”) at the Warrant Price, all as set forth above and as adjusted pursuant to Article 2 of this Warrant, subject to the provisions and upon the terms and conditions set forth in this Warrant. 

ARTICLE 1. EXERCISE. 

1.1 Method of Exercise. Holder may exercise this Warrant by delivering a duly executed Notice of Exercise in substantially the form
attached as Appendix 1 to the principal office of the Company. Unless Holder is exercising the conversion right set forth in Article 1.2, Holder shall also deliver to the Company a check, wire transfer (to an account designated by the Company), or
other from of payment acceptable to the Company for the aggregate Warrant Price for the Shares being purchased. 
 1.2
Conversion Right. In lieu of exercising this Warrant as specified in Article 1.1, Holder may from time to time convert this Warrant, in whole or in part, into a number of Shares determined by dividing (a) the aggregate fair market value
of the Shares or other securities otherwise issuable upon exercise of this Warrant minus the aggregate Warrant Price of such Shares by (b) the fair market value of one Share. The fair market value of the Shares shall be determined pursuant to
Article 1.3. 
 1.3 Fair Market Value. If the Company’s common stock is traded in a public market and the Shares are
common stock, the fair market value of each Share shall be the closing price of a Share reported for the business day immediately before Holder delivers its Notice of Exercise to the Company (or in the instance where the Warrant is exercised
immediately prior to the effectiveness of the Company’s initial public offering, the “price to public” per share price specified in the final prospectus relating to such offering). If the Company’s common stock is traded in a
public market and the Shares are preferred stock, the fair market value of a Share shall be the closing price of a share of the Company’s common stock reported for the business day immediately before Holder delivers its Notice of Exercise to
the Company (or, in the 

 
instance where the Warrant is exercised immediately prior to the effectiveness of the Company’s initial public offering, the initial “price to public” per share price specified in
the final prospectus relating to such offering), in both cases, multiplied by the number of shares of the Company’s common stock into which a Share is convertible. If the Company’s common stock is not traded in a public market, the Board
of Directors of the Company shall determine fair market value in its reasonable good faith judgment. 
 1.4 Delivery of
Certificate and New Warrant. Promptly after Holder exercises or converts this Warrant and, if applicable, the Company receives payment of the aggregate Warrant Price, the Company shall deliver to Holder certificates for the Shares acquired and,
if this Warrant has not been fully exercised or converted and has not expired, a new Warrant representing the Shares not so acquired. 
 1.5 Replacement of Warrants. On receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant and, in the case of loss, theft or
destruction, on delivery of an indemnity agreement reasonably satisfactory in form and amount to the Company or, in the case of mutilation, or surrender and cancellation of this Warrant, the Company shall execute and deliver, in lieu of this
Warrant, a new warrant of like tenor. 
 1.6 Treatment of Warrant Upon Acquisition of Company. 

1.6.1 “Acquisition”. For the purpose of this Warrant, “Acquisition” means any sale, license, or
other disposition of all or substantially all of the assets of the Company, or any reorganization, consolidation, or merger of the Company where the holders of the Company’s securities before the transaction beneficially own less than 50% of
the outstanding voting securities of the surviving entity after the transaction. 
 1.6.2 Treatment of Warrant
at Acquisition. 
 A) Upon the written request of the Company, Holder agrees that, in the event of an Acquisition in which the sole
consideration is cash, either (a) Holder shall exercise its conversion or purchase right under this Warrant and such exercise will be deemed effective immediately prior to the consummation of such Acquisition or (b) if Holder elects not to
exercise the Warrant, this Warrant will expire upon the consummation of such Acquisition. The Company shall provide the Holder with written notice of its request relating to the foregoing (together with such reasonable information as the Holder may
request in connection with such contemplated Acquisition giving rise to such notice), which is to be delivered to Holder not less than ten (10) days prior to the closing of the proposed Acquisition. 

B) Upon the written request of the Company, Holder agrees that, in the event of an Acquisition that is an “arms length” sale of all or
substantially all of the Company’s assets (and only its assets) to a third party that is not an Affiliate (as defined below) of the Company (a “True Asset Sale”), either (a) Holder shall exercise its conversion or purchase right
under this Warrant and such exercise will be deemed effective immediately prior to the consummation of such Acquisition or (b) if Holder elects not to exercise the Warrant, this Warrant will continue until the Expiration Date if the Company
continues as a going concern following the closing of any such True Asset Sale. The Company shall provide the Holder with written notice of its request relating to the foregoing (together with such reasonable information as the Holder may request in
connection with such contemplated Acquisition giving rise to such notice), which is to be delivered to Holder not less than ten (10) days prior to the closing of the proposed Acquisition. 

  
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 C) Upon the closing of any Acquisition other than those particularly described in subsections (A) and
(B) above, the successor entity shall assume the obligations of this Warrant, and this Warrant shall be exercisable for the same securities, cash, and property as would be payable for the Shares issuable upon exercise of the unexercised portion
of this Warrant as if such Shares were outstanding on the record date for the Acquisition and subsequent closing. The Warrant Price and/or number of Shares shall be adjusted accordingly. 
 As used herein “Affiliate” shall mean any person or entity that owns or controls directly or indirectly ten (10) percent or more of the stock of Company, any person or entity that
controls or is controlled by or is under common control with such persons or entities, and each of such person’s or entity’s officers, directors, joint venturers or partners, as applicable. 

ARTICLE 2. ADJUSTMENTS TO THE SHARES. 
 2.1 Stock Dividends, Splits, Etc. If the Company declares or pays a dividend on the Shares payable in common stock, or other securities, then upon exercise of this Warrant, for each Share acquired,
Holder shall receive, without cost to Holder, the total number and kind of securities to which Holder would have been entitled had Holder owned the Shares of record as of the date the dividend occurred. If the Company subdivides the Shares by
reclassification or otherwise into a greater number of shares or takes any other action which increase the amount of stock into which the Shares are convertible, the number of shares purchasable hereunder shall be proportionately increased and the
Warrant Price shall be proportionately decreased. If the outstanding shares are combined or consolidated, by reclassification or otherwise, into a lesser number of shares, the Warrant Price shall be proportionately increased and the number of Shares
shall be proportionately decreased. 
 2.2 Reclassification, Exchange, Combinations or Substitution. Upon any
reclassification, exchange, substitution, or other event that results in a change of the number and/or class of the securities issuable upon exercise or conversion of this Warrant, Holder shall be entitled to receive, upon exercise or conversion of
this Warrant, the number and kind of securities and property that Holder would have received for the Shares if this Warrant had been exercised immediately before such reclassification, exchange, substitution, or other event. Such an event shall
include any automatic conversion of the outstanding or issuable securities of the Company of the same class or series as the Shares to common stock pursuant to the terms of the Company’s Articles or Certificate (as applicable) of Incorporation
upon the closing of a registered public offering of the Company’s common stock. The Company or its successor shall promptly issue to Holder an amendment to this Warrant setting forth the number and kind of such new securities or other property
issuable upon exercise or conversion of this Warrant as a result of such reclassification, exchange, substitution or other event that results in a change of the number and/or class of securities issuable upon exercise or conversion of this Warrant.
The amendment to this Warrant shall provide for adjustments which shall be as nearly equivalent as may be practicable to the adjustments provided for in this Article 2 including, without limitation, adjustments to the Warrant Price and to the number
of securities or property issuable upon exercise of the new Warrant. The provisions of this Article 2.2 shall similarly apply to successive reclassifications, exchanges, substitutions, or other events. 

2.3 Adjustments for Diluting Issuances. The number of shares of common stock issuable upon conversion of the Shares issuable upon
conversion or exercise of this Warrant shall be subject to adjustment, from time to time in the manner set forth in the Company’s Certificate of Incorporation (attached hereto as Exhibit A) as if the Shares were issued and outstanding on
and as of the date of any such required adjustment. The provisions set forth for the Shares in the Company’s Certificate of Incorporation relating to the above in effect as of the Issue Date may not be amended, modified or waived, without the
prior written 

  
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consent of Holder unless such amendment, modification or waiver affects the rights associated with the Shares in the same manner as such amendment, modification or waiver affects the rights
associated with all other shares of the same series and class as the Shares granted to the Holder. 
 2.4 No Impairment.
The Company shall not, by amendment of its Articles or Certificate (as applicable) of Incorporation or through a reorganization, transfer of assets, consolidation, merger, dissolution, issue, or sale of securities or any other voluntary action,
avoid or seek to avoid the observance or performance of any of the terms to be observed or performed under this Warrant by the Company, but shall at all times in good faith assist in carrying out of all the provisions of this Article 2 and in taking
all such action as may be necessary or appropriate to protect Holder’s rights under this Article against impairment. 
 2.5
Fractional Shares. No fractional Shares shall be issuable upon exercise or conversion of the Warrant and the number of Shares to be issued shall be rounded down to the nearest whole Share. If a fractional share interest arises upon any
exercise or conversion of the Warrant, the Company shall eliminate such fractional share interest by paying Holder the amount computed by multiplying the fractional interest by the fair market value of a full Share. 

2.6 Certificate as to Adjustments. Upon each adjustment of the Warrant Price and the Conversion Price for the Series Al Preferred
Stock (as defined in the Company’s Certificate of Incorporation), the Company shall promptly notify Holder in writing, and, at the Company’s expense, promptly compute such adjustment, and furnish Holder with an officer’s certificate
setting forth such adjustment, the Conversion Price or the Warrant Price (as applicable), and the facts upon which such adjustment is based. 

ARTICLE 3. REPRESENTATIONS AND COVENANTS OF THE COMPANY. 
 3.1 Representations and Warranties. The Company represents and warrants to the Holder as follows: 
 (a) The initial Warrant Price referenced on the first page of this Warrant is not greater than (i) the price per share at which the Shares were last issued in an arms-length transaction in which at
least $500,000 of the Shares were sold and (ii) the fair market value of the Shares as of the date of this Warrant. 
 (b) All Shares which may be issued upon the exercise of this Warrant, and all securities, if any, issuable upon conversion of the Shares, shall, upon issuance, be duly authorized, validly issued, fully
paid and nonassessable, and free of any liens and encumbrances except for restrictions on transfer provided for herein or under applicable federal and state securities laws. 

(c) The Capitalization Table provided to Holder on the Issue Date was true and complete. 

3.2 Notice of Certain Events. If the Company proposes at any time (a) to declare any dividend or distribution upon any of its
stock, whether in cash, property, stock, or other securities and whether or not a regular cash dividend; (b) to offer for sale additional shares of any class or series of the Company’s stock; (c) to effect any reclassification or
recapitalization of any of its stock; (d) to merge or consolidate with or into any other corporation, or sell, lease, license, or convey all or substantially all of its assets, or to liquidate, dissolve or wind up; or (e) offer holders of
registration rights the opportunity to participate in an underwritten public offering of the company’s securities for cash, then, in connection with each such event, the 

  
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Company shall give Holder: (1) at least 10 days prior written notice of the date on which a record will be taken for such dividend, distribution, or subscription rights (and specifying the
date on which the holders of common stock will be entitled thereto) or for determining rights to vote, if any, in respect of the matters referred to in (c) and (d) above; (2) in the case of the matters referred to in (c) and
(d) above at least 10 days prior written notice of the date when the same will take place (and specifying the date on which the holders of common stock will be entitled to exchange their common stock for securities or other property deliverable
upon the occurrence of such event); and (3) in the case of the matter referred to in (e) above, the same notice as is given to the holders of such registration rights. 

3.3 Registration Rights, Market Standoff 
 (a) The Holder shall be entitled to all of the benefits of security holders under that certain Investor Rights Agreement dated as of January 10, 2003 attached hereto as Exhibit B (the
“Rights Agreement”), in each such case as if the Holder were a party to the Rights Agreement. 
 (b)
The Holder agrees it shall be subject to any obligations set forth for shares of the Series A1 Preferred Stock in the Rights Agreement with respect to a market standoff period in connection with an Initial Public Offering. 

(c) The provisions set forth in the Investors’ Right Agreement may not be amended, modified or waived without the
prior written consent of Holder unless such amendment, modification or waiver affects the rights associated with the Shares in the same manner as such amendment, modification, or waiver affects the rights associated with all other shares of the same
series and class as the Shares granted to the Holder. 
 3.4 No Shareholder Rights. Except as provided in this Warrant,
the Holder will not have any rights as a shareholder of the Company until the exercise of this Warrant. 
 ARTICLE 4. REPRESENTATIONS,
WARRANTIES OF THE HOLDER. The Holder represents and warrants to the Company as follows: 
 4.1 Purchase for Own
Account. This Warrant and the securities to be acquired upon exercise of this Warrant by the Holder will be acquired for investment for the Holder’s account, not as a nominee or agent, and not with a view to the public resale or
distribution within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). Holder also represents that the Holder has not been formed for the specific purpose of acquiring this Warrant or the Shares. 

4.2 Disclosure of Information. The Holder has received or has had full access to all the information it considers necessary or
appropriate to make an informed investment decision with respect to the acquisition of this Warrant and its underlying securities. The Holder further has had an opportunity to ask questions and receive answers from the Company regarding the terms
and conditions of the offering of this Warrant and its underlying securities and to obtain additional information (to the extent the Company possessed such information or could acquire it without unreasonable effort or expense) necessary to verify
any information furnished to the Holder or to which the Holder has access. 
 4.3 Investment Experience. The Holder
understands that the purchase of this Warrant and its underlying securities involves substantial risk. The Holder has experience as an investor in securities of companies in the development stage and acknowledges that the Holder can bear the
economic risk of such Holder’s investment in this Warrant and its underlying securities and has such knowledge and experience in financial or business matters that the Holder 

  
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is capable of evaluating the merits and risks of its investment in this Warrant and its underlying securities and/or has a preexisting personal or business relationship with the Company and
certain of its officers, directors or controlling persons of a nature and duration that enables the Holder to be aware of the character, business acumen and financial circumstances of such persons. 

4.4 Accredited Investor Status. The Holder is an “accredited investor” within the meaning of Regulation D promulgated
under the Securities Act. 
 4.5 The Securities Act. The Holder understands that this Warrant and the Shares issuable
upon exercise or conversion hereof have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of the Holder’s investment intent as
expressed herein. The Holder understands that this Warrant and the Shares issued upon any exercise or conversion hereof must be held indefinitely unless subsequently registered under the Securities Act and qualified under applicable state securities
laws, or unless exemption from such registration and qualification are otherwise available. 
 ARTICLE 5. MISCELLANEOUS. 

5.1 Term: This Warrant is exercisable in whole or in part at any time and from time to time on or before the Expiration Date.

 5.2 Legends. This Warrant and the Shares (and the securities issuable, directly or indirectly, upon conversion of the
Shares, if any) shall be imprinted with a legend in substantially the following form: 
 THIS WARRANT AND THE SHARES ISSUABLE
HEREUNDER HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT, OR THE SECURITIES LAWS OF ANY STATE AND, EXCEPT AND PURSUANT TO THE PROVISIONS OF ARTICLE 5 BELOW, MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND
UNTIL REGISTERED UNDER SAID ACT AND APPLICABLE STATE SECURITIES LAW OR, IN THE OPINION OF LEGAL COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS EXEMPT FROM
REGISTRATION. 
 5.3 Compliance with Securities Laws on Transfer. This Warrant and the Shares issuable upon exercise of
this Warrant (and the securities issuable, directly or indirectly, upon conversion of the Shares, if any) may not be transferred or assigned in whole or in part without compliance with applicable federal and state securities laws by the transferor
and the transferee (including, without limitation, the delivery of investment representation letters and legal opinions reasonably satisfactory to the Company, as reasonably requested by the Company). The Company shall not require Holder to provide
an opinion of counsel if the transfer is to Silicon Valley Bancshares (Holder’s parent company) or any other affiliate of Holder. Additionally, the Company shall also not require an opinion of counsel if there is no material question, as
reasonably determined by Company and its counsel, as to the availability of current information as referenced in Rule 144(c), Holder represents that it has complied with Rule 144(d) and (e) in reasonable detail (and such representations are
determined to be reasonable to Company and its counsel), the selling broker represents that it has complied with Rule 144(f), and the Company is provided with a copy of Holder’s notice of proposed sale. 

  
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 5.4 Transfer Procedure. Upon receipt by Holder of the executed Warrant, Holder will
transfer all of this Warrant to Silicon Valley Bancshares, Holder’s parent company, by execution of an Assignment substantially in the form of Appendix 2. Subject to compliance with the provisions of Article 5.3 and upon providing Company with
written notice, Silicon Valley Bancshares and any subsequent Holder may transfer all or part of this Warrant or the Shares issuable upon exercise of this Warrant (or the Shares issuable directly or indirectly, upon conversion of the Shares, if any)
to any transferee, provided, however, in connection with any such transfer, Silicon Valley Bancshares or any subsequent Holder will give the Company notice of the portion of the Warrant being transferred with the name, address and taxpayer
identification number of the transferee and Holder will surrender this Warrant to the Company for reissuance to the transferee(s) (and Holder if applicable). The Company may refuse to transfer this Warrant or the Shares to any person who directly
competes with the Company, unless, in either case, the stock of the Company is publicly traded. 
 5.5 Notices. All
notices and other communications from the Company to the Holder, or vice versa, shall be deemed delivered and effective when given personally or mailed by first-class registered or certified mail, postage prepaid (or on the first business day after
transmission by facsimile), at such address as may have been furnished to the Company or the Holder, as the case may be, in writing by the Company or the Holder from time to time. Effective upon receipt of the fully executed Warrant and the initial
transfer described in Article 5.4 above, all notices to the Holder shall be addressed as follows until the Company receives notice of a change of address in connection with a transfer or otherwise: 

Silicon Valley Bancshares 
 Attn: Treasury Department 
 3003 Tasman Drive, HA 200 

Santa Clara, CA 95054 
 Telephone: 408-654-7400 
 Facsimile: 408-496-2405 

Notice to the Company shall be addressed as follows until the Holder receives notice of a change in address: 

Peregrine Semiconductor Corporation 

Attn: Controller 
 6175 Nancy Ridge Drive 
 San Diego, California 92121 

Telephone: 858-455-0660 
 Facsimile: 858-455-0770 
 5.6 Waiver. This Warrant and any term hereof may
be changed, waived, discharged or terminated only by an instrument in writing signed by the party against which enforcement of such change, waiver, discharge or termination is sought. 

5.7 Attorney’s Fees. In the event of any dispute between the parties concerning the terms and provisions of this Warrant, the
party prevailing in such dispute shall be entitled to collect from the other party all costs incurred in such dispute, including reasonable attorney’s fees. 
 5.8 Automatic Conversion upon Expiration. In the event that, upon the Expiration Date, the fair market value of one Share (or other security issuable upon the exercise hereof) as determined in
accordance with Section 1.3 above is greater than the Exercise Price in effect on such date, then this Warrant shall automatically be deemed on and as of such date to be 

  
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converted pursuant to Section 1.2 above as to all Shares (or such other securities) for which it shall not previously have been exercised or converted, and the Company shall promptly deliver
a certificate representing the Shares (or such other securities) issued upon such conversion to the Holder. 
 5.9
Counterparts. This Warrant may be executed in counterparts, all of which together shall constitute one and the same agreement. 
 5.10 Governing Law. This Warrant shall be governed by and construed in accordance with the laws of the State of California, without giving effect to its principles regarding conflicts of law.

 “COMPANY” 
  

			
	PEREGRINE SEMICONDUCTOR CORPORATION
		
	By	 	/s/ James Cable
		 	James Cable, President and CEO

 “HOLDER”

  

			
	SILICON VALLEY BANK
		
	By	 	/s/ Deborah Brinker
	Name:	 	Deborah Brinker
	Title:	 	Vice President

  
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