---
schema_version: "secwatch.filing_event.v1"
accession: "0001653482-26-000107"
form_type: "8-K"
ticker: "GTLB"
cik: "0001653482"
company_name: "Gitlab Inc."
filed_at: "2026-05-18T22:06:20+00:00"
generated_at: "2026-05-19T10:08:42.982689+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# GitLab founder Sijbrandij converts all super-voting Class B shares to Class A; 10b5-1 sale executed

## Summary
- Sytse Sijbrandij converted all Class B common stock (10 votes/share) to Class A (1 vote/share) on May 14, 2026.
- Conversion was for personal tax planning; Sijbrandij cited no disagreement with the company.
- A Rule 10b5-1 trading plan entered in December 2025 executed a transaction on May 18, 2026.
- Sijbrandij remains Executive Chair of the Board and the largest individual holder of Class A common stock.
- Conversion significantly reduces his voting power but his role and share ownership position are unchanged.

## SEC filing metadata
- accession: 0001653482-26-000107
- form_type: 8-K
- ticker: GTLB
- cik: 0001653482
- company_name: Gitlab Inc.
- filed_at: 2026-05-18T22:06:20+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1653482/000165348226000107/0001653482-26-000107-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1653482/000165348226000107/gtlb-20260518.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001653482-26-000107
- JSON: https://secwatch.observer/filing/0001653482-26-000107.json
- Plain text: https://secwatch.observer/filing/0001653482-26-000107.txt

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