Arkolith/Insider Trading/MKTX/Form 4

Concannon Christopher R

Chief Executive Officer, DirectorMARKETAXESS HOLDINGS INC (MKTX) · full profile →Form 4 · filed Feb 17, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
5
4 non-derivative · 1 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 15, 2026Tax withholding(F)2K$179.36$314K54K
Feb 15, 2026Tax withholding(F)866$179.36$155K49K
Feb 15, 2026Grant(A)7K—$056K
Feb 13, 2026Grant(A)2K—$050K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 15, 2026Grant(A)22K—$022K

Transaction Codes

F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-054840) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML