Donna Lynnette Crowder - Feb 10, 2022 Form 4 Insider Report for U.S. SILICA HOLDINGS, INC. (SLCA)

Role: SVP and CHRO
Signature: /s/ Stacy Russell, as Attorney-in-Fact
Stock symbol: SLCA
Transactions as of: Feb 10, 2022
Transactions value $: $0
Form type: 4
Date filed: 2/14/2022, 06:01 PM
Previous filing: Dec 22, 2021
Next filing: May 16, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SLCA	Common Stock	Award	$0	+18K	+13.9%	$0.00	148K	Feb 10, 2022	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents restricted stock units granted on February 10, 2022 which will vest in three equal installments on the anniversary of the grant date.
F2	Includes (i) 6,858 restricted stock units granted on November 7, 2019, which will vest on November 7, 2022; (ii) 6,720 restricted stock units granted on February 6, 2020, which will vest on February 6, 2023; (iii) 50,000 restricted stock units granted on May 12, 2020 which will vest in equal installments on May 12, 2022 and 2023; (iv) 13,867 restricted stock units granted on February 12, 2021 which will vest in equal installments on February 12, 2023 and 2024 and (v) 18,036 restricted stock units granted on February 10, 2022 which will vest in three equal installments on the anniversary of the grant date.

Content

Represents restricted stock units granted on February 10, 2022 which will vest in three equal installments on the anniversary of the grant date.

Includes (i) 6,858 restricted stock units granted on November 7, 2019, which will vest on November 7, 2022; (ii) 6,720 restricted stock units granted on February 6, 2020, which will vest on February 6, 2023; (iii) 50,000 restricted stock units granted on May 12, 2020 which will vest in equal installments on May 12, 2022 and 2023; (iv) 13,867 restricted stock units granted on February 12, 2021 which will vest in equal installments on February 12, 2023 and 2024 and (v) 18,036 restricted stock units granted on February 10, 2022 which will vest in three equal installments on the anniversary of the grant date.