Jayabalan Harish 4

4 · MIAMI INTERNATIONAL HOLDINGS, INC. · Filed Jun 10, 2026

AI-generated summary of this filing

Updated Jun 10, 2026

MIAX EVP Jayabalan Harish Exercises Options, Sells Shares

What Happened

Jayabalan Harish, EVP, CISO and CRO of Miami International Holdings (MIAX), exercised a total of 20,000 stock options (fully vested) at an exercise price of $12.00 per share and immediately sold those 20,000 shares in the open market.
- 2026-06-08: exercised 10,217 options for $122,604 and sold 10,217 shares at a weighted-average $40.12 for $409,906.
- 2026-06-09: exercised 9,783 options for $117,396 and sold 9,783 shares at a weighted-average $40.04 for $391,711.
Combined exercise cost was $240,000; gross sale proceeds were approximately $801,617, implying an approximate pre-tax gain of $561,617.

Key Details

Transaction dates: June 8, 2026 and June 9, 2026.
Exercise price: $12.00 per share; sale weighted-average prices: $40.12 (6/8) and $40.04 (6/9). Per-trade ranges: $40.00–$40.40 (6/8) and $40.00–$40.14 (6/9); filing provides weighted averages (filing offers to provide per-trade detail on request).
Options status: fully vested (footnote F4).
Plan/authorization: Sales were effected pursuant to a pre-established Rule 10b5-1 trading plan adopted March 9, 2026 (footnote F1).
Derivative lines reported at $0 reflect conversion/exercise of the options into shares (cashless exercise followed by sale).
Shares owned after the transactions are not specified in the provided filing.
Filing timeliness: Report filed June 10, 2026 for trades on June 8–9 — within standard Form 4 timing (not marked late).

Context

This was an exercise-plus-immediate-sale (cashless) sequence — the insider converted vested options into shares and sold them the same days. Such transactions often reflect routine option monetization under pre-set plans; they are factual records of insider selling rather than explicit statements about company prospects.

Form 4

Period: 2026-06-08

EVP, CISO and CRO

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-06-08$12.00/sh+10,217$122,604→ 83,622 total
Sale
Common Stock
[F1][F2]
2026-06-08$40.12/sh−10,217$409,906→ 73,405 total
Exercise/Conversion
Common Stock
[F1]
2026-06-09$12.00/sh+9,783$117,396→ 83,188 total
Sale
Common Stock
[F1][F3]
2026-06-09$40.04/sh−9,783$391,711→ 73,405 total
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
[F1][F4]
2026-06-08−10,217→ 10,617 total
Exercise: $12.00Exp: 2027-10-12→ Common Stock (10,217 underlying)
Exercise/Conversion
Nonqualified Stock Option (Right to Buy)
[F1][F4]
2026-06-09−9,783→ 834 total
Exercise: $12.00Exp: 2027-10-12→ Common Stock (9,783 underlying)

Footnotes (4)

[F1]This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 9, 2026.
[F2]This transaction was executed in multiple trades throughout the day at prices ranging from $40.00 to $40.40. 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.
[F3]This transaction was executed in multiple trades throughout the day at prices ranging from $40.00 to $40.14. 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.
[F4]The options are fully vested.

Signature

/s/Alessandra Maria Corona Henriques, Attorney-in-Fact|2026-06-10

1 file