---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-383630"
form_type: "8-K"
ticker: "RMBS"
cik: "0000917273"
company_name: "RAMBUS INC"
filed_at: "2026-09-04T20:05:06+00:00"
generated_at: "2026-09-04T20:06:08.591838+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Rambus CAO John Allen to retire; William Taulbee appointed as successor

## Summary
- John Allen, VP Accounting and CAO, retires effective Sept 8, 2026; stays through Sept 30 for transition.
- William Taulbee appointed VP and CAO effective Sept 8, 2026; previously at Gartner and Western Digital.
- Taulbee compensation: $355k base, $142k target bonus, $175k sign-on over 2 years, $700k RSU vesting over 4 years.
- Retirement not due to any disagreement with company operations, policies, or practices.

## SEC filing metadata
- accession: 0001193125-26-383630
- form_type: 8-K
- ticker: RMBS
- cik: 0000917273
- company_name: RAMBUS INC
- filed_at: 2026-09-04T20:05:06+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/917273/000119312526383630/0001193125-26-383630-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/917273/000119312526383630/d80115d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-383630
- JSON: https://secwatch.observer/filing/0001193125-26-383630.json
- Plain text: https://secwatch.observer/filing/0001193125-26-383630.txt

## Key facts
- Executive change
  William Taulbee was appointed as Vice President and Chief Accounting Officer at RAMBUS INC.
  - Action: appointed
  - Role: Vice President and Chief Accounting Officer
  source text: On August 31, 2026, the Company’s board of directors appointed William Taulbee to succeed Mr. Allen as Vice President and Chief Accounting Officer serving as the Company’s Principal Accounting Officer, effective as of September 8, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/917273/000119312526383630/0001193125-26-383630-index.htm
- Executive change
  John Allen departed as Vice President, Accounting and Chief Accounting Officer at RAMBUS INC.
  - Action: retire
  - Role: Vice President, Accounting and Chief Accounting Officer
  source text: On August 31, 2026, John Allen, Vice President, Accounting and Chief Accounting Officer of Rambus Inc. (the “ Company ”), provided notice of his decision to retire, including from his role as Principal Accounting Officer of the Company, effective as of September 8, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/917273/000119312526383630/0001193125-26-383630-index.htm

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