Document:

Form of Warrant

 Exhibit 4.1 
 MANNKIND CORPORATION 
 WARRANT TO PURCHASE COMMON STOCK 

Warrant No.: 2012-[—] 
 Number of Shares of Common Stock: 
 Date of Issuance: February 8, 2012 (“Issuance
Date”) 
 Expiration Date: February 8, 2016 (“Expiration Date”) 

MannKind Corporation, a Delaware corporation (the “Company”), certifies that, for good and valuable consideration, the receipt and
sufficiency of which are acknowledged,                    , the registered holder hereof or its permitted assigns (the
“Holder”), is entitled, subject to the terms set forth below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to
Purchase Common Stock issued in exchange, transfer or replacement hereof, the “Warrant”), at any time or times on or after the date hereof (the “Exercisability Date”), but not after 5:30 p.m., New York Time, on the
Expiration Date,                    
(                    ) fully paid and nonassessable shares of Common Stock (as defined below) (the “Warrant Shares”).
Except as otherwise defined herein, capitalized terms in this Warrant shall have the meanings set forth in Section 15. 

1. EXERCISE OF WARRANT. 
 (a) Mechanics of Exercise. Subject to the terms and conditions hereof (including, without limitation, the limitations set forth in Section 1(d)), this Warrant may be exercised by the Holder on
any day on or after the Exercisability Date, in whole or in part (but not as to fractional shares), by (i) delivery of a written notice, in the form attached hereto as Exhibit A (the “Exercise Notice”), of the
Holder’s election to exercise this Warrant and (ii) if both (A) the Holder is not electing a Cashless Exercise (as defined below) pursuant to Section 1(c) of this Warrant and (B) a registration statement registering the
issuance of the Warrant Shares under the Securities Act of 1933, as amended (the “Securities Act”), is effective and available for the issuance of the Warrant Shares, or an exemption from registration under the Securities Act is
available for the issuance of the Warrant Shares, payment to the Company of an amount equal to the applicable Exercise Price multiplied by the number of Warrant Shares as to which this Warrant is being exercised (the “Aggregate Exercise
Price”) in cash or wire transfer of immediately available funds (a “Cash Exercise”). The Holder shall not be required to surrender this Warrant in order to effect an exercise hereunder, provided that in the event of
an exercise of this Warrant for all Warrant Shares then issuable hereunder, this Warrant is surrendered to the Company by the second (2nd) Trading Day following the date on which the Company has received each of the Exercise Notice and, if this
Warrant is being exercised pursuant to a Cash Exercise, the Aggregate Exercise Price (the “Exercise Delivery Documents”). On or before the first (1st) Trading Day following the date on which the Company has received the
Exercise Delivery Documents, the Company shall transmit by email or facsimile an acknowledgment of confirmation of receipt of the Exercise Delivery Documents to the Holder and the Company’s transfer agent for the Common Stock and Warrants (the
“Transfer Agent”). The Company shall deliver any objection to the Exercise Delivery Documents on or before the first (1st) Trading Day following the date on which the Company has received all of the Exercise Delivery

 
Documents. In the event of any discrepancy or dispute, the records of the Company shall be controlling and determinative in the absence of manifest error. On or before the third
(3rd) Trading Day following the date on which the Company has received the Exercise Notice duly completed and executed by the Holder, and in the case of a Cash Exercise, the Aggregate Exercise Price (the “Share Delivery Date”),
the Company shall, upon the request of the Holder, credit such aggregate number of shares of Common Stock to which the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with The Depository Trust
Company (“DTC”) through its Deposit Withdrawal Agent Commission system, or if the Transfer Agent is not participating in the Fast Automated Securities Transfer Program (the “FAST Program”) or if the certificates are
required to bear a legend regarding restriction on transferability, issue and dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in the Company’s share register in the name of the Holder
or its designee, for the number of shares of Common Stock to which the Holder is entitled pursuant to such exercise. Upon delivery of the Exercise Delivery Documents and surrender of this Warrant, the Holder shall be deemed for all corporate
purposes to have become the holder of record of the Warrant Shares with respect to which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited to the Holder’s DTC account or the date of delivery of the
certificates evidencing such Warrant Shares, as the case may be. If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is
greater than the number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as practicable and in no event later than five (5) Trading Days after any exercise and at its own expense, issue a new Warrant (in
accordance with Section 7(e)) representing the right to purchase the number of Warrant Shares purchasable immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised.
The Company shall pay any and all taxes that may be payable with respect to the issuance and delivery of Warrant Shares upon exercise of this Warrant; provided, however, that the Company shall not be required to pay any tax which may
be payable based on the income of the Holder or in respect of any transfer involved in the registration of any certificates for Warrant Shares or Warrants in a name other than that of the Holder or an affiliate thereof. The Holder shall be
responsible for all other tax liability that may arise as a result of holding or transferring this Warrant or receiving Warrant Shares upon exercise hereof. 
 In addition to any other rights available to the Holder, if the Company fails to cause the Transfer Agent to transmit to the Holder a certificate or the certificates representing the Warrant Shares or to
credit the Holder’s balance account with DTC for such number of Warrant Shares to which the Holder is entitled upon the Holder’s exercise pursuant to an exercise on or before the Share Delivery Date, and if after such date the Holder
purchases (in an open market transaction or otherwise) or the Holder’s brokerage firm otherwise purchases, shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the Holder anticipated receiving
upon such exercise (a “Buy-In”), then the Company shall within five (5) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the
Holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which point the Company’s obligation to deliver such certificate (and to issue
such Warrant Shares or credit such Holder’s balance account 

  
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with DTC) shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or certificates representing such Warrant Shares or credit such Holder’s balance
account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common Stock, times (B) the Weighted Average Price of a share of Common Stock on the
date of exercise. 
 (b) Exercise Price. For purposes of this Warrant, “Exercise Price”
means $2.40 per share of Common Stock, subject to adjustment as provided herein. 
 (c) Cashless Exercise.
Notwithstanding anything contained herein to the contrary, if a registration statement registering the issuance of the Warrant Shares under the Securities Act is not effective or available for the issuance of the Warrant Shares or an exemption from
registration under the Securities Act is not available for the issuance of the Warrant Shares, the Holder may, in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment otherwise contemplated to be
made to the Company upon such exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number” of shares of Common Stock determined according to the following formula (a “Cashless
Exercise”): 
  

					
	Net Number =	 	(A x B) - (A x C)	  	  
		 	B	  	

  

					
	For purposes of the foregoing formula:
		
	A=	 	the total number of shares with respect to which this Warrant is then being exercised.
		
	B=	 	the Weighted Average Price of the shares of Common Stock (as reported by Bloomberg) on the date immediately preceding the date of the Exercise Notice.
		
	C=	 	the Exercise Price then in effect for the applicable Warrant Shares at the time of such exercise.

 (d) Limitations on Exercises. (1) The Company shall not effect the exercise of
this Warrant, and the Holder shall not have the right to exercise this Warrant, to the extent that after giving effect to such exercise, such Holder (together with such Holder’s affiliates and any other Persons acting as a group together) would
beneficially own in excess of 4.99% (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such exercise. For purposes of the foregoing sentence, the aggregate number of shares of
Common Stock beneficially owned by such Person and its affiliates shall include the number of shares of Common Stock issuable upon exercise of this Warrant with respect to which the determination of such sentence is being made, but shall exclude
shares of Common Stock which would be issuable upon (i) exercise of the remaining, unexercised portion of this Warrant beneficially owned by such Person and its affiliates and (ii) exercise or conversion of the unexercised or unconverted
portion of any other securities of the 

  
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Company beneficially owned by such Person and its affiliates (including, without limitation, any convertible notes or convertible preferred stock or warrants) subject to a limitation on
conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities
Exchange Act of 1934, as amended (the “Exchange Act”), it being acknowledged that the Company is not representing to the Holder that such calculation is in compliance with Section 13(d) of the Exchange Act, and the Holder is
solely responsible for any schedules required to be filed in accordance therewith. For purposes of this Warrant, in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock
as reflected in (1) the Company’s most recent Form 10-K, Proxy Statement, Form 10-Q, Current Report on Form 8-K or other public filing with the Securities and Exchange Commission, as the case may be, (2) a more recent public
announcement by the Company or (3) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, where such
request indicates that it is being made pursuant to this Warrant, the Company shall within one (1) Trading Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of
outstanding shares of Common Stock shall be determined after giving effect to the conversion or exercise of securities of the Company, including the Warrants, by the Holder and its affiliates since the date as of which such number of outstanding
shares of Common Stock was reported. By written notice to the Company, the Holder may increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided, that (i) any such
increase will not be effective until the 61st day after
such notice is delivered to the Company and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of Warrants. 
 (e) No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of this Warrant. As to any fraction of a share that the Holder
would otherwise be entitled to purchase upon such exercise, the Company shall pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Exercise Price. 

2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES. The Exercise Price and the number of Warrant Shares shall be
adjusted from time to time as follows: 
 (a) Adjustment upon Subdivision or Combination of Shares of Common
Stock. If the Company at any time on or after the Issuance Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater number of shares, the
Exercise Price in effect immediately prior to such subdivision will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the Issuance Date combines (by combination,
reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately increased and the number of
Warrant Shares will be proportionately decreased. Any adjustment under this Section 2(a) shall become effective at the close of business on the date the subdivision or combination becomes effective. 

  
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 (b) Other Events. If any event occurs of the type contemplated by the
provisions of Section 2(a) but not expressly provided for by such provisions (including, without limitation, the granting of stock appreciation rights, phantom stock rights or other rights with equity features to the holders of the
Company’s equity securities), then the Company’s Board of Directors will make an appropriate adjustment in the Exercise Price and the number of Warrant Shares so as to protect the rights of the Holder; provided, that no such
adjustment pursuant to this Section 2(b) will increase the Exercise Price or decrease the number of Warrant Shares as otherwise determined pursuant to this Section 2. 

(c) Par Value. Notwithstanding anything to the contrary in this Warrant, in no event shall the Exercise Price be
reduced below the par value of the Company’s Common Stock. 
 3. RIGHTS UPON DISTRIBUTION OF ASSETS. If the Company
shall declare or make any dividend or other distribution of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution of cash, stock
or other securities, property or options by way of a dividend, spin off, reclassification, corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after the issuance of this
Warrant, then, in each such case: 
 (a) any Exercise Price in effect immediately prior to the close of business
on the record date fixed for the determination of holders of shares of Common Stock entitled to receive the Distribution shall be reduced, effective as of the close of business on such record date, to a price determined by multiplying such Exercise
Price by a fraction of which (i) the numerator shall be the Weighted Average Price of the shares of Common Stock on the Trading Day immediately preceding such record date minus the value of the Distribution (as determined in good faith by the
Company’s Board of Directors) applicable to one share of Common Stock, and (ii) the denominator shall be the Weighted Average Price of the shares of Common Stock on the Trading Day immediately preceding such record date; and 

(b) the number of Warrant Shares shall be increased to a number of shares equal to the number of shares of Common Stock
obtainable immediately prior to the close of business on the record date fixed for the determination of holders of shares of Common Stock entitled to receive the Distribution multiplied by the reciprocal of the fraction set forth in the immediately
preceding paragraph (a); provided, that in the event that the Distribution is of shares of Common Stock or common stock of a company whose common shares are traded on a national securities exchange or a national automated quotation system
(“Other Shares of Common Stock”), then the Holder may elect to receive a warrant to purchase Other Shares of Common Stock in lieu of an increase in the number of Warrant Shares, the terms of which shall be identical to those of this
Warrant, except that such warrant shall be exercisable for the number of shares of Other Shares of Common Stock that would have been payable to the Holder pursuant to the Distribution had the Holder exercised this Warrant immediately prior to such
record date and with an aggregate exercise price equal to the product of the amount by which the exercise price of this Warrant was decreased with respect to the Distribution pursuant to the terms of the immediately preceding paragraph (a) and
the number of Warrant Shares calculated in accordance with the first part of this paragraph (b). 

  
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 4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 

(a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if at any time prior to the
Expiration Date the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to all of the record holders of any class of shares of Common Stock (the
“Purchase Rights”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of
Common Stock acquirable upon complete exercise of this Warrant (without regard to any limitations on the exercise of this Warrant) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if
no such record is taken, the date as of which the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 

(b) Fundamental Transactions. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall
succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and
power of the Company and shall assume all of the obligations of the Company under this Warrant with the same effect as if such Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor
Entity shall deliver to the Holder confirmation that there shall be issued upon exercise of this Warrant at any time after the consummation of the Fundamental Transaction, in lieu of the shares of the Common Stock (or other securities, cash, assets
or other property purchasable upon the exercise of the Warrant prior to such Fundamental Transaction), such shares of stock, securities, cash, assets or any other property whatsoever (including warrants or other purchase or subscription rights), if
any, that the Holder would have been entitled to receive upon the happening of such Fundamental Transaction had this Warrant been exercised immediately prior to such Fundamental Transaction, as adjusted in accordance with the provisions of this
Warrant. In addition to and not in substitution for any other rights hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with
respect to or in exchange for shares of Common Stock (a “Corporate Event”), the Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon exercise of this Warrant within 90
days after the consummation of the Fundamental Transaction but, in any event, prior to the Expiration Date, in lieu of the shares of the Common Stock (or other securities, cash, assets or other property) purchasable upon the exercise of the Warrant
prior to such Fundamental Transaction, such shares of stock, securities, cash, assets or any other property whatsoever (including warrants or other purchase or subscription rights) which the Holder would have been entitled to receive upon the
happening of such Fundamental Transaction had the Warrant been exercised immediately prior to such Fundamental Transaction. 

5. RESERVATION OF WARRANT SHARES. The Company covenants that it will at all times reserve and keep available out of the aggregate
of its authorized but unissued and otherwise unreserved Common Stock, solely for the purpose of enabling it to issue Warrant Shares upon exercise of this Warrant as herein provided, the number of shares of Common Stock which are then issuable and

  
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deliverable upon the exercise of this entire Warrant, free from preemptive or any other contingent purchase rights of Persons other than the Holder (taking into account the adjustments and
restrictions in Section 2). Such reservation shall comply with the provisions of Section 1. The Company covenants that all shares of Common Stock so issuable and deliverable shall, upon issuance and the payment of the applicable Exercise
Price in accordance with the terms hereof, be duly and validly authorized, issued and fully paid and nonassessable. The Company will take all such actions as may be reasonably necessary to assure that such shares of Common Stock may be issued as
provided herein without violation of any applicable law or regulation, or of any requirements of any securities exchange or automated quotation system upon which the Common Stock may be listed. 

6. WARRANT HOLDER NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided herein, the Holder, solely in such
Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share capital of the Company for any purpose, nor shall anything contained in this Warrant be construed to confer upon
the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or any right to vote, give or withhold consent to any corporate action (whether any reorganization, issue of stock,
reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise, prior to the issuance to the Holder of the Warrant Shares which such Person is then
entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on the Holder to purchase any securities (upon exercise of this Warrant or otherwise) or as a
stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. 
 7.
REGISTRATION AND REISSUANCE OF WARRANTS. 
 (a) Registration of Warrant. The Company shall register
this Warrant, upon the records to be maintained by the Company for that purpose (the “Warrant Register”), in the name of the record Holder hereof from time to time. The Company may deem and treat the registered Holder of this
Warrant as the absolute owner hereof for the purpose of any exercise hereof or any distribution to the Holder, and for all other purposes, absent actual notice to the contrary. The Company shall also register any transfer, exchange, reissuance or
cancellation of any portion of this Warrant in the Warrant Register. 
 (b) Transfer of Warrant. This
Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as may otherwise be required by applicable securities laws. Subject to applicable securities laws, if this Warrant is to be transferred, the
Holder shall surrender this Warrant to the Company or its Transfer Agent, as directed by the Company, together with all applicable transfer taxes, whereupon the Company will, or will cause its Transfer Agent to, forthwith issue and deliver upon the
order of the Holder a new Warrant (in accordance with Section 7(e)), registered as the Holder may request, representing the right to purchase the number of Warrant Shares being transferred by the Holder and, if less then the total number of
Warrant Shares then underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(e)) to the Holder representing the right to purchase the number of Warrant Shares not being transferred. The acceptance of the new
Warrant by the transferee thereof shall be deemed the acceptance by such transferee of all of the rights and obligations in respect of the new Warrant that the Holder has in respect of this Warrant. 

  
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 (c) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of
evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form or the
provision of reasonable security by the Holder to the Company and, in the case of mutilation, upon surrender and cancellation of this Warrant, the Company or its Transfer Agent, as directed by the Company, shall execute and deliver to the Holder a
new Warrant (in accordance with Section 7(e)) representing the right to purchase the Warrant Shares then underlying this Warrant. 
 (d) Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon the surrender hereof by the Holder at the principal office of the Company or its Transfer Agent, as directed by the
Company, together with all applicable transfer taxes, for a new Warrant or Warrants (in accordance with Section 7(e)) representing in the aggregate the right to purchase the number of Warrant Shares then underlying this Warrant, and each such
new Warrant will represent the right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however, that the Company or its Transfer Agent, as directed by the Company,
shall not be required to issue Warrants for fractional shares of Common Stock hereunder. 
 (e) Issuance of
New Warrants. Whenever the Company or its Transfer Agent, as directed by the Company, is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant shall (i) be of like tenor with this Warrant,
(ii) represent, as indicated on the face of such new Warrant, the right to purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(b) or Section 7(c), the Warrant
Shares designated by the Holder which, when added to the number of shares of Common Stock underlying the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this Warrant),
(iii) have an issuance date, as indicated on the face of such new Warrant which is the same as the Issuance Date and (iv) have the same rights and conditions as this Warrant. 

8. NOTICES. Whenever notice is required to be given under this Warrant, unless otherwise provided herein, such notice shall be
given in accordance with the information set forth in the Warrant Register. The Company shall give written notice to the Holder (i) reasonably promptly following any adjustment of the Exercise Price, setting forth in reasonable detail, and
certifying, the calculation of such adjustment and (ii) at least ten (10) days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the shares of Common Stock,
(B) with respect to any grants, issuances or sales of any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of shares of Common Stock or (C) for
determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation; provided, that in each case, such information shall be made known to the public prior to or in conjunction with such notice being provided to
the Holder. 
 9. AMENDMENT AND WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be
amended and the Company may take any action herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company has obtained the written consent of the Holder. 

  
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 10. LIMITATION OF LIABILITY. No provision hereof, in the absence of any affirmative
action by Holder to exercise this Warrant to purchase Warrant Shares, and no enumeration herein of the rights or privileges of Holder, shall give rise to any liability of Holder for the purchase price of any Warrant Shares or as a stockholder of the
Company, whether such liability is asserted by the Company or by creditors of the Company. 
 11. GOVERNING LAW. This
Warrant shall be governed by and construed and enforced in accordance with, and all questions concerning the construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of New York,
without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York.

 12. CONSTRUCTION; HEADINGS. This Warrant shall be deemed to be jointly drafted by the Company and all the Investors
and shall not be construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not form part of, or affect the interpretation of, this Warrant. 

13. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or the arithmetic calculation of
the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via email or facsimile within two (2) Trading Days of receipt of the Exercise Notice giving rise to such dispute, as the case may be, to the
Holder. If the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within five (5) Trading Days of such disputed determination or arithmetic calculation being submitted
to the Holder, then the Company shall, within two (2) Trading Days submit via email or facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the
Holder or (b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause the investment bank or the accountant, as the case may be, to perform the determinations or
calculations and notify the Company and the Holder of the results no later than ten (10) Trading Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s determination or
calculation, as the case may be, shall be binding upon all parties absent demonstrable error. The expenses of the investment bank and accountant will be borne by the Company unless the investment bank or accountant determines that the determination
of the Exercise Price or the arithmetic calculation of the Warrant Shares by the Holder was incorrect, in which case the expenses of the investment bank and accountant will be borne by the Holder. 

14. REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Warrant shall be cumulative and in
addition to all other remedies available under this Warrant, at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the right of the Holder to pursue actual damages for any
failure by the Company to comply with the terms of this Warrant. The Company acknowledges that a breach by it of its obligations hereunder may cause irreparable harm to the Holder and that the remedy at law for any

  
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such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the holder of this Warrant shall be entitled, in addition to all other
available remedies, to seek an injunction restraining any breach. Notwithstanding the foregoing or anything else herein to the contrary, if the Company is for any reason unable to issue and deliver Warrant Shares upon exercise of this Warrant as
required pursuant to the terms hereof, the Company shall have no obligation to pay to the Holder any cash or other consideration or otherwise “net cash settle” this Warrant. 

15. CERTAIN DEFINITIONS. For purposes of this Warrant, the following terms shall have the following meanings: 

(a) “Bloomberg” means Bloomberg Financial Markets. 

(b) “Change of Control” means any Fundamental Transaction other than (i) any reorganization,
recapitalization or reclassification of the Common Stock in which holders of the Company’s voting power immediately prior to such reorganization, recapitalization or reclassification continue after such reorganization, recapitalization or
reclassification to hold publicly traded securities and, directly or indirectly, the voting power of the surviving entity or entities necessary to elect a majority of the members of the board of directors (or their equivalent if other than a
corporation) of such entity or entities, or (ii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 

(c) “Common Stock” means (i) the Company’s shares of Common Stock, $0.01 par value per share,
and (ii) any share capital into which such Common Stock shall have been changed or any share capital resulting from a reclassification of such Common Stock. 

(d) “Convertible Securities” means any stock or securities (other than Options) directly or indirectly
convertible into or exercisable or exchangeable for shares of Common Stock. 
 (e)
“Eligible Market” means the Principal Market, The New York Stock Exchange, Inc., the NYSE Amex LLC, The Nasdaq Stock Market, or the OTC Bulletin Board®. 
 (f) “Fundamental
Transaction” means that (A) the Company shall, directly or indirectly, in one or more related transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Person, or
(ii) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Company to another Person, or (iii) allow another Person providing to make a purchase, tender or exchange offer that is
accepted by the holders of more than 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the Person or Persons making or party to, or associated or affiliated with the Persons making or party to, such
purchase, tender or exchange offer), or (iv) consummate a stock purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby
such other Person acquires more than 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making or party to, or associated or affiliated with the other Persons making or
party to, such stock purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify the Common Stock or (B) any “person” or “group” (as these terms are used for purposes of Sections
13(d) and 

  
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14(d) of the Exchange Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of 50% of the aggregate ordinary voting
power represented by issued and outstanding Common Stock. 
 (g) “Options” means any rights,
warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (h)
“Parent Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person and whose common stock or equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one
such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization as of the date of consummation of the Fundamental Transaction. 

(i) “Person” means an individual, a limited liability company, a partnership, a joint venture, a
corporation, a trust, an unincorporated organization, any other entity and a government or any department or agency thereof. 
 (j) “Principal Market” means the Nasdaq Global Market. 
 (k) “Successor Entity” means the Person (or, if so elected by the Holder, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person (or, if so
elected by the Holder, the Parent Entity) with which such Fundamental Transaction shall have been entered into. 

(l) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the
Principal Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any
day on which the Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or
market does not designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York Time). 
 (m) “Weighted Average Price” means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at
9:30:01 a.m., New York City time, and ending at 4:00:00 p.m., New York City time, as reported by Bloomberg through its “Volume at Price” function or, if the foregoing does not apply, the dollar volume-weighted average price of such
security in the over-the-counter market on the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York City time, and ending at 4:00:00 p.m., New York City time, as reported by Bloomberg, or, if no dollar
volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for such security as reported in the “pink
sheets” by Pink Sheets LLC. If the Weighted Average Price cannot be calculated for such security on such date on any of the foregoing bases, the Weighted Average Price of such security on such date shall be the fair market value as mutually
determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market 

  
 11 

 
value of such security, then such dispute shall be resolved pursuant to Section 13 with the term “Weighted Average Price” being substituted for the term “Exercise Price.”
All such determinations shall be appropriately adjusted for any share dividend, share split or other similar transaction during such period. 
 [Signature Page Follows] 

  
 12 

 IN WITNESS WHEREOF, the Company has caused this Warrant to Purchase Common Stock to
be duly executed as of the Issuance Date set out above. 
  

			
	MANNKIND CORPORATION
		
	By:	 	  

	Name:
	Title:

 EXHIBIT A 
 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE
THIS 
 WARRANT TO PURCHASE COMMON STOCK 
 MANNKIND CORPORATION 
 The undersigned holder hereby exercises the right to purchase
                     of the shares of Common Stock (“Warrant Shares”) of MannKind Corporation, a Delaware corporation (the
“Company”), evidenced by the attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant.

 1. Exercise Price. The Holder intends that payment of the Exercise Price shall be made as (check one): 

 

	 	 ̈	Cash Exercise under Section 1(a). 

  

	 	 ̈	Cashless Exercise under Section 1(c). 

 2. Cash Exercise. If the Holder has elected a Cash Exercise, the Holder shall pay the sum of $             to the Company in accordance
with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder
                     Warrant Shares in accordance with the terms of the Warrant. 

4. Representations and Warranties. By its delivery of this Exercise Notice, the undersigned represents and warrants to the Company
that in giving effect to the exercise evidenced hereby the Holder will not beneficially own in excess of the number of shares of Common Stock (determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended)
permitted to be owned under Section 1(d) of this Warrant to which this notice relates. 
  

									
	 DATED:
	 	  
	 		 		 	
				
		 		 		 	(Signature must conform in all respects to name of the Holder as specified on the face of the Warrant)
				
		 		 		 	  

		 		 		 	Registered Holder
					
		 		 		 	Address:	 	  

		 		 		 	  

		 		 		 	  

 ACKNOWLEDGMENT 

The Company hereby acknowledges this Exercise Notice. 

 

			
	MANNKIND CORPORATION
		
	By:	 	  

	Name:	 	
	Title:Common Stock Purchase Agreement

 Exhibit 10.1 
 MANNKIND CORPORATION 
 COMMON STOCK 

PURCHASE AGREEMENT 
 This COMMON STOCK PURCHASE AGREEMENT (this “Agreement”) is made as of the 2nd day of February, 2012 by and between MannKind Corporation, a Delaware corporation (the
“Company”), and The Mann Group LLC (such Purchaser, including its successors and assigns, the “Purchaser”). 
 WHEREAS, subject to the terms and conditions set forth in this Agreement, the Company desires to issue and sell to the Purchaser, and the Purchaser desires to purchase from the Company, 31,250,000 shares
of the Company’s common stock, $0.01 par value (the “Shares”). 
 NOW, THEREFORE, in consideration
of the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Company and the Purchaser agree as follows: 

1. Purchase and Sale of Stock. 
 1.1 Sale and Issuance of Common Stock. On the basis of the representations and warranties herein, and upon the terms and subject to the conditions hereof, the Purchaser agrees to purchase from the
Company and the Company agrees to issue and sell to the Purchaser at the price of $2.47 per share, which is the consolidated closing bid price for the Company’s common stock as reported by The Nasdaq Global Market on February 2, 2012 (the
“Per Share Purchase Price”). 
 1.2 Closing. Subject to the satisfaction or waiver of the
conditions set forth herein, the purchase and sale of the Shares pursuant to this Agreement (the “Closing”) shall take place at the offices of the Company within three business days following the expiration or termination of
the waiting period applicable to the transactions contemplated hereby under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Clearance”) and the Company’s receipt of stockholder approval to
increase the number of the Company’s authorized shares as necessary, or at such later time or place as the Company and the Purchaser may mutually agree. The date on which the Closing actually takes place is referred to herein as the
“Closing Date”. At such time, the Company shall cause its transfer agent to deliver to the Purchaser a certificate representing such Shares against payment therefor, which payment shall be made, at the discretion of the
Company, in the form of (a) cash, by wire transfer of immediately available funds to an account designated by the Company, (b) the cancellation of indebtedness owed by the Company to the Purchaser under that certain Amended and Restated
Promissory Note, dated August 10, 2010, as amended (the “Note”), the amount of such indebtedness cancelled to be equal to the number of Shares not paid for in cash by the Purchaser, if any, multiplied by the Per Share
Purchase Price, or (c) a combination of the foregoing; provided, however, that any cancellation of indebtedness shall be applied only to the outstanding principal balance under the Note and not to any accrued interest. In connection with
any cancellation of indebtedness, the Purchaser shall record an appropriate notation on Exhibit A to the Note to reflect such cancellation as a payment of principal on the Note. 

  
 1. 

 2. Representations and Warranties of the Company. The Company hereby represents and warrants to the
Purchaser that: 
 (a) All corporate action on the part of the Company, its officers, directors and stockholders necessary for
the authorization of this Agreement, the performance of all obligations of the Company hereunder and the authorization, sale, issuance and delivery of the Shares pursuant hereto has been taken. 

(b) This Agreement constitutes a valid and binding obligation of the Company enforceable against the Company in accordance with its
terms, except as may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium or other laws of general application affecting enforcement of creditors’ rights generally and (ii) equitable principles of general
applicability relating to the availability of specific performance, injunctive relief or other equitable remedies. 
 (c)
Assuming the accuracy of the representations and warranties of the Purchaser contained in Section 3 hereof, the offer, sale and issuance of the shares of Common Stock pursuant hereto will be exempt from the registration requirements of the
Securities Act of 1933, as amended (the “Securities Act”), and will have been registered or qualified (or are exempt from registration and qualification) under the registration, permit or qualification requirements of all
applicable state securities laws. 
 3. Representations and Warranties of the Purchaser. The Purchaser hereby represents and warrants to
the Company that: 
 (a) The Purchaser has full right, power and authority to enter into this Agreement and to consummate the
transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement. 
 (b) This Agreement constitutes a valid and binding obligation of the Purchaser enforceable against the Purchaser in accordance with its terms, except as may be limited by (i) applicable bankruptcy,
insolvency, reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally and (ii) equitable principles of general applicability relating to the availability of specific performance,
injunctive relief or other equitable remedies. 
 (c) The Purchaser understands that nothing in this Agreement or any other
materials presented to the Purchaser in connection with the purchase and sale of the Shares constitutes legal, tax or investment advice. The Purchaser has consulted such legal, tax and investment advisors as it, in its sole discretion, has deemed
necessary or appropriate in connection with its purchase of the Shares. 
 (d) The Purchaser understands that the shares of
Common Stock to be purchased hereunder have not been registered under the Securities Act. The Purchaser also understands that such shares are being offered and sold pursuant to an exemption from registration contained in the Securities Act based in
part upon the Purchaser’s representations contained in this Agreement. 

  
 2. 

 (e) The Purchaser has substantial experience in evaluating and investing in private
placement transactions of securities in companies similar to the Company so that it is capable of evaluating the merits and risks of its investment in the Company and has the capacity to protect its own interests. The Purchaser must bear the
economic risk of this investment indefinitely unless the Shares purchased hereunder are registered pursuant to the Securities Act, or an exemption from registration is available. The Purchaser understands that the Company has no present intention of
registering such Shares. The Purchaser also understands that there is no assurance that any exemption from registration under the Securities Act will be available and that, even if available, such exemption may not allow the Purchaser to transfer
all or any portion of such Shares under the circumstances, in the amounts or at the times the Purchaser might propose. 
 (f)
The Purchaser is acquiring the Shares to be purchased hereunder for the Purchaser’s own account for investment only, and not with a view towards their distribution. 
 (g) The Purchaser has the capacity to protect its own interests in connection with the transactions contemplated in this Agreement. 

(h) The Purchaser is an accredited Purchaser within the meaning of Regulation D under the Securities Act. 

4. Covenant of the Purchaser. The Purchaser hereby covenants with the Company to use its reasonable best efforts to cooperate with the Company and
counsel for the Company to obtain the HSR Clearance contemplated by Section 1.2 of this Agreement as soon as reasonably practicable following the date of this Agreement. 
 5. Restrictions on Transfer 
 5.1 Rule 144. The Purchaser
acknowledges and agrees that the Shares to be purchased hereunder are “restricted securities” as defined in Rule 144 promulgated under the Securities Act as in effect from time to time and must be held indefinitely unless they are
subsequently registered under the Securities Act or an exemption from such registration is available. The Purchaser has been advised or is aware of the provisions of Rule 144, which permits limited resale of shares purchased in a private placement
subject to the satisfaction of certain conditions, including, among other things: the availability of certain current public information about the Company, the resale occurring following the required holding period under Rule 144 and the number of
shares being sold during any three-month period not exceeding specified limitations. 
 5.2 Restrictive Legend. The
Purchaser acknowledges and agrees that each certificate representing the Shares purchased hereunder shall be stamped or otherwise imprinted with a legend substantially similar to the following (in addition to any legend required under applicable
state securities laws): 
 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE “ACT”), AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, 

  
 3. 

 
ASSIGNED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR UNLESS THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY AND ITS COUNSEL THAT SUCH
REGISTRATION IS NOT REQUIRED. 
 5.3 Legend Removal. The Company shall be obligated to reissue promptly unlegended
certificates at the request of the Purchaser if the Purchaser shall have obtained an opinion of counsel (which counsel may be counsel to the Company) reasonably acceptable to the Company to the effect that the securities proposed to be disposed of
may lawfully be so disposed of without registration, qualification and legend. 
 6. Miscellaneous. 

6.1 Successors and Assigns. This Agreement may not be assigned by either party without the prior written consent of the other
party. Subject to the preceding sentence, this Agreement will be binding upon the parties and their respective successors and assigns. 
 6.2 Governing Law. This Agreement shall be governed by, and construed and enforced in accordance with, the laws of the State of New York, excluding conflict of laws principles that would cause the
application of laws of any other jurisdiction. 
 6.3 Counterparts; Facsimile. This Agreement may be executed in two or
more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Facsimile and electronic (PDF) signatures shall be as effective as original signatures. 

6.4 Titles and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be
considered in construing or interpreting this Agreement. 
 6.5 Notices. Unless otherwise provided, any notice required
or permitted under this Agreement shall be given in writing and shall be deemed effectively given upon personal delivery to the party to be notified or upon facsimile transmission and by courier service (with proof of service), or by registered or
certified mail (return receipt requested and first-class postage prepaid) and addressed to the party to be notified at the address indicated for such party on the signature page hereof, or at such other address as such party may designate by 10
days’ advance written notice to the other parties. 
 6.6 Finder’s Fee. Each party represents that it neither
is nor will be obligated for any finders’ fee or commission in connection with this transaction. 
 6.7 Amendments and
Waivers. Any term of this Agreement may be amended and the observance of any term of this Agreement may be waived (either generally or in a particular instance and either retroactively or prospectively), only with the written consent of both the
Company and the Purchaser. 
 6.8 Severability. If one or more provisions of this Agreement are held to be unenforceable
under applicable law, such provision shall be excluded from this Agreement and 

  
 4. 

 
the balance of the Agreement shall be interpreted as if such provision were so excluded and shall be enforceable in accordance with its terms. 

6.9 Entire Agreement. This Agreement and the other documents referred to herein constitute the entire agreement among the parties
and no party shall be liable or bound to any other party in any manner by any warranties, representations, or covenants except as specifically set forth herein or therein. 
 6.10 Term. This Agreement shall terminate upon the day following the Closing. 
 [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK] 

  
 5. 

 IN WITNESS WHEREOF, the parties hereto
have executed this Agreement as of the day and year first above written. 
 MANNKIND CORPORATION

  

			
	By:	 	 /s/ Matthew J. Pfeffer

		 	Matthew J. Pfeffer
		 	Chief Financial Officer
	
	Address:     28903 North Avenue Paine
	                   Valencia, California 91355

 THE MANN GROUP LLC 

 

			
	By:	 	 /s/ Alfred E. Mann

		 	Alfred E. Mann
		 	Managing Member
	
	Address:     12744 San Fernando Rd.
	                    Sylmar, California 91342

 [SIGNATURE PAGE TO COMMON STOCK
PURCHASE AGREEMENT]

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