Document:

Exhibit
10.01

ALLOS
THERAPEUTICS, INC.

INDEMNITY
AGREEMENT

THIS INDEMNITY AGREEMENT (this
“Agreement”) dated as of             ,
20  , is made by and between ALLOS
THERAPEUTICS, INC., a Delaware corporation (the “Company”), and             
(“Indemnitee”).

RECITALS

A.            The Company desires to attract and retain the services of
highly qualified individuals as directors, officers, employees and agents.

B.            The Company’s bylaws (the “Bylaws”)
require that the Company indemnify its directors and officers, and empowers the
Company to indemnify its  employees and
agents, as authorized by the Delaware General Corporation Law, as amended (the “DGCL”), under which the Company is organized and such Bylaws
expressly provide that the indemnification provided therein is not exclusive
and contemplates that the Company may enter into separate agreements with its
directors, officers and other persons to set forth specific indemnification
provisions.

C.            The Company desires and has requested Indemnitee to serve
or continue to serve as a director, officer, employee or agent of the Company,
as the case may be, and has proffered this Agreement to Indemnitee as an
additional inducement to serve in such capacity.

D.            Indemnitee is willing to serve, or to continue to serve,
as a director, officer, employee or agent of the Company, as the case may be,
and has requested that the Company furnish the indemnity provided for herein.

AGREEMENT

NOW THEREFORE,
in consideration of the mutual covenants and agreements set forth herein, the
parties hereto, intending to be legally bound, hereby agree as follows:

1.             Definitions.

(a)           Agent.  For purposes of this Agreement, the term “agent”
of the Company means any person who: (i) is or was a director, officer, employee or other fiduciary of the Company or a
subsidiary of the Company; or (ii) is or was serving at the request or for
the convenience of, or representing the interests of, the Company or a
subsidiary of the Company, as a director, officer, employee or other fiduciary
of a foreign or domestic corporation, partnership,  joint venture, trust or other enterprise.

(b)           Expenses.  For purposes of this Agreement, the term “expenses”
shall be broadly construed and shall include, without limitation, all direct
and indirect costs of any type or nature whatsoever (including, without
limitation, all attorneys’, witness, or other professional fees and related
disbursements, and other out-of-pocket costs of whatever nature), actually and
reasonably incurred by Indemnitee in connection with the investigation, defense
or appeal of a proceeding or establishing or enforcing a right to
indemnification under this Agreement, the 

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DGCL or otherwise, and amounts paid in settlement by
or on behalf of Indemnitee, but shall not include any judgments, fines or
penalties actually levied against Indemnitee for such individual’s violations
of law.  The term “expenses” shall also
include reasonable compensation for time spent by Indemnitee for which he is
not compensated by the Company or any subsidiary or third party (i) for any
period during which Indemnitee is not an agent, in the employment of, or
providing services for compensation to, the Company or any subsidiary; and (ii)
if the rate of compensation and estimated time involved is approved by the
directors of the Company who are not parties to any action with respect to
which expenses are incurred, for Indemnitee while an agent of, employed by, or
providing services for compensation to, the Company or any subsidiary.

(c)           Proceedings.  For purposes of this Agreement, the term “proceeding”
shall be broadly construed and shall include, without limitation, any
threatened, pending, or completed action, suit, arbitration, alternate dispute
resolution mechanism, investigation, inquiry, administrative hearing or any
other actual, threatened or completed proceeding, whether brought in the right
of the Company or otherwise and whether of a civil, criminal, administrative or
investigative nature, and whether formal or informal in any case, in which
Indemnitee was, is or will be involved as a party or otherwise by reason
of:  (i) the fact that Indemnitee is or
was a director or officer of the Company; (ii) the fact that any action taken
by Indemnitee or of any action on Indemnitee’s part while acting as director,
officer, employee or agent of the Company; or (iii) the fact that Indemnitee is
or was serving at the request of the Company as a director, officer, employee
or agent of another corporation, partnership, joint venture, trust, employee
benefit plan or other enterprise, and in any such case described above, whether
or not serving in any such capacity at the time any liability or expense is
incurred for which indemnification, reimbursement, or advancement of expenses
may be provided under this Agreement.

(d)           Subsidiary.  For purposes of this Agreement, the term “subsidiary”
means any corporation or limited liability company of which more than 50% of
the outstanding voting securities or equity interests are owned, directly or
indirectly, by the Company and one or more of its subsidiaries, and any other
corporation, limited liability company, partnership, joint venture, trust,
employee benefit plan or other enterprise of which Indemnitee is or was serving
at the request of the Company as a director, officer, employee, agent or
fiduciary.

(e)           Independent Counsel.  For purposes of this Agreement, the term “independent
counsel” means a law firm, or a partner (or, if applicable, member) of such a
law firm, that is experienced in matters of corporation law and neither
presently is, nor in the past five (5)  years has
been, retained to represent: (i) the Company or Indemnitee in any matter
material to either such party, or (ii) any other party to the proceeding giving
rise to a claim for indemnification hereunder. 
Notwithstanding the foregoing, the term “independent counsel” shall not
include any person who, under the applicable standards of professional conduct
then prevailing, would have a conflict of interest in representing either the
Company or Indemnitee in an action to determine Indemnitee’s rights under this
Agreement.

2.             Agreement to Serve.  Indemnitee will serve, or continue to serve,
as a director, officer, employee or agent of the Company or any subsidiary, as
the case may be, faithfully and to the best of his or her ability, at the will
of such corporation (or under separate agreement, if such agreement exists), in
the capacity Indemnitee currently serves as an agent of such 

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corporation, so long as Indemnitee is duly appointed
or elected and qualified in accordance with the applicable provisions of the
Bylaws or other applicable charter documents of such corporation, or until such
time as Indemnitee tenders his or her resignation in writing; provided,
however, that nothing contained in this Agreement is intended as an employment
agreement between Indemnitee and the Company or any of its subsidiaries or to
create any right to continued employment of Indemnitee with the Company or any
of its subsidiaries in any capacity.

The Company acknowledges that it has entered into this
Agreement and assumes the obligations imposed on it hereby, in addition to and
separate from its obligations to Indemnitee under the Bylaws, to induce
Indemnitee to serve, or continue to serve, as a director,  officer,
employee or agent of the Company, and the Company acknowledges that Indemnitee
is relying upon this Agreement in serving as a director, officer, employee or
agent of the Company.

3.             Indemnification.

(a)           Indemnification in Third Party
Proceedings.  Subject
to Section 10 below, the Company shall indemnify Indemnitee to the fullest
extent permitted by the DGCL, as the same may be amended from time to time
(but, only to the extent that such amendment permits Indemnitee to broader
indemnification rights than the DGCL permitted prior to adoption of such amendment),
if Indemnitee is a party to or threatened to be made a party to or otherwise
involved in any proceeding, for any and all expenses, actually and reasonably
incurred by Indemnitee in connection with the investigation, defense,
settlement or appeal of such proceeding.

(b)           Indemnification in Derivative Actions
and Direct Actions by the Company.  Subject to Section 10 below, the Company
shall indemnify Indemnitee to the fullest extent permitted by the DGCL, as the
same may be amended from time to time (but, only to the extent that such
amendment permits Indemnitee to broader indemnification rights than the DGCL
permitted prior to adoption of such amendment), if Indemnitee is a party to or
threatened to be made a party to or otherwise involved in any proceeding by or
in the right of the Company to procure a judgment in its favor, against any and
all expenses actually and reasonably incurred by Indemnitee in connection with
the investigation, defense, settlement, or appeal of such proceedings.

4.             Indemnification of Expenses of
Successful Party. 
Notwithstanding any other provision of this Agreement, to the extent
that Indemnitee has been successful on the merits or otherwise in defense of
any proceeding or in defense of any claim, issue or matter therein, including
the dismissal of any action without prejudice, the Company shall indemnify
Indemnitee against all expenses actually and reasonably incurred in connection
with the investigation, defense or appeal of such proceeding.

5.             Partial Indemnification.  If Indemnitee is entitled under any provision
of this Agreement to indemnification by the Company for some or a portion of
any expenses actually and reasonably incurred by Indemnitee in the
investigation, defense, settlement or appeal of a proceeding, but is precluded
by applicable law or the specific terms of this Agreement to 

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indemnification for the total amount thereof, the
Company shall nevertheless indemnify Indemnitee for the portion thereof to
which Indemnitee is entitled.

6.             Advancement of Expenses.  To the extent not prohibited by law, the
Company shall advance  the expenses
incurred by Indemnitee in connection with any proceeding, and such advancement
shall be made within twenty (20) days after the receipt by the Company of a
statement or statements requesting such advances (which shall include invoices
received by Indemnitee in connection with such expenses but, in the case of
invoices in connection with legal services, any references to legal work
performed or to expenditures made that would cause Indemnitee to waive any
privilege accorded by applicable law shall not be included with the invoice)
and upon request of the Company, an undertaking to repay the advancement of
expenses if and to the extent that it is ultimately determined by a court of
competent jurisdiction in a final judgment, not subject to appeal, that
Indemnitee is not entitled to be indemnified by the Company.  Advances shall be unsecured, interest free
and without regard to Indemnitee’s ability to repay the expenses. Advances
shall include any and all expenses actually and reasonably incurred by
Indemnitee pursuing an action to enforce Indemnitee’s right to indemnification
under this Agreement, or otherwise and this right of advancement, including
expenses incurred preparing and forwarding statements to the Company to support
the advances claimed.  Indemnitee
acknowledges that the execution and delivery of this Agreement shall constitute
an undertaking providing that Indemnitee shall, to the fullest extent required
by law, repay the advance if and to the extent that it is ultimately determined
by a court of competent jurisdiction in a final judgment, not subject to
appeal, that Indemnitee is not entitled to be indemnified by the Company.  The right to advances under this Section 6
shall continue until final disposition of any proceeding, including any appeal
therein.  This Section 6 shall not apply
to any claim made by Indemnitee for which indemnity is excluded pursuant to
Section 10(b).

7.             Notice
and Other Indemnification Procedures.

(a)           Notification of Proceeding.  Indemnitee will notify the Company in writing
promptly upon being served with any summons, citation, subpoena, complaint,
indictment, information or other document relating to any proceeding or matter
which may be subject to indemnification or advancement of expenses covered
hereunder.  The failure of Indemnitee to
so notify the Company shall not relieve the Company of any obligation which it
may have to Indemnitee under this Agreement or otherwise.

(b)           Request for Indemnification and
Indemnification Payments. 
Indemnitee shall notify the Company promptly in writing upon receiving
notice of any demand, judgment or other requirement for payment that Indemnitee
reasonably believes to be subject to indemnification under the terms of this
Agreement, and shall request payment thereof by the Company.  Indemnification payments requested by
Indemnitee under Section 3 hereof shall be made by the Company no later
than sixty (60) days after receipt of the written request of Indemnitee.  Claims for advancement of expenses shall be
made under the provisions of Section 6 herein.

(c)           Application for Enforcement.  In the event the Company fails to make timely
payments as set forth in Sections 6 or 7(b) above, Indemnitee shall have the
right to apply to any court of competent jurisdiction for the purpose of
enforcing Indemnitee’s right to 

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indemnification or advancement of expenses pursuant to
this Agreement.  In such an enforcement
hearing or proceeding, the burden of proof shall be on the Company to prove
that indemnification or advancement of expenses to Indemnitee is not required
under this Agreement or permitted by applicable law.  Any determination by the Company (including
its Board of Directors, stockholders or independent counsel) that Indemnitee is
not entitled to indemnification hereunder, shall not be a defense by the
Company to the action nor create any presumption that Indemnitee is not
entitled to indemnification or advancement of expenses hereunder.

(d)           Indemnification of Certain Expenses.  The Company shall indemnify Indemnitee
against all expenses incurred in connection with any hearing or proceeding
under this Section 7 unless the Company prevails in such hearing or
proceeding on the merits in all material respects.

8.             Assumption of Defense.  In the event the Company shall be requested
by Indemnitee to pay the expenses of any proceeding, the Company, if
appropriate, shall be entitled to assume the defense of such proceeding, or to
participate to the extent permissible in such proceeding, with counsel
reasonably acceptable to Indemnitee. 
Upon assumption of the defense by the Company and the retention of such
counsel by the Company, the Company shall not be liable to Indemnitee under
this Agreement for any fees of counsel subsequently incurred by Indemnitee with
respect to the same proceeding, provided that Indemnitee shall have the right
to employ separate counsel in such proceeding at Indemnitee’s sole cost and
expense.  Notwithstanding the foregoing,
if Indemnitee’s counsel delivers a written notice to the Company stating that
such counsel has reasonably concluded that there may be a conflict of interest
between the Company and Indemnitee in the conduct of any such defense or the
Company shall not, in fact, have employed counsel or otherwise actively pursued
the defense of such proceeding within a reasonable time, then in any such event
the fees and expenses of Indemnitee’s counsel to defend such proceeding shall
be subject to the indemnification and advancement of expenses provisions of
this Agreement.

9.             Insurance. To the
extent that the Company maintains an insurance policy or policies providing
liability insurance for directors, officers, employees, or agents of the
Company or of any subsidiary (“D&O Insurance”), Indemnitee shall be covered
by such policy or policies in accordance with its or their terms to the maximum
extent of the coverage available for any such director, officer, employee or
agent under such policy or policies.  If,
at the time of the receipt of a notice of a claim pursuant to the terms hereof,
the Company has D&O Insurance in effect, the Company shall give prompt
notice of the commencement of such proceeding to the insurers in accordance
with the procedures set forth in the respective policies.  The Company shall thereafter take all
necessary or desirable action to cause such insurers to pay, on behalf of
Indemnitee, all amounts payable as a result of such proceeding in accordance
with the terms of such policies.

10.          Exceptions.

(a)           Certain Matters.  Any provision herein to the contrary
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement to indemnify Indemnitee on account of any proceeding with
respect to (i) remuneration paid to Indemnitee if it is determined by
final judgment or other final adjudication that such remuneration was in 

 5
 

violation of law (and, in this respect, both the
Company and Indemnitee have been advised that the Securities and Exchange
Commission believes that indemnification for liabilities arising under the
federal securities laws is against public policy and is, therefore,
unenforceable and that claims for indemnification should be submitted to
appropriate courts for adjudication, as indicated in Section 10(d) below);
(ii) a final judgment rendered against Indemnitee for an accounting,
disgorgement or repayment of profits made from the purchase or sale by
Indemnitee of securities of the Company against Indemnitee or in connection
with a settlement by or on behalf of Indemnitee to the extent it is acknowledged
by Indemnitee and the Company that such amount paid in settlement resulted from
Indemnitee’s conduct from which Indemnitee received monetary personal profit,
pursuant to the provisions of Section 16(b) of the Securities Exchange Act
of 1934, as amended, or other provisions of any federal, state or local statute
or rules and regulations thereunder; (iii) a final judgment or other final
adjudication that Indemnitee’s conduct was in bad faith, knowingly fraudulent
or deliberately dishonest or constituted willful misconduct (but only to the
extent of such specific determination); or (iv) on account of conduct that is
established by a final judgment as constituting a breach of Indemnitee’s duty
of loyalty to the Company or resulting in any personal profit or advantage to
which Indemnitee is not legally entitled. 
For purposes of the foregoing sentence, a final judgment or other
adjudication may be reached in either the underlying proceeding or action in
connection with which indemnification is sought or a separate proceeding or
action to establish rights and liabilities under this Agreement.

(b)           Claims Initiated by Indemnitee.  Any provision herein to the contrary
notwithstanding, the Company shall not be obligated to indemnify or advance
expenses to Indemnitee with respect to proceedings or claims initiated or
brought by Indemnitee against the Company or its directors, officers, employees
or other agents and not by way of defense, except (i) with respect to
proceedings brought to establish or enforce a right to indemnification under
this Agreement or under any other agreement, provision in the Bylaws or
Certificate of Incorporation or applicable law, or (ii) with respect to any
other proceeding initiated by Indemnitee that is either approved by the Board
of Directors or Indemnitee’s participation is required by applicable law.  However, indemnification or advancement of
expenses may be provided by the Company in specific cases if the Board of
Directors determines it to be appropriate.

(c)           Unauthorized Settlements.  Any provision herein to the contrary
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement to indemnify Indemnitee under this Agreement for any amounts
paid in settlement of a proceeding effected without the Company’s written
consent.  Neither the Company nor
Indemnitee shall unreasonably withhold consent to any proposed settlement;
provided, however, that the Company may in any event decline to consent to (or
to otherwise admit or agree to any liability for indemnification hereunder in
respect of) any proposed settlement if the Company is also a party in such
proceeding and determines in good faith that such settlement is not in the best
interests of the Company and its stockholders.

(d)           Securities Act Liabilities.  Any provision herein to the contrary
notwithstanding, the Company shall not be obligated pursuant to the terms of
this Agreement to indemnify Indemnitee or otherwise act in violation of any
undertaking appearing in and required by the rules and regulations promulgated
under the Securities Act of 1933, as amended (the 

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“Act”), or in any registration statement filed with
the SEC under the Act.  Indemnitee
acknowledges that paragraph (h) of Item 512 of Regulation S-K currently
generally requires the Company to undertake in connection with any registration
statement filed under the Act to submit the issue of the enforceability of
Indemnitee’s rights under this Agreement in connection with any liability under
the Act on public policy grounds to a court of appropriate jurisdiction and to
be governed by any final adjudication of such issue.  Indemnitee specifically agrees that any such
undertaking shall supersede the provisions of this Agreement and to be bound by
any such undertaking.

11.          Nonexclusivity and Survival of Rights.  The provisions for indemnification and
advancement of expenses set forth in this Agreement shall not be deemed
exclusive of any other rights which Indemnitee may at any time be entitled
under any provision of applicable law, the Company’s Certificate of
Incorporation, Bylaws or other agreements, both as to action in Indemnitee’s
official capacity and Indemnitee’s action as an agent of the Company, in any
court in which a proceeding is brought, and Indemnitee’s rights hereunder shall
continue after Indemnitee has ceased acting as an agent of the Company and
shall inure to the benefit of the heirs, executors, administrators and assigns
of Indemnitee.  The obligations and
duties of the Company to Indemnitee under this Agreement shall be binding on
the Company and its successors and assigns until terminated in accordance with
its terms.  The Company shall require any
successor (whether direct or indirect, by purchase, merger, consolidation or
otherwise) to all or substantially all of the business or assets of the
Company, expressly to assume and agree to perform this Agreement in the same
manner and to the same extent that the Company would be required to perform if
no such succession had taken place.

No amendment, alteration or repeal of this Agreement
or of any provision hereof shall limit or restrict any right of Indemnitee
under this Agreement in respect of any action taken or omitted by such
Indemnitee in his or her corporate status prior to such amendment, alteration
or repeal.  To the extent that a change
in the DGCL, whether by statute or judicial decision, permits greater
indemnification or advancement of expenses than would be afforded currently
under the Company’s Certificate of Incorporation, Bylaws and this Agreement, it
is the intent of the parties hereto that Indemnitee shall enjoy by this
Agreement the greater benefits so afforded by such change.  No right or remedy herein conferred is
intended to be exclusive of any other right or remedy, and every other right
and remedy shall be cumulative and in addition to every other right and remedy
given hereunder or now or hereafter existing at law or in equity or
otherwise.  The assertion or employment
of any right or remedy hereunder, or otherwise, by Indemnitee shall not prevent
the concurrent assertion or employment of any other right or remedy by
Indemnitee.

12.          Term.  This Agreement shall continue until and
terminate upon the later of: (a) five (5) years after the date that Indemnitee
shall have ceased to serve as a director and/or officer, employee or agent of
the Company; or (b) one (1) year after the final termination of any proceeding,
including any appeal then pending, in respect to which Indemnitee was granted
rights of indemnification or advancement of expenses hereunder.

No legal action shall be brought and no cause of
action shall be asserted by or in the right of the Company against an
Indemnitee or an Indemnitee’s estate, spouse, heirs, executors or personal or
legal representatives after the expiration of five (5) years from the date of
accrual of 

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such cause of action, and any claim or cause of action
of the Company shall be extinguished and deemed released unless asserted by the
timely filing of a legal action within such five-year period; provided,
however, that if any shorter period of limitations is otherwise applicable to
such cause of action, such shorter period shall govern.

13.          Subrogation.  In the event of payment under this Agreement,
the Company shall be subrogated to the extent of such payment to all of the
rights of recovery of Indemnitee, who, at the request and expense of the
Company, shall execute all papers required and shall do everything that may be
reasonably necessary to secure such rights, including the execution of such
documents necessary to enable the Company effectively to bring suit to enforce
such rights.

14.          Interpretation of Agreement.  It is understood that the parties hereto
intend this Agreement to be interpreted and enforced so as to provide
indemnification to Indemnitee to the fullest extent now or hereafter permitted
by law.

15.          Severability.  If any provision of this Agreement shall be
held to be invalid, illegal or unenforceable for any reason whatsoever,
(a) the validity, legality and enforceability of the remaining provisions
of the Agreement (including without limitation, all portions of any paragraphs
of this Agreement containing any such provision held to be invalid, illegal or
unenforceable, that are not themselves invalid, illegal or unenforceable) shall
not in any way be affected or impaired thereby; and (b) to the fullest
extent possible, the provisions of this Agreement (including, without
limitation, all portions of any paragraph of this Agreement containing any such
provision held to be invalid, illegal or unenforceable, that are not themselves
invalid, illegal or unenforceable) shall be construed so as to give effect to
the intent manifested by the provision held invalid, illegal or unenforceable
and to give effect to Section 14 hereof.

16.          Amendment and Waiver.  No supplement, modification, amendment, or
cancellation of this Agreement shall be binding unless executed in writing by
the parties hereto.  No waiver of any of
the provisions of this Agreement shall be deemed or shall constitute a waiver of
any other provision hereof (whether or not similar) nor shall such waiver
constitute a continuing waiver.

17.          Notice.  Except as otherwise provided herein, any
notice or demand which, by the provisions hereof, is required or which may be
given to or served upon the parties hereto shall be in writing and, if by
telegram, telecopy or telex, shall be deemed to have been validly served, given
or delivered when sent, if by overnight delivery, courier or personal delivery,
shall be deemed to have been validly served, given or delivered upon actual delivery
and, if mailed, shall be deemed to have been validly served, given or delivered
three (3) business days after deposit in the United States mail, as registered
or certified mail, with proper postage prepaid and addressed to the party or
parties to be notified at the addresses set forth on the signature page of this
Agreement (or such other address(es) as a party may designate for itself by
like notice).  If to the Company, notices
and demands shall be delivered to the attention of the Secretary of the
Company.

18.          Governing Law.  This Agreement shall be governed exclusively
by and construed according to the laws of the State of Delaware, as applied to
contracts between Delaware residents entered into and to be performed entirely
within Delaware.

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19.          Counterparts.  This Agreement may be executed in one or more
counterparts, each of which shall for all purposes be deemed to be an original
but all of which together shall constitute but one and the same Agreement.  Only one such counterpart need be produced to
evidence the existence of this Agreement.

20.          Headings.  The headings of the sections of this Agreement
are inserted for convenience only and shall not be deemed to constitute part of
this Agreement or to affect the construction hereof.

21.          Entire Agreement.  This Agreement constitutes the entire
agreement between the parties with respect to the subject matter hereof and
supersedes all prior agreements, understandings and negotiations, written and
oral, between the parties with respect to the subject matter of this Agreement;
provided, however, that this Agreement is a supplement to and in furtherance of
the Company’s Certificate of Incorporation, Bylaws, the DGCL and any other
applicable law, and shall not be deemed a substitute therefor, and does not diminish
or abrogate any rights of Indemnitee thereunder.

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IN WITNESS WHEREOF,
the parties hereto have entered into this Agreement effective as of the date
first above written.

	
  

  	
  ALLOS THERAPEUTICS, INC.

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
  By:

  	
   

  
	
   

  	
   

  	
  Name:

  	
   

  
	
   

  	
   

  	
  Title:

  	
   

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
  INDEMNITEE

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Signature of Indemnitee

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print or Type Name of Indemnitee

  
	
   

  	
   

  	
   

  	
   

  
	
   

  	
   

  
	
   

  	
  Print or Type Address of Indemnitee

  

 

 10Exhibit
10.12.1

ALLOS THERAPEUTICS, INC.

2001 EMPLOYEE STOCK PURCHASE PLAN

OFFERING

(SERIES BEGINNING JULY 1, 2007)

Adopted by the Compensation Committee of the Board
of Directors

June 19, 2007

In this document,
capitalized terms not otherwise defined shall have the same definitions of such
terms as in the Allos Therapeutics, Inc. 2001 Employee Stock Purchase Plan.

1.             Grant; Offering Periods.

(a)           The Board hereby
authorizes a series of Offerings pursuant to the terms of this Offering
document.

(b)           Each Offering
hereunder shall consist of one 6-month offering period, with the first such
period beginning on July 1, 2007 and ending on December 31, 2007, unless
terminated earlier as provided below. 
Thereafter, a new Offering shall begin on each January 1 and July 1, and
shall end on each June 30 (with respect to Offerings beginning January 1) or
December 31 (with respect to Offerings beginning July 1), as applicable, unless
the Board determines otherwise.  New
Offerings shall begin automatically as described in the preceding sentence
without any further action on the part of the Board.  Except as provided below, a Purchase Date is
the last day of an Offering and an Offering Date is the first day of an
Offering.

(c)           Notwithstanding the
foregoing: (i) if any Offering Date falls on a day that is not a Trading Day,
then such Offering Date shall instead fall on the next subsequent Trading Day
and (ii) if any Purchase Date falls on a day that is not a Trading Day, then
such Purchase Date shall instead fall on the immediately preceding Trading Day.

(d)           Prior to the
commencement of any Offering, the Board may change any or all terms of such
Offering and any subsequent Offerings. 
The granting of Purchase Rights pursuant to each Offering hereunder
shall occur on each respective Offering Date unless prior to such date
(i) the Board determines that such Offering shall not occur, or
(ii) no shares of Common Stock remain available for issuance under the
Plan in connection with the Offering.

2.             Eligible Employees.

(a)           All Employees of
the Company shall be granted Purchase Rights to purchase shares of Common Stock
under each Offering on the Offering Date of such Offering, provided that each
such Employee  otherwise meets the employment
requirements of Section 6(a) of the Plan.

(b)           Notwithstanding the
foregoing, the following Employees shall not be Eligible Employees or be
granted Purchase Rights under an Offering: (i) five percent (5%) stockholders
(including ownership through unexercised and/or unvested stock options) as
described in Section 6(c) of the Plan and (ii) Employees in jurisdictions
outside of the United States if, as of the 

 1
 

Offering Date of the Offering, the grant of such
Purchase Rights would not be in compliance with the applicable laws of any
jurisdiction in which the Employee resides or is employed.

(c)           A person who first
becomes an Eligible Employee during any Offering may not participate in such
Offering, and instead must wait until the next Offering to participate.

3.             Purchase Rights.

(a)           Subject to the
limitations contain herein and in the Plan, on an Offering Date, each Eligible
Employee shall be granted a Purchase Right to purchase the number of shares of
Common Stock purchasable with up to ten percent (10%) of such Eligible Employee’s
Earnings paid during the period of such Offering; provided,
however, that no Eligible Employee may have more than ten percent  (10%) of such Eligible Employee’s Earnings applied to
purchase shares of Common Stock under all ongoing Offerings under the Plan and
all other plans of the Company intended to qualify as Employee Stock Purchase
Plans under Section 423 of the Code.

(b)           For Offerings
hereunder, “Earnings” means the base compensation paid to an Employee,
including all salary, wages (including amounts elected to be deferred by the
employee, that would otherwise have been paid, under any cash or deferred
arrangement or other deferred compensation program established by the Company),
but excluding all overtime pay, commissions, bonuses, and other remuneration
paid directly to the Employee,  profit
sharing, the cost of employee benefits paid for by the Company, education or
tuition reimbursements, imputed income arising under any Company group
insurance or benefit program, traveling expenses, business and moving expense
reimbursements, income received in connection with stock options, contributions
made by the Company under any employee benefit plan, and similar items of
compensation.

(c)           Notwithstanding the
foregoing, the maximum number of shares of Common Stock that an Eligible Employee
may purchase on the Purchase Date under an Offering shall be such number of
shares as has a Fair Market Value (determined as of the Offering Date for such
Offering) equal to (x) $25,000 multiplied by the number of calendar years in
which the Purchase Right under such Offering has been outstanding at any time,
minus (y) the Fair Market Value of any other shares of Common Stock (determined
as of the relevant Offering Date with respect to such shares) that, for
purposes of the limitation of Section 423(b)(8) of the Code, are attributed to
any of such calendar years in which the Purchase Right is outstanding. The
amount in clause (y) of the previous sentence shall be determined in accordance
with regulations applicable under Section 423(b)(8) of the Code based on (i)
the number of shares previously purchased with respect to such calendar years
pursuant to such Offering or any other Offering under the Plan, or pursuant to
any other Company plans intended to qualify as Employee Stock Purchase Plans
under Section 423 of the Code, and (ii) the number of shares subject to other
Purchase Rights outstanding on the Offering Date for such Offering pursuant to
the Plan or any other such Company Employee Stock Purchase Plan.

(d)           The maximum
aggregate number of shares of Common Stock available to be purchased by all
Eligible Employees under an Offering shall be the number of shares of Common
Stock remaining available under the Plan on the Offering Date.  If the aggregate purchase of shares of Common
Stock upon exercise of Purchase Rights granted under an 

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Offering would exceed the maximum aggregate number of
shares available, the Board shall make a pro rata allocation of the shares
available in a uniform and equitable manner.

(e)           Notwithstanding the foregoing, the maximum number of
shares of Common Stock that an Eligible Employee may purchase during any
Offering shall not exceed five thousand (5,000) shares.

4.             Purchase Price.

The purchase price of shares of Common Stock under
each Offering shall be the lesser of: (i) eighty-five percent (85%) of the Fair
Market Value of such shares of Common Stock on the Offering Date of such
Offering or (ii) or eighty-five percent (85%) of the Fair Market Value of such
shares of Common Stock on the Purchase Date of such Offering, in each case
rounded up to the nearest whole cent per share.

5.             Participation.

(a)           An Eligible
Employee may become a Participant in an Offering by delivering an enrollment
form authorizing payroll deductions. 
Such deductions must be in whole percentages of Earnings, with a minimum
percentage of one percent (1%) and a maximum percentage of ten percent
(10%).  A Participant may not make
additional payments into his or her account. 
A Participant shall complete such enrollment form as the Company
provides, and the completed enrollment form must be delivered to the Company
prior to the date participation is to be effective, unless a later time for
filing the enrollment form is set by the Company for all Eligible Employees
with respect to a given Offering.

(b)           Except as provided
in paragraph 5(c) below, a Participant may not increase or decrease his or her
participation level during an Offering.

(c)           A Participant may
withdraw from an Offering and receive his or her accumulated payroll deductions
from the Offering without interest, at any time prior to the end of such
Offering, excluding only the ten (10) day period immediately preceding such
Offering’s Purchase Date (or such shorter period of time determined by the
Company and communicated to Participants), by delivering a withdrawal notice to
the Company in such form as the Company provides.  A Participant who has withdrawn from an
Offering shall not again participate in such Offering, but may participate in
subsequent Offerings under the Plan in accordance with the terms of the Plan
and the terms of such subsequent Offerings.

(d)            Notwithstanding
the foregoing or any other provision of this Offering document or of the Plan
to the contrary, neither the enrollment of any Eligible Employee in the Plan
nor any forms relating to participation in the Plan shall be given effect until
such time as a registration statement covering the registration of the shares
under the Plan that are subject to the applicable Offering has been filed by
the Company and has become effective.

6.             Purchases.

Subject to the limitations contained herein, on the
Purchase Date of an Offering, each Participant’s accumulated payroll deductions
(without any increase for interest) shall be applied 

 3
 

to the purchase of whole shares, up to the maximum
number of shares permitted under the Plan and the Offering.

7.             Notices and Agreements.

Any notices or agreements provided for in an Offering
or the Plan shall be given in writing, in a form provided by the Company, and
unless specifically provided for in the Plan or this Offering document, shall
be deemed effectively given upon receipt or, in the case of notices and
agreements delivered by the Company, five (5) days after deposit in the
United States mail, postage prepaid.

8.             Exercise
Contingent on Stockholder Approval.

To the extent required under the Plan or as otherwise
required by the Board, the exercise of Purchase Rights granted under an
Offering may be subject to the approval of the Plan by the stockholders of the
Company.

9.             Offering
Subject to Plan.

Each Offering is subject to all the provisions of the
Plan, and the provisions of the Plan are hereby made a part of the
Offering.  Each Offering is further
subject to all interpretations, amendments, rules and regulations which may
from time to time be promulgated and adopted pursuant to the Plan.  In the event of any conflict between the
provisions of an Offering and those of the Plan (including interpretations,
amendments, rules and regulations which may from time to time be promulgated
and adopted pursuant to the Plan), the provisions of the Plan shall control.

 

 4

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