---
schema_version: "secwatch.filing_event.v1"
accession: "0001381197-23-000054"
form_type: "8-K"
ticker: "IBKR"
cik: "0001381197"
company_name: "Interactive Brokers Group, Inc."
filed_at: "2023-07-26T23:59:59+00:00"
generated_at: "2026-06-13T02:15:55.620977+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Interactive Brokers registers 630,000 shares from shelf registration statement

## Summary
- Filed prospectus supplement to register 630,000 shares of common stock.
- Shelf registration Statement No. 333-273451 filed with SEC on July 26, 2023.
- Dechert LLP legal opinion on share validity filed as exhibit.
- Number of shares represents less than 1% of outstanding common stock.

## SEC filing metadata
- accession: 0001381197-23-000054
- form_type: 8-K
- ticker: IBKR
- cik: 0001381197
- company_name: Interactive Brokers Group, Inc.
- filed_at: 2023-07-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1381197/000138119723000054/0001381197-23-000054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1381197/000138119723000054/ibkr-20230726x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001381197-23-000054
- JSON: https://secwatch.observer/filing/0001381197-23-000054.json
- Plain text: https://secwatch.observer/filing/0001381197-23-000054.txt

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