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NYSE · USD

MIAX

MIAMI INTERNATIONAL HOLDINGS, INC.

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Tapewire entity
4026
SEC CIK
0001438472
Parsed reports
177

Last 12 months

Inside the activity.

4 purchase rows · 69 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202510
Jan 202600
Feb 202600
Mar 202636
Apr 2026013
May 202609
Jun 2026011
Jul 2026012
Aug 2026010
Sep 202607
Oct 202601

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
August 04, 2026 Filed Aug 6, 2026 20:10 UTC SaleCommon Stock 3,000 $45.79 $137,370.00
Disclosure

SEC source: 0001959770-26-000010 · wk-form4_1786047054.xml · nonDerivative · entry 1

Teekell Judson Gray · CIK 0001959770 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 72,251

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $45.13 to $46.56. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:06 UTC Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 48,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002079445-26-000015 · wk-form4_1786046792.xml · derivative · entry 3

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,334

Underlying: Common Stock · 48,000 shares

Expires 2028-05-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:06 UTC SaleCommon Stock 48,000 $45.71 $2,194,080.00
Disclosure

SEC source: 0002079445-26-000015 · wk-form4_1786046792.xml · nonDerivative · entry 2

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 387,414

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $45.09 to $46.78. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:06 UTC Exercise / conversionCommon Stock 48,000 $12.00 $576,000.00
Disclosure

SEC source: 0002079445-26-000015 · wk-form4_1786046792.xml · nonDerivative · entry 1

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 435,414

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 5,832 $0.00 Strike: $15.22 $0.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,598

Underlying: Common Stock · 5,832 shares

Expires 2030-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 14,168 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · derivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,168 shares

Expires 2029-07-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC
Jayabalan HarishEVP, CISO and CRO
SaleCommon Stock 20,000 $45.90 $918,000.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,065

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $45.04 to $46.78. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionCommon Stock 5,832 $15.22 $88,763.04
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,065

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

Read SEC document
August 04, 2026 Filed Aug 6, 2026 20:10 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionCommon Stock 14,168 $12.00 $170,016.00
Disclosure

SEC source: 0002080538-26-000006 · wk-form4_1786047009.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 92,233

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

Read SEC document
July 15, 2026 Filed Jul 16, 2026 20:15 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 5,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · derivative · entry 3

Schwarzkopf Cynthia · CIK 0002080596 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,916

Underlying: Common Stock · 5,000 shares

Expires 2027-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026.

F2 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 15, 2026 Filed Jul 16, 2026 20:15 UTC SaleCommon Stock 5,000 $42.00 $210,000.00
Disclosure

SEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · nonDerivative · entry 2

Schwarzkopf Cynthia · CIK 0002080596 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 88,545

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026.

Read SEC document
July 15, 2026 Filed Jul 16, 2026 20:15 UTC Exercise / conversionCommon Stock 5,000 $12.00 $60,000.00
Disclosure

SEC source: 0002080596-26-000006 · wk-form4_1784232907.xml · nonDerivative · entry 1

Schwarzkopf Cynthia · CIK 0002080596 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 93,545

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:07 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 28,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · derivative · entry 3

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,000 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:07 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
SaleCommon Stock 28,000 $41.98 $1,175,440.00
Disclosure

SEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · nonDerivative · entry 2

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 882,984

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $41.40 to $43.52. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:07 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
Exercise / conversionCommon Stock 28,000 $12.00 $336,000.00
Disclosure

SEC source: 0001628280-26-048154 · wk-form4_1784059634.xml · nonDerivative · entry 1

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 910,984

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:04 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 70,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-048149 · wk-form4_1784059473.xml · derivative · entry 3

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 0

Underlying: Common Stock · 70,000 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F4 · derivative.exercise_date: The options are fully vested.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:04 UTC
Gallagher Thomas P.Director · Chairman & CEO
SaleCommon Stock 70,000 $42.52 $2,976,400.00
Disclosure

SEC source: 0001628280-26-048149 · wk-form4_1784059473.xml · nonDerivative · entry 2

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,723,275

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F3 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $43.49. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 13, 2026 Filed Jul 14, 2026 20:04 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionCommon Stock 70,000 $12.00 $840,000.00
Disclosure

SEC source: 0001628280-26-048149 · wk-form4_1784059473.xml · nonDerivative · entry 1

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,793,275

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 08, 2026 Filed Jul 9, 2026 20:04 UTC Tax withholdingCommon Stock 171 $43.72 $7,476.12
Disclosure

SEC source: 0001628280-26-047778 · wk-form4_1783627475.xml · nonDerivative · entry 1

BROWN DAVID A · CIK 0001394399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,066

F1 · shares: Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock units and does not represent a sale by the Reporting Person.

Read SEC document
July 07, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 28,228 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · derivative · entry 6

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 70,000

Underlying: Common Stock · 28,228 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F5 · derivative.exercise_date: The options are fully vested.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 07, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
SaleCommon Stock 28,228 $42.27 $1,193,197.56
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · nonDerivative · entry 4

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,723,275

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F4 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.50. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 07, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionCommon Stock 28,228 $12.00 $338,736.00
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · nonDerivative · entry 3

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,751,503

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:10 UTC
Brown ShellyEVP, Chief Strategy Officer
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · derivative · entry 3

Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:10 UTC
Brown ShellyEVP, Chief Strategy Officer
SaleCommon Stock 16,000 $42.13 $674,080.00
Disclosure

SEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · nonDerivative · entry 2

Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 353,990

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.32. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:10 UTC
Brown ShellyEVP, Chief Strategy Officer
Exercise / conversionCommon Stock 16,000 $12.00 $192,000.00
Disclosure

SEC source: 0001628280-26-047491 · wk-form4_1783455045.xml · nonDerivative · entry 1

Brown Shelly · CIK 0002080506 · EVP, Chief Strategy Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 369,990

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 22, 2025.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 41,772 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · derivative · entry 5

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 98,228

Underlying: Common Stock · 41,772 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F5 · derivative.exercise_date: The options are fully vested.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
SaleCommon Stock 41,772 $42.09 $1,758,183.48
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · nonDerivative · entry 2

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,723,275

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F3 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.32. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 21:03 UTC
Gallagher Thomas P.Director · Chairman & CEO
Exercise / conversionCommon Stock 41,772 $12.00 $501,264.00
Disclosure

SEC source: 0001628280-26-047530 · wk-form4_1783458198.xml · nonDerivative · entry 1

Gallagher Thomas P. · CIK 0002080477 · Director · Chairman & CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Gallagher Investments, LLC

Disclosed balance after: 1,765,047

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 29, 2025.

F2 · ownership.nature: Mr. Gallagher maintains beneficial ownership, including dispositive and voting control, over Gallagher Investments, LLC.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:13 UTC
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 3,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047496 · wk-form4_1783455236.xml · derivative · entry 5

Deitzel Edward · CIK 0002080671 · EVP, CRO, CCO MIAX Exchanges

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 88,000

Underlying: Common Stock · 3,667 shares

Expires 2029-07-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:13 UTC
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 7,333 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047496 · wk-form4_1783455236.xml · derivative · entry 4

Deitzel Edward · CIK 0002080671 · EVP, CRO, CCO MIAX Exchanges

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,333 shares

Expires 2028-05-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 06, 2026 Filed Jul 7, 2026 20:13 UTC
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
SaleCommon Stock 11,000 $42.04 $462,440.00
Disclosure

SEC source: 0001628280-26-047496 · wk-form4_1783455236.xml · nonDerivative · entry 3

Deitzel Edward · CIK 0002080671 · EVP, CRO, CCO MIAX Exchanges

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 119,601

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.17. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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July 06, 2026 Filed Jul 7, 2026 20:13 UTC
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
Exercise / conversionCommon Stock 3,667 $12.00 $44,004.00
Disclosure

SEC source: 0001628280-26-047496 · wk-form4_1783455236.xml · nonDerivative · entry 2

Deitzel Edward · CIK 0002080671 · EVP, CRO, CCO MIAX Exchanges

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 130,601

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

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July 06, 2026 Filed Jul 7, 2026 20:13 UTC
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges
Exercise / conversionCommon Stock 7,333 $12.00 $87,996.00
Disclosure

SEC source: 0001628280-26-047496 · wk-form4_1783455236.xml · nonDerivative · entry 1

Deitzel Edward · CIK 0002080671 · EVP, CRO, CCO MIAX Exchanges

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 126,934

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 30, 2025.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 2,499 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 7

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,168

Underlying: Common Stock · 2,499 shares

Expires 2029-07-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 16,667 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 6

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,667 shares

Expires 2028-05-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 834 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · derivative · entry 5

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 834 shares

Expires 2027-10-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F3 · derivative.exercise_date: The options are fully vested.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
SaleCommon Stock 20,000 $42.12 $842,400.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 4

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,065

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.32. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionCommon Stock 2,499 $12.00 $29,988.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 3

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,065

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionCommon Stock 16,667 $12.00 $200,004.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 2

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 95,566

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

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July 06, 2026 Filed Jul 7, 2026 20:14 UTC
Jayabalan HarishEVP, CISO and CRO
Exercise / conversionCommon Stock 834 $12.00 $10,008.00
Disclosure

SEC source: 0001628280-26-047497 · wk-form4_1783455290.xml · nonDerivative · entry 1

Jayabalan Harish · CIK 0002080538 · EVP, CISO and CRO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,899

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.

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July 02, 2026 Filed Jul 7, 2026 20:08 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 5,250 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · derivative · entry 3

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,063

Underlying: Common Stock · 5,250 shares

Expires 2027-05-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · derivative.exercise_date: The options are fully vested

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July 02, 2026 Filed Jul 7, 2026 20:08 UTC SaleCommon Stock 5,250 $39.35 $206,587.50
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · nonDerivative · entry 2

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 149,612

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

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July 02, 2026 Filed Jul 7, 2026 20:08 UTC Exercise / conversionCommon Stock 5,250 $12.00 $63,000.00
Disclosure

SEC source: 0001628280-26-047488 · wk-form4_1783454926.xml · nonDerivative · entry 1

Eckert Kurt M. · CIK 0002080678 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,862

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

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July 02, 2026 Filed Jul 7, 2026 20:06 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 28,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · derivative · entry 3

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,000

Underlying: Common Stock · 28,000 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F3 · derivative.exercise_date: The options are fully vested.

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July 02, 2026 Filed Jul 7, 2026 20:06 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
SaleCommon Stock 28,000 $41.22 $1,154,160.00
Disclosure

SEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · nonDerivative · entry 2

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 882,984

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $39.79 to $41.79. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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July 02, 2026 Filed Jul 7, 2026 20:06 UTC
Comly Barbara J.EVP, GC & Corporate Secretary
Exercise / conversionCommon Stock 28,000 $12.00 $336,000.00
Disclosure

SEC source: 0001628280-26-047486 · wk-form4_1783454814.xml · nonDerivative · entry 1

Comly Barbara J. · CIK 0002080878 · EVP, GC & Corporate Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 910,984

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025.

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July 02, 2026 Filed Jul 7, 2026 20:09 UTC SaleCommon Stock 3,000 $40.00 $120,000.00
Disclosure

SEC source: 0001628280-26-047489 · wk-form4_1783454974.xml · nonDerivative · entry 1

Teekell Judson Gray · CIK 0001959770 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,251

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 17, 2025.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:06 UTC Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 42,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047484 · wk-form4_1783454763.xml · derivative · entry 5

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 91,334

Underlying: Common Stock · 42,000 shares

Expires 2028-05-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:06 UTC Exercise / conversionNonqualified Stock Option (Right to Buy) · Derivative 6,000 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001628280-26-047484 · wk-form4_1783454763.xml · derivative · entry 4

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,000 shares

Expires 2026-08-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

F3 · derivative.exercise_date: The options are fully vested.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 20:06 UTC SaleCommon Stock 48,000 $41.22 $1,978,560.00
Disclosure

SEC source: 0001628280-26-047484 · wk-form4_1783454763.xml · nonDerivative · entry 3

Schafer Douglas M. JR · CIK 0002079445 · EVP and CIO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 387,414

F1 · kind: This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 16, 2025.

F2 · price: This transaction was executed in multiple trades throughout the day at prices ranging from $39.79 to $41.79. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.