---
schema_version: "secwatch.filing_event.v1"
accession: "0001381197-21-000029"
form_type: "8-K"
ticker: "IBKR"
cik: "0001381197"
company_name: "Interactive Brokers Group, Inc."
filed_at: "2021-07-30T23:59:59+00:00"
generated_at: "2026-06-30T00:18:35.881232+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Interactive Brokers completes takedown of 6.08M shares from shelf registration

## Summary
- Takedown of 6,079,542 common shares from existing shelf Registration Statement on Form S-3.
- Legal opinion of Dechert LLP on share validity filed as Exhibit 5.4 and incorporated by reference.
- Registration Statement originally filed July 27, 2020; no material operational or financial update.

## SEC filing metadata
- accession: 0001381197-21-000029
- form_type: 8-K
- ticker: IBKR
- cik: 0001381197
- company_name: Interactive Brokers Group, Inc.
- filed_at: 2021-07-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1381197/000138119721000029/0001381197-21-000029-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1381197/000138119721000029/ibkr-20210730x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001381197-21-000029
- JSON: https://secwatch.observer/filing/0001381197-21-000029.json
- Plain text: https://secwatch.observer/filing/0001381197-21-000029.txt

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