Transactions
23
Insider / MIAMI INTERNATIONAL HOLDINGS, INC.
Jayabalan Harish
EVP, CISO and CRO at MIAMI INTERNATIONAL HOLDINGS, INC.
- Ticker
- MIAX
- First filing on record
- June 10, 2026
- Latest trade on record
- September 25, 2026
- SEC filings
- EDGAR ↗
Jayabalan Harish, EVP, CISO and CRO at MIAMI INTERNATIONAL HOLDINGS, INC., has disclosed 23 transactions in MIAX since June 10, 2026: 0 purchases (0 open-market buys) and 4 sales, worth about $3.4M at the reported prices. The latest was filed September 29, 2026, 4 days after the trade.
Open-market buys
0
Sales
4
Avg. disclosure lag
1.7d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Jayabalan Harish made no purchases and 4 sales worth $2.6M, plus 19 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Jayabalan Harish has traded 1 stock on record; the largest by dollars is MIAX.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 5 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 16 | 136,666 | $839K |
| S | Open-market sale | 4 | 60,000 | $2.6M |
| A | Grant or award | 3 | 41,953 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 23 | 0 | 4 · $2.6M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| MIAX | Option / conversion M | September 25, 2026 | September 29, 2026 | 4d | 8,333 | — | — | derivative | Form 4 ↗ | |
| MIAX | Option / conversion M | September 25, 2026 | September 29, 2026 | 4d | 8,333 | $12 | $100K | Form 4 ↗ | ||
| MIAX | Option / conversion M | August 4, 2026 | August 6, 2026 | 2d | 5,832 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Option / conversion M | August 4, 2026 | August 6, 2026 | 2d | 14,168 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Sell S | August 4, 2026 | August 6, 2026 | 2d | 20,000 | $46 | $918K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | August 4, 2026 | August 6, 2026 | 2d | 5,832 | $15 | $89K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | August 4, 2026 | August 6, 2026 | 2d | 14,168 | $12 | $170K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 2,499 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 16,667 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 834 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Sell S | July 6, 2026 | July 7, 2026 | 1d | 20,000 | $42 | $842K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 2,499 | $12 | $30K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 16,667 | $12 | $200K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | July 6, 2026 | July 7, 2026 | 1d | 834 | $12 | $10K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Other A | June 16, 2026 | June 18, 2026 | 2d | 34,808 | — | — | derivative | Form 4 ↗ | |
| MIAX | Other A | June 16, 2026 | June 18, 2026 | 2d | 2,485 | — | — | derivative | Form 4 ↗ | |
| MIAX | Other A | June 16, 2026 | June 18, 2026 | 2d | 4,660 | — | — | Form 4 ↗ | ||
| MIAX | Option / conversion M | June 9, 2026 | June 10, 2026 | 1d | 9,783 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Option / conversion M | June 8, 2026 | June 10, 2026 | 2d | 10,217 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MIAX | Sell S | June 9, 2026 | June 10, 2026 | 1d | 9,783 | $40 | $392K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | June 9, 2026 | June 10, 2026 | 1d | 9,783 | $12 | $117K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Sell S | June 8, 2026 | June 10, 2026 | 2d | 10,217 | $40 | $410K | 10b5-1 plan | Form 4 ↗ | |
| MIAX | Option / conversion M | June 8, 2026 | June 10, 2026 | 2d | 10,217 | $12 | $123K | 10b5-1 plan | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 29, 2026 | Form 4 | 0001628280-26-063831 | 2 | published | EDGAR ↗ |
| August 6, 2026 | Form 4 | 0002080538-26-000006 | 5 | published | EDGAR ↗ |
| July 7, 2026 | Form 4 | 0001628280-26-047497 | 7 | published | EDGAR ↗ |
| June 18, 2026 | Form 4 | 0002080538-26-000004 | 3 | published | EDGAR ↗ |
| June 10, 2026 | Form 4 | 0002080538-26-000002 | 6 | published | EDGAR ↗ |
Other insiders at MIAMI INTERNATIONAL HOLDINGS, INC.
- Gallagher Thomas P. Chairman & CEO 47 rows
- Brown Shelly EVP, Chief Strategy Officer 40 rows
- Comly Barbara J. EVP, GC & Corporate Secretary 35 rows
- Schafer Douglas M. JR EVP and CIO 34 rows
- Deitzel Edward EVP, CRO, CCO MIAX Exchanges 32 rows
- Eckert Kurt M. Director 18 rows
- STAHL MURRAY Director 13 rows
- Teekell Judson Gray Director 13 rows
- Emmons Lance EVP and CFO 12 rows
- Schwarzkopf Cynthia Director 12 rows
Everyone on file, with contracts and lobbying under the company's name: MIAMI INTERNATIONAL HOLDINGS, INC..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 5 | 23 | June 10, 2026 | September 29, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.