Form4insider filings, from the source

Company · CIK 0001278021 · SIC 6211 — Security Brokers, Dealers & Flotation Companies · Nasdaq

MARKETAXESS HOLDINGS INC · MKTX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.1M · 5net −$1.1M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 10, 2026 SForm 4 →Sep 11, 4:15 pm EDTScott PintoffGeneral Counsel and Secretary100$163.32$16,33211,486−0.86%10b5-1
Sep 10, 2026 SForm 4 →Sep 11, 4:15 pm EDTWilliam Frank Cruger Jr.Director6,164$163.20$1,005,9654,033−60.4%
Aug 12, 2026 GForm 4 →Aug 13, 4:15 pm EDTEmily Hope PortneyDirector4,170——1,571—
Aug 10, 2026 SForm 4 →Aug 10, 4:15 pm EDTScott PintoffGeneral Counsel and Secretary100$162.60$16,26011,586−0.86%10b5-1
Aug 7, 2026 GForm 4 →Aug 7, 4:15 pm EDTJane ChwickDirector606——9,223—
Jul 10, 2026 SForm 4 →Jul 10, 4:15 pm EDTScott PintoffGeneral Counsel and Secretary100$115.12$11,51211,686−0.85%10b5-1
Jun 18, 2026 GForm 4 →Jun 18, 4:30 pm EDTCarlos Mauricio HernandezDirector21,416——1,772—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTNancy A. AltobelloDirector1,390——5,152—
Jun 10, 2026 SForm 4 →Jun 12, 4:15 pm EDTScott PintoffGeneral Counsel and Secretary100$116.03$11,60311,786−0.84%10b5-1
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTDouglas A CifuDirector1,390——1,649—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTRichard G KetchumDirector1,390——6,093—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTEmily Hope PortneyDirector1,390——2,174—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTKenneth T SchicianoDirector1,390——1,945—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTJane ChwickDirector1,390——9,829—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTSteven L BegleiterDirector1,390——12,074—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTCarlos Mauricio HernandezDirector2,616——13,106—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTKourtney GibsonDirector1,390——4,542—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTRoberto HoornwegDirector1,390——2,389—
Jun 10, 2026 AForm 4 →Jun 12, 4:15 pm EDTWilliam Frank Cruger Jr.Director1,390——10,197—
Jun 3, 2026 FForm 4 →Jun 3, 4:15 pm EDTBieler Ilene FiszelChief Financial Officer332$123.18$40,8968,656—

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.