SEC Form 4Coverage since Jun 2, 2026
$MIAX insider trading
Over the last 12 months, Miami International Holdings insiders reported no purchases and 28 sales totaling $30.3M across SEC Form 4 filings. 100% of the activity was filed under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $30.3M 28 events
- Events · 12m
- 28 Form 4 filings, grouped
- Insiders · 12m
- 9 distinct reporters
- 10b5-1 share
- 100% pre-arranged plans
Side
Price · $MIAX · 12Mvia TradingView
Top insiders · 12m
Comly Barbara J.EVP, GC & Corporate Secretary4× · $5.6M
Gallagher Thomas P.Chairman & CEO4× · $11.1M
Teekell Judson Gray—3× · $386K
Eckert Kurt M.—3× · $480K
Deitzel EdwardEVP, CRO, CCO MIAX Exchanges3× · $1.4M
All insider trades
28 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 44,445 | $45.69 | $2.0M | -4.8% | plan |
| Aug 4, 2026 | Eckert Kurt M.D | ▼ Sale | 1,063 | $45.8 | $49K | -0.7% | plan |
| Aug 4, 2026 | Deitzel EdwardEVP, CRO, CCO MIAX Exchanges · O | ▼ Sale | 11,000 | $45.78 | $504K | -8.4% | plan |
| Aug 4, 2026 | Jayabalan HarishEVP, CISO and CRO · O | ▼ Sale | 20,000 | $45.9 | $918K | -20.4% | plan |
| Aug 4, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 48,334 | $45.69 | $2.2M | -2.7% | plan · indirect |
| Aug 4, 2026 | Schafer Douglas M. JREVP and CIO · O | ▼ Sale | 48,000 | $45.71 | $2.2M | -11% | plan |
| Aug 4, 2026 | Teekell Judson GrayD | ▼ Sale | 3,000 | $45.79 | $137K | -4% | plan |
| Jul 15, 2026 | Schwarzkopf CynthiaD | ▼ Sale | 5,000 | $42 | $210K | -5.3% | plan |
| Jul 13, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 28,000 | $41.98 | $1.2M | -3.1% | plan |
| Jul 13, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 70,000 | $42.52 | $3.0M | -3.9% | plan · indirect |
| Jul 7, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 70,000 | $42.16 | $3.0M | -3.9% | plan · 2 tranches · indirect |
| Jul 6, 2026 | Jayabalan HarishEVP, CISO and CRO · O | ▼ Sale | 20,000 | $42.12 | $842K | -20.4% | plan |
| Jul 6, 2026 | Deitzel EdwardEVP, CRO, CCO MIAX Exchanges · O | ▼ Sale | 11,000 | $42.04 | $462K | -8.4% | plan |
| Jul 6, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 16,000 | $42.13 | $674K | -4.3% | plan |
| Jul 2, 2026 | Teekell Judson GrayD | ▼ Sale | 3,000 | $40 | $120K | -3.8% | plan |
| Jul 2, 2026 | Eckert Kurt M.D | ▼ Sale | 5,250 | $39.35 | $207K | -3.4% | plan |
| Jul 2, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 28,000 | $41.22 | $1.2M | -3.1% | plan |
| Jul 2, 2026 | Schafer Douglas M. JREVP and CIO · O | ▼ Sale | 48,000 | $41.22 | $2.0M | -11% | plan |
| Jun 15, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 4,714 | $44.23 | $209K | -1.5% | plan |
| Jun 11, 2026 | Schwarzkopf CynthiaD | ▼ Sale | 19,500 | $41.73 | $814K | -19.3% | plan |
| Jun 9, 2026 | Jayabalan HarishEVP, CISO and CRO · O | ▼ Sale | 20,000 | $40.08 | $802K | -21.4% | plan · 2 tranches |
| Jun 2, 2026 | Teekell Judson GrayD | ▼ Sale | 3,000 | $42.78 | $128K | -4.1% | plan |
| Jun 2, 2026 | Eckert Kurt M.D | ▼ Sale | 5,250 | $42.76 | $224K | -3.6% | plan |
| Jun 2, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 28,000 | $42.85 | $1.2M | -3.2% | plan |
| Jun 2, 2026 | Deitzel EdwardEVP, CRO, CCO MIAX Exchanges · O | ▼ Sale | 11,000 | $42.16 | $464K | -8.6% | plan |
| Jun 2, 2026 | Schafer Douglas M. JREVP and CIO · O | ▼ Sale | 48,000 | $42.84 | $2.1M | -10.8% | plan |
| Jun 2, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 16,000 | $42.12 | $674K | -4.7% | plan |
| Jun 2, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 70,000 | $42.36 | $3.0M | -3.9% | plan · indirect |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $MIAX feed.