---
schema_version: "secwatch.filing_event.v1"
accession: "0001381197-23-000061"
form_type: "8-K"
ticker: "IBKR"
cik: "0001381197"
company_name: "Interactive Brokers Group, Inc."
filed_at: "2023-07-27T23:59:59+00:00"
generated_at: "2026-06-13T00:07:21.223709+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "medium"
source: SEC EDGAR
---

# Interactive Brokers takes down 2.6M shares from shelf registration

## Summary
- Filed Prospectus Supplement under Rule 424(b)(5) to take down 2,632,748 shares of common stock.
- Shares taken off existing shelf Registration Statement on Form S-3 filed July 26, 2023.
- Legal opinion from Dechert LLP on share validity included as exhibit.
- No pricing, use of proceeds, or selling stockholder details disclosed in 8-K.

## SEC filing metadata
- accession: 0001381197-23-000061
- form_type: 8-K
- ticker: IBKR
- cik: 0001381197
- company_name: Interactive Brokers Group, Inc.
- filed_at: 2023-07-27T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: medium
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1381197/000138119723000061/0001381197-23-000061-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1381197/000138119723000061/ibkr-20230727x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001381197-23-000061
- JSON: https://secwatch.observer/filing/0001381197-23-000061.json
- Plain text: https://secwatch.observer/filing/0001381197-23-000061.txt

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