Transaction · 0001628280-26-057950

Schwarzkopf Cynthia

Schwarzkopf Cynthia, DIR, reported an open-market or private sale at MIAMI INTERNATIONAL HOLDINGS, INC. involving 5000.000000 shares for an estimated $214250.00. Reported holdings after the transaction were 88545.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SDIR
MIAXMIAMI INTERNATIONAL HOLDINGS, INC.
Filing timeAug 19
Trade dateAug 17, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$40.60
Pre-filing
1mo ago +4.3%1w ago +7.4%1d ago +7.2%
Returns since
7d +6.9%30d +3.7%90d +3.7%180d +3.7%1y +3.7%

MIAX price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
MIAX since 2026-08-19Filed 16 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001628280-26-057950
Common Stock
Transaction date
Aug 17, 2026
Filed Aug 19, 2026, 08:12 PM · 2d delay
Shares
5.00k sh
$4.28k per share
Estimated value
-$21.4M
Computed from shares × price
Holdings after
88.5k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership 10b5-1 Detected
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026.

  2. F2

    This transaction was executed in multiple trades throughout the day at prices ranging from $42.54 to $43.33. The price reported above reflects the weighted average sales price. The Reporting Person he…

  3. F3

    The options are fully vested.

Original filing · 0001628280-26-057950
Related transactions

0 other filings

Same reporting owner
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