STERLING INFRASTRUCTURE, INC. — Director's Dealing 2021

May 6, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STERLING CONSTRUCTION CO INC (STRL)
CIK: 0000874238
Period of Report: 2021-05-05

Reporting Person: BALLSCHMIEDE RONALD A (EVP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-05	Common Stock	A	17088	—	Acquired	253066	Direct

Footnotes

F1: Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of December 31, 2021 and the next two anniversaries thereof, provided the service conditions are satisfied. The award was granted subject to stockholder approval of the Issuer's Amended and Restated 2018 Stock Incentive Plan, which occurred on May 5, 2021.

F2: Of these shares, 38,588 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.