Shelly Brown
CIK 2080506 · EVP, Chief Strategy Officer · last filed 2026-07-07
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$15.69M
Companies
1
Total Filings
22
Lifetime Open-Market Net
-$4.29M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MIAX | EVP, Chief Strategy Officer | 369,990 | $42.41 | $15.69M | -$4.29M | 16 | 2026-07-07 |
Recent Filings · Page 2 of 3
22 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-09 | MIAX | Mixed | −2,357 | -$124.4K | EDGAR |
| 2026-04-08 | MIAX | Sell (S) | −3,257 | -$135.2K | EDGAR |
| 2026-04-07 | MIAX | Notice (144) | −17,334 | -$721.6K | EDGAR |
| 2026-04-06 | MIAX | Notice (144) | −2,357 | -$94.7K | EDGAR |
| 2026-04-01 | MIAX | Mixed | +28,207 | $432.1K | EDGAR |
| 2026-03-24 | MIAX | Sell (S) | −25,932 | -$1.02M | EDGAR |
| 2026-03-23 | MIAX | Notice (144) | −25,932 | -$1.01M | EDGAR |
| 2026-02-20 | MIAX | Tax (F) | −19,902 | -$813.8K | EDGAR |
| 2025-12-17 | MIAX | Exer (M) | +33,332 | $400.0K | EDGAR |
| 2025-09-11 | MIAX | Tax (F) | −16,283 | -$599.4K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.