Interactive Brokers Group, Inc. (IBKR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

446,528,983Shares Outstanding

384,004,661Shares held by institutions

$32,682,636,698Value of institutional holdings

86.00%Institutional ownership %

-2.39%Shares Changed QoQ

949No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Interactive Brokers Group, Inc. (NASDAQ:IBKR) has 947 institutional investors with active 13F positions as of December 2025.

These investors held 85.0% of outstanding shares in December 2025, down from 91.6% in September 2025.
They decreased total shares held in IBKR by -2.97% quarter over quarter, and investors in Interactive Brokers increased 34.9% from a year ago.
Of these 947 holders, 478 added to their stakes in Interactive Brokers, 341 trimmed positions, and 128 made no changes.
Altogether, these fund groups held 379.71Mn shares in IBKR by December 2025, down by 11.63Mn shares quarter on quarter, and up 278.39Mn shares year over year.
Robeco Institutional Asset Management B.V. is the top holder of Interactive Brokers as of December 31, 2025, with 1.33Mn shares representing 0.3% of outstanding stock.
The largest buyers of Interactive Brokers for the quarter ending December 2025 were Assenagon Asset Management S.A. (1.15Mn), CONGRESS ASSET MANAGEMENT CO (867.93K), Marathon Asset Management Ltd (543.04K), Raiffeisen Bank International AG (370.59K), Compagnie Lombard Odier SCmA (215.61K).
Leading sellers of Interactive Brokers shares for the quarter ending December 2025 were Hosking Partners LLP (69.06K), Robeco Institutional Asset Management B.V. (59.11K), Sumitomo Mitsui DS Asset Management Company, Ltd (41.87K), Inspire Investing, LLC (16.53K), Fragasso Financial Advisors Inc (14.43K).
Business Quant data shows the 10 biggest positions in Interactive Brokers as of December 2025 are held by Robeco Institutional Asset Management B.V. (1.33Mn), Hosking Partners LLP (1.2Mn), Assenagon Asset Management S.A. (1.19Mn), CONGRESS ASSET MANAGEMENT CO (971.53K), Compagnie Lombard Odier SCmA (697.17K), Marathon Asset Management Ltd (543.04K), Systrade AG (500.0K), Raiffeisen Bank International AG (386.5K), Sumitomo Mitsui DS Asset Management Company, Ltd (281.31K), Pictet Asset Management Holding SA (253.96K).

953 Institutional Holders

384,004,661 Total Shares Held

Rows:

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Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	52,254,357	-604,728	-1.14%	$3,360,477,700.00
BlackRock, Inc.	31 Dec, 2025	31,679,842	710,875	2.30%	$2,037,330,638.00
State Street Corp	31 Dec, 2025	18,836,521	187,763	1.01%	$1,211,376,666.00
CANTILLON CAPITAL MANAGEMENT LLC	31 Dec, 2025	12,759,904	-12,568,148	-49.62%	$820,589,426.00
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	31 Dec, 2025	11,206,753	-967,773	-7.95%	$720,706,333.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	10,203,434	-140,926	-1.36%	$654,259,500.00
Orbis Allan Gray Ltd	31 Dec, 2025	9,273,735	-270,137	-2.83%	$596,393,898.00
Greenwich Wealth Management LLC	31 Dec, 2025	9,185,108	-1,182,168	-11.40%	$590,694.00
Invesco Ltd.	31 Dec, 2025	8,288,379	2,534,772	44.06%	$533,025,652.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	8,284,218	-2,616,953	-24.01%	$532,758,060.00
Jpmorgan Chase & Co	31 Dec, 2025	7,440,816	-10,660,096	-58.89%	$478,518,925.00
NORGES BANK	31 Dec, 2025	7,046,279	7,046,279	0.00%	$453,146,202.00
Egerton Capital (UK) LLP	31 Dec, 2025	6,939,581	685,447	10.96%	$446,284,454.00
Bank Of America Corp /De/	31 Dec, 2025	6,668,672	-8,587,662	-56.29%	$428,862,321.00
London & Capital Asset Management Ltd	31 Dec, 2025	5,861,042	5,280,117	908.92%	$377,011,529.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	5,762,860	-190,787	-3.20%	$370,609,553.00
Goldman Sachs Group Inc	31 Dec, 2025	5,037,716	3,405,230	208.59%	$323,975,500.00
1832 Asset Management L.P.	31 Dec, 2025	5,027,916	3,632,492	260.31%	$323,345,278.00
JACOBS LEVY EQUITY MANAGEMENT, INC	31 Dec, 2025	4,813,320	75,779	1.60%	$309,544,609.00
FMR LLC	31 Dec, 2025	4,809,195	-1,419,289	-22.79%	$309,279,315.00

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