Document:

Form of Medium-Term Notes, Series K due June 18, 2015

 Exhibit 4.2 

 
 [Face of Note] 

Unless this certificate is presented by an authorized representative of The Depository Trust Company, a New York
corporation (“DTC”), to the Company or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as requested by an authorized
representative of DTC (and any payment is made to Cede & Co. or such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL
inasmuch as the registered owner hereof, Cede & Co., has an interest herein. 
  

			
	 CUSIP NO. 94986RQC8
	  	FACE AMOUNT: $                  
	 REGISTERED NO.     
	  	

 WELLS FARGO & COMPANY 

MEDIUM-TERM NOTE, SERIES K 
 Due Nine Months or More From Date of Issue 
 Securities Linked to the
SPDR® S&P 500® ETF Trust due June 18, 2015 
 WELLS FARGO & COMPANY, a corporation duly organized and existing under the laws of the State of Delaware (hereinafter called the “Company,” which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & Co., or registered assigns, an amount equal to the Redemption Amount (as defined below), in such coin or currency of the United
States of America as at the time of payment is legal tender for payment of public and private debts, on the Stated Maturity Date. The “Initial Stated Maturity Date” shall be June 18, 2015. If no Market Disruption Event (as
defined below) occurs or is continuing on the scheduled Calculation Day (as defined below), the Initial Stated Maturity Date will be the “Stated Maturity Date.” If a Market Disruption Event occurs or is continuing on the scheduled
Calculation Day, the “Stated Maturity Date” shall be the later of (i) three Business Days (as defined below) after the postponed Calculation Day and (ii) the Initial Stated Maturity Date. This Security shall not bear any
interest. 
 Any payments on this Security at Maturity will be made against presentation of this Security at the
office or agency of the Company maintained for that purpose in the City of Minneapolis, Minnesota and at any other office or agency maintained by the Company for such purpose. 

“Face Amount” shall mean, when used with respect to this Security, the amount set forth on the face of
this Security as its “Face Amount.” 

 Determination of Redemption Amount 

The “Redemption Amount” of this Security will equal: 

 

	 	•	 	 if the Ending Price is greater than the Starting Price: the lesser of: 

 

	 	  (i)	 the Face Amount plus: 

  

 
 

 
  

	 	(ii)	 the Capped Value; 

  

	 	•	 	 if the Ending Price is less than or equal to the Starting Price, but greater than or equal to the Threshold Price: the Face Amount; or

  

	 	•	 	 if the Ending Price is less than the Threshold Price: the Face Amount minus: 

 
  
 

 
 The “Fund” shall mean the SPDR S&P 500 ETF Trust. 

The “Pricing Date” shall mean June 13, 2013. 

The “Starting Price” is $164.22, the Fund Closing Price of the Fund on the Pricing Date. 

The “Ending Price” will be the Fund Closing Price of the Fund on the Calculation Day. 

The “Fund Closing Price” with respect to the Fund on any Trading Day means the product of (i) the
Closing Price of one share of the Fund (or one unit of any other security for which a Fund Closing Price must be determined) on such Trading Day and (ii) the Adjustment Factor on such Trading Day. 

The “Closing Price” with respect to a share of the Fund (or one unit of any other security for which a
Closing Price must be determined) on any Trading Day means the price, at the scheduled weekday closing time, without regard to after hours or any other trading outside the regular trading session hours, of the share on the principal United States
securities exchange registered under the Securities Exchange Act of 1934, as amended, on which the share (or any such other security) is listed or admitted to trading. 

The “Adjustment Factor” means, with respect to a share of the Fund (or one unit of any other security
for which a Fund Closing Price must be determined), 1.0, subject to adjustment in the event of certain events affecting the shares of the Fund. See “—Anti-dilution Adjustments Relating to the Fund; Alternate Calculation —Anti-dilution
Adjustments” below. 

  
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 The “Capped Value” is 113.30% of the Face Amount of this
Security. 
 The “Threshold Price” is $131.38, which is equal to 80% of the Starting Price.

 The “Participation Rate” is 100%. 

The “Underlying Index” shall mean the S&P 500 Index. 

“Business Day” shall mean a day, other than a Saturday or Sunday, that is neither a legal holiday nor a
day on which banking institutions are authorized or required by law or regulation to close in New York, New York. 
 A “Trading Day” with respect to the Fund means a day, as determined by the Calculation Agent, on which the Relevant Exchange (as defined below) and each Related Exchange (as defined
below) with respect to the Fund, or any successor thereto, if applicable, are scheduled to be open for trading for their respective regular trading sessions. 
 The “Relevant Exchange” for the Fund means the primary exchange or quotation system on which shares (or other applicable securities) of the Fund are traded, as determined by the
Calculation Agent. 
 The “Related Exchange” for the Fund means each exchange or quotation
system where trading has a material effect (as determined by the Calculation Agent) on the overall market for futures or options contracts relating to the Fund. 

The “Calculation Day” shall be June 15, 2015 or, if such day is not a Trading Day, the next
succeeding Trading Day. The Calculation Day is subject to postponement due to the occurrence of a Market Disruption Event. If a Market Disruption Event occurs or is continuing with respect to the Fund on the Calculation Day, such Calculation Day
will be postponed to the first succeeding Trading Day on which a Market Disruption Event has not occurred and is not continuing. If such first succeeding Trading Day has not occurred as of the eighth Trading Day after the originally scheduled
Calculation Day, that eighth Trading Day shall be deemed the Calculation Day. If the Calculation Day has been postponed eight Trading Days after the originally scheduled Calculation Day and a Market Disruption Event occurs or is continuing with
respect to the Fund on such eighth Trading Day, the Calculation Agent will determine the Closing Price of the Fund on such eighth Trading Day based on its good faith estimate of the value of the shares (or other applicable securities) of the Fund as
of the Close of Trading (as defined below) on such eighth Trading Day. See “—Market Disruption Events.” 
 “Calculation Agent Agreement” shall mean the Calculation Agent Agreement dated as of May 29, 2012 between the Company and the Calculation Agent, as amended from time to time.

 “Calculation Agent” shall mean the Person that has entered into the Calculation Agent
Agreement with the Company providing for, among other things, the determination of the Ending Price and the Redemption Amount, which term shall, unless the context otherwise requires, include its successors under such Calculation Agent Agreement.
The initial Calculation Agent shall be Wells Fargo Securities, LLC. Pursuant to the Calculation Agent Agreement, the Company may appoint a different Calculation Agent from time to time after the initial issuance

  
 3 

 
of this Security without the consent of the Holder of this Security and without notifying the Holder of this Security. 
 Market Disruption Events 
 A “Market
Disruption Event” means, with respect to the Fund, any of the following events as determined by the Calculation Agent in its sole discretion: 
  

	 	(A)	 The occurrence or existence of a material suspension of or limitation imposed on trading by the Relevant Exchange or otherwise relating to the
shares (or other applicable securities) of the Fund or any Successor Fund (as defined below) on the Relevant Exchange at any time during the one-hour period that ends at the Close of Trading on such day, whether by reason of movements in price
exceeding limits permitted by such Relevant Exchange or otherwise. 

  

	 	(B)	 The occurrence or existence of a material suspension of or limitation imposed on trading by any Related Exchange or otherwise in futures or options
contracts relating to the shares (or other applicable securities) of the Fund or any Successor Fund on any Related Exchange at any time during the one-hour period that ends at the Close of Trading on that day, whether by reason of movements in price
exceeding limits permitted by the Related Exchange or otherwise. 

  

	 	(C)	 The occurrence or existence of any event, other than an early closure, that materially disrupts or impairs the ability of market participants in
general to effect transactions in, or obtain market values for, shares (or other applicable securities) of the Fund or any Successor Fund on the Relevant Exchange at any time during the one-hour period that ends at the Close of Trading on that day.

  

	 	(D)	 The occurrence or existence of any event, other than an early closure, that materially disrupts or impairs the ability of market participants in
general to effect transactions in, or obtain market values for, futures or options contracts relating to shares (or other applicable securities) of the Fund or any Successor Fund on any Related Exchange at any time during the one-hour period that
ends at the Close of Trading on that day. 

  

	 	(E)	 The closure of the Relevant Exchange or any Related Exchange with respect to the Fund or any Successor Fund prior to its Scheduled Closing Time
unless the earlier closing time is announced by the Relevant Exchange or Related Exchange, as applicable, at least one hour prior to the earlier of (1) the actual closing time for the regular trading session on such Relevant Exchange or Related
Exchange, as applicable, and (2) the submission deadline for orders to be entered into the Relevant Exchange or Related Exchange, as applicable, system for execution at the Close of Trading on that day. 

 

	 	(F)	 The Relevant Exchange or any Related Exchange with respect to the Fund or any Successor Fund fails to open for trading during its regular trading
session. 

  
 4 

 For purposes of determining whether a Market Disruption Event has occurred:

  

	 	(1)	 “Close of Trading” means the Scheduled Closing Time of the Relevant Exchange with respect to the Fund or any Successor Fund; and

  

	 	(2)	 the “Scheduled Closing Time” of the Relevant Exchange or any Related Exchange on any Trading Day for the Fund or any Successor Fund
means the scheduled weekday closing time of such Relevant Exchange or Related Exchange on such Trading Day, without regard to after hours or any other trading outside the regular trading session hours. 

Anti-dilution Adjustments Relating to the Fund; Alternate Calculation 

  Anti-dilution Adjustments 

The Calculation Agent will adjust the Adjustment Factor with respect to the Fund as specified below if any of the events
specified below occurs with respect to the Fund and the effective date or ex-dividend date, as applicable, for such event is after the Pricing Date and on or prior to the Calculation Day. 

The adjustments specified below do not cover all events that could affect the Fund. The Calculation Agent may, in its
sole discretion, make additional adjustments to any terms of this Security upon the occurrence of other events that affect or could potentially affect the market price of, or shareholder rights in, the Fund, with a view to offsetting, to the extent
practical, any such change, and preserving the relative investment risks of this Security. In addition, the Calculation Agent may, in its sole discretion, make adjustments or a series of adjustments that differ from those described herein if the
Calculation Agent determines that such adjustments do not properly reflect the economic consequences of the events specified herein or would not preserve the relative investment risks of this Security. All determinations made by the Calculation
Agent in making any adjustments to the terms of this Security, including adjustments that are in addition to, or that differ from, those described herein, will be made in good faith and a commercially reasonable manner, with the aim of ensuring an
equitable result. In determining whether to make any adjustment to the terms of this Security, the Calculation Agent may consider any adjustment made by the Options Clearing Corporation or any other equity derivatives clearing organization on
options contracts on the Fund. 
 For any event described below, the Calculation Agent will not be required to
adjust the Adjustment Factor unless the adjustment would result in a change to the Adjustment Factor then in effect of at least 0.10%. The Adjustment Factor resulting from any adjustment will be rounded up or down, as appropriate, to the nearest
one-hundred thousandth. 
  

	 	(A)	 Stock Splits and Reverse Stock Splits  

If a stock split or reverse stock split has occurred, then once such split has become effective, the Adjustment Factor
will be adjusted to equal the product of the prior Adjustment Factor and the number of securities which a holder of one share (or other applicable security) of the Fund before the effective date of such

  
 5 

 
stock split or reverse stock split would have owned or been entitled to receive immediately following the applicable effective date. 

 

	 	(B)	 Stock Dividends  

 If a dividend or distribution of shares (or other applicable securities) to which this Security is linked has been made by the Fund ratably to all holders of record of such shares (or other applicable
security), then the Adjustment Factor will be adjusted on the ex-dividend date to equal the prior Adjustment Factor plus the product of the prior Adjustment Factor and the number of shares (or other applicable security) of the Fund which a holder of
one share (or other applicable security) of the Fund before the ex-dividend date would have owned or been entitled to receive immediately following that date; provided, however, that no adjustment will be made for a distribution for which the number
of securities of the Fund paid or distributed is based on a fixed cash equivalent value. 
  

	 	(C)	 Extraordinary Dividends  

 If an Extraordinary Dividend (as defined below) has occurred, then the Adjustment Factor will be adjusted on the ex-dividend date to equal the product of the prior Adjustment Factor and a fraction, the
numerator of which is the Closing Price per share (or other applicable security) of the Fund on the Trading Day preceding the ex-dividend date, and the denominator of which is the amount by which the Closing Price per share (or other applicable
security) of the Fund on the Trading Day preceding the ex-dividend date exceeds the Extraordinary Dividend Amount (as defined below). 
 For purposes of determining whether an Extraordinary Dividend has occurred: 
  

	 	(1)	 “Extraordinary Dividend” means any cash dividend or distribution (or portion thereof) that the Calculation Agent determines, in its
sole discretion, is extraordinary or special; and 

  

	 	(2)	 “Extraordinary Dividend Amount” with respect to an Extraordinary Dividend for the securities of the Fund will equal the amount per
share (or other applicable security) of the Fund of the applicable cash dividend or distribution that is attributable to the Extraordinary Dividend, as determined by the Calculation Agent in its sole discretion. 

A distribution on the securities of the Fund described below under the section entitled “—Reorganization
Events” below that also constitutes an Extraordinary Dividend will only cause an adjustment pursuant to that “—Reorganization Events” section. 

  
 6 

	 	(D)	 Other Distributions  

 If the Fund declares or makes a distribution to all holders of the shares (or other applicable security) of the Fund of any non-cash assets, excluding dividends or distributions described under the
section entitled “—Stock Dividends” above, then the Calculation Agent may, in its sole discretion, make such adjustment (if any) to the Adjustment Factor as it deems appropriate in the circumstances. If the Calculation Agent
determines to make an adjustment pursuant to this paragraph, it will do so with a view to offsetting, to the extent practical, any change in the economic position of a holder of this Security that results solely from the applicable event.

  

	 	(E)	 Reorganization Events  

 If the Fund, or any Successor Fund, is subject to a merger, combination, consolidation or statutory exchange of securities with another exchange traded fund, and the Fund to which this Security is linked
is not the surviving entity (a “Reorganization Event”), then, on or after the date of such event, the Calculation Agent shall, in its sole discretion, make an adjustment to the Adjustment Factor or the method of determining the
Redemption Amount or any other terms of this Security as the Calculation Agent determines appropriate to account for the economic effect on this Security of such event, and determine the effective date of that adjustment. If the Calculation Agent
determines that no adjustment that it could make will produce a commercially reasonable result, then the Calculation Agent may deem such event a Liquidation Event (as defined below). 

  Liquidation Events 
 If the Fund is de-listed, liquidated or otherwise terminated (a “Liquidation Event”), and a successor or substitute exchange traded fund exists that the Calculation Agent determines, in
its sole discretion, to be comparable to the Fund, then, upon the Calculation Agent’s notification of that determination to the Trustee and the Company, any subsequent Fund Closing Price for the Fund will be determined by reference to the Fund
Closing Price of such successor or substitute exchange traded fund (such exchange traded fund being referred to herein as a “Successor Fund”), with such adjustments as the Calculation Agent determines are appropriate to account for
the economic effect of such substitution on the holder of this Security. 
 If the Fund undergoes a Liquidation
Event prior to, and such Liquidation Event is continuing on, the date that any Fund Closing Price of the Fund is to be determined and the Calculation Agent determines that no Successor Fund is available at such time, then the Calculation Agent will,
in its discretion, calculate the Fund Closing Price for the Fund on such date by a computation methodology that the Calculation Agent determines will as closely as reasonably possible replicate the Fund, provided that if the Calculation Agent
determines in its discretion that it is not practicable to replicate the Fund (including but not limited to the instance in which the sponsor of the index underlying the Fund discontinues publication of that index), then the Calculation Agent will
calculate the Fund Closing Price for the Fund in accordance with the formula last used to calculate such Fund Closing Price before such Liquidation Event, but 

  
 7 

 
using only those securities that were held by the Fund immediately prior to such Liquidation Event without any rebalancing or substitution of such securities following such Liquidation Event.

 If a Successor Fund is selected or the Calculation Agent calculates the Fund Closing Price as a substitute
for the Fund, such Successor Fund or Fund Closing Price will be used as a substitute for the Fund for all purposes, including for purposes of determining whether a Market Disruption Event exists. 

If any event is both a Reorganization Event and a Liquidation Event, such event will be treated as a Reorganization Event
for purposes of this Security unless the Calculation Agent makes the determination referenced in the last sentence of the section entitled “—Anti-dilution Adjustments—Reorganization Events” above. 

  Alternate Calculation 
 If at any time the method of calculating the Fund or a Successor Fund, or the Underlying Index, is changed in a material respect, or if the Fund or a Successor Fund is in any other way modified so that
the Fund does not, in the opinion of the Calculation Agent, fairly represent the price of the securities of the Fund or such Successor Fund had such changes or modifications not been made, then the Calculation Agent may, at the close of business in
New York City on the date that any Fund Closing Price is to be determined, make such calculations and adjustments as, in the good faith judgment of the Calculation Agent, may be necessary in order to arrive at a Closing Price of an exchange traded
fund comparable to the Fund or such Successor Fund, as the case may be, as if such changes or modifications had not been made, and calculate the Fund Closing Price and the Redemption Amount with reference to such adjusted Closing Price of the Fund
or such Successor Fund, as applicable. 
 Calculation Agent 

The Calculation Agent will determine the Redemption Amount and the Ending Price. In addition, the Calculation Agent will
(i) determine if adjustments are required to the Fund Closing Price and/or the Adjustment Factor under the circumstances described in this Security, (ii) if the Fund undergoes a Liquidation Event, select a Successor Fund or, if no
Successor Fund is available, determine the Fund Closing Price of the Fund, and (iii) determine whether a Market Disruption Event has occurred. 
 The Company covenants that, so long as this Security is Outstanding, there shall at all times be a Calculation Agent (which shall be a broker-dealer, bank or other financial institution) with respect to
this Security. 
 All determinations made by the Calculation Agent with respect to this Security will be at the
sole discretion of the Calculation Agent and, in the absence of manifest error, will be conclusive for all purposes and binding on the Company and the Holder of this Security. All percentages and other amounts resulting from any calculation with
respect to this Security will be rounded at the Calculation Agent’s discretion. 

  
 8 

 Tax Considerations 

The Company agrees, and by acceptance of a beneficial ownership interest in this Security each Holder of this Security
will be deemed to have agreed (in the absence of a statutory, regulatory, administrative or judicial ruling to the contrary), for United States federal income tax purposes to characterize and treat this Security as a pre-paid derivative contract in
respect of the Fund. 
 Redemption and Repayment 

This Security is not subject to redemption at the option of the Company or repayment at the option of the Holder hereof
prior to June 18, 2015. This Security is not entitled to any sinking fund. 
 Acceleration 

If an Event of Default, as defined in the Indenture, with respect to this Security shall occur and be continuing, the
Redemption Amount (calculated as set forth in the next sentence) of this Security may be declared due and payable in the manner and with the effect provided in the Indenture. The amount payable to the Holder hereof upon any acceleration permitted
under the Indenture will be equal to the Redemption Amount hereof calculated as provided herein as though the date of acceleration was the Calculation Day. 
  

 

Reference is hereby made to the further provisions of this Security set forth on the reverse hereof, which further
provisions shall for all purposes have the same effect as if set forth at this place. 
 Unless the certificate
of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature or its duly authorized agent under the Indenture referred to on the reverse hereof by manual signature, this Security shall not be
entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 
 [The remainder of this page has been
left intentionally blank] 

  
 9 

 IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal. 
 DATED:
                 
  

											
		 		 		 	WELLS FARGO & COMPANY
					
		 		 		 	By:	 	 
		 		 		 		 	     

		 		 		 		 	Its: 	 	 
					
	[SEAL]	 		 		 		 	
					
		 		 		 	 Attest:	 	 
		 		 		 		 	  

		 		 		 		 	Its:	 	 

  

					
	TRUSTEE’S CERTIFICATE OF AUTHENTICATION	 	
	This is one of the Securities of the series designated therein described in the within-mentioned Indenture.	 	
		
	 CITIBANK, N.A.,

      as Trustee
	 	
		
	By:	 	 
		 	Authorized Signature
			
		 	                   OR	 	
	
	 WELLS FARGO BANK, N.A.,
    as Authenticating Agent for the Trustee

		
	By:	 	 
		 	Authorized Signature

  
 10 

 [Reverse of Note] 
 WELLS FARGO & COMPANY 
 MEDIUM-TERM NOTE, SERIES K

 Due Nine Months or More From Date of Issue 
 Securities Linked to the SPDR® S&P 500® ETF Trust due June 18, 2015 

This Security is one of a duly authorized issue of securities of the Company (herein called the
“Securities”), issued and to be issued in one or more series under an indenture dated as of July 21, 1999, as amended or supplemented from time to time (herein called the “Indenture”), between the Company and
Citibank, N.A., as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the
respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is
one of the series of the Securities designated as Medium-Term Notes, Series K, of the Company, which series is limited to an aggregate principal amount or face amount, as applicable, of $25,000,000,000 or the equivalent thereof in one or more
foreign or composite currencies. The amount payable on the Securities of this series may be determined by reference to the performance of one or more equity-, commodity- or currency-based indices, exchange traded funds, securities, commodities,
currencies, statistical measures of economic or financial performance, or a basket comprised of two or more of the foregoing, or any other market measure or may bear interest at a fixed rate or a floating rate. The Securities of this series may
mature at different times, be redeemable at different times or not at all, be repayable at the option of the Holder at different times or not at all and be denominated in different currencies. 

Article Sixteen of the Indenture shall not apply to this Security. 

The Securities are issuable only in registered form without coupons and will be either (a) book-entry securities
represented by one or more Global Securities recorded in the book-entry system maintained by the Depositary or (b) certificated securities issued to and registered in the names of, the beneficial owners or their nominees. 

The Company agrees, to the extent permitted by law, not to voluntarily claim the benefits of any laws concerning usurious
rates of interest against a Holder of this Security. 
 Modification and Waivers 

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the
rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of
the Securities at the time Outstanding of all series to be affected, acting together as a class. The Indenture also contains 

  
 11 

 
provisions permitting the Holders of a majority in principal amount of the Securities of all series at the time Outstanding affected by certain provisions of the Indenture, acting together as a
class, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with those provisions of the Indenture. Certain past defaults under the Indenture and their consequences may be waived under the Indenture by the
Holders of a majority in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series. Solely for the purpose of determining whether any consent, waiver, notice or other action
or Act to be taken or given by the Holders of Securities pursuant to the Indenture has been given or taken by the Holders of Outstanding Securities in the requisite aggregate principal amount, the principal amount of this Security will be deemed to
be equal to the amount set forth on the face hereof as the “Face Amount” hereof. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of
any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security. 
 Defeasance 
 Section 403 and Article Fifteen of
the Indenture and the provisions of clause (ii) of Section 401(1)(B) of the Indenture, relating to defeasance at any time of (a) the entire indebtedness on this Security and (b) certain restrictive covenants and certain Events of
Default, upon compliance by the Company with certain conditions set forth therein, shall not apply to this Security. The remaining provisions of Section 401 of the Indenture shall apply to this Security. 

Authorized Denominations 
 This Security is issuable only in registered form without coupons in denominations of $1,000 or any amount in excess thereof which is an integral multiple of $1,000. 

Registration of Transfer 
 Upon due presentment for registration of transfer of this Security at the office or agency of the Company in the City of Minneapolis, Minnesota, a new Security or Securities of this series, with the same
terms as this Security, in authorized denominations for an equal aggregate Face Amount will be issued to the transferee in exchange herefor, as provided in the Indenture and subject to the limitations provided therein and to the limitations
described below, without charge except for any tax or other governmental charge imposed in connection therewith. 
 This Security is exchangeable for definitive Securities in registered form only if (x) the Depositary notifies the Company that it is unwilling or unable to continue as Depositary for this Security
or if at any time the Depositary ceases to be a clearing agency registered under the Securities Exchange Act of 1934, as amended, and a successor depositary is not appointed within 90 days after the Company receives such notice or becomes aware
of such ineligibility, (y) the Company in its sole discretion determines that this Security shall be exchangeable for definitive Securities in registered form and notifies the Trustee thereof or (z) an Event of Default with respect to the
Securities represented hereby has occurred and is continuing. If this Security is exchangeable pursuant to the preceding sentence, it shall be exchangeable for definitive Securities in registered

  
 12 

 
form, having the same date of issuance, Stated Maturity Date and other terms and of authorized denominations aggregating a like amount. 

This Security may not be transferred except as a whole by the Depositary to a nominee of the Depositary or by a nominee
of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such nominee to a successor of the Depositary or a nominee of such successor. Except as provided above, owners of beneficial interests in this
Global Security will not be entitled to receive physical delivery of Securities in definitive form and will not be considered the Holders hereof for any purpose under the Indenture. 

Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the
Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice
to the contrary. 
 Obligation of the Company Absolute 

No reference herein to the Indenture and no provision of this Security or the Indenture shall alter or impair the
obligation of the Company, which is absolute and unconditional, to pay the Redemption Amount at the times, place and rate, and in the coin or currency, herein prescribed, except as otherwise provided in this Security. 

No Personal Recourse 
 No recourse shall be had for the payment of the Redemption Amount, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture or any indenture supplemental
thereto, against any incorporator, stockholder, officer or director, as such, past, present or future, of the Company or any successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any
assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration for the issuance hereof, expressly waived and released. 
 Defined Terms 
 All terms used in this Security
which are defined in the Indenture shall have the meanings assigned to them in the Indenture unless otherwise defined in this Security. 

Governing Law 
 This Security shall be governed by and construed in accordance with the law of the State of New York, without regard to principles of conflicts of laws. 

  
 13 

 ABBREVIATIONS 

The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though
they were written out in full according to applicable laws or regulations: 
  

									
	TEN COM	 	-- 	  	as tenants in common	 		 	
					
	TEN ENT	 	-- 	  	as tenants by the entireties	 		 	
					
	JT TEN	 	-- 	  	as joint tenants with right of survivorship and not as tenants in common	 		 	

  

											
	UNIF GIFT MIN ACT	 	 -- 	 	 	 	Custodian	 	 	 	
		 		 	(Cust)	 		 	(Minor)                        	 	

  

					
	Under Uniform Gifts to Minors Act	 		 	
			
	  
	 		 	
	(State)	 		 	
	  
 Additional
abbreviations may also be used though not in the above list.
  
 FOR VALUE RECEIVED, the undersigned hereby sell(s) and transfer(s) unto
  

	 Please Insert Social Security or
	 		 	
	Other Identifying Number of Assignee	 	
			
	  
	 		 	
	
	  

	
	  

	
	  

 (PLEASE PRINT OR TYPE NAME
AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE) 

  
 14 

 the within Security of WELLS FARGO & COMPANY and does hereby irrevocably constitute
and appoint                          attorney to transfer the said Security on the books of the Company, with full power
of substitution in the premises. 
  

									
	 Dated:
	 	  
	 		 		 	
					
		 		 		 		 	  

					
		 		 		 		 	  

  
 NOTICE: The signature to this
assignment must correspond with the name as written upon the face of the within instrument in every particular, without alteration or enlargement or any change whatever. 

  
 15EX-10.1

 Exhibit 10.1 
 VOLTERRA SEMICONDUCTOR CORPORATION 
 STOCK UNIT GRANT NOTICE 
 (2004 EQUITY INCENTIVE PLAN) 
 Volterra
Semiconductor Corporation. (the “Company”), pursuant to its 2004 Equity Incentive Plan (the “Plan”), hereby awards to Participant a Stock Unit Award for the number of shares of the Company’s
Common Stock set forth below (the “Award”). The Award is subject to all of the terms and conditions as set forth herein and in the Plan and the Stock Unit Agreement, both of which are attached hereto and incorporated herein
in their entirety. Capitalized terms not otherwise defined herein shall have the meanings set forth in the Plan or the Stock Unit Agreement. In the event of any conflict between the terms in the Award and the Plan, the terms of the Plan shall
control. 
  

			
	Participant:	  	
	Date of Grant:	  	June 14, 2013
	Vesting Commencement Date:	  	June 14, 2013
	Number of Shares Subject to Award:	  	    ,000 shares of Company common stock
	Consideration:	  	Participant’s Services

  

	Vesting Schedule:	This Award shall vest and become exercisable as follows: 1/2 of the total shares shall vest on 6/14/2015 and 1/16 of the total number of shares shall vest at the end of
each subsequent 3-month period. 

 Notwithstanding the foregoing, vesting shall terminate on upon the
Participant’s termination of Continuous Service. 
 Additional Terms/Acknowledgements: The undersigned Participant acknowledges
receipt of, and understands and agrees to, this Stock Unit Grant Notice, the Stock Unit Agreement and the Plan. Participant further acknowledges that as of the Date of Grant, this Stock Unit Grant Notice, the Stock Unit Agreement, the Plan and the
Bonus Agreement set forth the entire understanding between Participant and the Company regarding the Award and supersedes all prior oral and written agreements on that subject. 
 VOLTERRA SEMICONDUCTOR CORPORATION         PARTICIPANT: 

 

									
	 By:
	 	  
	 		 	  

		 	Signature	 		 		 	Signature
					
	 Title:
	 		 		 	Date:	 	
					
	 Date:
	 		 		 		 	

  

	ATTACHMENTS:	Stock Unit Agreement, 2004 Equity Incentive Plan 

  
 1 

 VOLTERRA SEMICONDUCTOR CORPORATION

 2004 EQUITY INCENTIVE PLAN 

STOCK UNIT AGREEMENT 

Pursuant to the Stock Unit Grant Notice (“Grant Notice”) and this Stock Unit Agreement and in consideration of
your services, Volterra Semiconductor Corporation (the “Company”) has awarded you a Stock Unit Award (the “Award”) under its 2004 Equity Incentive Plan (the “Plan”). Your Award
is granted to you effective as of the Date of Grant set forth in the Grant Notice for this Award. This Stock Unit Award Agreement shall be deemed to be agreed to by the Company and you upon the signing by you of the Stock Unit Grant Notice to which
it is attached. Defined terms not explicitly defined in this Stock Unit Agreement shall have the same meanings given to them in the Plan. In the event of any conflict between the terms in this Stock Unit Agreement and the Plan, the terms of the Plan
shall control. The details of your Award, in addition to those set forth in the Grant Notice and the Plan, are as follows. 

1. GRANT OF THE AWARD. This Award represents the right to be issued on
a future date the number of shares of the Company’s Common Stock as indicated in the Grant Notice. As of the Date of Grant, the Company will credit to a bookkeeping account maintained by the Company for your benefit (the
“Account”) the number of shares of Common Stock subject to the Award. This Award was granted in consideration of your services to the Company. Except as otherwise provided herein, you will not be required to make any payment
to the Company (other than past and future services to the Company) with respect to your receipt of the Award, the vesting of the shares or the delivery of the underlying Common Stock. 

2. VESTING. Subject to the limitations contained herein, your Award will vest, if at all, in accordance with the
vesting schedule provided in the Grant Notice, provided that vesting will cease upon the termination of your Continuous Service. Upon such termination of your Continuous Service, the shares credited to the Account that were not vested on the date of
such termination will be forfeited at no cost to the Company and you will have no further right, title or interest in or to such underlying shares of Common Stock. 
 3. NUMBER OF SHARES. 
 (a)
The number of shares subject to your Award may be adjusted from time to time for Capitalization Adjustments, as provided in the Plan. 
 (b) Any shares, cash or other property that becomes subject to the Award pursuant to this Section 3 and Section 7, if any, shall be subject, in a manner determined by the Board, to the
same forfeiture restrictions, restrictions on transferability, and time and manner of delivery as applicable to the other shares covered by your Award. 
 (c) Notwithstanding the provisions of this Section 3, no fractional shares or rights for fractional shares of Common Stock shall be created pursuant to this Section 3. The Board shall, in
its discretion, determine an equivalent benefit for any fractional shares or fractional shares that might be created by the adjustments referred to in this Section 3. 

  
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 4. SECURITIES LAW COMPLIANCE. You may
not be issued any shares under your Award unless either (i) the shares are registered under the Securities Act; or (ii) the Company has determined that such issuance would be exempt from the registration requirements of the Securities Act.
Your Award also must comply with other applicable laws and regulations governing the Award, and you will not receive such shares if the Company determines that such receipt would not be in material compliance with such laws and regulations.

 5. LIMITATIONS ON TRANSFER. Your Award is not transferable, except by
will or by the laws of descent and distribution. In addition to any other limitation on transfer created by applicable securities laws, you agree not to assign, hypothecate, donate, encumber or otherwise dispose of any interest in any of the shares
of Common Stock subject to the Award until the shares are issued to you in accordance with Section 6 of this Agreement. After the shares have been issued to you, you are free to assign, hypothecate, donate, encumber or otherwise dispose of any
interest in such shares provided that any such actions are in compliance with the provisions herein and applicable securities laws. Notwithstanding the foregoing, by delivering written notice to the Company, in a form satisfactory to the Company,
you may designate a third party who, in the event of your death, shall thereafter be entitled to receive any distribution of Common Stock to which you were entitled at the time of your death pursuant to this Agreement. 

6. DATE OF ISSUANCE. 

(a) The Company will deliver to you a number of shares of the Company’s Common Stock equal to the number of vested shares
subject to your Award, including any additional shares received pursuant to Section 3 above that relate to those vested shares on the applicable vesting date(s). However, if a scheduled delivery date falls on a date that is not a business day,
such delivery date shall instead fall on the next following business day. 
 (b) Notwithstanding the foregoing, in the
event that (i) you are subject to the Company’s policy permitting officers and directors to sell shares only during certain “window” periods, in effect from time to time or you are otherwise prohibited from selling shares of the
Company’s Common Stock in the public market and any shares covered by your Award are scheduled to be delivered on a day (the “Original Distribution Date”) that does not occur during an open “window period”
applicable to you, as determined by the Company in accordance with such policy, or does not occur on a date when you are otherwise permitted to sell shares of the Company’s common stock on the open market, and (ii) the Company elects not
to satisfy its tax withholding obligations by withholding shares from your distribution, then such shares shall not be delivered on such Original Distribution Date and shall instead be delivered on the first business day of the next occurring open
“window period” applicable to you pursuant to such policy (regardless of whether you are still providing continuous services at such time) or the next business day when you are not prohibited from selling shares of the Company’s
Common Stock in the open market, but in no event later than the fifteenth (15th) day of the third calendar month of the calendar year following the calendar year in which the Original Distribution Date occurs. The form of such delivery
(e.g., a stock certificate or electronic entry evidencing such shares) shall be determined by the Company. 
 7.
DIVIDENDS. You shall be entitled to receive payments equal to any cash dividends and other distributions paid with respect to a corresponding number of shares covered 

  
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by your Award, provided that if any such dividends or distributions are paid in shares, the Fair Market Value of such shares shall be converted into additional shares covered by the Award, and
further provided that such additional shares shall be subject to the same forfeiture restrictions and restrictions on transferability as apply to the shares subject to the Award with respect to which they relate. 

8. RESTRICTIVE LEGENDS. The shares issued under your Award shall be endorsed with appropriate
legends determined by the Company. 
 9. AWARD NOT A SERVICE
CONTRACT. 
 (a) Your Continuous Service with the Company or an Affiliate is not for any specified term
and may be terminated by you or by the Company or an Affiliate at any time, for any reason, with or without cause and with or without notice. Nothing in this Stock Unit Agreement (including, but not limited to, the vesting of your Award
pursuant to the schedule set forth in Section 2 herein or the issuance of the shares subject to your Award), the Plan or any covenant of good faith and fair dealing that may be found implicit in this Stock Unit Agreement or the Plan
shall: (i) confer upon you any right to continue in the employ of, or affiliation with, the Company or an Affiliate; (ii) constitute any promise or commitment by the Company or an Affiliate regarding the fact or nature of future
positions, future work assignments, future compensation or any other term or condition of employment or affiliation; (iii) confer any right or benefit under this Stock Unit Agreement or the Plan unless such right or benefit has specifically
accrued under the terms of this Agreement or Plan; or (iv) deprive the Company of the right to terminate you at will and without regard to any future vesting opportunity that you may have. 

(b) By accepting this Award, you acknowledge and agree that the right to continue vesting in the Award pursuant to the schedule
set forth in Section 2 is earned only by continuing as an employee, director or consultant at the will of the Company (not through the act of being hired, being granted this Award or any other award or benefit) and that the Company has the
right to reorganize, sell, spin-out or otherwise restructure one or more of its businesses or Affiliates at any time or from time to time, as it deems appropriate (a “reorganization”). You further acknowledge and agree that such a
reorganization could result in the termination of your Continuous Service, or the termination of Affiliate status of your employer and the loss of benefits available to you under this Stock Unit Agreement, including but not limited to, the
termination of the right to continue vesting in the Award. You further acknowledge and agree that this Stock Unit Agreement, the Plan, the transactions contemplated hereunder and the vesting schedule set forth herein or any covenant of good faith
and fair dealing that may be found implicit in any of them do not constitute an express or implied promise of continued engagement as an employee or consultant for the term of this Agreement, for any period, or at all, and shall not interfere in any
way with your right or the Company’s right to terminate your Continuous Service at any time, with or without cause and with or without notice. 
 10. WITHHOLDING OBLIGATIONS. 
 (a) On
or before the time you receive a distribution of the shares subject to your Award, or at any time thereafter as requested by the Company, you hereby authorize any 

  
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required withholding from the Common Stock issuable to you and/or otherwise agree to make adequate provision in cash for any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Company or any Affiliate which arise in connection with your Award (the “Withholding Taxes”). Additionally, the Company may, in its sole discretion, satisfy all or any portion of the Withholding
Taxes obligation relating to your Award by any of the following means or by a combination of such means: (i) withholding from any compensation otherwise payable to you by the Company; (ii) causing you to tender a cash payment; or
(iii) withholding shares of Common Stock from the shares of Common Stock issued or otherwise issuable to you in connection with the Award with a Fair Market Value (measured as of the date shares of Common Stock are issued to pursuant to
Section 6) equal to the amount of such Withholding Taxes; provided, however, that the number of such shares of Common Stock so withheld shall not exceed the amount necessary to satisfy the Company’s required tax withholding obligations
using the minimum statutory withholding rates for federal, state, local and foreign tax purposes, including payroll taxes, that are applicable to supplemental taxable income. 
 (b) Unless the tax withholding obligations of the Company and/or any Affiliate are satisfied, the Company shall have no obligation to deliver to you any Common Stock. 

(c) In the event the Company’s obligation to withhold arises prior to the delivery to you of Common Stock or it is determined
after the delivery of Common Stock to you that the amount of the Company’s withholding obligation was greater than the amount withheld by the Company, you agree to indemnify and hold the Company harmless from any failure by the Company to
withhold the proper amount. 
 11. UNSECURED OBLIGATION. Your Award is unfunded, and as a
holder of a vested Award, you shall be considered an unsecured creditor of the Company with respect to the Company’s obligation, if any, to issue shares pursuant to this Agreement. You shall not have voting or any other rights as a stockholder
of the Company with respect to the shares to be issued pursuant to this Agreement until such shares are issued to you pursuant to Section 6 of this Agreement. Upon such issuance, you will obtain full voting and other rights as a stockholder of
the Company. Nothing contained in this Agreement, and no action taken pursuant to its provisions, shall create or be construed to create a trust of any kind or a fiduciary relationship between you and the Company or any other person. 

12. OTHER DOCUMENTS. You hereby acknowledge receipt or the right to receive a document providing the
information required by Rule 428(b)(1) promulgated under the Securities Act, which includes the Plan prospectus. In addition, you acknowledge receipt of the Company’s policy permitting officers and directors to sell shares only during certain
“window” periods and the Company’s insider trading policy, in effect from time to time. 
 13.
NOTICES. Any notices provided for in your Award or the Plan shall be given in writing and shall be deemed effectively given upon receipt or, in the case of notices delivered by the Company to you, five (5) days after deposit
in the United States mail, postage prepaid, addressed to you at the last address you provided to the Company. Notwithstanding the foregoing, the Company may, in its sole discretion, decide to deliver any documents related to

  
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participation in the Plan and this Award by electronic means or to request your consent to participate in the Plan by electronic means. You hereby consents to receive such documents by electronic
delivery and, if requested, to agree to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company. 

14. MISCELLANEOUS. 
 (a) The rights and obligations of the Company under your Award shall be transferable to any one or more persons or entities, and all covenants and agreements hereunder shall inure to the benefit
of, and be enforceable by the Company’s successors and assigns. Your rights and obligations under your Award may only be assigned with the prior written consent of the Company. 

(b) You agree upon request to execute any further documents or instruments necessary or desirable in the sole determination of the
Company to carry out the purposes or intent of your Award. 
 (c) You acknowledge and agree that you have reviewed your
Award in its entirety, have had an opportunity to obtain the advice of counsel prior to executing and accepting your Award, and fully understand all provisions of your Award. 
 (d) This Agreement shall be subject to all applicable laws, rules, and regulations, and to such approvals by any governmental agencies or national securities exchanges as may be required.

 (e) All obligations of the Company under the Plan and this Agreement shall be binding on any successor to the Company,
whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business and/or assets of the Company. 

15. GOVERNING PLAN DOCUMENT. Your Award is subject to all the provisions of the Plan,
the provisions of which are hereby made a part of your Award, and is further subject to all interpretations, amendments, rules and regulations which may from time to time be promulgated and adopted pursuant to the Plan. Except as expressly provided
herein, in the event of any conflict between the provisions of your Award and those of the Plan, the provisions of the Plan shall control. 
 16. SEVERABILITY. If all or any part of this Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity shall
not invalidate any portion of this Agreement or the Plan not declared to be unlawful or invalid. Any Section of this Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will
give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid. 

17. EFFECT ON OTHER EMPLOYEE BENEFIT
PLANS. The value of the Award subject to this Agreement shall not be included as compensation, earnings, salaries, or other similar terms used when calculating the Employee’s benefits under any employee benefit plan sponsored

  
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by the Company or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any
Affiliate’s employee benefit plans. 
 18. CHOICE OF LAW. The
interpretation, performance and enforcement of this Agreement will be governed by the law of the state of California without regard to such state’s conflicts of laws rules. 

19. AMENDMENT. This Agreement may not be modified, amended or terminated except by an instrument in writing, signed
by you and by a duly authorized representative of the Company. Notwithstanding the foregoing, this Agreement may be amended solely by the Board by a writing which specifically states that it is amending this Agreement, so long as a copy of such
amendment is delivered to you, and provided that no such amendment adversely affecting your rights hereunder may be made without your written consent. Without limiting the foregoing, the Board reserves the right to change, by written notice to you,
the provisions of this Agreement in any way it may deem necessary or advisable to carry out the purpose of the grant as a result of any change in applicable laws or regulations or any future law, regulation, ruling, or judicial decision, provided
that any such change shall be applicable only to rights relating to that portion of the Award which is then subject to restrictions as provided herein. 

  
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