John Smollen

Companies

• Miami International Holdings, Inc.EVP Traded Products & Relation Aug 13, 2025 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Miami International Holdings, Inc. MIAX269,878 shares²$8.3M at $30.87Jun 16, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 16, 2026Granted 7,455 shares of Miami International Holdings, Inc.²
• Mar 30, 2026Shares withheld for tax 362 shares at $37.50 of Miami International Holdings, Inc.³
• Sep 11, 2025Exercised options 24,999 shares at $12.00 of Miami International Holdings, Inc.⁴
• Sep 11, 2025Shares withheld for tax 52,054 shares at $37.39 of Miami International Holdings, Inc.⁴
• Sep 11, 2025Exercised options 125,001 shares at $12.00 of Miami International Holdings, Inc.⁴
• Aug 15, 2025Converted 91,666 shares of Miami International Holdings, Inc.⁵
• Aug 15, 2025Converted 73,173 shares of Miami International Holdings, Inc.⁵
• Aug 13, 2025Bought 5,000 shares at $23.00 of Miami International Holdings, Inc.⁶