EX-10.4




 EXHIBIT 10.4 

QUIDELORTHO CORPORATION 

AMENDED AND RESTATED 1983 EMPLOYEE STOCK PURCHASE PLAN 

(Amended and Restated Effective: May 16, 2022) 

The following constitute the provisions of the 1983 Employee Stock Purchase Plan (herein called the “Plan”) of QuidelOrtho Corporation, a Delaware
corporation (herein called the “Company”). 
 1. Purpose. The purpose of the Plan is to provide employees of the Company and
its Designated Subsidiaries with an opportunity to purchase Common Stock of the Company through accumulated payroll deductions. It is the intention of the Company to have the Plan qualify as an “Employee Stock Purchase Plan” under
Section 423 of the Internal Revenue Code of 1986, as amended. The provisions of the Plan shall, accordingly, be construed so as to extend and limit participation in a manner consistent with the requirements of that section of the Code. 

2. Definitions. 
  

	 	(a)	 “Board” shall mean the Board of Directors of the Company. 



 

	 	(b)	 “Code” shall mean the Internal Revenue Code of 1986, as amended. 



 

	 	(c)	 “Common Stock” shall mean the Common Stock, no par value, of the Company.



  

	 	(d)	 “Company” shall mean QuidelOrtho Corporation, a Delaware corporation. 



 

	 	(e)	 “Compensation” shall mean all regular straight time earnings, payments or overtime, shift
premium, incentive compensation, incentive payments, bonuses and commissions (except to the extent that the exclusion of any such items for all participants is specifically directed by the Board or its committee). 



 

	 	(f)	 “Designated Subsidiaries” shall mean the Subsidiaries which have been designated by the Board
from time to time in its sole discretion as eligible to participate in the Plan. 


  

	 	(g)	 “Employee” shall mean any person, including an officer, who is customarily employed for at
least twenty (20) hours per week and more than five (5) months in a calendar year by the Company or one of its Designated Subsidiaries. 


  

	 	(h)	 “Exercise Date” shall mean the last day of each offering period of the Plan.



  

	 	(i)	 “Offering Date” shall mean the first day of each offering period of the Plan.



  

	 	(j)	 “Plan” shall mean this Employee Stock Purchase Plan. 



 

	 	(k)	 “Subsidiary” shall mean a corporation, domestic or foreign, of which not less than 50% of the
voting shares are held by the Company or a Subsidiary, whether or not such corporation flow exists or is hereafter organized or acquired by the Company or a Subsidiary. 



3. Eligibility. 
 (a) Any Employee as defined in
paragraph 2 who shall be employed by the Company on the date his participation in the Plan is effective shall be eligible to participate in the Plan, subject to limitations imposed by Section 423(b) of the Code. 

(b) Any provisions of the Plan to the contrary notwithstanding, no Employee shall be granted an option under the Plan (i) if, immediately after the
grant, such Employee (or any other person whose stock would be attributed to such Employee pursuant to Section 425(d) of the Code) would own stock and/or hold outstanding options to purchase stock possessing five percent (5%) or more of the
total combined voting power or value of all classes of stock of the Company or of any subsidiary of the Company, or (ii) which permits his rights to purchase stock under all employee stock purchase plans of the Company and its subsidiaries to
accrue at a rate which exceeds Twenty Five Thousand Dollars ($25,000) of fair market value of such stock (determined at the time such option is granted) for each calendar year in which such option is outstanding at any time. 

4. Offering Periods. The Plan shall be implemented by one offering during each six month period of the Plan, commencing on or about, and
continuing thereafter until terminated in accordance with paragraph 19 hereof. The Board of Directors of the Company shall have the power to change the duration of offering periods with respect to future offerings without stockholder approval if
such change is announced at least fifteen (15) days prior to the scheduled beginning at the first offering period to be affected. 











 5. Participation. 

(a) An eligible Employee may become a participant in the Plan by completing a subscription agreement authorizing payroll deduction on the form provided by the
Company and filing it with the Company’s payroll office prior to the applicable Offering Date, unless a later time for filing the subscription agreement is set by the Board for all eligible employees with respect to a given offering. 

(b) Payroll deductions for a participant shall commence on the first payroll following the Offering Date and shall end on the Exercise Date of the offering to
which such authorization is applicable, unless sooner terminated by the participant as provided in paragraph 10. 
 6. Payroll Deductions.

 (a) At the time a participant files his subscription agreement, he shall elect to have payroll deductions made on each payday during the offering period
in an amount not exceeding ten percent (10%) of the Compensation which he received on the payday immediately preceding the Offering Date, and the aggregate of such payroll deductions during the offering period shall not exceed ten percent (10%) of
his aggregate Compensation during said offering period. 
 (b) All payroll deductions made by a participant shall be credited to his account under the Plan.
A participant may not make any additional payments into such account. 
 (c) A participant may discontinue his participation in the Plan as provided in
paragraph 10, or may lower, but not increase, the rate of his payroll deductions during the offering period by completing or filing with the Company a new authorization for payroll deduction. The change in rate shall be effective fifteen
(15) days following the Company’s receipt of the new authorization. 
 7. Grant of Option.  

(a) On the Offering Date of each six month offering period, each eligible Employee participating in the Plan shall be granted an option to purchase (at the per
share option price) up to a number of shares of the Company’s Common Stock determined by dividing such Employee’s payroll deductions to be accumulated during such offering period (not to exceed an amount equal to ten percent (10%) of his
Compensation as of the date of the commencement of the applicable offering period) by eighty-five percent (85%) of the fair market value of a share of the Company’s Common Stock on the Offering Date, subject to the limitations set forth in
Section 3(b) and 12 hereof. Fair market value of a share of the Company’s Common Stock shall be determined as provided in Section 7(b) herein. Notwithstanding the foregoing, no employee shall be granted an option to purchase more than
5,000 shares of the Company’s Common Stock during any six-month offering period. 
 (b) The option price per
share of the shares offered in a given offering period shall be the lower of: (i) 85% of the fair market value of a share of the Common Stock of the Company on the Offering Date; or (ii) 85% of the fair market value of a share of the Common Stock of
the Company on the Exercise Date. The fair market value of the Company’s Common Stock on a given date shall be the mean of the reported bid and asked prices for that date except that the fair market value on the Offering Date of the initial
offering period shall be the initial public offering price. 
 8. Exercise of Option. Unless a participant withdraws from the Plan as provided
in paragraph 10, his option for the purchase of shares will be exercised automatically on the Exercise Date of the offering period, and the maximum number of full shares subject to option will be purchased for him at the applicable option price with
the accumulated payroll deductions in his account. If the total amount of payroll deductions for a participant during the offering period exceeds the purchase price of such shares as determined in Section 7(a), such excess amount will be
refunded to the participant. 
 9. Delivery. As promptly as practicable after the Exercise Date of each offering, the Company shall arrange
the delivery to each participant, as appropriate, of a certificate representing the shares purchased upon exercise of his option. 











 Any cash remaining to the credit of a participant’s account under the Plan after a purchase by him of
shares at the termination of each offering period, or which is insufficient to purchase a full share of Common Stock of the Company, shall be returned to said participant. 

10. Withdrawal; Termination of Employment. 
 (a) A
participant may withdraw all but not less than all the payroll deductions credited to his account under the Plan up to one week prior to the Exercise Date of the offering period by giving written notice to the Company. All of the participant’s
payroll deductions credited to his account will be paid to him promptly after receipt of his notice of withdrawal and his option for the current period will be automatically terminated, and no further payroll deductions for the purchase of shares
will be made during the offering period. 
 (b) Upon termination of the participant’s employment prior to the Exercise Date of the offering period for
any reason, including retirement or death, the payroll deductions credited to his account will be returned to him or, in the case of his death, to the person or persons entitled thereto under paragraph 14, and his option will be automatically
terminated. 
 (c) in the event an Employee fails to remain in the continuous employ of the Company for at least twenty (20) hours per week during the
offering period in which the employee is a participant, he will be deemed to have elected to withdraw from the Plan and the payroll deductions credited to his account will be returned to him and his option terminated. 

(d) A participant’s withdrawal from an offering will not have any effect upon his eligibility to participate in a succeeding offering or in any similar
plan which may hereafter be adopted by the Company. 
 11. Interest. No interest shall accrue on the payroll deductions of a
participant in the Plan. 
 12. Stock. 
 (a) The
maximum number of shares of the Company’s Common Stock that shall be made available for sale under the Plan shall be 2,250,000 shares, subject to adjustment upon changes in capitalization of the Company as provided in paragraph 18. If the total
number of shares which would otherwise be subject to options granted pursuant to Section 7(a) hereof on the Offering Date of an offering period exceeds the number of shares then available under the Plan (after deduction of all shares for which
options have been exercised or are then outstanding), the Company shall make a pro rata allocation of the shares remaining available for option grant in as uniform a manner as shall be practicable and as it shall determine to be equitable. In such
event, the Company shall give written notice of such reduction of the number of shares subject to the option to each Employee affected thereby and shall similarly reduce the rate of payroll deductions, if necessary. 

(b) The participant will have no interest or voting right in shares covered by his option until such option has been exercised. 

(c) Shares to be delivered to a participant under the Plan will be registered in the name of the participant or in the name of the participant and his spouse.

 13. Administration. The Plan shall be administered by the Board of Directors of the Company or a committee appointed by the Board.
The administration, interpretation or application of the Plan by the Board or its committee shall be final, conclusive and binding upon all participants. Members of the Board who are eligible Employees are permitted to participate in the Plan,
provided that: 
 (a) Members of the Board who are eligible to participate in the Plan may not vote on any matter affecting the administration of the Plan
or the grant of any option pursuant to the Plan. 
 (b) If a committee is established to administer the Plan, no member of the Board who is eligible to
participate in the Plan may be a member of the committee. 











 14. Designation of Beneficiary. 

(a) A participant may file a written designation of a beneficiary who is to receive any shares and cash, if any, from the participant’s account under the
Plan in the event of such participant’s death subsequent to the end of the offering period but prior to delivery to him of such shares and cash. In addition, a participant may file a written designation of a beneficiary who is to receive any
cash from the participant’s account under the Plan in the event of such participant’s death prior to the Exercise Date of the offering period. 

(b) Such designation of beneficiary may be changed by the participant at any time by written notice. In the event of the death of a participant and in the
absence of a beneficiary validly designated under the Plan who is living at the time of such participant’s death, the Company shall deliver such shares and/or cash to the executor or administrator of the estate of the participant, or if no such
executor or administrator has been appointed (to the knowledge of the Company), the Company, in its discretion, may deliver such shares and/or cash to the spouse or to any one or more dependents or relatives of the participant, or if no spouse,
dependent or relative is known to the Company, then to such other person as the Company may designate. 
 15. Transferability. Neither
payroll deductions credited to a participant’s account nor any rights with regard to the exercise of an option or to receive shares under the Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by will,
the laws of descent and distribution or as provided in paragraph 14 hereof) by the participant. Any such attempt at assignment, transfer, pledge or other disposition shall be without effect, except that the Company may treat such act as an election
to withdraw funds in accordance with paragraph 10. 
 16. Use of Funds. All payroll deductions received or held by the Company under
the Plan may be used by the Company for any corporate purpose, and the Company shall not be obligated to segregate such payroll deductions. 
 17.
Reports. Individual accounts will be maintained for each participant in the Plan. Statements of account will be given to participating Employees semi-annually promptly following the Exercise Date, which statements will set forth
the amounts of payroll deductions, the per share purchase price, the number of shares purchased and the remaining cash balance, if any. 
 18.
Adjustments Upon Changes in Capitalization. Subject to any required action by the stockholders of the Company, the number of shares of Common Stock covered by each option under the Plan which has not yet been exercised and the
number of shares of Common Stock which have been authorized for issuance under the Plan but have not yet been placed under option (collectively, the “Reserves”), as well as the price per share of Common Stock covered by each option under
the Plan which has not yet been exercised, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a stock split or the payment of a stock dividend (but only on the Common Stock)
or any other increase or decrease in the number of shares of Common Stock effected without receipt of consideration by the Company; provided, however, that conversion of any convertible securities of the Company shall not be deemed to have been
“effected without receipt of consideration”. Such adjustment shall be made by the Board, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issue by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock subject to an option. 

The Board may, if it so determines in the exercise of its sole discretion, also make provision for adjusting the Reserves, as well as the price per share of
Common Stock covered by each outstanding option, in the event that the Company effects one or more reorganizations, recapitalizations, rights offerings or other increases or reductions of shares of its outstanding Common Stock, and in the event of
the Company being consolidated with or merged into any other corporation. 
 19. Amendment or Termination. The Board of Directors of
the Company may at any time terminate or amend the Plan. No such termination can affect options previously granted, nor may an amendment make any change in any option theretofore granted which adversely affects the rights of any participant, nor may
an amendment be made without prior approval of the stockholders of the Company if such amendment would: 
 (a) increase the number of shares that may be
issued under the Plan; 











 (b) Permit payroll deductions at a rate in excess of ten percent (10%) of the participant’s
Compensation; 
 (c) Modify the requirements concerning which employees (or class of employees) are eligible for participation in the Plan; or 

(d) Materially increase the benefits which may accrue to participants under the Plan. 

20. Notices. All notices or other communications by a participant to the Company under or in connection with the Plan shall be deemed to
have been duly given when received in the form specified by the Company at the location, or by the person, designated by the Company for the receipt thereof. 

21. Stockholder Approval. Continuance of the Plan shall be subject to approval by the stockholders of the Company within twelve months
before or after the date the Plan is adopted. If such share- holder approval is obtained at a duly held stockholders’ meeting, it may be obtained by the affirmative vote of the holders of a majority of the outstanding shares of the Company
present or represented and entitled to vote thereon, which approval shall be: 
 (a) (1) solicited substantially in accordance with Section 14(a)
of the Securities Act of 1934, as amended (the “Act”) and the rules and regulations promulgated thereunder, or (2) solicited after the Company has furnished in writing to the holders entitled to vote substantially the same information
concerning the Plan as that which would be required by the rules and regulations in effect under Section 14(a) of the Act at the time such information is furnished; and 

(b) obtained at or prior to the first annual meeting of stockholders held subsequent to the first registration of Common Stock under Section 12 of the
Act. 
 In the case of approval by written consent, it must be obtained by the unanimous written consent of all stockholders of the Company. 

22. Conditions Upon Issuance of Shares. Shares shall not be issued with respect to an option unless the exercise of such option and the
issuance and delivery of such shares pursuant thereto shall comply with all applicable provisions of law, domestic or foreign, including, without limitation, the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended,
the rules and regulations promulgated thereunder, and the requirements of any stock exchange upon which the shares may then be listed, and shall be further subject to the approval of counsel for the Company with respect to such compliance. 

As a condition to the exercise of an option, the Company may require the person exercising such option to represent and war rant at the time of any such
exercise that the shares are being purchased only for investment and without any present intention to sell or distribute such shares if, in the opinion of counsel for the Company, such a representation is required by any of the aforementioned
applicable provisions of law.