Washington, D.C. 20549
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934
Date of Report (date of earliest event reported): February 9, 2021
U.S. Silica Holdings, Inc.
(Exact name of registrant as specified in its charter)
(State or other jurisdiction of incorporation)
001-35416 26-3718801
(Commission File Number) (IRS Employer Identification No.)
24275 Katy Freeway, Suite 600
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (281) 258-2170
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: 
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
Common Stock, $0.01 par value SLCA  New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 5.02Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b)     On February 9, 2021, Bonnie. C Lind notified the Board of Directors (the “Board”) of U.S. Silica Holdings, Inc. (the “Company”) of her intent to retire from her role as a director of the Company effective as of February 12, 2021 (the “Departure Date”). In connection with Ms. Lind’s retirement, the compensation committee of the Board determined to accelerate the vesting of the grant of restricted stock units received by Ms. Lind in connection with the 2020 Annual Meeting of Stockholders upon the Departure Date. Ms. Lind’s decision to retire does not relate to any disagreement with the Company, its management or the Board of Directors on any matter relating to the Company’s operations, policies or practices. The Company deeply appreciates Ms. Lind’s service and commitment and wishes her well.


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 16, 2021
   /s/ Stacy Russell
   Stacy Russell
   Senior Vice President, General Counsel & Corporate Secretary