Stacy Russell - Feb 10, 2022 Form 4 Insider Report for U.S. SILICA HOLDINGS, INC. (SLCA)

Role: SVP General Counsel
Signature: /s/ Stacy Russell
Stock symbol: SLCA
Transactions as of: Feb 10, 2022
Transactions value $: $0
Form type: 4
Date filed: 2/14/2022, 06:08 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	+30.9K	+28.33%	$0.00	140K	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) 1,043 restricted stock units granted on May 15, 2019 which will vest on May 15, 2022; (ii) 13,441 restricted stock units granted on February 6, 2020 which will vest on February 6, 2023; (iii) 33,333 restricted stock units granted on August 12, 2020 which will vest in equal installments on August 12, 2022 and 2023; (iv) 22,500 restricted stock units granted on February 12, 2021 which will vest in equal installments on February 12, 2023 and 2024; and (v) 30,874 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) 1,043 restricted stock units granted on May 15, 2019 which will vest on May 15, 2022; (ii) 13,441 restricted stock units granted on February 6, 2020 which will vest on February 6, 2023; (iii) 33,333 restricted stock units granted on August 12, 2020 which will vest in equal installments on August 12, 2022 and 2023; (iv) 22,500 restricted stock units granted on February 12, 2021 which will vest in equal installments on February 12, 2023 and 2024; and (v) 30,874 restricted stock units granted on February 10, 2022 which will vest in three equal installments on the anniversary of the grant date.