1991 Incentive Stock Option Plan



 Exhibit 10.4 
 CSP INC. 
 1991 Stock Option Plan 
 SECTION 1. Purpose 
 This 1991 Stock Option Plan (the
“Plan”) is intended to attract and retain highly qualified and competent employees and directors, to serve as a performance incentive for officers and employees of CSP Inc., a Massachusetts corporation (the “Company”), or its
Subsidiaries (as hereinafter defined) and for certain other individuals providing services to or acting as directors of the Company or its Subsidiaries, to encourage the persons to whom options are granted (a “Grantee” or
“Grantees”) to acquire or increase a proprietary interest in the success of the Company and to maintain and enhance the Company’s long-term performance and profitability. The Company intends that this purpose will be effected by the
granting of incentive stock options (“Incentive Options”) as defined in Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”) and other stock options (“Non-Statutory Options”) under the Plan.
The term “Subsidiaries” means any corporations in which stock possessing 50% or more of the total combined voting power of all classes of stock of any such corporation or corporations is owned directly or indirectly by the Company.

 SECTION 2. Options to be Granted and Administration 
  

	2.1	Options to be Granted. Options granted under the Plan may be either Incentive Options or Non-Statutory Options. 

  

	2.2	Administration by and Powers of the Committee. This Plan shall be administered by a committee ( (the Committee”) consisting of at least two members of the Company’s
board of directors ( the “Board”). It is the intention of the Company that the Plan shall be administered by “disinterested persons” within the meaning of Rule 16b-3 under the Securities Exchange Act of 1934 (the “Exchange
Act”), but the authority and validity of any act taken or not taken by the Committee shall not be affected if any person administering the Plan is not a disinterested person. Except as specifically reserved to the Board under the terms of the
Plan, and subject to Section 4.2 hereof, the Committee shall have full and final authority to operate, manage and administer the Plan on behalf of the Company. This authority shall include, but not be limited to: (i) the power to grant,
modify and amend options conditionally or unconditionally; (ii) the power to prescribe the form or forms of the instruments evidencing options granted under this Plan; (iii) the power to interpret the Plan; (iv) the power to provide
regulations for interpretation, management and administration of the Plan; (v) the power to delegate to other persons the responsibility for performing ministerial acts in furtherance of the Plan’s purpose; and (vi) the power to
engage the services of persons or organizations in furtherance of the Plan’s purpose, including but not limited to banks, insurance companies, brokerage firms and consultants. 

  

	    	 In addition, as to each options, except for options granted pursuant to Section 4.2, the Committee shall have full and final authority in its discretion:
(i) to determine the number of shares subject to each option; (ii) to determine the time or times at which options will be granted; (iii) to determine the price for the shares subject to each option, which price shall be subject to
the applicable requirements, if any, of Section 5(c) hereof; (iv) to determine the duration of the exercise period of each option, which shall not exceed the limitations 











	 	 
specified in Section 5(a); and (v) to determine the time or times when each option shall become exercisable. The Committee may, in its sole
discretion and on a case by case basis, accelerate the schedule of the time or times when options granted hereunder may be exercised. 


  

	    	No member of the Committee shall be liable for any action or determination made in good faith with respect to the Plan or any option granted hereunder. 

  

	2.3	Appointment and Proceedings of Committee. The Board may from time to time appoint members of the Committee in substitution for or in addition to members previously appointed,
and subject to Section 2.2 hereof may fill vacancies, however caused, in the Committee. The Committee shall select one of its members as its chairman and shall hold its meetings at such times and places as it shall deem advisable. A majority of
its members shall constitute a quorum, and all actions of the Committee shall require the affirmative vote of a majority of its members. Any action may be taken by written instrument signed by all of the members, and any action so taken shall be as
fully effective as if it had been taken by a vote of a majority of the members at a meeting duly called and held. 

 SECTION 3. Stock 

  

	3.1	Shares Subject to Plan. The stock subject to options granted under the Plan shall be shares of the Company’s common stock, $.01 par value (“Common Stock”),
either authorized but unissued or held in treasury. The total number of shares that may be issued pursuant to options granted under the Plan shall not exceed an aggregate of 250,000 shares of Common Stock, of which not more than 20,000 shares may be
issued pursuant to Section 4.2 hereof. Such numbers of shares shall be subject to adjustment in accordance with Section 7. 

  

	3.2	Lapsed or Unexercised Options. Whenever any outstanding option under the Plan expires, is cancelled or is otherwise terminated (other than by exercise), the shares of Common
Stock allocable to the unexercised portion of such option shall be restored to the Plan and shall again become available for the grant of other options under the Plan. 

 SECTION 4. Eligibility 
  

	4.1	Eligible Grantees. Incentive Options may be granted only to officers and other employees of the Company or its Subsidiaries, including members of the Board who are also
employees of the Company or a Subsidiary. Non-Statutory Options may be granted to officers or other employees of the Company or it Subsidiaries, including members of the Board or the board of directors of any Subsidiary, and to certain other
individuals providing services to the Company or its Subsidiaries. Non-Statutory Options may be granted to members of the Board who are not employees of the Company or a Subsidiary (“Outside Directors”) only as provided in Section 4.2
hereof. 

  

	4.2	 Non-Discretionary Option Grants to Outside Directors. Ay other provision of this Plan to the contrary notwithstanding, Outside Directors shall not be
eligible to receive options under the Plan except pursuant to this Section 4.2. On the last business day of January in each year (the “Grant Date”), each Outside Director shall without any action of the Committee be granted a
Non-Statutory Option to purchase 1,000 shares of the Common Stock of the Company. Options shall be granted pursuant to this Section 4.2 only to persons who are serving as Outside Directors on the Grant Date. The 1,000-share grant referred to in
this Section shall be subject to adjustment in accordance with Section 7 hereof. The purchase 











	 	 
price per share of the Common Stock under each option granted pursuant to this Section shall be equal to the fair market value of the Common Stock on the
date the option is granted. Each such option shall expire on the third anniversary of the date of grant and shall not be exercisable until after the expiration of six months following the date of grant, becoming fully exercisable at that time.



  

	4.3	Limitations on 10% Stockholders. No Incentive Option shall be granted to an individual who, at the time the Incentive Option is Granted, owns (including ownership attributed
pursuant to Section 424 of the Code) more than 10% of the total combined voting power of all classes of stock of the Company or any parent or Subsidiary of the Company (a “greater-than-10% stockholder”), unless such Incentive Option
provides that (i) the purchase price per share shall not be less than 110% of the fair market value of the Common Stock at the time such Incentive Option is granted, and (ii) such Incentive Option shall not be exercisable to any extent
after the expiration of five years from the date it is granted. 

  

	4.4	Limitation on Exercisable Options. The aggregate fair market value (determined at the time the Incentive Option is granted) of the Common Stock with respect to which
Incentive Options are exercisable for the first time by any person during any calendar year under the Plan and under any other option plan of the Company (or a parent or subsidiary as defined in Section 424 of the Code) shall not exceed
$100,000. Any option granted in excess of the foregoing limitation shall be specifically designated as being a Non-Statutory Option. 

 Section 5. Agreements Evidencing Stock Options 
 Each option agreement (each, a “Plan agreement”) shall contain such
provisions as the Committee shall from time to time deem appropriate. Plan agreements need not be identical, but each such agreement by appropriate language shall include the substance of all of the following provisions: 
  

	 	(a)	Expiration. Subject to Section 4.2 hereof, notwithstanding any other provision of the Plan or of any Plan agreement, each option shall expire on the date specified in the Plan
agreement, which date shall not be later than the tenth anniversary of the date on which the option was granted (fifth anniversary in the case of an Incentive Option granted to a greater-than-10% stockholder). 

  

	 	(b)	Exercise. Subject to Sections 4.2 and 6.3 hereof, each option shall be exercisable in full or in installments (which need not be equal) and at such times as designated by the
Committee. To the extent not exercised, installments shall accumulate and be exercisable, in whole or in part, at any time after becoming exercisable, but not later than the date the option expires. 

  

	 	(c)	 Purchase Price. The purchase price per share of the Common Stock under each Incentive Option shall be not less than the fair market value of the Common Stock on the
date the option is granted (110% of the fair market value in the case of a greater-than-10% stockholder). Except as provided in Section 4.2 hereof, the price at which shares may be purchased pursuant to Non-Statutory Options shall be specified
by the Committee at the time the option is granted, and may be less than, equal to or greater than the fair market value of the shares of Common Stock on the date such Non-Statutory Option is granted, but shall not be less than the par value of
shares of Common Stock. For the purpose of the Plan, the fair market value of the Common Stock shall be the closing price per share on the date of grant of the option as reported by a nationally recognized stock exchange, 











	 	 
or, if the Common Stock is not listed on such an exchange, as reported by the NASDAQ National Market System, or, if the Common Stock is not quoted on the
NASDAQ National Market System, the fair market value as determined by the Committee. 


  

	 	(d)	Transferability of Options. Options granted under the Plan and the rights and privileges conferred thereby may not be transferred, assigned, pledged or hypothecated in any manner
(whether by option of law or otherwise) other than by will or by applicable laws of descent and distribution, and shall not be subject to execution, attachments or similar process. Upon any attempt so to transfer, assign, pledge, hypothecate or
otherwise dispose of any option under the Plan or any right or privilege conferred hereby, contrary to the provisions of the Plan, or (if the Committee shall so determine) upon any levy or any attachment or similar process upon the rights and
privileges conferred hereby, such option shall thereupon terminate and become null and void. 

  

	 	(d)	Termination of Employment or Death of Grantee. Except as may be otherwise expressly provided in the terms and conditions of the Plan agreements, options granted hereunder shall
terminate on the earlier to occur of: 

  

	 	(i)	the date of expiration thereof; or 

  

	 	(ii)	other than in the cause of death of the Grantee or retirement in good standing of the Grantee from the employ of the Company for reasons of age or disability under the then
established rules of the Company, immediately upon termination of the employment or other relationship between the Company and the Grantee for cause as determined by the Committee, or 30 days after termination of the employment or other relationship
between the Company and the Grantee without cause. 

 An employment relationship between the Company and the Grantee shall be deemed to exist
during any period during which the Grantee is employed by the Company or by any Subsidiary. Whether an authorized leave of absence or absence on military government service shall constitute termination of the employment relationship between the
Company and the Grantee shall be determined by the Committee at the commencement thereof, and the Committee shall promptly notify the Grantee of such determination. 
 As used herein, “cause” shall mean (x) any material breach by the Grantee of any agreement to which the Grantee and the Company are both parties, (y) any act or omission to act by the Grantee which
may have a material and adverse effect on the Company’s business or on the Grantee’s ability to perform services for the Company, including, without limitation, the commission of any crime (other than ordinary traffic violations), or
(z) any material misconduct or material neglect of duties by the Grantee in connection with the business or affairs of the Company or any affiliate of the Company. 
 In the event of the death of a Grantee while in the employment or other relationship with the Company and before the date of expiration of an option held by such Grantee, such option shall terminate on the earlier of
such date of expiration or 180 days following the date of such death. After the death of the Grantee, the Grantee’s executors, administrators or any person or persons to whom his option may be transferred by will or by laws of descent and
distribution shall have the right, at any time prior to such termination, to exercise the option to the extent the Grantee was entitled to exercise such option immediately prior to the Grantee’s death. 







 If, before the date of expiration of the option, the Grantee shall be retired in good standing from the employ of the
Company for reasons of age or disability under the then established rules of the Company, the option shall terminate on the earlier of such date of expiration or 90 days after the date of such retirement. In the event of such retirement, the Grantee
shall have the right prior to the termination of such option to exercise the option to the extent to which the Grantee was entitled to exercise such option immediately prior to such retirement. 
  

	 	(f)	Rights of Grantees. No Grantee shall be deemed for any purpose to be the owner of any shares of Common Stock subject to any option unless and until (i) the option shall have
been exercised pursuant to the terms thereof and (ii) the Company shall have issued and delivered the shares to the Grantee. 

  

	 	(g)	Repurchase Right. The Committee may in its discretion provide upon the grant of any option hereunder that the Company shall have an option to repurchase, upon such terms and
conditions as determined by the Committee, all or any number of shares purchased upon exercise of such option. The repurchase price per share payable by the Company shall be such amount or be determined by such formula as is fixed by the Committee
at the time the option for the shares subject to repurchase is granted. In the event the Committee shall grant options subject to the Company’s repurchase option, the certificates representing the shares purchased pursuant to such option shall
carry a legend satisfactory to counsel for the Company referring to the Company’s repurchase option. 

  

	 	(h)	“Lockup” Agreement. The Committee may in its discretion specify upon granting an option that the Grantee shall agree for a period of time (not to exceed 180 days) from the
effective date of any registration of securities of the Company (upon request of the Company or the underwriters managing any underwritten offering of the Company’s securities), not to sell, make any short sale of, loan, grant any option for
the purchase of, or otherwise dispose of any shares issued pursuant to the exercise of such option, without the prior written consent of the Company or such underwriters, as the case may be. 

 SECTION 6. Method of Exercise and Payment 
  

	6.1	Notice of Exercise. Any option granted under the Plan may be exercised by the Grantee by delivering to the Company on any business day a written notice (the
“Notice”) specifying the number of shares of Common Stock with respect to which the Grantee then desires to exercise the option, specifying the address to which the certificates for such shares are to be mailed and accompanied by payment
for such shares. 

  

	6.2	Exercise of Options. Payment for the shares of Common Stock purchased pursuant to the exercise of an option shall be made either (i) in cash equal to the option price
for the number of shares specified in the Notice (the “Total Option Price”), or (ii) if authorized by the applicable Plan agreement, in shares of Common Stock having a fair market value equal to or less than the Total Option Price,
plus cash in an amount equal to or less than the Total Option Price, plus cash in an amount equal to the excess, if any, of the Total Option Price over the fair market value of such shares of Common Stock. For the purpose of the preceding sentence,
the fair market value of the shares of Common Stock so delivered to the Company shall be determined in the manner specified in Section 5(c) hereof. As promptly as practicable after receipt of such Notice and payment, the Company shall deliver
to the Grantee certificates for the number of shares with respect to which such option has been so exercised, issued in the Grantee’s name; provided, however, that such delivery shall be deemed effected for all purposes when the Company or a
stock transfer agent of the Company shall have deposited such certificates in the United States mail, addressed to the Grantee, at the address specified pursuant to Section 6.1. 









	6.3	Special Limits Affecting Section 16(b) Grantees. Options granted to a person who in the opinion of the Committee may be deemed to be a director or officer of the Company
within the meaning of Section 16(b) of the Exchange Act and the rules and regulations thereunder (a “Section 16(b) Grantee”) shall not be exercisable until after the expiration of six months following the date of grant. At least six
months shall elapse between the date an option is granted to a Section 16(b) Grantee and the date of disposition of the option (other than upon exercise) or the Common Stock subject to such option. 

 SECTION 7. Adjustment Upon Changes in Capitalization 
  

	7.1	No Effect of Options upon Certain Corporate Transactions. The existence of outstanding options shall not affect in any way the right or power of the Company or its
stockholders to make or authorize any or all adjustments, recapitalizations, reorganizations or other changes in the Company’s capital structure or its business, or any merger or consolidation of the Company, or any issue of Common Stock, or
any issue of bonds, debentures, preferred or prior preference stock ahead of one affecting the Common Stock or the rights thereof, or dissolution or liquidation of the Company, or any sale or transfer of all or any part of its assets or business, or
any other corporate act or proceeding, whether of a similar character or otherwise. 

  

	7.2	Stock Dividends, Recapitalizations, Etc. If the Company shall effect a subdivision or consolidation of shares or other capital readjustment, the payment of a stock dividend,
or other increase or reduction of the number of shares of the Common Stock outstanding, without receiving compensation therefore in money, services or property, then (i) the number, class and per share price of shares of stock subject to
outstanding options hereunder shall be appropriately adjusted in such a manner as to entitle a Grantee to receive upon exercise of an option, for the same aggregate cash consideration, the same total number and class of shares that the owner of an
equal number of outstanding shares of Common Stock would own as a result of the event requiring the adjustment; and (ii) the number and class of shares that may be issued under, and with respect to which options may be granted pursuant to, the
Plan shall be adjusted by substituting for the total number of shares of Common Stock then reserved for issuance under, and with respect to which options may be granted pursuant to, the Plan that number and class of shares of stock that the owner of
an equal number of outstanding shares of Common Stock would own as the result of the event requiring the adjustment. 

  

	7.3	Determination of Adjustments. Adjustments under this Section 7 shall be determined by the Committee and such determinations shall be conclusive. The Committee shall have
the discretion and power in any such event to determine and to make effective provision for acceleration of the time or times at which any option or portion thereof shall become exercisable. No fractional shares of Common Stock shall be issued under
the Plan on account of any adjustment specified above. 

  

	7.4	No Adjustment in Certain Cases. Except as hereinbefore expressly provided, the issue by the Company of shares of stock of any class, or securities convertible into shares of
stock of any class, for cash or property or for labor or services, either upon direct sale or upon the exercise of rights or warrants to subscribe therefore, or upon conversion of shares or obligations of the Company convertible into such shares or
other securities, shall not affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock then subject to outstanding options. 








 SECTION 8. Effect of Certain Transactions 
  

	8.1	Merger without Change of Control. After a merger of one or more corporations into the Company, or after a consolidation of the Company and one or more corporations, in each
case as a result of which (i) the Company shall be the surviving corporation, and (ii) the stockholders of the Company immediately prior to such merger or consolidation own after such merger or consolidation shares representing at least
fifty percent (50%) of the voting power of the Company, each holder of an outstanding option shall, at no additional cost, be entitled upon exercise of such option to receive (subject to any required action by stockholders), instead of the
number of shares as to which such option shall then be so exercisable, the number and class of shares of stock or other securities to which such holder would have been entitled pursuant to the terms of the agreement of merger or consolidation if,
immediately prior to such merger or consolidation, such holder had been the record holder of a number of shares of Common Stock equal to the number of shares as to which such option was exercisable. 

  

	8.2	Sale or Merger with Change of Control. If the Company is merged into or consolidated with another corporation under circumstances in which the Company is not the surviving
corporation, or if there is a merger or consolidation where the Company is the surviving corporation but the stockholders of the Company immediately prior to such merger or consolidation do not own after such merger or consolidation shares
representing at least fifty percent (50%) of the voting power of the Company, or if the Company is liquidated or sells or otherwise disposes of substantially all of its assets, while unexercised options remain outstanding under the Plan:
(i) subject to the provisions of clause (iii) below, after the effective date of such merger, consolidation, liquidation, sale or disposition, as the case may be, each holder of an outstanding option shall be entitled, upon exercise of
such option, to receive, in lieu of shares of Common Stock, shares of such stock or other securities, cash or property as the holders of shares of Common Stock received pursuant to the terms of the merger, consolidation, liquidation, sale or
disposition; (ii) the Committee may accelerate the time for exercise of all unexercised and unexpired options to a date prior to the effective date of such merger, consolidation, liquidation, sale or disposition, as the case may be, specified
by the Committee; or (iii) all outstanding options may be cancelled by the Committee as of the effective date of such merger, consolidation, liquidation, sale or disposition, provided that (x) notice of such cancellation shall be given to
each holder of an option and (y) each holder of an option shall have the right to exercise such option to the extent that the same is then exercisable or, if the Committee shall have accelerated the time for exercise of all unexercised and
unexpired options, in full during the 30-day period preceding the effective date of such merger, consolidation, liquidation, sale or disposition. 

 SECTION 9. Amendment of the Plan 
 The Board may terminate the Plan and may amend the Plan at any time, and from time to time, subject to
the limitation that, except as provided in Sections 7 and 8 hereof, no amendment shall be effective unless approved by the stockholders of the Company in accordance with applicable law and regulations, at an annual or special meeting held within 12
months before or after the date of adoption of such amendment would: (i) increase the number of shares of Common Stock that may e issued under, or as to which options may be granted pursuant to, the Plan; or 








 
(ii) change in substance the provisions of Section 4 hereof relating to eligibility to participate in the Plan. In addition, the provisions of
Section 4.2 shall be not amended more than once every six months, other than to comport with changes in the Code, the Employee Retirement Income Security Act, or the rules thereunder. Without limiting the generality of the foregoing, the Board
is expressly authorized to amend the Plan, at any time and from time to time, to conform it to the provisions of Rule 16b-3 under the Exchange Act, as that Rule may be amended from time to time. 
 Except as provided in Sections 7 and 8 hereof, rights and obligations under any option granted before any amendment of the Plan shall not be altered or impaired by such
amendment, except with the consent of the Grantee. 
 SECTION 10. Non-Exclusivity of the Plan; Non-Uniform Determinations 
 Neither the adoption of the Plan by the Board nor the approval of the Plan by the stockholders of the Company shall be construed as creating any limitations on the power
of the Board to adopt such other incentive arrangements as it may deem desirable, including without limitation the granting of options otherwise than under the Plan, and such arrangements may be either applicable generally or only in specific cases.

 The Committee’s determinations under the Plan need not be uniform and may be made by it selectively among persons who receive, or are eligible to
receive, awards under the Plan (whether or not such persons are similarly situated). Without limiting the generality of the foregoing, the Committee shall be entitled, among other things, to make non-uniform and selective determinations, and to
enter into non-uniform and selective Plan agreements, as to (i) the persons to receive awards under the Plan, (ii) the terms and provisions of awards under the Plan, (iii) the exercise by the Committee of its discretion in respect of
the exercise of options pursuant to the terms of the Plan, and (iv) the treatment of leaves of absence pursuant to Section 5(e) hereof. 
 SECTION 11. Government and Other Regulations; Tax Withholding 
 The obligation of the Company to sell and deliver shares of Common Stock
with respect to options granted under the Plan shall be subject to all applicable laws, rules and regulations, including all applicable federal and state securities laws, and the obtaining all of such approvals by government agencies as may be
deemed necessary or appropriate by the Committee. All shares sold under the Plan shall bear appropriate legends. The Company may, but shall in no event be obligated to, register or qualify any securities covered hereby under applicable federal and
state securities laws; and in the event any shares are so registered or qualified the Company may remove any legend on certificates representing such shares. The Company shall not be obligated to take any other affirmative action in order to cause
the exercise of an option or the issuance of shares pursuant thereto to comply with any law or regulation of any governmental authority. The Plan shall be governed by and construed in accordance with the laws of the State of Delaware. 
 Whenever under the Plan shares are to be delivered upon exercise of an option, the Company shall be entitled to require as a condition of delivery that the Grantee remit
an amount sufficient to satisfy all federal, state and other government withholding tax requirements related thereto. 







 SECTION 12. Effective Date of Plan 
 The effective date of the Plan is October 24, 1991, the date on which it was approved by the Board. No option may be granted under the Plan after October 23, 2001. Subject to the foregoing, options may be
granted under the Plan at any time subsequent to its effective date; provided, however, that (a) no such option shall be exercised or exercisable unless the stockholders of the Company shall have approved the Plan no later than one year from
such effective date, and (b) all options issued prior to the date of such stockholders’ approval shall contain a reference to such condition.