---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-019450"
form_type: "8-K"
ticker: "GEOS"
cik: "0001001115"
company_name: "GEOSPACE TECHNOLOGIES CORP"
filed_at: "2023-07-06T23:59:59+00:00"
generated_at: "2026-06-13T11:29:21.717924+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Geospace CTO Michael Sheen retires; Robbin Adams appointed as successor

## Summary
- Michael Sheen retired as SVP & CTO effective June 30, 2023; consulting agreement for $250/hr starting July 1.
- Sheen receives salary continuation (paid after 6 months, not before Jan 2024), prorated FY2023 bonus, and full vesting of unvested RSUs.
- Robbin Adams, former EVP & Chief Product Engineer since 2012, appointed SVP & CTO effective July 1, 2023.
- Consulting term is one year, auto-renewing; either party may terminate with 30 days' notice.

## SEC filing metadata
- accession: 0001437749-23-019450
- form_type: 8-K
- ticker: GEOS
- cik: 0001001115
- company_name: GEOSPACE TECHNOLOGIES CORP
- filed_at: 2023-07-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1001115/000143774923019450/0001437749-23-019450-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1001115/000143774923019450/geos20230705_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-019450
- JSON: https://secwatch.observer/filing/0001437749-23-019450.json
- Plain text: https://secwatch.observer/filing/0001437749-23-019450.txt

## Key facts
- Executive change
  Michael J. Sheen departed as Senior Vice President and Chief Technical Officer at GEOSPACE TECHNOLOGIES CORP.
  - Action: retired and resigned
  - Role: Senior Vice President and Chief Technical Officer
  source text: Michael J. Sheen notified Geospace Technologies Corporation (the “Company”) of his intention to retire and resign from his position as Senior Vice President and Chief Technical Officer of the Company, to be effective June 30, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1001115/000143774923019450/0001437749-23-019450-index.htm
- Executive change
  Robbin B. Adams was appointed as Senior Vice President and Chief Technical Officer at GEOSPACE TECHNOLOGIES CORP.
  - Action: appointed
  - Role: Senior Vice President and Chief Technical Officer
  source text: On June 30, 2023, the Company appointed Robbin B. Adams, age 65, as Senior Vice President and Chief Technical Officer of the Company effective July 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1001115/000143774923019450/0001437749-23-019450-index.htm

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