Recent 8-K filings for REFR

• June 5, 2026, 5:00 PM ET regulatory materiality 0.85 negative item 3.01item 9.01

  Research Frontiers faces Nasdaq delisting over bid price and market value

  First deficiency: common stock closing bid price below $1.00 for 30 consecutive days ending June 1, 2026.

• February 18, 2026, 6:59 PM ET other material materiality 0.65 neutral item 1.01item 9.01 ◈ Material Agreements

  Research Frontiers raises $1.1M in private placement of 1.1M shares and warrants

  Issued 1.1M shares at $1.00 each to accredited investors including director's family and a licensee.

• September 20, 2022, 7:59 PM ET other material materiality 0.70 neutral item 1.01item 7.01item 9.01

  Research Frontiers raises $4.6M in private placement; grants warrants at $2.76/share

  Sold 2.0 million shares at $2.30 each to accredited investors, raising $4.6 million.

Executive changes

Materiality & sentiment trend

Max materiality 0.85 · Median 0.35 · Most common event other_material

1 positive 1 negative 8 neutral

source · REFR on sec.gov