---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-071136"
form_type: "8-K"
ticker: null
cik: "0001838672"
company_name: "AdTheorent Holding Company, Inc."
filed_at: "2023-12-18T23:59:59+00:00"
generated_at: "2026-06-07T11:26:40.403522+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# AdTheorent amends bylaws to align with SEC universal proxy rules and DGCL updates

## Summary
- Board adopted Second Amended and Restated Bylaws effective December 18, 2023.
- Amendments harmonize director nomination and business proposal requirements with SEC Rule 14a-19 (universal proxy).
- Modified stockholder list and adjournment provisions to reflect DGCL amendments.
- Includes ministerial, clarifying, and conforming changes.

## SEC filing metadata
- accession: 0000950170-23-071136
- form_type: 8-K
- cik: 0001838672
- company_name: AdTheorent Holding Company, Inc.
- filed_at: 2023-12-18T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1838672/000095017023071136/0000950170-23-071136-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1838672/000095017023071136/adth-20231218.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-071136
- JSON: https://secwatch.observer/filing/0000950170-23-071136.json
- Plain text: https://secwatch.observer/filing/0000950170-23-071136.txt

## Key facts
- Governance Changes
  AdTheorent Holding Company, Inc.: Adopted second amended and restated bylaws effective immediately, including updates for universal proxy rules, DGCL changes, and ministerial changes (effective 2023-12-18).
  - Change: bylaw amendment
  - Effective: 2023-12-18
  source text: On December 18, 2023, the Board adopted the second amended and restated bylaws (the “Second Amended and Restated Bylaws”), effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1838672/000095017023071136/0000950170-23-071136-index.htm

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