SEC Tracker
Get the app

Miami International Holdings MIAX

Gray Teekell J. (Director) plans to sell 9,000 MIAX shares, about $424,530

Form
144
Filed
Importance
Routine
  1. Approximate sale date: May 4, 2026
  2. Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
  3. Shares acquired by: Previously Exercised Stock Options
  4. 10b5-1 plan adopted: Dec 17, 2025

All of Gray Teekell J.'s insider filings, holdings and planned sales

Form 4s that likely executed this notice (SEC Tracker's match by person, company, dates and shares):

  • Sold 3,000 shares at $47.3 on May 4, 2026 · Form 4
  • Sold 3,000 shares at $42.78 on Jun 2, 2026 · Form 4
  • Sold 3,000 shares at $40 on Jul 2, 2026 · Form 4

Written from the Form 144 on EDGAR. AI can make mistakes. Check the filing.

Open in the appGet the appView on EDGAR

Get an email when Miami International Holdings files

Only major filings: results, leadership changes, listing notices and other major events, each with the plain-English summary when we have one or the key facts and the EDGAR link. Routine insider filings never email. Confirm once; unsubscribe in one click.

Similar companies

Companies of similar size in SIC 6211 and related industry codes: the same peer list as the financial tables.

  1. Oppenheimer Holdings OPY public float $685M, Jun 30, 2025
  2. Piper Sandler Companies PIPR public float $4.8B, Jun 30, 2025
  3. Marketaxess Holdings MKTX public float $7.3B, Dec 31, 2025
  4. Sei Investments SEIC public float $9.5B, Jun 30, 2025
  5. Interactive Brokers Group IBKR public float $23.8B, Jun 30, 2025

Data on this page was fetched . The filing on SEC.gov is the record.