Document:

EX-10.8

 Exhibit 10.8 

ARMSTRONG WORLD INDUSTRIES, INC. 

2011 LONG-TERM INCENTIVE PLAN 

PERFORMANCE RESTRICTED STOCK UNIT GRANT 

TERMS AND CONDITIONS 

1. Grant.
 (a) Subject to the
terms set forth below, Armstrong World Industries, Inc. (the “Company”) has granted to the designated employee (the “Grantee”) a target award (the “Target Award”) of performance-based restricted
stock units (the “Performance Units”) as specified in the 2014 Long-Term Performance Restricted Stock Unit Grant letter to which these Grant Conditions relate (the “Grant Letter”). The “Date of
Grant” is February 25, 2014. The Performance Units are Stock Units with respect to common stock of the Company (“Company Stock”).

(b) The Performance Units shall be earned, vested and payable if and to the extent that the Return on Invested Capital performance goals
set forth in the Grant Letter (the “Performance Goals”), employment conditions and other terms of these Grant Conditions are met. The “Performance Period” for which the attainment of the Performance Goals will
be measured is the period beginning January 1, 2014 and ending December 31, 2016. 
 (c) These Terms and Conditions (the
“Grant Conditions”) are part of the Grant Letter. This grant is made under the Armstrong World Industries, Inc. 2011 Long-Term Incentive Plan (the “Plan”). Any terms not defined herein shall have the
meanings set forth in the Plan.
 2. Vesting. 

(a) The Grantee shall earn and vest in a number of Performance Units based on the attainment of the Performance Goals as of the end of the
Performance Period, provided that the Grantee continues to be employed by the Company or its subsidiaries or affiliates (collectively the “Employer”) through December 31, 2016 (the “Vesting Date”).

(b) At the end of the Performance Period, the Management Development and Compensation Committee (the “Committee”) will
determine whether and to what extent the Performance Goals have been met and the amount earned with respect to the Performance Units. The Grantee can earn up to 175% of the Target Award based on attainment of the Performance Goals, as set forth
in the Grant Letter. 
 (c) Except as described below, no Performance Units shall vest prior to the Vesting Date, and if the Performance
Goals are not attained at the end of the Performance Period, the Performance Units shall be immediately forfeited and shall cease to be outstanding. 

 3. Termination of Employment.  

(a) Except as described below, if the Grantee ceases to be employed by the Employer prior to the Vesting Date, the Performance Units shall
be forfeited as of the termination date and shall cease to be outstanding. 
 (b) If, after ten months following the Date of Grant but
prior to the Vesting Date, the Grantee ceases to be employed by the Employer on account of: (i) “55 / 5” Rule Termination (as defined below) or (ii) Involuntary Termination (as defined below), the Grantee shall earn a pro-rated
portion of the outstanding Performance Units based on the extent to which the Performance Goals are achieved, as determined following the end of the Performance Period, provided such vesting does not result in a violation of any age discrimination
or other applicable law. The pro-rated portion shall be determined by multiplying the number of Performance Units earned based on attainment of the Performance Goals by a fraction, the numerator of which is the number of months that elapsed
during the period beginning on January 1, 2014 through the Grantee’s termination date, and the denominator of which is 36. A partial month after the month of grant shall count as a full month for purposes of this calculation. The
pro-rated earned Performance Units shall be paid as described in Section 6. 
 (c) If the Grantee ceases to be employed by the
Employer prior to the Vesting Date on account of death or Long-Term Disability (as defined below), the Grantee shall earn a pro-rated portion of the outstanding Performance Units based on the extent to which the Performance Goals are achieved, as
determined following the end of the Performance Period. The pro-rated portion shall be determined by multiplying the number of Performance Units earned based on attainment of the Performance Goals by a fraction, the numerator of which is the
number of months that elapsed during the period beginning on January 1, 2014 through the Grantee’s termination date and the denominator of which is 36. A partial month after the month of grant shall count as a full month for purposes
of this calculation. The pro-rated earned Performance Units shall be paid as described in Section 6. 
 4. Change in Control Involuntary
Termination. Subject to Section 14 of the Plan, if the Grantee has an Involuntary Termination upon or within two years after a Change in Control and prior to the Vesting Date, the Grantee’s outstanding Performance Units shall vest
at their Target Award value and shall be paid within 60 days after such Involuntary Termination, notwithstanding Sections 3 and 6 herein. The Company shall issue shares of Company Stock equal to the vested Performance Units, subject to
applicable tax withholding. Notwithstanding the foregoing provisions of this Section 4, if the Grantee has a change in control agreement in effect with the Company, the terms of the change in control agreement and not the foregoing
sentences shall govern the vesting and payment of the Performance Units in the event of termination of employment upon, after or in connection with a Change in Control, to the extent that such change in control agreement conflicts with the terms of
these Grant Conditions. 
 5. Definitions. For purposes of these Grant Conditions and the Grant Letter: 

(a) “Cause” shall mean any of the following, as determined in the sole discretion of the Employer: (1) commission of
a felony or a crime involving moral turpitude; (2) fraud, dishonesty, misrepresentation, theft or misappropriation of funds with respect to the Employer; (3) violation of the Employer’s Code of Conduct or employment policies, as in
effect from time to time; (4) breach of any written noncompetition, confidentiality or nonsolicitation covenant of the Grantee with respect to the Employer; or (5) gross negligence or misconduct in the performance of the
Grantee’s duties with the Employer. 

 (b) “Involuntary Termination” shall mean the Employer’s termination of
the Grantee’s employment other than for Cause.
 (c) “Long-Term Disability” shall mean the Grantee is receiving
long-term disability benefits under the Employer’s long-term disability plan. 
 (d) “”55 / 5” Rule
Termination” shall mean the Grantee’s termination of employment other than for Cause after the Grantee has attained age 55 and has completed five years of service with the Employer. 

6. Payment. Except to the extent otherwise provided in Section 4 above, at the end of the Performance Period, if the Committee certifies
that the Performance Goals and other conditions to payment of the Performance Units have been met, the Company shall issue shares of Company Stock to the Grantee equal to the number of the vested earned Performance Units, subject to applicable
withholding for Taxes. Payment shall be made between January 1, 2017 and March 15, 2017. Any fractional shares will be rounded up to the nearest whole share. Notwithstanding any provision of the Plan, the Grant Letter or
these Grant Conditions to the contrary, the Performance Units shall be settled in shares of Company Stock only. 
 7. Dividend
Equivalents. Dividend Equivalents shall accrue with respect to Performance Units and shall be payable subject to the same vesting terms and other conditions as the Performance Units to which they relate. Dividend Equivalents shall be
credited on the Performance Units when dividends are declared on shares of Company Stock from the Date of Grant until the payment date for the vested Performance Units. The Company will keep records of Dividend Equivalents in a non-interest
bearing cash account for the Grantee. No interest will be credited to any such account. Vested Dividend Equivalents shall be paid in cash at the same time and subject to the same terms as the underlying vested Performance Units. If
and to the extent that the underlying Performance Units are forfeited, all related Dividend Equivalents shall also be forfeited.
 8. Delivery of
Shares. The Company’s obligation to deliver shares upon the vesting of the Performance Units shall be subject to applicable laws, rules and regulations and also to such approvals by governmental agencies as may be deemed appropriate to
comply with relevant securities laws and regulations.
 9. No Shareholder Rights. No shares of Company Stock shall be issued to the Grantee
on the Date of Grant, and the Grantee shall not be, nor have any of the rights or privileges of, a shareholder of the Company with respect to any Performance Units. 

10. No Right to Continued Employment. The grant of Performance Units shall not confer upon the Grantee any right to continued employment with
the Employer or interfere with the right of the Employer to terminate the Grantee’s employment at any time. 

 11. Incorporation of Plan by Reference. The Grant Letter and these Grant Conditions are made
pursuant to the terms of the Plan, the terms of which are incorporated herein by reference, and shall in all respects be interpreted in accordance therewith. The decisions of the Committee shall be conclusive upon any question arising hereunder. The
Grantee’s receipt of the Performance Units constitutes the Grantee’s acknowledgment that all decisions and determinations of the Committee with respect to the Plan, the Grant Letter, these Grant Conditions, and the Performance Units shall
be final and binding on the Grantee and any other person claiming an interest in the Performance Units.  
 12. Withholding Taxes.

 (a) The Employer shall have the right, and the Grantee hereby authorizes the Employer, to deduct from all payments made hereunder and
from other compensation an amount equal to the federal (including FICA), state, local and foreign taxes, social insurance, payroll tax, contributions, payment on account obligations or other amounts required by law to be collected, withheld or
accounted for with respect to the Performance Units (the “Taxes”). The Employer will withhold shares of Company Stock payable hereunder to satisfy the withholding obligation for Taxes on amounts payable in shares, unless the
Grantee provides a payment to the Employer to cover such Taxes, in accordance with procedures established by the Committee. The share withholding amount shall not exceed the Grantee’s minimum applicable withholding amount for Taxes. 

(b) Regardless of any action the Employer takes with respect to any such Taxes, the Grantee acknowledges that the ultimate liability for
all such Taxes legally due by the Grantee is and remains the Grantee’s responsibility and may exceed the amount actually withheld by the Employer. The Grantee further acknowledges that the Employer (i) makes no representations or
undertakings regarding the treatment of any Taxes in connection with any aspect of the Performance Units, including the grant, vesting or settlement of the Performance Units and the subsequent sale of any shares of Company Stock acquired at
settlement and the receipt of any Dividend Equivalents; and (ii) does not commit to structure the terms of the grant or any aspect of the Performance Units to reduce or eliminate the Grantee’s liability for Taxes. Further, if the
Grantee has become subject to tax in more than one jurisdiction between the date of grant and the date of any relevant taxable event, the Grantee acknowledges that the Employer (or the Grantee’s former employer, as applicable) may be required
to collect, withhold or account for Taxes in more than one jurisdiction. 
 13. Company Policies. All amounts payable under the Grant
Letter and these Grant Conditions shall be subject to any applicable clawback or recoupment policies, share trading policies and other policies that may be implemented by the Company’s Board of Directors from time to time.

14. Assignment. The Grant Letter and these Grant Conditions shall bind and inure to the benefit of the successors and assignees of the
Company. The Grantee may not sell, assign, transfer, pledge or otherwise dispose of the Performance Units, except to a successor grantee in the event of the Grantee’s death. 

 15. Section 409A. The Grant Letter and these Grant Conditions are intended to comply with
section 409A of the Internal Revenue Code or an exemption, consistent with Section 20(h) of the Plan. 
 16. Governing Law. The
validity, construction, interpretation and effect of the Grant Letter and these Grant Conditions shall be governed by, and determined in accordance with, the applicable laws of the Commonwealth of Pennsylvania, excluding any conflicts or choice of
law rule or principle. 
 17. No Entitlement or Claims for Compensation. In connection with the acceptance of the grant of the Performance
Units under the Grant Letter and these Grant Conditions, the Grantee acknowledges the following: 
 (a) the Plan is established
voluntarily by the Company, the grant of the Performance Units under the Plan is made at the discretion of the Committee and the Plan may be modified, amended, suspended or terminated by the Company at any time; 

(b) the grant of the Performance Units under the Plan is voluntary and occasional and does not create any contractual or other right to
receive future grants of Performance Units, or benefits in lieu of them, even if Performance Units have been granted repeatedly in the past;

(c) all decisions with respect to future grants of Performance Units, if any, will be at the sole discretion of the Committee; 

(d) the Grantee is voluntarily participating in the Plan; 

(e) the Performance Units and any shares of Company Stock acquired under the Plan are extraordinary items that do not constitute
compensation of any kind for services of any kind rendered to the Employer (including, as applicable, the Grantee’s employer) and which are outside the scope of the Grantee’s employment contract, if any; 

(f) the Performance Units and any shares of Company Stock acquired under the Plan are not to be considered part of the Grantee’s
normal or expected compensation or salary for any purpose, including, but not limited to, calculating any severance, resignation, termination, payment in lieu of notice, redundancy, end of service payments, bonuses, long-service awards, pension or
retirement or welfare benefits or similar payments; 
 (g) the Performance Units and the shares of Company Stock subject to the award
are not intended to replace any pension rights or compensation; 
 (h) the grant of Performance Units and the Grantee’s
participation in the Plan will not be interpreted to form an employment contract or relationship with the Employer; 
 (i) the future
value of the underlying shares of Company Stock is unknown and cannot be predicted with certainty. If the Grantee vests in the Performance Units and receives shares of Company Stock, the value of the acquired shares may increase or
decrease. The Grantee understands that the Company is not responsible for any foreign exchange fluctuation between the United States Dollar and the Grantee’s local currency that may affect the value of the Performance Units or the shares
of Company Stock; and 

 (j) the Grantee shall have no rights, claim or entitlement to compensation or damages as a
result of the Grantee’s cessation of employment (for any reason whatsoever, whether or not in breach of contract or local labor law or the terms of the Grantee’s employment agreement, if any), insofar as these rights, claim or entitlement
arise or may arise from the Grantee’s ceasing to have rights under or be entitled to receive shares of Company Stock under or ceasing to have the opportunity to participate in the Plan as a result of such cessation or loss or diminution in
value of the Performance Units or any of the shares of Company Stock acquired thereunder as a result of such cessation, and the Grantee irrevocably releases the Employer from any such rights, entitlement or claim that may arise. If,
notwithstanding the foregoing, any such right or claim is found by a court of competent jurisdiction to have arisen, then the Grantee shall be deemed to have irrevocably waived the Grantee’s entitlement to pursue such rights or claim. 

18. Addendum. Notwithstanding any provisions in these Grant Conditions, the Performance Units shall be subject to any special terms and
conditions set forth in any Addendum to this Agreement for the Grantee’s country. Moreover, if the Grantee relocates to one of the countries included in the Addendum, the special terms and conditions for such country will apply to the
Grantee, to the extent the Company determines that the application of such terms and conditions is necessary for legal or administrative reasons. The Addendum constitutes part of these Grant Conditions. 

*        *        * 

 ADDENDUM 

ARMSTRONG WORLD INDUSTRIES, INC. 

PERFORMANCE RESTRICTED STOCK UNIT GRANT 

Additional Terms and Conditions and Notifications 

This Addendum includes special terms and conditions that govern the Performance Units granted to the Grantee if the Grantee resides in the
countries listed herein. These terms and conditions are in addition to the terms and conditions set forth in the Grant Conditions. This Addendum may also include information regarding certain other issues of which the Grantee should be
aware with respect to the Grantee’s participation in the Plan. Capitalized terms used but not defined herein shall have the meanings assigned to them in the Grant Conditions (of which this Addendum is a part) and the Plan. 

Australia 
 (a) The Grant Letter and
Grant Conditions have been prepared for the purpose of providing general information, without taking account of the Grantee’s objectives, financial situation or needs. The Grantee should, before making any decisions, consider the
appropriateness of the information in the Grant Letter and Grant Conditions, and seek professional advice, having regard to the Grantee’s objectives, financial situation and needs. 

(b) The Company is not licensed to provide financial product advice in Australia in relation to the Performance Units and recommends that
the Grantee read the Plan, the Grant Letter and the Grant Conditions in full before making a decision to be granted Performance Units. There is no cooling-off regime in Australia that applies in respect of the grant of Performance Units. 

(c) If the Grantee acquires shares of Company Stock under the Plan and offers such shares for sale to a person or entity resident in
Australia, the offer may be subject to disclosure requirements under Australian law. The Grantee should obtain legal advice on disclosure obligations prior to making any such offer. 

France 
 Language Consent. The parties
acknowledge that it is their express wish that the agreements, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. 

Les parties reconnaissent avoir exigé la rédaction en anglais de cette convention, ainsi que de tous documents exécutés, avis
donnés et procédures judiciaries intentées, directement ou indirectement, relativement à ou suite à la présente convention. 

 Netherlands 

The Grantee should be aware of the Dutch insider trading rules, which may impact the sale of shares of Company Stock acquired under the
Performance Units. In particular, the Grantee may be prohibited from effecting certain share transactions if the Grantee has insider information regarding the Company. Below is a discussion of the applicable restrictions. The Grantee is
advised to read the discussion carefully to determine whether the insider rules apply to the Grantee. If it is uncertain whether the insider rules apply, the Company recommends that the Grantee consult with his or her personal legal
advisor. Please note that the Company cannot be held liable if the Grantee violates the Dutch insider rules. The Grantee is responsible for ensuring compliance with these rules. 

By entering into this Agreement and participating in the Plan, the Grantee acknowledges having read and understood the notification below
and acknowledges that it is his or her own responsibility to comply with the Dutch insider trading rules, as discussed herein. 

PROHIBITION AGAINST INSIDER TRADING. 

Dutch securities laws prohibit insider trading. Under Article 5.56 of the Dutch Financial Supervision Act, anyone who has “inside
information” related to the Company is prohibited from effectuating a transaction in securities in or from the Netherlands. “Inside information” is knowledge of specific information concerning the issuer to which the securities
relate that is not public and which, if published, would reasonably be expected to affect the share price, regardless of the actual effect on the price. The insider could be any employee of the Company or an affiliate in the Netherlands who has
inside information as described above. 
 Given the broad scope of the definition of inside information, certain employees of the Company
working at its Dutch affiliate may have inside information and thus, would be prohibited from effectuating a transaction in securities in the Netherlands at a time when he or she had such inside informationEX-10.1

 Exhibit 10.1 

MICROSTRATEGY INCORPORATED 

Amendment No. 1 to 

2013 Stock Incentive Plan 

Pursuant to Section 11(d) of the 2013 Stock Incentive Plan (the “Plan”) of MicroStrategy Incorporated (the
“Company”), the Plan is hereby amended as follows: 
 Section 4(a)(1) of the Plan is amended to read in its
entirety as follows: 
 “(1) Authorized Number of Shares. Subject to adjustment under Section 9, Awards may be made under
the Plan for up to 1,500,000 shares of class A common stock, $0.001 par value per share, of the Company (the “Common Stock”), any or all of which Awards may be in the form of Incentive Stock Options (as defined in
Section 5(b)). Shares issued under the Plan may consist in whole or in part of authorized but unissued shares or treasury shares.” 

This Amendment shall become effective on the date it is adopted by the Board; provided that, to the extent required, no Award shall be made
pursuant to the Plan (other than an Award that would have been authorized under the Plan as in effect prior to this Amendment) before stockholder approval of this Amendment, unless the Award is conditioned upon stockholder approval of this Amendment
and the Award provides that (1) it will terminate or be forfeited if stockholder approval of the Amendment is not obtained within 12 months from the date of the grant of such Award and (2) it may not be exercised or settled (or otherwise
result in the issuance of Common Stock) prior to such stockholder approval. 
 Adopted by the Board of Directors on April 25, 2014 

Approved by the Company’s stockholders 

on             , 20

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