---
schema_version: "secwatch.filing_event.v1"
accession: "0001595974-21-000045"
form_type: "8-K"
ticker: "MGNI"
cik: "0001595974"
company_name: "MAGNITE, INC."
filed_at: "2021-07-02T23:59:59+00:00"
generated_at: "2026-06-30T07:35:45.765581+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Magnite appoints Brian Gephart as Chief Accounting Officer; extends credit facility by $12.5M

## Summary
- Brian Gephart appointed CAO effective June 28, 2021; previously CFO of Leaf Group.
- Gephart receives one-time equity award: 18,268 RSUs and options for 13,594 shares at $34.68, vesting over 4 years.
- Revolving credit facility increased by $12.5M; letter of credit sublimit raised by $5M; terms unchanged.
- Annual meeting results: elected Class I directors Frankenberg, Harden, Rossman; ratified Deloitte; approved exec compensation.

## SEC filing metadata
- accession: 0001595974-21-000045
- form_type: 8-K
- ticker: MGNI
- cik: 0001595974
- company_name: MAGNITE, INC.
- filed_at: 2021-07-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 5.02, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1595974/000159597421000045/0001595974-21-000045-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1595974/000159597421000045/mgni-20210628.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001595974-21-000045
- JSON: https://secwatch.observer/filing/0001595974-21-000045.json
- Plain text: https://secwatch.observer/filing/0001595974-21-000045.txt

## Key facts
- Executive change
  Brian Gephart was appointed as Chief Accounting Officer at MAGNITE, INC..
  - Action: appointed
  - Role: Chief Accounting Officer
  source text: On June 28, 2021, the Company appointed Brian Gephart as Chief Accounting Officer of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1595974/000159597421000045/0001595974-21-000045-index.htm

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