Gallagher Thomas P.: insider trades.
Gallagher Thomas P. reported 16 non-derivative transactions on 5 SEC ownership filings in Q3 2026: 0 open-market purchases and 6 sales ($16.3M), across 1 company.
- Transactions
- 16
- Purchases (P)
- 0
- Sales (S)
- 6
- Companies
- 1
- Name as filed
- Gallagher Thomas P.
Companies
| Company | Relationship | Transactions |
|---|---|---|
| Miami International Holdings, Inc. (MIAX) | Director, Officer · Chairman & CEO | 16 |
Transactions
| Date | Company | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-03 | Miami International Holdings, Inc. | M | 47,000 | $12 | 1,470,275 | Form 4 |
| 2026-09-03 | Miami International Holdings, Inc. | S | 47,000 | $42.43 | 1,423,275 | Form 4 |
| 2026-09-03 | Miami International Holdings, Inc. | M | 16,666 | $12 | 760,605 | Form 4 |
| 2026-09-03 | Miami International Holdings, Inc. | M | 8,333 | $12 | 768,938 | Form 4 |
| 2026-09-03 | Miami International Holdings, Inc. | M | 13,140 | $15.22 | 782,078 | Form 4 |
| 2026-09-03 | Miami International Holdings, Inc. | M | 4,464 | $22.4 | 786,542 | Form 4 |
| 2026-08-19 | Miami International Holdings, Inc. | S | 149,700 | $41.13 | 1,423,275 | Form 4 |
| 2026-08-18 | Miami International Holdings, Inc. | F | 150,300 | $42.41 | 1,572,975 | Form 4 |
| 2026-08-04 | Miami International Holdings, Inc. | M | 48,334 | $12 | 1,771,609 | Form 4 |
| 2026-08-04 | Miami International Holdings, Inc. | S | 48,334 | $45.69 | 1,723,275 | Form 4 |
| 2026-07-13 | Miami International Holdings, Inc. | M | 70,000 | $12 | 1,793,275 | Form 4 |
| 2026-07-13 | Miami International Holdings, Inc. | S | 70,000 | $42.52 | 1,723,275 | Form 4 |
| 2026-07-07 | Miami International Holdings, Inc. | M | 28,228 | $12 | 1,751,503 | Form 4 |
| 2026-07-07 | Miami International Holdings, Inc. | S | 28,228 | $42.27 | 1,723,275 | Form 4 |
| 2026-07-06 | Miami International Holdings, Inc. | S | 41,772 | $42.09 | 1,723,275 | Form 4 |
| 2026-07-06 | Miami International Holdings, Inc. | M | 41,772 | $12 | 1,765,047 | Form 4 |
Questions
What stock did Gallagher Thomas P. buy or sell?
Gallagher Thomas P. reported 16 non-derivative transactions on 5 SEC ownership filings in Q3 2026: 0 open-market purchases and 6 sales ($16.3M), across 1 company.
Is Gallagher Thomas P. the same person as other filers with this name?
This page covers SEC CIK 2080477 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.
Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.
Plain-text version for agents and LLMs: /insiders/gallagher-thomas-p-2080477.md
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