INTERACTIVE BROKERS GROUP, INC.

PublicCIK: 1381197
IBKRNASDAQ
Location

GREENWICH, CT

13F Filings

Institutional Holders

INTERACTIVE BROKERS GROUP, INC.IBKR— Latest position per institution from SEC 13F filings

15

Institutional holders

304.34M

Total shares held

20.09B

Estimated value

15.22M

Avg. position size

1

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

53.72M

Value

617.24K

Filed

Jun 30, 2026

2

VANGUARD GROUP INC

CIK 102909

Shares

52.25M

Value

3.36B

Filed

Dec 31, 2025

3

BLACKROCK, INC.

CIK 2012383

Shares

33.13M

Value

2.88B

Filed

Jun 30, 2026

4

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

28.35M

Value

2.47B

Filed

Jun 30, 2026

5

STATE STREET CORP

CIK 93751

Shares

19.44M

Value

1.69B

Filed

Jun 30, 2026

6

FMR LLC

CIK 315066

Shares

11.83M

Value

1.03B

Filed

Jun 30, 2026

7

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

10.64M

Value

925.47M

Filed

Jun 30, 2026

8

GREENWICH WEALTH MANAGEMENT LLC

CIK 1439805

Shares

9.92M

Value

863.59K

Filed

Jun 30, 2026

9

INVESCO LTD.

CIK 914208

Shares

9.71M

Value

845.07M

Filed

Jun 30, 2026

10

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

9.30M

Value

1.14B

Filed

Jun 30, 2024

11

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

8.72M

Value

759.36M

Filed

Jun 30, 2026

12

TWO SIGMA INVESTMENTS, LP

CIK 1179392

Shares

8.40M

Value

731.02M

Filed

Jun 30, 2026

13

WELLINGTON MANAGEMENT GROUP LLP

CIK 902219

Shares

7.38M

Value

642.54M

Filed

Jun 30, 2026

14

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC

CIK 1021223

Shares

6.37M

Value

554.06M

Filed

Jun 30, 2026

15

NORGES BANK

CIK 1374170

Shares

6.33M

Value

551.33M

Filed

Jun 30, 2026

16

ORBIS ALLAN GRAY LTD

CIK 1663865

Shares

6.07M

Value

528.27M

Filed

Jun 30, 2026

17

W1M ASSET MANAGEMENT LTD

CIK 1767559

Shares

5.98M

Value

520.15M

Filed

Jun 30, 2026

18

BANK OF AMERICA CORP /DE/

CIK 70858

Shares

5.95M

Value

518.24M

Filed

Jun 30, 2026

19

AMERICAN CENTURY COMPANIES INC

CIK 748054

Shares

5.58M

Value

485.95M

Filed

Jun 30, 2026

20

NINETY ONE UK LTD

CIK 1418329

Shares

5.26M

Value

457.72M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.