Arkolith/Insider Trading/MIAX/Form 4

Schafer Douglas M. JR

EVP and CIOMIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) · full profile →Form 4 · filed Jul 7, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$2.0M
Net Open-Market Flow
-$2.0M
Transactions
5
3 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jul 2, 2026Option exercise(M)6K$12.00$72K393K
Jul 2, 2026Option exercise(M)42K$12.00$504K435K
Jul 2, 2026Sell(S)48K$41.22$2.0M387K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Jul 2, 2026Option exercise(M)6K—$00
Jul 2, 2026Option exercise(M)42K—$091K

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001628280-26-047484) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML