$MIAX insider trading
Over the last 12 months, Miami International Holdings insiders reported 5 buys totaling $723K and 51 sales totaling $68.6M across SEC Form 4 filings. 89% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $723K 5 events
- Sold · 12m
- $68.6M 51 events
- Events · 12m
- 56 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 89% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 149,700 | $41.13 | $6.2M | -9.5% | plan · indirect |
| Aug 17, 2026 | Schwarzkopf CynthiaD | ▼ Sale | 5,000 | $42.85 | $214K | -5.3% | plan |
| Aug 17, 2026 | Emmons LanceEVP and CFO · O | ▼ Sale | 35,000 | $42.83 | $1.5M | -28.8% | plan |
| 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 |
| May 5, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 15,771 | $47.92 | $756K | -0.9% | plan · indirect |
| May 4, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 28,000 | $47.26 | $1.3M | -3.2% | plan |
| May 4, 2026 | Eckert Kurt M.D | ▼ Sale | 5,625 | $47.29 | $266K | -3.8% | plan |
| May 4, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 16,000 | $47.28 | $756K | -4.7% | plan |
| May 4, 2026 | Schafer Douglas M. JREVP and CIO · O | ▼ Sale | 48,000 | $47.25 | $2.3M | -10.8% | plan |
| May 4, 2026 | Teekell Judson GrayD | ▼ Sale | 3,000 | $47.3 | $142K | -5.1% | plan |
| May 4, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 54,229 | $47.26 | $2.6M | -3.1% | plan · indirect |
| May 4, 2026 | Deitzel EdwardEVP, CRO, CCO MIAX Exchanges · O | ▼ Sale | 11,000 | $47.28 | $520K | -8.6% | plan |
| Apr 15, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 49,900 | $43.68 | $2.2M | -9.3% | plan |
| Apr 15, 2026 | Gallagher Thomas P.Chairman & CEO · O·D | ▼ Sale | 174,125 | $43.36 | $7.6M | -9.2% | plan · 2 tranches · indirect |
| Apr 15, 2026 | Comly Barbara J.EVP, GC & Corporate Secretary · O | ▼ Sale | 29,667 | $43.64 | $1.3M | -3.4% | plan |
| Apr 8, 2026 | Deitzel EdwardEVP, CRO, CCO MIAX Exchanges · O | ▼ Sale | 12,335 | $42.01 | $518K | -9.6% | plan · 3 tranches |
| Apr 8, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 16,434 | $42.08 | $692K | -4.8% | plan |
| Apr 7, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 3,257 | $41.52 | $135K | -1% | plan · 2 tranches |
| Apr 2, 2026 | Teekell Judson GrayD | ▼ Sale | 2,700 | $40 | $108K | -4.4% | plan |
| Mar 25, 2026 | Teekell Judson GrayD | ▼ Sale | 300 | $40 | $12K | -0.5% | plan |
| Mar 23, 2026 | Brown ShellyEVP, Chief Strategy Officer · O | ▼ Sale | 25,932 | $39.33 | $1.0M | -8% | plan |
| Mar 19, 2026 | Eckert Kurt M.D | ▼ Sale | 37,917 | $39 | $1.5M | -21% | plan |
| Mar 17, 2026 | Schafer Douglas M. JREVP and CIO · O | ▼ Sale | 48,000 | $39.74 | $1.9M | -10.8% | plan |
Every $MIAX filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Miami International Holdings filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. 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.