Document:

Exhibit 10.514  

CHIRON CORPORATION.

                            , 2002  

Dear
Restricted Share Rights Holder: 

        I
am pleased to inform you that the Compensation Committee of the Board of Directors of Chiron Corporation (the "Company") recently approved an amendment to each of your outstanding
restricted share rights listed on Exhibit A (the "Share Rights") to provide you with greater protection in the event of certain corporate transactions. 

        The
amendment is set forth in detail below. In general terms, the amendment: (i) modifies the definition of "Cause" to provide you with additional protection in the event of your
termination under certain circumstances, (ii) provides that your Share Rights will automatically vest and be paid out in the event of a merger unless they are assumed by the acquiring company
and (iii) provides that your Share Rights will immediately vest upon a Qualifying Termination of your employment that occurs within twenty-four (24) months after a Change in
Control. (See below for definitions.) 

        Accordingly,
the restricted share rights letter agreement (the "Agreement) documenting your Share Rights is hereby amended to read as follows: 

        Corporate Transaction

        If the Company or its stockholders enter into an agreement to dispose of all or substantially all of the assets of the Company, enter into an agreement to merge
or consolidate with another entity, or enter into a plan of reorganization or liquidation, while your restricted share rights are outstanding, then
each outstanding share right will become vested and paid in full, immediately before the consummation of such transaction. However, no acceleration of the vesting or payment date will occur if the
agreement requires as a prerequisite to the consummation of any such transaction that each such outstanding share right will be either assumed by the successor corporation or parent thereof or be
replaced with a comparable share right in the successor corporation or parent thereof. 

        Qualifying Termination Following a Change in Control

        If there is a Change in Control of the Company pursuant to which the share rights continue and within twenty-four (24) calendar months
thereafter there is a Qualifying Termination of your employment, then these share rights will vest and will be paid out in full. 

        For
this Agreement, the following definitions apply: 

	a.
	"Change
in Control" of the Company shall be deemed to have occurred as of the first day that any one or more of the following conditions is satisfied and regulatory approval has been
granted if necessary:

	(i)
	The
"beneficial ownership" (as defined in Rule 13d-3 under the Securities Exchange Act of 1934) of securities representing more than
thirty percent (30%) of the combined voting power of all securities of the Company is acquired, directly or indirectly, by a Person (other than the Company, any trustee or other fiduciary holding
securities under an employee benefit plan of the Company or an affiliate thereof, or any corporation owned, directly or indirectly, by the stockholders of the Company in substantially the same
proportions as their ownership of stock of the Company); or

	(ii)
	During
any period of two (2) consecutive years, individuals who at the beginning of such period constitute the Board of Directors of the Company
and any new director (other than a director designated by a person who has entered into an agreement with the Company to effect a transaction described in i. above) whose election by the Board of
Directors or nomination for election by the Company's stockholders was approved by a vote of at least two-thirds of the directors then still in office who either were directors at 

 

the
beginning of the period or whose election or nomination for election was previously so approved, cease for any reason to constitute a majority thereof; or 

	(iii)
	The
stockholders of the Company approve a definitive agreement to sell or otherwise dispose of all or substantially all of its assets, or adopt a plan
for liquidation, provided that such sale or liquidation has not been abandoned. 

        Notwithstanding
anything else contained herein (this Agreement) to the contrary, in no event shall a Change in Control be deemed to have occurred by reason of a purchase, or series of
purchases of Company stock by Novartis or its successor such that the acquiring entity remains subject to the terms of that certain Governance Agreement dated as of January 5, 1995, as amended
through December 9, 2000, provided the acquiring entity's Company stock holdings, direct or indirect, in the aggregate, represent less than seventy-nine and nine-tenths
of a percent (79.9%) of the combined voting power of all outstanding Company securities. In addition, in no event shall a Change in Control be deemed to have occurred, with respect to you, if you are
part of a purchasing group that consummates the Change-in-Control transaction. You shall be deemed "part of a purchasing group" for purposes of the preceding sentence if you
are an equity participant in the purchasing company or group (except for: (i) passive ownership of less than three percent (3%) of the stock or other equity of the purchasing company; or
(ii) ownership of equity participation in the purchasing company or group which is otherwise not significant, as determined prior to the Change in Control by a majority of the nonemployee
continuing Directors). 

	b.
	"Qualifying
Termination" means: (i) an involuntary termination of your employment by the Company for reasons other than death, permanent disability, or Cause, or (ii) a
voluntary termination by you for Good Reason pursuant to a written notice of termination delivered to the Company; provided that, if upon receiving such notice of termination, the Company requests
that you remain an employee for a period ending no later than six (6) months following the date of the Change in Control (the "Transition Employment Period") with compensation and benefits
equal to or greater than your compensation and benefits immediately before the Qualifying Termination (or, if more favorable to you, immediately before the Change in Control), you will not be deemed
to have a Qualifying Termination unless you remain employed throughout the Transition Period or your employment earlier terminates due to death, disability or involuntary termination by the
Corporation for reason other than Cause.

	c.
	"Cause"
means: (i) your willful failure to substantially perform your duties with the Company (other than any such failure resulting from permanent disability or occurring after
you have notified the Company in writing of your termination for Good Reason, but, in the latter case, only if the Company has not requested a Transition Employment Period for you), (ii) your
material act of dishonesty, fraud or embezzlement against the Company, unauthorized disclosure of confidential information or trade secrets of any of the Company or an affiliate (whether or not in
violation of any confidentiality agreement) or other willful conduct that is demonstrably injurious to the Company, monetarily or otherwise; or (iii) your having been convicted of a felony. No
act, or failure to act, on your part will be deemed "willful" unless done, or omitted to be done, by you not in good faith and without reasonable belief that the action or omission was in the best
interests of the Company.

	d.
	"Good
Reason" shall mean, without your express written consent, the occurrence of any one or more of the following:

	(i)
	The
assignment of you to duties materially inconsistent with your authorities, duties, responsibilities as an employee of the Company, or a material
reduction in the nature or status of your authorities, duties, or responsibilities from those in effect immediately preceding the Change in Control; 

2

 

	(ii)
	The
Company's requiring you to be based at a location which is at least fifty (50) miles further from your current primary residence than is
such residence from the Company's current headquarters, except for required travel on the Company's business to an extent substantially consistent with your business obligations as of the Effective
Date;

	(iii)
	A
material reduction in your Base Salary or bonus opportunity as in effect on the Effective Date of the Change in Control or as the same shall be
increased from time to time; 

	(iv)
	A
material reduction in your level of participation in any of the Company's short- and/or long-term incentive compensation plans, or
employee benefit or retirement plans, policies, practices, or arrangements in which you participate immediately preceding the Change in Control; provided, however, that reductions in the levels of
participation in any such plans shall not be deemed to be "Good Reason" if your reduced level of participation in each such program remains substantially consistent with the average level of
participation of other employees who have positions commensurate with your position. Long-term incentive plans shall mean the Chiron Executive Long-Term Incentive Plan, the
1991 Stock Option Plan, and any other similar plans instituted by the Company. 

        However,
the occurrence of an event set forth in (i) through (iv) above shall not constitute Good Reason if the Company has cured such event within fifteen (15) days
of receipt of written notice from you that such event has occurred and constitutes Good Reason. 

        Except
for the foregoing change of the Agreement applicable to your Share Rights, no other terms or conditions of your Share Rights have been modified as a result of the amendment, and
those other terms and conditions will continue in full force and effect. Please attach a copy of this letter agreement to your original Agreement so that you will have a complete record of all the
terms applicable to your Share Rights. 

        The
amendment was effective as of February 16, 2001. We hope that you find this amendment a valuable addition to your equity package. Should you have any questions concerning the
amendment, please direct them to the undersigned. 

	 	 	Very truly yours,
 Chiron Corporation
	

 	
 	

 	
 	

 
	 	 	 	 	 
	 	 	By:	 	

	

 	
 	

Title:	
 	

3

 
EXHIBIT A  

	Name
	 	Date of Grant
	 	Total Number of

Restricted Share

Rights

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Exhibit 10.515

Special Executive Form  

 
  CHIRON CORPORATION.
                            , 2002
  
  

Dear
Stock Option Plan Participant: 

        I
am pleased to inform you that the Compensation Committee of the Board of Directors recently approved an amendment to each of your outstanding stock options listed on Exhibit A
(the "Option") to provide you with greater protection in the event of certain corporate transactions. 

        The
amendment is set forth in detail below. In general terms, the amendment does the following: 

        First,
the amendment provides that your Option will immediately vest upon a Qualifying Termination of your employment that occurs within twenty-four (24) months after
a Change in Control. (See below for definitions.) 

        Second,
the amendment provides that your Option will vest immediately before certain corporate transactions if your Option will not continue or be assumed by the successor corporation or
replaced with a comparable option. Those transactions generally include a sale or disposition of all or substantially all of the assets of the Corporation, a merger or consolidation with another
entity or a reorganization or liquidation of the Corporation. Before the amendment, this protection was not available for a stock acquisition or reorganization involving less than substantially all of
the Corporation's capital stock. 

        Accordingly,
Section C of your stock option agreement applicable to your Option is hereby amended in its entirety to read as follows: 

C.    Change In Control.  

        1. Failure to Assume. If the Corporation or its stockholders enter into an agreement to dispose of all or
substantially all of the assets of the Corporation, enter into an agreement to merge or consolidate with another entity or enter into a plan of reorganization or liquidation, then this Option, to the
extent not previously exercised or terminated, may be exercised, immediately before the consummation of such transaction with respect to all the shares of Common Stock purchasable under this Option,
unless this Option will be either continued or assumed by the successor entity or its parent or replaced with a comparable option to purchase equity interests of the successor entity or parent
thereof. The Committee will determine such comparability, and its determination will be final, binding and conclusive. Upon consummation of such a transaction, this Option, whether or not accelerated,
will terminate and cease to be exercisable, unless continued or assumed by the successor entity or parent thereof. 

        2.
Certain Terminations Following a Change in Control. If there is a Change in Control of the Corporation pursuant to which the
exercisability of the Option does not accelerate in full pursuant to 1. above and within twenty-four (24) calendar months thereafter there is a Qualifying Termination of Optionee's
employment, then this Option will become immediately exercisable for all of the Option Shares then subject to this Option. For this purpose, the following definitions apply: 

        a.    A
"Change in Control" of the Corporation shall be deemed to have occurred as of the first day that any one or more of the following conditions is satisfied and regulatory
approval has been granted if necessary: 

        i.      The
"beneficial ownership" (as defined in Rule 13d-3 under the Securities Exchange Act of 1934) of securities representing more than thirty percent
(30%) of the combined voting power of all securities of the Corporation is acquired, directly or indirectly, by a Person (other than the Corporation, any trustee or other fiduciary holding securities
under an employee benefit plan of the Corporation or an affiliate thereof, or any corporation owned, directly or 

 

indirectly, by the stockholders of the Corporation in substantially the same proportions as their ownership of stock of the Corporation); or 

        ii.    During
any period of two (2) consecutive years, individuals who at the beginning of such period constitute the Board of Directors of the Corporation and any new
director (other than a director designated by a person who has entered into an agreement with the Corporation to effect a transaction described in i. above) whose election by the Board of Directors or
nomination for election by the Corporation's stockholders was approved by a vote of at least two-thirds of the directors then still in office who either were directors at the beginning of
the period or whose election or nomination for election was previously so approved, cease for any reason to constitute a majority thereof; or 

        iii.    The
stockholders of the Corporation approve a definitive agreement to sell or otherwise dispose of all or substantially all of its assets, or adopt a plan for
liquidation, provided that such sale or liquidation has not been abandoned. 

Notwithstanding
anything else contained herein to the contrary, in no event shall a Change in Control be deemed to have occurred by reason of a purchase, or series of purchases of Corporation stock by
Novartis or its successor such that the acquiring entity remains subject to the terms of that certain Governance Agreement dated as of January 5, 1995, as amended through December 9,
2000, provided the acquiring entity's Corporation stock holdings, direct or indirect, in the aggregate, represent less than seventy-nine and nine-tenths of a percent (79.9%) of
the combined voting power of all outstanding Corporation securities. In addition, in no event shall a Change in Control be deemed to have occurred, with respect to the Optionee, if the Optionee is
part of a purchasing group that consummates the Change-in-Control transaction. The Optionee shall be deemed "part of a purchasing group" for purposes of the preceding sentence
if the Optionee is an equity participant in the purchasing company or group (except for: (i) passive ownership of less than three percent (3%) of the stock or other equity of the purchasing
company; or (ii) ownership of equity participation in the purchasing company or group which is otherwise not significant, as determined prior to the Change in Control by a majority of the
nonemployee continuing Directors). 

        b.    "Qualifying
Termination" means any of the following events: 

        i.      An
involuntary termination of the Optionee's employment by the Corporation for reasons other than Cause, death or disability; 

        ii.    A
voluntary termination by the Optionee for Good Reason pursuant to a written notice of termination delivered to the Corporation by the Optionee; provided that, if upon
receiving such notice of termination, the Corporation requests that the Optionee remain an employee for a period ending no later than six (6) months following the date of the Change in Control
(the "Transition Employment Period") with compensation and benefits equal to or greater than the Optionee's compensation and benefits immediately before the Qualifying Termination (or, if more
favorable to the Optionee, immediately before the Change in Control), the Optionee will not be deemed to have a Qualifying Termination unless he or she remains employed throughout the Transition
Period or Executive's employment earlier terminates due to death, disability or involuntary termination by the Corporation for reason other than Cause. 

        c.    "Cause"
means: 

        i.      The
Optionee's willful and continued failure to substantially perform his/her duties with the Corporation (other than any such failure resulting from disability or
occurring after the Optionee has notified the Corporation in writing of his or her termination for Good Reason, but, in the latter case, only if the Corporation has not requested a Transition
Employment Period for the Optionee), after a written demand for substantial performance is 

2

 

delivered to the Optionee that specifically identifies the manner in which the Corporation believes that the Optionee has willfully failed to substantially perform his/her duties, and after the
Optionee has failed to resume substantial performance of his/her duties on a continuous basis within thirty (30) calendar days of receiving such demand; 

        ii.    The
Optionee's material act of dishonesty, fraud or embezzlement against the Corporation, unauthorized disclosure of confidential information or trade secrets of any of
the Corporation or an affiliate (whether or not in violation of any confidentiality agreement) or other willful conduct (other than conduct covered under (i) above) that is demonstrably
injurious to the Corporation, monetarily or otherwise; or 

        iii.    The
Optionee's having been convicted of a felony. 

For
purposes of this subparagraph, no act, or failure to act, on the Optionee's part shall be deemed "willful" unless done, or omitted to be done, by the Optionee not in good faith and without
reasonable belief that the action or omission was in the best interests of the Corporation. 

        d.    "Good
Reason" shall mean, without the Optionee's express written consent, the occurrence of any one or more of the following: 

        i.      The
assignment of the Optionee to duties materially inconsistent with the Optionee's authorities, duties, responsibilities as an employee of the Corporation, or a
material reduction in the nature or status of the Optionee's authorities, duties, or responsibilities than those in effect immediately preceding the Change in Control; 

        ii.    The
Corporation's requiring the Optionee to be based at a location which is at least fifty (50) miles further from the Optionee's current primary residence than
is such residence from the Corporation's
current headquarters, except for required travel on the Corporation's business to an extent substantially consistent with the Optionee's business obligations as of the Effective Date; 

        iii.    A
material reduction in the Optionee's Base Salary or bonus opportunity as in effect on the Effective Date or as the same shall be increased from time to time; 

        iv.    A
material reduction in the Optionee's level of participation in any of the Corporation's short-and/or long-term incentive compensation plans, or employee
benefit or retirement plans, policies, practices, or arrangements in which the Optionee participates immediately preceding the Change in Control; provided, however, that reductions in the levels of
participation in any such plans shall not be deemed to be "Good Reason" if the Optionee's reduced level of participation in each such program remains substantially consistent with the average level of
participation of other employees who have positions commensurate with the Optionee's position. Long-term incentive plans shall mean the Chiron Executive Long-Term Incentive
Plan, the 1991 Stock Option Plan, and any other similar plans instituted by the Corporation. 

However,
the occurrence of an event set forth in (i) through (iv) above shall not constitute Good Reason if the Corporation has cured such event within fifteen (15) days of
receipt of written notice from the Optionee that such event has occurred and constitutes Good Reason. 

        3.
Right to Effect Transactions. This Agreement does not in any way affect the right of the Corporation to adjust, reclassify, reorganize
or otherwise change its capital or business structure or to merge, consolidate, dissolve, liquidate or sell or transfer all or any part of its business or assets. 

        Except
for the foregoing change to Section C of the option agreement applicable to your Option, no other terms or conditions of your Option or the underlying option shares have
been modified as a result of the amendment, and those other terms and conditions will continue in full force and effect. 

3

 

Please attach a copy of this letter agreement to your stock option agreement so that you will have a complete record of all the terms applicable to your Option. 

        The
amendment was effective as of February 16, 2001. We hope that you find this amendment a valuable addition to your equity package. Should you have any questions concerning the
amendment, please direct them to the undersigned. 

	 	 	Very truly yours,
	 	 	 	 	 
	 	 	Chiron Corporation
	

 	
 	

 	
 	

 
	 	 	 	 	 
	 	 	By:	 	

	

 	
 	

Title:	
 	

4

  

 
 

EXHIBIT A    
  

	Name
 
	 	Date of Grant
	 	Exercise Price

Per Share
	 	Total Number of

Option Shares Granted
	 	Total Number of

Option Shares

Outstanding

	            	 	    	 	    	 	    	 	    

5

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CHIRON CORPORATION. , 2002

EXHIBIT A

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