Document:

Exhibit

EXHIBIT 10.1

Re:    Offer of Vice President, Controller / Chief Accounting Officer Position
Dear Ed,
Per our conversation, I would like to formally offer you the position of Vice President, Controller and Chief Accounting Officer, for A. M. Castle & Co.  In this position, you will report directly to me and serve as a member of my finance leadership team. As discussed, your start date will be mutually agreed upon. Below is a summary of the terms of this offer, all of which are contingent on (a) you passing a standard pre-employment drug screening and background check, and (b) approval by the Board of Directors:
Base Salary
Your base salary will be $215,000.00 less applicable withholding taxes and deductions. Base salary will be subject to annual review.  I will meet with you in the next several weeks to establish your performance goals for the remainder of 2017.
Shared Services Incentive Plan
You will be eligible to participate in the Company's 2018 Shared Services Incentive Plan, which provides eligible employees an opportunity to earn and receive an annual incentive payment based on individual performance and the achievement of Company performance targets.  Under the plan, and subject to yearly approval by the Human Resources Committee of the Board of Directors, you will have the opportunity to earn an additional forty percent (40%) of your base salary at target performance
Nothing herein constitutes a promise of payment. Your actual payouts will depend on date of eligibility and achievement of established performance objectives, determined annually by the HR committee, and will be governed by the terms and conditions of the applicable plans.  Eligibility for participation in the incentive plans and individual award levels are subject to the discretion of the HR Committee and may vary from year-to-year.
Long-Term Compensation Plan (LTCP)
The future structure of the Long-Term Compensation Plan (LTCP) is currently being revised by the HR Committee.  As such, the eligibility of all plan participants, including yourself, may change.  The Company expects to have an update on this matter in the near future and l will keep you updated on your status.
Employee Benefits
You will be eligible to participate in our comprehensive benefits package which includes medical, dental, vision and other group benefits, effective on the 1st day of employment.  If you choose to participate in our benefit plans, you must elect benefits within 31 calendar days of your start date or you will forfeit coverage until the next Open Enrollment period.  You will be sent enrollment instructions to your personal email account within your first week of employment.
You will accrue 20 days of Paid Time Off (PTO) each anniversary year with the Company.  Your PTO will begin to accrue on your first paycheck in accordance with the Company's PTO Policy.  You are permitted to incur a negative PTO balance of up to 24 hours during your first three months if you have not accrued 

EX-1-

substantial hours in your PTO bank.  However, your future earned and accrued PTO will be applied towards any such negative balance.
In addition, you will be eligible to participate in the Company's 401(k) Savings and Retirement Plan on the 1st of the month following 30 days of employment. A. M. Castle & Co. will make a matching contribution to your 401(k) plan on your behalf, each payroll period, in an amount equal to 100% of the first 3% of your contributions and an additional 50% on the next 2% of your contributions (up to a maximum match of 4%). Employer contributions will begin upon your initial eligibility to the Plan.
Each year, the CEO will also have the discretion to approve a Company contribution, on top of the employer match, of up to 4% of base salary. This contribution amount will be determined at the end of the plan year and funded shortly thereafter.
You will also be eligible to participate in the company's non-qualified Supplemental 401(k) Savings & Retirement Plan (SERP) which is designed to be a "spillover" plan that coordinates deferral elections with the contribution rate chosen in the qualified 401(k) Plan.  If you participate in SERP, any amounts contributed (including company match) in the qualified 401(k) Plan which exceed the IRS annual maximum contribution limit will be transferred into the SERP Plan.  Alyssa Rogge, Benefits Manager, will contact you regarding enrollment.  All benefits outlined above are subject to the terms of their respective plan documents which are subject to change.
A copy of the Benefit Highlights is included with this letter to provide you a full overview of the Castle benefit plans.  You may request a copy of any governing plan documents or policies at any time by contacting Human Resources.
Automobile Benefit
This position is eligible for a company car stipend benefit.  You will receive $1,000 gross per month which will be taxed as supplemental pay.  Participation in this program is subject to the terms and conditions of the Company's car policy and can be changed or terminated at any time.
Cell phone reimbursement
Based on your position you will be eligible for a monthly cell phone reimbursement of $100.00.
Severance / Change in Control
As a senior leader of A.M. Castle & Co. you will be eligible to enter into change-in-control and involuntary termination (severance) agreements with the Company consistent with those offered to similarly situated employees.  These agreements provide severance benefits to you in exchange for your agreement to comply with certain non-compete and other covenants.  The terms and conditions of those arrangements will be governed by the Severance Agreement and Change in Control Agreement to be entered into with the Company.  Additional details will be communicated once finalized.
Employment At-Will
This letter does not constitute a contract of employment for any specific period of time, but will create an employment at-will relationship that may be terminated at any time by you or A.M. Castle & Co., with or without cause and with or without advance notice.  This letter constitutes the entire agreement between you and the Company with respect to the subject matter hereof and supersede any and all prior or contemporaneous oral or written representations, understandings, agreements or communications between you and the Company concerning those subject matters.

EX-2-

All of the financial terms and other benefits outlined above are subject to the terms of the respective plan documents.  Please refer to the plan documents for eligibility and terms of coverage.
Conclusion
Please let me know if you have any questions regarding the information provided in the letter or any other aspect of your employment at Castle.  I look forward to your acceptance of this position.
	
			
	Acceptance by Candidate:
	 
	 

	 
	 
	 

	/s/ Edward M. Quinn
	 
	12/4/17

	Ed Quinn
	 
	Date

	 
	 
	 

	 
	 
	 

	Acceptance by Company:
	 
	 

	 
	 
	 

	/s/ Patrick R. Anderson
	 
	12/4/17

	Pat Anderson
	 
	 

	Executive Vice President & Chief Financial Officer

	A. M. Castle & Co.

EX-3-Form of Medium-Term Notes, Series K

 Exhibit 4.1 

[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. 95000E3X5 
	 FACE AMOUNT: $                

 REGISTERED NO.      

WELLS FARGO & COMPANY 

MEDIUM-TERM NOTE, SERIES K 

Due Nine Months or More From Date of Issue 

Principal at Risk Securities Linked to the 

Energy Select Sector SPDR® Fund due December 7, 2020 

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, unless this Security is automatically
called as provided below under “Automatic Call.” The “Initial Stated Maturity Date” shall be December 7, 2020. If the Final Calculation Day (as defined below) is not postponed, the Initial Stated Maturity Date will be
the “Stated Maturity Date.” If the Final Calculation Day is postponed, the “Stated Maturity Date” shall be the later of (i) the Initial Stated Maturity Date and (ii) the third Business Day (as defined
below) after the Final Calculation Day as postponed. 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.” 

 Automatic Call 

If the Fund Closing Price (as defined below) of the Fund (as defined below) on any of the Call Dates (as defined in the table
below) (including the Final Calculation Day) is greater than or equal to the Starting Price (as defined below), this Security will be automatically called by the Company, and on the related Call Settlement Date (as defined below) the Holder hereof
will receive the Face Amount of this Security plus the Call Premium (as defined in the table below) applicable to the relevant Call Date (together, the “Call Price”). Unless the Company defaults in the payment of the Call Price, this
Security will cease to be outstanding on such Call Settlement Date, and the Holder hereof will have no further rights under this Security after such Call Settlement Date. The Holder hereof will not receive any notice from the Company in the event
this Security is automatically called pursuant to the terms hereof. 
 The Call Dates and the related Call Premiums are as
follows: 
  

			
	 Call Date
	  	 Call Premium

		
	December 7, 2018	  	8.00% of the Face Amount of this Security
	December 9, 2019	  	16.00% of the Face Amount of this Security
	November 30, 2020	  	24.00% of the Face Amount of this Security

 The Call Dates are subject to postponement for non-Trading Days and
the occurrence of a Market Disruption Event. See the definition of “Calculation Days” below. 
 The “Call
Settlement Date” for a Call Date shall be five Business Days after such Call Date, as such Call Date may be postponed as provided herein; provided that the Call Settlement Date for the last Call Date shall be the Stated Maturity Date. 

Payment of the Call Price, if any, will be made in such coin or currency of the United States of America as at the time is
legal tender for payment of public and private debts. 
 Determination of Redemption Amount and Certain Definitions 

If this Security is not automatically called as provided above under “Automatic Call,” the “Redemption
Amount” of this Security will equal: 
  

	 	•	 	 if the Ending Price is 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: 

 

																											
		 		 		 		 		 		 		 		 		 		 		 		 		 	
		 		 		 		 	 	 	Face Amount	 	  x        	 	Threshold Price – Ending Price	 	 	 		 		 		 		 	
		 		 		 		 	 	 	 	 	Starting Price	 	 	 		 		 		 		 	

 All calculations with respect to the Redemption Amount or Call Price, as applicable, will be rounded to the
nearest one hundred-thousandth, with five one-millionths rounded upward (e.g., 

  
 2 

 
0.000005 would be rounded to 0.00001); and the Redemption Amount or Call Price, as applicable, will be rounded to the nearest cent, with one-half cent
rounded upward. 
 The “Fund” shall mean the Energy Select Sector SPDR® Fund. 
 The “Pricing Date” shall mean
November 30, 2017. 
 The “Starting Price” is $69.10, 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 Final 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 applicable to the Fund 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. 
 The “Threshold Price” is $62.19, which is equal to 90% of the Starting Price.

 The “Underlying Index” shall mean the Energy Select Sector 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” means a day, as determined by the Calculation Agent, on which the Relevant Stock Exchange (as defined below) and each Related Futures or Options 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 Stock 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. 

  
 3 

 The “Related Futures or Options 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 Days” shall mean each of the Call Dates (including the Final Calculation Day). If any
Calculation Day is not a Trading Day, such Calculation Day will be postponed to the next succeeding Trading Day. A Calculation Day is also subject to postponement due to the occurrence of a Market Disruption Event (as defined below). If a Market
Disruption Event occurs or is continuing with respect to the Fund on a 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; however, 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 to be the Calculation Day. If a Calculation Day has been postponed eight Trading
Days after the originally scheduled Calculation Day and a Market Disruption Event occurs or is continuing 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.” 

The “Final Calculation Day” is November 30, 2020, subject to postponement as provided herein. 

“Calculation Agent Agreement” shall mean the Calculation Agent Agreement dated as of March 18, 2015
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 whether this Security will be automatically called on any of the Call Dates, the Call Price, if any, 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 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 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 Stock
Exchange or otherwise relating to the shares (or other applicable securities) of the Fund or any Successor Fund (as defined below) on the Relevant Stock 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 Stock Exchange or otherwise. 

  
 4 

	 	(B)	 The occurrence or existence of a material suspension of or limitation imposed on trading by any Related
Futures or Options 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 Futures or Options 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 Futures or Options 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 Stock 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 Futures or Options
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 Stock Exchange or any Related Futures or Options 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 Stock Exchange or Related Futures or Options 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 Stock Exchange or Related Futures or Options Exchange, as applicable, and (2) the submission deadline for orders to be entered into the Relevant Stock Exchange or Related
Futures or Options Exchange, as applicable, system for execution at the Close of Trading on that day. 

  

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

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

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

  

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

  
 5 

 Anti-dilution Adjustments Relating to the Fund; Alternate Calculation 

Anti-dilution Adjustments 

The Calculation Agent will adjust the Adjustment Factor 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 Final 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 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 

  
 6 

 
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. 

 

	 	(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. 

  
 7 

	 	(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, whether this Security is automatically called on any of the Call Dates 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 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 

  
 8 

 
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 and determine whether this Security will be automatically called with reference to such adjusted Closing Price of the Fund or such Successor Fund, as applicable. 

Calculation Agent 

The Calculation Agent will determine whether this Security will be automatically called on any of the Call Dates, the Call
Price, if any, 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 or non-Trading Day 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. 

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 treat this Security as a prepaid derivative contract that is an “open
transaction.” 
 Redemption and Repayment 

This Security is not subject to repayment at the option of the Holder hereof prior to December 7, 2020. Except as set
forth above under “Automatic Call,” this Security is not 

  
 9 

 
subject to redemption prior to December 7, 2020. 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 Final Calculation Day; provided that if the Fund Closing Price of the Fund on the date of acceleration is equal to or greater than the Starting Price, the amount payable on this Security will be calculated using a Call Premium that is prorated
to the date of acceleration. 
  
  

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] 

  
 10 

 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

  
 11 

 [Reverse of Note] 

WELLS FARGO & COMPANY 

MEDIUM-TERM NOTE, SERIES K 

Due Nine Months or More From Date of Issue 

Principal at Risk Securities Linked to the 

Energy Select Sector SPDR® Fund due December 7, 2020 

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 

  
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time Outstanding of all series to be affected, acting together as a class. The Indenture also contains 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 

  
 13 

 
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 or the Call Price, as applicable, 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 the Call Price, as applicable, 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. 

  
 14 

 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)

  
 15 

 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. 

  
 16

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