FEDERALUnknownFinancial ServicesTechnologyFinanceLow
MARKETAXESS HOLDINGS INC
bd_39a6517de7d43c7e · schema v1 · pii pii-v1
Full breach record for MARKETAXESS HOLDINGS INC →MarketAxess Holdings Inc. (CIK 0001278021) Form 10-K annual report for fiscal year ended December 31, 2025. The supplied document body contains only the XBRL header, cover-page metadata, and form identification — no narrative cybersecurity incident disclosure (Item 1C content) is present in the provided excerpt. No breach details, affected individual counts, threat actor information, or remediation actions are extractable from this content.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://www.sec.gov/Archives/edgar/data/1278021/000119312526067009/mktx-20251231.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
- Filed at
- Feb 24, 2026
- Raw hash
- 3d56c65b0f86c5405d1ebfc7eafb5a9e83c4fc8d3e191d861df495e9de5fc3fb
Source filing
AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.
Reporting entity
- Name
- MARKETAXESS HOLDINGS INCnorm: marketaxess holdings
- SEC CIK
- 0001278021
Victim entity
- Name
- MARKETAXESS HOLDINGS INCnorm: marketaxess holdings
- SEC CIK
- 1278021
- Industry
- Financial ServicesllmTechnologyllm
Incident
- Discovered
- —
- Materiality determined
- —
- Notification sent
- —
- Affected individuals
- Not disclosed
- Data types
- —
- Attack vector
- Unknown
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.