---
schema_version: "secwatch.filing_event.v1"
accession: "0000920371-22-000147"
form_type: "8-K"
ticker: "SSD"
cik: "0000920371"
company_name: "Simpson Manufacturing Co., Inc."
filed_at: "2022-09-08T23:59:59+00:00"
generated_at: "2026-06-23T13:32:16.232940+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# CEO Karen Colonias to retire June 2023; Mike Olosky named successor effective Jan 1, 2023

## Summary
- Karen Colonias steps down as CEO on Dec 31, 2022, retires from Simpson on June 30, 2023.
- Mike Olosky, current President & COO, becomes CEO and joins the board on Jan 1, 2023.
- Colonias will serve as Executive Advisor from Jan 1 to June 30, 2023 to assist transition.
- Colonias remains on the board until the 2023 annual meeting; Olosky to stand for election then.
- Colonias had 38-year tenure at Simpson; Olosky previously spent 22+ years at Henkel.

## SEC filing metadata
- accession: 0000920371-22-000147
- form_type: 8-K
- ticker: SSD
- cik: 0000920371
- company_name: Simpson Manufacturing Co., Inc.
- filed_at: 2022-09-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/0000920371-22-000147-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/ssd-20220905.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000920371-22-000147
- JSON: https://secwatch.observer/filing/0000920371-22-000147.json
- Plain text: https://secwatch.observer/filing/0000920371-22-000147.txt

## Key facts
- Executive change
  Mike Olosky changed role as President and Chief Executive Officer at Simpson Manufacturing Co., Inc..
  - Action: promoted
  - Role: President and Chief Executive Officer
  source text: Mike Olosky, currently the Company’s President and Chief Operating Officer, will succeed Ms. Colonias as President and Chief Executive Officer effective January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/0000920371-22-000147-index.htm
- Executive change
  Karen Colonias departed as Chief Executive Officer at Simpson Manufacturing Co., Inc..
  - Action: retire
  - Role: Chief Executive Officer
  source text: Karen Colonias notified the Company that she will retire from the Company on June 30, 2023 and step down from her position as Chief Executive Officer, effective December 31, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/0000920371-22-000147-index.htm
- Executive change
  Mike Olosky was appointed as Director at Simpson Manufacturing Co., Inc..
  - Action: appointed
  - Role: Director
  source text: Mr. Olosky will be appointed to the Board effective January 1, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/0000920371-22-000147-index.htm
- Executive change
  Karen Colonias was appointed as Executive Advisor at Simpson Manufacturing Co., Inc..
  - Action: appointed
  - Role: Executive Advisor
  source text: Ms. Colonias will remain employed as an Executive Advisor of the Company to assist with the transition until June 30, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/920371/000092037122000147/0000920371-22-000147-index.htm

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