Jayabalan Harish, EVP, CISO and CRO at Miami International Holdings, Inc. ($MIAX), made one open market purchase of company shares in the past year, totaling $57,500. His most recent buy occurred on August 13, 2025. Among 4,983 insiders tracked for purchases, his activity ranks 2,850th, well below the average of $1.46 million across 3.3 transactions per buyer. Harish reported no open market sales in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 9, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 3001 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Sept. 9, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Common Stock | 21999 | $12.00 | 72,384.0000 | 0 | 43.66% | 0.00% |
| Sept. 9, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Common Stock | 3001 | $12.00 | 75,385.0000 | 0 | 4.15% | 0.00% |
| Sept. 9, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | F | Common Stock | 1980 | $37.30 | 73,405.0000 | 0 | 2.63% | 0.00% |
| Sept. 9, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 21999 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 21999 | $0.00 | 21,999.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 16666 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 16666 | $0.00 | 16,666.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 8333 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 8333 | $0.00 | 8,333.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 8333 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 8333 | $0.00 | 8,333.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 6570 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 6570 | $0.00 | 6,570.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 6195 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 6195 | $0.00 | 6,195.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 3878 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 3878 | $0.00 | 3,878.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 3001 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | C | Common Stock | 500 | $0.00 | 50,385.0000 | 0 | 1.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 20834 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 20834 | $0.00 | 20,834.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 16667 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 16667 | $0.00 | 16,667.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 16667 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 16667 | $0.00 | 16,667.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 23430 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 23430 | $0.00 | 23,430.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 26304 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 26304 | $0.00 | 26,304.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 8621 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 8621 | $0.00 | 8,621.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Nonqualified Stock Option (Right to Buy) | 3001 | $0.00 | 3,001.0000 | 0 | 9999.99% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | C | Common Stock | 43442 | $0.00 | 50,385.0000 | 0 | 625.69% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | C | Series B Preferred Stock | 500 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | C | Nonvoting Common Stock | 43442 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 15, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | M | Incentive Stock Option (Right to Buy) | 21999 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Aug. 13, 2025 | MIAMI INTERNATIONAL HOLDINGS, INC. | $MIAX | Jayabalan Harish | EVP, CISO and CRO | P | Common Stock | 2500 | $23.00 | 6,443.0000 | 0 | 63.40% | 0.00% |