RESEARCH FRONTIERS INC
Patent Owners & Lessors · WOODBURY · NY
Moderate confidence (50%)
Updated Oct 13, 2026, 12:04 AM
What is happening
Derived by rule set status-rules-2026.09.7
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
Latest material event: RESEARCH FRONTIERS INC received a delisting notice from its exchange (Jun 2, 2026)
Timeline
Every material event, newest first. History is never overwritten.
RESEARCH FRONTIERS INC received a delisting notice from its exchange
Jun 2, 2026
Delisting notice received
- SEC EDGAR — “Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On June 2, 2026, Research Frontiers Incorporated (the Company ) received two deficiency notification letters from the Listing Qualifications Department of The Nasdaq Stock Market LLC ( Nasdaq ). The first notification letter advised the Company that, based upon the closing bid price of the Company s common stock for the 30 consecutive business days from April 15, 2026 to June 1, 2026, the Company no longer satisfies the $1.00 minimum bid price requirement for continued listing on The…”
Company information
- Founded
- —
- Employees (estimate)
- —
- Industry
- Patent Owners & Lessors
- Subindustry
- —
- Listing
- SEC lists the ticker REFR on Nasdaq.
- SEC CIK
- 0000793524
- Website
- —
- —
- Headquarters
- WOODBURY, NY
- Also known as
- —
- Legal entities
- RESEARCH FRONTIERS INC
Sources
Every material source used to build this profile.
SEC Company Submissions (TIER 1 · UNVERIFIED)
RESEARCH FRONTIERS INC — Patent Owners & Lessors (SIC 6794) — WOODBURY, NY
View source recordSEC EDGAR (TIER 1 · UNVERIFIED)
Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing. On June 2, 2026, Research Frontiers Incorporated (the Company ) received two deficiency notification letters from the Listing Qualifications Department of The Nasdaq Stock Market LLC ( Nasdaq ). The first notification letter advised the Company that, based upon the closing bid price of the Company s common stock for the 30 consecutive business days from April 15, 2026 to June 1, 2026, the Company no longer satisfies the $1.00 minimum bid price requirement for continued listing on The…
View source record
Status history
Every derived status, with the rule that produced it.
- DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:30 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:13 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:33 PM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 13, 2026, 12:04 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.
- UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:49 AM
An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.