Follow-The-Filings

Security · featured owners

IBKR Interactive Brokers Group In

Financials COM CL A Equity as of 2026 Q2 among managers we track

  • 8 Owners
  • #158
  • Max 33.4%
  • Master 0.08%
  • $1.4B
  • 1 new 2 add 4 reduce

IBKR (Interactive Brokers Group In) is held in 8 featured 13F books as of 2026 Q2. Bryan Lawrence - Oakcliff Capital Partners is the largest tracked holder by portfolio weight (33.4%). Figures are as-filed 13F, not free float.

Who owns this now

Largest portfolio weights among featured holders · max 33.4% (Bryan Lawrence - Oakcliff Capital Partners) · not free-float ownership

  1. Bryan Lawrence 33.4%
  2. Robert Vinall reduce 12.8%
  3. William Von Mueffling reduce 6.8%
  4. John Armitage reduce 3.5%
  5. Andreas Halvorsen add 1.2%
  6. Ron Baron add 0.63%

holders

sorted by value · long equity only · current book 2026 Q2 · open a manager for their book

history
Andreas Halvorsen - Viking Global Investors 2026 Q2 1.2% Add +246.5% 4,830,748 $420M history
Ron Baron - Bamco Inc. (Baron Capital) 2026 Q2 0.63% Add +18.8% 4,807,214 $418M history
John Armitage - Egerton Capital (UK) 2026 Q2 3.5% Reduce −34.2% 4,129,416 $359M history
Bryan Lawrence - Oakcliff Capital Partners 2026 Q2 33.4% Hold 1,030,740 $90M history
Stephen Mandel - Lone Pine Capital 2026 Q2 0.31% New 0.31% 577,666 $50M history
Robert Vinall - Rv Capital AG 2026 Q2 12.8% Reduce −26.0% 561,086 $49M history
William Von Mueffling - Cantillon Capital Management 2026 Q2 6.8% Reduce −95.4% 517,833 $45M history
George Soros - Soros Fund Management 2026 Q2 0.16% Reduce −76.5% 151,470 $13M history

8 current · options excluded

SEC filings

Recent issuer filings from EDGAR · 13 shown · open Filing / Doc on SEC.gov

Filed Form Detail Links
10-Q Filing Doc
8-K 8.01,9.01 Filing Doc
424B5 Filing Doc
8-K 8.01,9.01 Filing Doc
424B5 Filing Doc
8-K 2.02,9.01 Filing Doc
10-Q Filing Doc
8-K 5.07,9.01 Filing Doc
8-K 2.02,9.01 Filing Doc
10-K/A Filing Doc
DEFA14A Filing Doc
10-K Filing Doc
8-K 2.02,9.01 Filing Doc

Insider forms

Form 3 / 4 / 5 from EDGAR · 15 rows shown

Filed Form Detail Links
4 Period Sep 1, 2026 Filing Doc
4 Period Aug 3, 2026 Filing Doc
4 Period Jul 31, 2026 Filing Doc
4 Period Jul 1, 2026 Filing Doc
4 Period Jun 1, 2026 Filing Doc
4 Period May 8, 2026 · 5 forms Filing Doc
4 Period May 1, 2026 Filing Doc
4 Period Apr 28, 2026 Filing Doc
4 Period Apr 1, 2026 Filing Doc
4 Period Feb 25, 2026 Filing Doc
4 Period Jan 26, 2026 Filing Doc
4 Period Jan 1, 2026 · 3 forms Filing Doc
4 Period Dec 31, 2025 Filing Doc
4 Period Jan 1, 2026 · 5 forms Filing Doc
4 Period Jan 22, 2026 Filing Doc

Updated 13 days ago Source: SEC EDGAR submissions All on EDGAR

financials

US-GAAP annual · as tagged in Form 10-K · fiscal years · values link to the SEC filing

Income statement

Metric FY2023 FY2024 FY2025
Revenue $1.56B $1.98B $2.44B

Balance sheet

Metric FY2023 FY2024 FY2025
Total assets $128.42B $150.14B $203.24B
Total equity $3.58B $4.28B $5.36B

Cash flow

Metric FY2023 FY2024 FY2025
Cash from operations $4.54B $8.72B $15.81B
Cash from investing -$52M -$44M -$171M
Cash from financing -$624M -$833M -$969M
Net change in cash $3.99B $7.64B $15.06B

Source: SEC companyfacts (US-GAAP 10-K) · * = computed (not a single XBRL tag) · fiscal year as labeled by the issuer · not adjusted or audited by Follow-The-Filings

ownership over time

filing count by report period · click a bar for that quarter’s holders