---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-026088"
form_type: "8-K"
ticker: "OLED"
cik: "0001005284"
company_name: "UNIVERSAL DISPLAY CORP PA"
filed_at: "2022-12-06T23:59:59+00:00"
generated_at: "2026-06-21T08:31:33.617906+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Founder and Chairman Emeritus Sherwin Seligsohn dies December 3, 2022

## Summary
- Sherwin I. Seligsohn, founder of Universal Display, passed away on Dec 3, 2022.
- He served as Chairman from 1995 until June 2022, then became Chairman Emeritus.
- Elizabeth H. Gemmill succeeded him as Board Chair in June 2022.
- Seligsohn also founded InterDigital (IDCC) and held leadership roles there.

## SEC filing metadata
- accession: 0000950170-22-026088
- form_type: 8-K
- ticker: OLED
- cik: 0001005284
- company_name: UNIVERSAL DISPLAY CORP PA
- filed_at: 2022-12-06T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- 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/1005284/000095017022026088/0000950170-22-026088-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1005284/000095017022026088/oled-20221203.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-026088
- JSON: https://secwatch.observer/filing/0000950170-22-026088.json
- Plain text: https://secwatch.observer/filing/0000950170-22-026088.txt

## Key facts
- Executive change
  Sherwin I. Seligsohn departed as Director and Chairman Emeritus at UNIVERSAL DISPLAY CORP PA.
  - Action: died
  - Role: Director and Chairman Emeritus
  source text: Universal Display Corporation deeply regrets to announce that Sherwin I. Seligsohn, Company Founder, Director and Chairman Emeritus, died on December 3, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1005284/000095017022026088/0000950170-22-026088-index.htm

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