Recent 8-K filings for MIAX

• June 17, 2026, 4:18 PM ET other material materiality 0.30 neutral item 5.02

  MIAX adopts Senior Executive Annual Bonus Plan effective Jan 1, 2026

  Bonus Plan approved by Compensation Committee on June 15, 2026, for performance periods starting Jan 1, 2026.

• May 6, 2026, 7:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01 ◈ Earnings Releases

  MIAX Q1 net revenue $128.6M (+40% YoY); adjusted EPS $0.42, EBITDA margin 51%

  Q1 net revenue $128.6M (+40% YoY); GAAP diluted EPS $1.56; adjusted diluted EPS $0.42.

• April 27, 2026, 7:59 PM ET leadership materiality 0.25 neutral item 5.02

  Miami International Holdings elects Eric Sites as director to fill vacancy

  Eric Sites elected to board effective April 24, 2026, filling existing vacancy.

• April 9, 2026, 7:59 PM ET leadership materiality 0.40 neutral item 5.02

  Miami International Holdings announces death of director Murray Stahl on April 9, 2026

  Director Murray Stahl passed away; company announced his passing on April 9, 2026.

• March 26, 2026, 7:59 PM ET leadership materiality 0.35 neutral item 5.02

  Director Lee Becker not standing for reelection; Jill E. Sommers appointed to board

  Lee Becker will not stand for reelection at the 2026 Annual Meeting; no disagreement with company.

• March 2, 2026, 6:59 PM ET other material materiality 0.15 neutral item 3.02 ◈ Equity Issuances

  Issues 1.03M shares via cashless warrant exercises

  Issued 1,033,166 shares of common stock to two warrant holders via cashless exercises.

• February 25, 2026, 6:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01

  MIAX Q4 net revenue $124.5M (+52% YoY), adjusted EBITDA $62.2M (+112%); sets FY2026 guidance

  Q4 GAAP diluted EPS $0.27; adjusted diluted EPS $0.52.

• February 20, 2026, 6:59 PM ET other material materiality 0.65 neutral item 3.02 ◈ Equity Issuances

  MIAX issues 2.15M shares via cashless warrant exercise; net dilution of ~2.15M shares

  Issued 2,150,894 shares of common stock on Feb 18, 2026, via cashless exercise of a pre-funded warrant.

• February 12, 2026, 6:59 PM ET other material materiality 0.45 neutral item 3.02 ◈ Equity Issuances

  Miami International Holdings issues 3.97M shares since Dec 15 via note conversion and warrant exercises

  Total of 3,973,663 common shares issued between Dec 15, 2025 and Feb 9, 2026.

• January 21, 2026, 6:59 PM ET M&A materiality 0.65 positive item 8.01item 9.01

  MIAX completes sale of 90% of MIAX Derivatives Exchange to Robinhood-Susquehanna JV

  Sold 90% of MIAXdx equity to joint venture by Robinhood (HOOD) and Susquehanna International Group.

• December 15, 2025, 6:59 PM ET other material materiality 0.70 neutral item 3.02item 8.01 ◈ Equity Issuances ×3

  Miami International Holdings secondary offering of 6.75M shares by stockholders; 4M shares issued unregistered

  Existing stockholders sold 6,750,000 shares in secondary offering at $41.00 per share; company received no proceeds.

• November 26, 2025, 6:59 PM ET M&A materiality 0.70 positive item 8.01item 9.01

  MIAX sells 90% of MIAXdx to Robinhood & Susquehanna; retains 10% stake

  MIAX to sell 90% of MIAXdx to Robinhood Markets (NASDAQ:HOOD) in partnership with Susquehanna International Group.

• November 5, 2025, 6:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01

  MIH Q3 net revenue +57% to $109.5M; GAAP net loss $102.1M due to IPO/debt extinguishment costs

  Net revenue $109.5M (+57% YoY); options segment net revenue $94.5M (+55%).

• October 8, 2025, 7:59 PM ET leadership materiality 0.30 neutral item 5.02

  Director Jamil Nazarali resigns from Miami International Holdings board, effective October 3, 2025

  Jamil Nazarali resigned as director to pursue other professional opportunities; no dispute with company.

• August 19, 2025, 7:59 PM ET debt materiality 0.70 neutral item 1.02

  Miami International Holdings terminates $178.5M loan with Warburg Pincus affiliate

  Terminated 2029 Senior Secured Loan Agreement with Skylight Aggregator, L.P. (Warburg Pincus affiliate) on Aug 18, 2025.

• August 15, 2025, 7:59 PM ET other material materiality 0.90 positive item 3.02item 8.01

  Miami International Holdings completes IPO of 17.25M shares at $23, gross proceeds $396.8M

  IPO closed August 15, 2025, with 17,250,000 shares sold at $23.00 per share, including full underwriter over-allotment of 2,250,000 shares.

Earnings & guidance

Materiality & sentiment trend

Max materiality 0.90 · Median 0.65 · Most common event other_material

6 positive 0 negative 10 neutral

source · MIAX on sec.gov