Smart Sand, Inc. — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Smart Sand, Inc. (SND)
CIK: 0001529628
Period of Report: 2026-02-27

Reporting Person: KISZKA ROBERT (Executive VP of Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-27	Common Stock	A	18587	—	Acquired	540617	Direct
2026-02-27	Common Stock	A	21874	—	Acquired	562491	Direct
2026-02-27	Common Stock	F	11515	$5.19	Disposed	550976	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	448738	Indirect

Footnotes

F1: Reflects the number of shares earned in respect of ROIC-based performance award shares originally granted on March 17, 2023. On February 27, 2026, the Issuer confirmed the achievement of the applicable performance metric, which was based on a relative annual Return on Invested Capital (ROIC) goal for the performance period commencing on January 1, 2023 and continuing through December 31, 2025.

F2: Reflects the number of shares earned in respect of free cash flow based performance award shares originally granted on March 17, 2023. On February 27, 2026, the Issuer confirmed the achievement of the applicable performance metric, which was based on a relative annual free cash flow goal for the performance period commencing on January 1, 2023 and continuing through December 31, 2025.

F3: Represents the number of shares withheld for tax purposes upon the vesting of ROIC-based and free cash flow based performance shares originally granted to the Reporting Person on March 17, 2023.

F4: Held by a limited liability company ("LLC") of which the Reporting Person serves as the sole member with sole voting and investment control over the securities held thereby. The Reporting Person disclaims beneficial ownership of the securities held by the LLC except to the extent of his pecuniary interest therein.