---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-26-029964"
form_type: "8-K/A"
ticker: "LAB"
cik: "0001162194"
company_name: "STANDARD BIOTOOLS INC."
filed_at: "2026-07-29T12:15:46+00:00"
generated_at: "2026-07-29T12:20:24.750873+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Standard BioTools signs definitive agreement to sell mass cytometry business to Multiplex Bio Inc.

## Summary
- Agreement dated July 28, 2026, for sale of mass cytometry business (CyTOF, Hyperion, Maxpar, Theia platforms) to Multiplex Bio Inc.
- Consideration includes Base Seller Note and Seller Working Capital Note; additional contingent consideration tied to Qualifying Exit.
- Sale subject to stockholder approval, regulatory clearances, and other customary conditions.
- Concurrently, Standard BioTools is pursuing acquisition of Treeline and potential sale of microfluidics business.
- Definitive agreement includes transition services, IP assignments, and other ancillary documents.

## SEC filing metadata
- accession: 0001140361-26-029964
- form_type: 8-K/A
- ticker: LAB
- cik: 0001162194
- company_name: STANDARD BIOTOOLS INC.
- filed_at: 2026-07-29T12:15:46+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1162194/000114036126029964/0001140361-26-029964-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1162194/000114036126029964/ef20078945_8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-26-029964
- JSON: https://secwatch.observer/filing/0001140361-26-029964.json
- Plain text: https://secwatch.observer/filing/0001140361-26-029964.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.