---
schema_version: "secwatch.filing_event.v1"
accession: "0000874238-25-000095"
form_type: "8-K"
ticker: "STRL"
cik: "0000874238"
company_name: "STERLING INFRASTRUCTURE, INC."
filed_at: "2025-06-12T23:59:59+00:00"
generated_at: "2026-05-19T11:59:51.675703+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Sterling appoints Nicholas Grindstaff as CFO effective July 10, 2025

## Summary
- Grindstaff, 62, succeeds Ron Ballschmiede; Ballschmiede remains EVP until retirement to assist transition.
- Base salary of $600,000, sign-on bonus of $200,000, and 5,000 time-based RSUs vesting over 3 years.
- Target annual cash incentive of 75% of base salary; long-term equity target of 115% of base salary.
- Grindstaff most recently CFO of Cinterra; previously CFO of Orbital Infrastructure Group and VP Finance at Quanta Services.
- Appointment effective July 10, 2025; no family relationships or reportable transactions disclosed.

## SEC filing metadata
- accession: 0000874238-25-000095
- form_type: 8-K
- ticker: STRL
- cik: 0000874238
- company_name: STERLING INFRASTRUCTURE, INC.
- filed_at: 2025-06-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874238/000087423825000095/0000874238-25-000095-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874238/000087423825000095/strl-20250610.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000874238-25-000095
- JSON: https://secwatch.observer/filing/0000874238-25-000095.json
- Plain text: https://secwatch.observer/filing/0000874238-25-000095.txt

## Key facts
- Executive change
  Nicholas Grindstaff was appointed as Chief Financial Officer at STERLING INFRASTRUCTURE, INC..
  - Action: appointed
  - Role: Chief Financial Officer
  source text: On June 10, 2025, the Board of Directors of Sterling Infrastructure, Inc. (the Company) appointed Nicholas Grindstaff, age 62, as its Chief Financial Officer (CFO) and designated him as its principal accounting officer, effective July 10, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/874238/000087423825000095/0000874238-25-000095-index.htm
- Executive change
  Ronald A. Ballschmiede changed role as Executive Vice President at STERLING INFRASTRUCTURE, INC..
  - Role: Executive Vice President
  source text: As part of the transition, Mr. Ballschmiede will continue as Executive Vice President until his retirement expected in 2025 in order to assist Mr. Grindstaff.
  evidence_url: https://www.sec.gov/Archives/edgar/data/874238/000087423825000095/0000874238-25-000095-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.