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Insider / MARKETAXESS HOLDINGS INC

Fiszel Bieler Ilene

Chief Financial Officer at MARKETAXESS HOLDINGS INC

Company
MARKETAXESS HOLDINGS INC
Ticker
MKTX
First filing on record
February 17, 2026
Latest trade on record
June 3, 2026
SEC filings
EDGAR ↗

Fiszel Bieler Ilene, Chief Financial Officer at MARKETAXESS HOLDINGS INC, has disclosed 3 transactions in MKTX since February 17, 2026: 0 purchases (0 open-market buys) and 2 sales, worth about $120K at the reported prices. The latest was filed June 3, 2026, 0 days after the trade.

Last updated June 3, 2026 · Source: SEC EDGAR Form 4 filings

Transactions
3
Open-market buys
0
Sales
2
Avg. disclosure lag
1.3d

Trading in charts

Trade timeline

When does this person trade, how big, and in which direction? Every trade in the last 12 months.

Bought (above the line)Sold (below the line)Other transaction
Oct 25NovDecJan 26FebMarAprMayJunJulAugSep
Oct 25NovDecJan 26FebMarAprMayJunJulAugSep

In the last 12 months Fiszel Bieler Ilene made no purchases and 2 sales worth $120K, plus 1 other transaction. Dot size is the dollar amount.

Portfolio mix

Which stocks does this person trade most? Tile size is dollars traded, all time on record.

Fiszel Bieler Ilene has traded 1 stock on record; the largest by dollars is MKTX.

Reporting lag

Does this person report on time? One bar per filing against the Form 4 deadline.

On timeLate
Form 4 deadlineoldest filingnewest

0 of 2 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).

What kind of transactions

Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.

Rows by Form 4 transaction code
CodeMeaningRowsSharesValue
FShares withheld for tax2771$120K
AGrant or award15,005—
Rows by year of the trade
YearRowsBoughtSold
2026302 · $120K

Transactions

Download MKTX trades (CSV)58 rows · 21 KB · every filer in this ticker, this insider included · all downloads

SecuritySideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
MKTXSell FJune 3, 2026June 3, 20260d332$123$41KForm 4 ↗
MKTXSell FFebruary 15, 2026February 17, 20262d439$179$79KForm 4 ↗
MKTXOther AFebruary 15, 2026February 17, 20262d5,005——Form 4 ↗

Filings

FiledFormAccessionRowsStatusSource
June 3, 2026Form 40001193125-26-2554621publishedEDGAR ↗
February 17, 2026Form 40001193125-26-0548392publishedEDGAR ↗

Other insiders at MARKETAXESS HOLDINGS INC

Everyone on file, with contracts and lobbying under the company's name: MARKETAXESS HOLDINGS INC.

Guides for this page

Sources and method

Official sources behind this page
SourceFilingsRowsFirst filedNewest filedRead the originals
SEC EDGAR, Form 423February 17, 2026June 3, 2026Form 4 list on EDGAR

Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.

Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.

Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.