XX January 1, 2017.

Effective Date. Subject to the Joint and Survivor Annuity requirements set forth in Plan Section 6.5, the requirements of this Section shall apply to any distribution of a Participant's interest in the Plan and will take precedence over any inconsisten t provisions of this Plan.

Effective Date. This amended and restated Plan shall become effective on December 31, 2017.

Effective Date. The Plan shall become effective when adopted by the Board of Directors. If shareholder approval is not obtained within twelve months after the date of the Board’s adoption of the Plan, no Options previously granted under the Plan shall be deemed to be Incentive Stock Options and no Incentive Stock Options shall be granted thereafter. Amendments to the Plan not requiring shareholder approval shall become effective when adopted by the Board. Amendments requiring shareholder approval shall become effective when adopted by the Board, but if shareholder approval is not obtained within twelve months of the Board’s adoption of such amendment, any Incentive Stock Options granted pursuant to such amendment shall be deemed to be non-statutory Options provided that such Options are authorized by the Plan. Subject to this limitation, Options may be granted under the Plan at any time after the effective date and before the date fixed for termination of the Plan.

Effective Date. The Plan was originally effective upon its adoption by the Board of Directors of the Company on December 21, 2010 and was approved by stockholders at the Company’s 2011 Annual Meeting of Stockholders. Stockholders approved a prior amendment and restatement of the Plan at the Company’s 2015 Annual Meeting of Stockholders; the Compensation Committee of the Board and the Board have determined that stockholder approval of the amendment and restatement of the Plan as of March 21, 2017 is not required under Section 17 of the Plan.

The Plan has been in effect since June 1, 2007. Pursuant to its authority under [Section 7.4(a)] hereof, the Administrative Committee has determined that it is desirable to adopt a new restatement of the Plan in order to improve the administration of the Plan and make certain clarifications. This restatement is effective August 16, 2017.

Effective Date. The Plan shall be effective as of January 1, 2015. The Plan shall terminate on December 31, 2025, the tenth anniversary of the Plan’s effective date.

Effective Date. If Executive has attained or is over the age of 40 as of the date of Executive’s termination of employment, then each Party has seven days after that Party signs this Agreement to revoke it and this Agreement will become effective on the eighth day after Executive signed this Agreement, so long as it has been signed by the Parties and has not been revoked by either Party before that date (the “Effective Date”). If Executive has not attained the age of 40 as of the date of Executive’s termination of employment, then the “Effective Date” shall be the date on which Executive signs this Agreement. For the avoidance of doubt, if Executive revokes this Agreement as provided herein, the Parties’ modification to the Proprietary Information Agreement set forth in Section 4(a) above shall be void and of no effect. Unless the Company has elected or elects to expressly waive Executive’s noncompetition obligations set forth in Section 4(a) of the Proprietary Information Agreement as provided in Section 10(c) of the Proprietary Information Agreement, the Proprietary Information Agreement, including without limitation Section 4 of the Proprietary Information Agreement, shall remain in full force and effect.

Effective Date. Executive has seven days after Executive signs this Agreement to revoke it and this Agreement will become effective on the eighth day following the date Executive signed this Agreement (the “Effective Date”).

Effective Date. The provisions of this Letter Agreement shall be effective from the date of this Letter Agreement written above.