---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-143662"
form_type: "8-K"
ticker: "TER"
cik: "0000097210"
company_name: "TERADYNE, INC"
filed_at: "2025-06-20T23:59:59+00:00"
generated_at: "2026-05-19T02:26:28.757191+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Teradyne amends bylaws, adjusts shareholder nomination and proposal deadlines

## Summary
- Director nomination and proposal notice window changed to 90-120 days before annual meeting (previously 60-90 days).
- For 2026 annual meeting, notice must be delivered between Jan 9, 2026 and Feb 8, 2026.
- Updates to procedural, notice and information requirements for nominations, proposals, and proxy access.
- Clarifies plurality voting standard for contested elections and chairperson's meeting authority.
- Other administrative and conforming changes effective June 20, 2025.

## SEC filing metadata
- accession: 0001193125-25-143662
- form_type: 8-K
- ticker: TER
- cik: 0000097210
- company_name: TERADYNE, INC
- filed_at: 2025-06-20T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 3.03, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97210/000119312525143662/0001193125-25-143662-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97210/000119312525143662/d32721d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-143662
- JSON: https://secwatch.observer/filing/0001193125-25-143662.json
- Plain text: https://secwatch.observer/filing/0001193125-25-143662.txt

## Key facts
- Governance Changes
  TERADYNE, INC: On June 20, 2025, the Board of Directors amended and restated the By-Laws, adjusting director nomination and shareholder proposal notice windows, updating procedural and information requirements for nominations and proposals, clarifying plurality voting standard in contested elections, and clarifyin (effective 2025-06-20).
  - Change: bylaw amendment
  - Effective: 2025-06-20
  source text: In connection with its periodic review of the Amended and Restated By-Laws (the “ By-Laws ”) of Teradyne, Inc. (the “ Company ”), on June 20, 2025, the Board of Directors of the Company amended and restated the By-Laws effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/97210/000119312525143662/0001193125-25-143662-index.htm

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