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Insider Trading Intelligence
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SB

Shelly Brown

MIAX
EVP, CHIEF STRATEGY OFFICER · MIAMI INTERNATIONAL HOLDINGS, INC. · CIK 0002080506
FILING MIX · LIFETIME43%/57%
BUYS
29
SELLS
39
TOTAL VALUE
$7.12M
COMPANIES
1
ACTIVE SINCE
Aug 2025
HOLDINGS NOW
35,861
AVG SELL PX
$40.68
TRADE KIND
SHOWING 68 / 68
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 18 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Shelly Brown, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d5+20.00%+3.58%+2.48%+1.10%-0.47%—
14d5+0.00%+8.76%+4.70%+4.06%+1.99%—
30d5+20.00%+14.76%+9.99%+8.50%+8.38%—
60d5+60.00%+5.81%+9.90%-12.50%-15.79%—
90d5(3 pending)+100.00%-2.78%+13.48%-16.26%-16.26%—
180d5(5 pending)——————
1y5(5 pending)——————
2y5(5 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MIAX · 35,861 shares · as of Jun 16, 2026
088,498176,995265,493353,9902026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2025
2025
2026
2026
FLOW · 29 buys / 39 sellsCOVERAGE · 4 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASEGRANT
Stock grant
35,861——35,861Jun 16, 2026Jun 18, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASEGRANT
Stock grant
37,276——353,990Jun 16, 2026Jun 18, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASEGRANT
Stock grant
2,485——2,485Jun 16, 2026Jun 18, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
4,714$44.23$208.5K316,714Jun 15, 2026Jun 17, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
3,619$40.79$147.6K321,428Jun 11, 2026Jun 12, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
16,000$12.00$192.0K341,047Jun 2, 2026Jun 4, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
16,000——16,000Jun 2, 2026Jun 4, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
16,000$42.12$673.9K325,047Jun 2, 2026Jun 4, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
16,000$12.00$192.0K341,047May 4, 2026May 5, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
16,000——32,000May 4, 2026May 5, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
16,000$47.28$756.5K325,047May 4, 2026May 5, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
16,434$42.08$691.5K325,047Apr 8, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
16,434——48,000Apr 8, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
16,434$12.00$197.2K341,481Apr 8, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
900——64,434Apr 7, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
900$42.00$37.8K324,147Apr 7, 2026Apr 8, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
900$42.00$37.8K325,047Apr 7, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
900$12.00$10.8K325,947Apr 7, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,357$41.33$97.4K325,047Apr 6, 2026Apr 8, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,357$41.33$97.4K325,047Apr 6, 2026Apr 9, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
3,878——0Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
6,570——0Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
1,809$37.50$67.8K297,388Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
8,333$12.00$100.0K305,721Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
6,570$15.22$100.0K312,291Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
8,333——0Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
3,878$25.78$100.0K322,364Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
6,195——0Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
6,195$16.14$100.0K318,486Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
5,040——0Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
5,040$19.84$100.0K327,404Mar 30, 2026Apr 1, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
25,932$39.33$1.02M299,197Mar 23, 2026Mar 24, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
19,902$40.89$813.8K325,129Feb 18, 2026Feb 20, 2026 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
8,333——0Dec 16, 2025Dec 17, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
16,666$12.00$200.0K328,365Dec 16, 2025Dec 17, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
8,333$12.00$100.0K336,698Dec 16, 2025Dec 17, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Chief Strategy Officer
16,666——0Dec 16, 2025Dec 17, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Chief Strategy Officer
8,333$12.00$100.0K345,031Dec 16, 2025Dec 17, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
16,283$36.81$599.4K311,699Sep 10, 2025Sep 11, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
11,047$33.90$374.5K327,982Aug 26, 2025Aug 28, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
41,667——41,667Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
143,430——143,430Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
200,475——339,029Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
143,430——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
65,334——65,334Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
65,334——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
41,667——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
200,475——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
46,121——46,121Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
18,804——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
18,804——18,804Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
46,121——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
8,333——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
16,666——16,666Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
16,666——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
91,667——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
6,195——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
6,570——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
500——339,029Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
141,667——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
500——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
141,667——141,667Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
6,195——6,195Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
8,333——8,333Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
SALE
EVP, Strat. Planning & BD
3,878——0Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
91,667——91,667Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
3,878——3,878Aug 15, 2025Aug 19, 2025 ↗View →
MIAX
MIAMI INTERNATIONAL HOLDINGS, INC.
PURCHASE
EVP, Strat. Planning & BD
6,570——6,570Aug 15, 2025Aug 19, 2025 ↗View →
Other insiders · MIAX
Loading peer insiders…
About this filer
CIK 0002080506
ROLE
EVP, Chief Strategy Officer
PRIMARY
MIAX
COMPANIES
1
ACTIVE SINCE
Aug 2025
MARKETPEEL · /INSIDER/0002080506DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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