---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-071195"
form_type: "8-K"
ticker: "LAB"
cik: "0001162194"
company_name: "STANDARD BIOTOOLS INC."
filed_at: "2026-06-08T12:31:21+00:00"
generated_at: "2026-06-08T12:36:33.546452+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 1.0
calibrated_materiality_score: 1.0
confidence: "high"
source: SEC EDGAR
---

# Standard BioTools to merge with Treeline Biosciences in all-stock deal; LAB stockholders to own ~16%

## Summary
- All-stock merger; Treeline valued at $2.5B, Standard BioTools at ~$460M; combined co. to be named Treeline Biosciences Holdings.
- Former LAB stockholders to hold ~16% of combined co., Treeline stockholders ~84%; closing expected H2 2026.
- Legacy mass cytometry/microfluidics business to be sold or wound down; CVRs issued to LAB stockholders for proceeds.
- Treeline CEO Josh Bilenker to lead combined co.; board to have 12 members, 10 from Treeline, 2 from LAB.
- Voting agreements covering ~39% of LAB shares; termination fee of $16.1M payable by LAB in certain circumstances.

## SEC filing metadata
- accession: 0001104659-26-071195
- form_type: 8-K
- ticker: LAB
- cik: 0001162194
- company_name: STANDARD BIOTOOLS INC.
- filed_at: 2026-06-08T12:31:21+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 1.0
- calibrated_materiality_score: 1.0
- confidence: high
- sec_items: 1.01, 3.02, 5.01, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1162194/000110465926071195/0001104659-26-071195-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1162194/000110465926071195/tm2617100d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-071195
- JSON: https://secwatch.observer/filing/0001104659-26-071195.json
- Plain text: https://secwatch.observer/filing/0001104659-26-071195.txt

## Key facts
- Material Agreements
  STANDARD BIOTOOLS INC. entered into Agreement and Plan of Merger and Reorganization with Treeline Biosciences, Inc. (effective 2026-06-06).
  - Action: entry
  - Agreement: merger
  - Counterparty: Treeline Biosciences, Inc.
  - Effective: 2026-06-06
  source text: Standard BioTools Inc., a Delaware corporation (“Standard BioTools”), entered into an Agreement and Plan of Merger and Reorganization (the “Merger Agreement”) with Treeline Biosciences, Inc., a Delaware corporation (“Treeline”), and Siri Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Standard BioTools (“Merger Sub”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1162194/000110465926071195/0001104659-26-071195-index.htm

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