0000950170-24-015224.txt : 20240214 0000950170-24-015224.hdr.sgml : 20240214 20240214161343 ACCESSION NUMBER: 0000950170-24-015224 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240212 FILED AS OF DATE: 20240214 DATE AS OF CHANGE: 20240214 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Russell Stacy CENTRAL INDEX KEY: 0001799662 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35416 FILM NUMBER: 24638293 MAIL ADDRESS: STREET 1: 24275 KATY FREEWAY STREET 2: SUITE 600 CITY: KATY STATE: TX ZIP: 77494 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: U.S. SILICA HOLDINGS, INC. CENTRAL INDEX KEY: 0001524741 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] ORGANIZATION NAME: 01 Energy & Transportation IRS NUMBER: 263718801 STATE OF INCORPORATION: TX FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 24275 KATY FREEWAY STREET 2: SUITE 600 CITY: KATY STATE: TX ZIP: 77494 BUSINESS PHONE: (281) 258-2170 MAIL ADDRESS: STREET 1: 24275 KATY FREEWAY STREET 2: SUITE 600 CITY: KATY STATE: TX ZIP: 77494 FORMER COMPANY: FORMER CONFORMED NAME: GGC USS HOLDINGS, INC. DATE OF NAME CHANGE: 20110630 4 1 ownership.xml 4 X0508 4 2024-02-12 0001524741 U.S. SILICA HOLDINGS, INC. SLCA 0001799662 Russell Stacy C/O US SILICA HOLDINGS INC. 24275 KATY FREEWAY SUITE 600 KATY TX 77494 false true false false EVP General Counsel false Common Stock 2024-02-12 4 A false 57375 0 A 233757 D Common Stock 2024-02-12 4 F false 22578 10.56 D 211179 D Common Stock 2024-02-12 4 F false 4427 10.56 D 206752 D On February 12, 2021, the reporting person was granted performance-based resnicted stock units subject to vesting based on the attainment of certain pre-established objectives. Certain performance criteria were met, resulting in vesting of the grant as to 57,375 shares of the issuer's common stock on February 12, 2024. Represents tax withholding on vested performance-based restricted stock units. Represents tax withholding on vested restricted stock units. Stacy Russell 2024-02-14