---
schema_version: "secwatch.filing_event.v1"
accession: "0001683168-23-000104"
form_type: "8-K"
ticker: "ACTG"
cik: "0000934549"
company_name: "ACACIA RESEARCH CORP"
filed_at: "2023-01-09T23:59:59+00:00"
generated_at: "2026-06-20T18:30:35.272267+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Acacia CFO Richard Rosenstein resigns effective Jan 27; Kirsten Hoover named interim CFO

## Summary
- CFO Richard Rosenstein steps down Jan 27, 2023 to pursue private company opportunity; will serve as consultant through Apr 30, 2023 for $10,000 total.
- Kirsten Hoover, current Corporate Controller, appointed interim CFO effective Jan 28, 2023 with additional $15,000/month compensation.
- Board commenced search for permanent CFO with a leading executive search firm.
- Departure is not result of any dispute or disagreement with company.

## SEC filing metadata
- accession: 0001683168-23-000104
- form_type: 8-K
- ticker: ACTG
- cik: 0000934549
- company_name: ACACIA RESEARCH CORP
- filed_at: 2023-01-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/934549/000168316823000104/0001683168-23-000104-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/934549/000168316823000104/acacia_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001683168-23-000104
- JSON: https://secwatch.observer/filing/0001683168-23-000104.json
- Plain text: https://secwatch.observer/filing/0001683168-23-000104.txt

## Key facts
- Executive change
  Richard Rosenstein resigned as Chief Financial Officer at ACACIA RESEARCH CORP.
  - Action: resigned
  - Role: Chief Financial Officer
  source text: On January 3, 2023, Richard Rosenstein tendered his resignation as the Chief Financial Officer of Acacia Research Corporation, a Delaware corporation (the “ Company ”), effective as of January 27, 2023
  evidence_url: https://www.sec.gov/Archives/edgar/data/934549/000168316823000104/0001683168-23-000104-index.htm
- Executive change
  Kirsten Hoover was appointed as interim Chief Financial Officer at ACACIA RESEARCH CORP.
  - Action: appointed
  - Role: interim Chief Financial Officer
  source text: Effective January 28, 2023, Kirsten Hoover, the Company’s Corporate Controller, will be appointed as interim Chief Financial Officer of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/934549/000168316823000104/0001683168-23-000104-index.htm

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