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Miami International Holdings, Inc. planned insider sales

In the last twelve months insiders at Miami International Holdings, Inc. filed 32 Form 144 notices of planned sales, 2.1 million shares worth $87.4 million at the time of filing, from 13 sellers. The latest, filed 2 October 2026: Douglas M. Schafer Jr. (officer), 120,000 shares worth $4.0 million, planned for around 2 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
2 October 2026Douglas M. Schafer Jr.Officer120,000$4.0 million2 October 202648,000 shares from 2 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
16 September 2026Shelly BrownOfficer21,217$838,28416 September 202621,217 shares from 16 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
3 September 2026Gallagher Investments LLCDirector, Officer141,000$5.7 million3 September 2026None on Form 4 yetMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
19 August 2026Gallagher Investments LLCDirector, Officer149,700$6.3 million19 August 2026None on Form 4 yetMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
17 August 2026Lance EmmonsOfficer35,000$1.5 million17 August 202635,000 shares from 17 August 2026J.P. Morgan Securities LLCVested RSA'sForm 144
4 August 2026J. Gray TeekellDirector6,000$280,9804 August 202611,545 shares from 4 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPreviously Exercised Stock OptionsForm 144
4 August 2026Edward DeitzelOfficer44,000$2.1 million4 August 202622,000 shares from 4 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 August 2026Gallagher Investments LLCDirector, Officer48,334$2.3 million4 August 2026None on Form 4 yetMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 August 2026Harish JayabalanOfficer63,902$3.0 million4 August 202620,000 shares from 4 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 August 2026Barbara J. ComlyOfficer180,557$8.5 million4 August 2026101,196 shares from 4 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
15 July 2026Cynthia SchwarzkopfDirector15,000$619,50015 July 202610,000 shares from 15 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
6 July 2026Shelly BrownOfficer16,000$653,4406 July 202616,000 shares from 6 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
6 July 2026Harish JayabalanOfficer20,000$816,8006 July 202620,000 shares from 6 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
2 July 2026Kurt M. EckertDirector6,313$246,5232 July 20266,313 shares from 2 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
2 July 2026Douglas M. Schafer Jr.Officer144,000$5.6 million2 July 2026144,000 shares from 2 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
15 June 2026Shelly BrownOfficer4,714$204,06915 June 20264,714 shares from 15 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
11 June 2026Cynthia SchwarzkopfDirector19,500$795,40511 June 202619,500 shares from 11 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
8 June 2026Harish JayabalanOfficer20,000$784,2008 June 202620,000 shares from 8 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
15 May 2026Lance EmmonsOfficer35,000$1.9 million15 May 202635,000 shares from 15 May 2026J.P. Morgan Securities LLCVested RSAForm 144
4 May 2026J. Gray TeekellDirector9,000$424,5304 May 20269,000 shares from 4 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPreviously Exercised Stock OptionsForm 144
4 May 2026Shelly BrownOfficer32,000$1.5 million4 May 202632,000 shares from 4 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 May 2026Edward DeitzelOfficer33,000$1.6 million4 May 202633,000 shares from 4 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
15 April 2026Thomas P GallagherDirector, Officer49,900$2.1 million15 April 2026504,025 shares from 15 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
15 April 2026Barbara J ComlyOfficer141,667$6.1 million15 April 2026141,667 shares from 15 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
15 April 2026Gallagher Investments LLCDirector, Officer454,125$19.5 million15 April 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock AwardsForm 144
7 April 2026Edward DeitzelOfficer12,335$513,5067 April 202612,335 shares from 7 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
7 April 2026Shelly BrownOfficer17,334$721,6147 April 202619,691 shares from 6 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
6 April 2026Shelly BrownOfficer2,357$94,6816 April 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
25 March 2026J. Gray TeekellDirector3,000$118,38025 March 20263,000 shares from 25 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPreviously Exercised Stock OptionsForm 144
23 March 2026Shelly BrownOfficer25,932$1.0 million23 March 202625,932 shares from 23 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock AwardsForm 144
19 March 2026Kurt M EckertDirector48,792$1.9 million19 March 202648,792 shares from 19 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock Options; Restricted Stock AwardsForm 144
17 March 2026Douglas M. Schafer Jr.Officer144,000$5.7 million17 March 2026144,000 shares from 17 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?