---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-317535"
form_type: "8-K"
ticker: "SEER"
cik: "0001726445"
company_name: "Seer, Inc."
filed_at: "2025-12-12T23:59:59+00:00"
generated_at: "2026-05-16T13:22:16.216387+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Seer converts all Class B stock to Class A, ending dual-class voting

## Summary
- All outstanding Class B shares automatically converted into Class A on a 1:1 basis at close of business Dec. 9, 2025.
- Following conversion, Class B shares retired; authorized capital reduced via Certificate of Retirement filed Dec. 12, 2025.
- Each prior Class B share had ten votes; now holders have one vote per share under Class A.
- Economic interests unchanged; stock continues trading on Nasdaq under ticker SEER.

## SEC filing metadata
- accession: 0001193125-25-317535
- form_type: 8-K
- ticker: SEER
- cik: 0001726445
- company_name: Seer, Inc.
- filed_at: 2025-12-12T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1726445/000119312525317535/0001193125-25-317535-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1726445/000119312525317535/ck0001726445-20251209.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-317535
- JSON: https://secwatch.observer/filing/0001193125-25-317535.json
- Plain text: https://secwatch.observer/filing/0001193125-25-317535.txt

## Key facts
- Governance Changes
  Seer, Inc.: Filed Certificate of Retirement to reduce authorized shares of capital stock and Class B Common Stock following automatic conversion of Class B to Class A shares (effective 2025-12-12).
  - Change: charter amendment
  - Effective: 2025-12-12
  source text: on December 12, 2025, the Company filed the Certificate of Retirement with the Secretary of State of the State of Delaware in connection with the retirement of the shares of Class B Common Stock that were issued but not outstanding following the Conversion and to accordingly reduce the Company's total number of authorized shares of capital stock and the Company's total number of authorized shares of Class B Common Stock by an amount equal to the number of retired shares of Class B Common Stock.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1726445/000119312525317535/0001193125-25-317535-index.htm

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