---
schema_version: "secwatch.filing_event.v1"
accession: "0001079973-25-000341"
form_type: "8-K"
ticker: "NNUP"
cik: "0000888981"
company_name: "NOCOPI TECHNOLOGIES INC/MD/"
filed_at: "2025-03-04T23:59:59+00:00"
generated_at: "2026-05-25T16:36:21.090106+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Nocopi Technologies CEO and Chairman resigns; Matthew Winger appointed as replacement

## Summary
- Michael S. Liebowitz resigned as Chairman and CEO effective Feb 26, 2025, not due to any disagreement with the company.
- Board appointed Matthew C. Winger as Chairman and CEO effective March 4, 2025, filling the vacancy.
- Winger previously served as EVP of Corporate Development at Nocopi and is a Managing Director at Douglas Elliman.
- No family relationships or material interests exist between Winger and other officers or directors.

## SEC filing metadata
- accession: 0001079973-25-000341
- form_type: 8-K
- ticker: NNUP
- cik: 0000888981
- company_name: NOCOPI TECHNOLOGIES INC/MD/
- filed_at: 2025-03-04T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/888981/000107997325000341/0001079973-25-000341-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/888981/000107997325000341/nnup_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001079973-25-000341
- JSON: https://secwatch.observer/filing/0001079973-25-000341.json
- Plain text: https://secwatch.observer/filing/0001079973-25-000341.txt

## Key facts
- Executive change
  Michael S. Liebowitz resigned as Chairman and Chief Executive Officer at NOCOPI TECHNOLOGIES INC/MD/.
  - Action: resigned
  - Role: Chairman and Chief Executive Officer
  source text: On February 26, 2025, Michael S. Liebowitz notified the Board of Directors (the “ Board ”) of Nocopi Technologies, Inc. (the “ Company ”) of his resignation as Chairman of the Board and Chief Executive Officer of the Company, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/888981/000107997325000341/0001079973-25-000341-index.htm
- Executive change
  Matthew C. Winger was appointed as Chairman and Chief Executive Officer at NOCOPI TECHNOLOGIES INC/MD/.
  - Action: appointed
  - Role: Chairman and Chief Executive Officer
  source text: On March 4, 2025, the Board appointed Matthew C. Winger as the Company’s Chairman of the Board and Chief Executive Officer (and principal executive officer), effective immediately, to fill the vacancy created by Mr. Liebowitz’s resignation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/888981/000107997325000341/0001079973-25-000341-index.htm

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