Exhibit 10.4

Effective as of 2/25/2020

SUMMARY OF ANNUAL NON-MANAGEMENT DIRECTOR COMPENSATION

I.Board Members (Other than the Lead Director)

A.Annual Cash Compensation

Annual Cash Retainer:	$125,000
Additional Cash Retainer for Chairman of Audit Committee:	$25,000
Additional Cash Retainer for Chairs of Compensation Committee,
Nominating and Corporate Governance Committee, Science and
Technology Committee and Strategy and Finance Committee:	$15,000

B.  Equity Compensation

Annual equity grants are made upon the recommendation of the Compensation Committee.

II.Lead Director

A.Annual Cash Compensation

Annual Cash Retainer: $165,000

B.Equity Compensation

Annual equity grants are made upon the recommendation of the Compensation Committee.

III.  Travel Expenses

Directors are reimbursed for reasonable out-of-pocket expenses incurred in attending meetings.