---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-006416"
form_type: "8-K"
ticker: "CBOE"
cik: "0001374310"
company_name: "Cboe Global Markets, Inc."
filed_at: "2026-01-26T23:59:59+00:00"
generated_at: "2026-05-16T07:52:33.049679+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Cboe Global Markets COO Chris Isaacson to retire; Scott Johnston appointed successor

## Summary
- Isaacson retires March 6, 2026; will serve as consultant through Dec. 31, 2026 for $541,666.
- Scott Johnston, ex-Akuna Capital COO, joins Feb. 17, 2026 as EVP, COO effective March 7.
- Johnston gets $550K base salary, 130% target bonus, $2.735M LTI, $1M sign-on equity, $627K cash bonus.
- Heidi Fischer named EVP, Global Head of Equities and Spot Markets; Natan Tiefenbrun departs.
- Alex Dalley promoted to SVP, European Equities; Jon Weinberg expands to Global FX and Off-Exchange.

## SEC filing metadata
- accession: 0001104659-26-006416
- form_type: 8-K
- ticker: CBOE
- cik: 0001374310
- company_name: Cboe Global Markets, Inc.
- filed_at: 2026-01-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1374310/000110465926006416/0001104659-26-006416-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1374310/000110465926006416/tm263772d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-006416
- JSON: https://secwatch.observer/filing/0001104659-26-006416.json
- Plain text: https://secwatch.observer/filing/0001104659-26-006416.txt

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