0000950170-24-015257.txt : 20240214 0000950170-24-015257.hdr.sgml : 20240214 20240214162627 ACCESSION NUMBER: 0000950170-24-015257 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: Shinn Bryan Adair CENTRAL INDEX KEY: 0001531831 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35416 FILM NUMBER: 24638941 MAIL ADDRESS: STREET 1: 8490 PROGRESS DRIVE STREET 2: SUITE 300 CITY: FREDERICK STATE: MD ZIP: 21701 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 0001531831 Shinn Bryan Adair C/O US SILICA HOLDINGS INC. 24275 KATY FREEWAY SUITE 600 KATY TX 77494 true true false false CEO false Common Stock 2024-02-12 4 A false 304262 0 A 1858881 D Common Stock 2024-02-12 4 F false 119728 10.56 D 1739153 D Common Stock 2024-02-12 4 F false 23476 10.56 D 1715677 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 304,262 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. /s/ Stacy Russell, as Attorney-in-Fact 2024-02-14