DOSSIER · 13F Holders · Q1 2026Financial Services · Security Brokers, Dealers & Flotation Companies
IBKR

INTERACTIVE BROKERS GROUP IN

1,056 institutions still hold INTERACTIVE BROKERS GROUP IN as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 45841N107·Security Brokers, Dealers & Flotation Companies·1,056 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$15.0B
visible holders
Holders
1,056
filers reporting
Concentration
14.08%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

1,056 institutions reported IBKR in Q1 2026. BlackRock, Inc. leads at 14.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$2.1B31.4M0.04%Q1 2026
02
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$1.9B28.2M0.05%Q1 2026
03
STATE STREET CORP
CIK 0000093751
$1.3B19.1M0.04%Q1 2026
04
Vanguard Portfolio Management
CIK 0002100121· Index
$1.0B15.0M0.05%Q1 2026
05
FMR LLC
CIK 0000315066
$838M12.5M0.04%Q1 2026
06
CANTILLON CAPITAL MANAGEMENT LLC
CIK 0001279936
$754M11.2M5.01%Q1 2026
07
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$700M10.4M0.04%Q1 2026
08
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
CIK 0001021223
$672M10.0M1.97%Q1 2026
09
Greenwich Wealth Management LLC
CIK 0001439805
$666M9.9M27.17%Q1 2026
10
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$656M9.8M0.12%Q1 2026
11
Invesco Ltd.
CIK 0000914208
$647M9.6M0.06%Q1 2026
12
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$563M8.4M0.45%Q1 2026
13
Ninety One UK Ltd
CIK 0001418329
$458M5.3M1.02%Q2 2026
14
JPMORGAN CHASE & CO
CIK 0000019617
$428M6.7M0.03%Q1 2026
15
BANK OF AMERICA CORP /DE/
CIK 0000070858
$418M6.2M0.03%Q1 2026
16
Orbis Allan Gray Ltd
CIK 0001663865
$410M6.1M1.73%Q1 2026
17
London & Capital Asset Management Ltd
CIK 0001767559
$397M5.9M4.32%Q1 2026
18
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$385M5.7M0.20%Q1 2026
19
Egerton Capital (UK) LLP
CIK 0001581811
$359M4.1M3.47%Q2 2026
20
MORGAN STANLEY
CIK 0000895421
$320M4.8M0.02%Q1 2026
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1036 more holders available. Log in →
Insiders at INTERACTIVE BROKERS GROUP IN
Conkling Lori ARepetto Richard HYuen NicoleBright JillHarris Lawrence EGalik MilanBrody Paul Jonathan