Interactive Brokers Group, Inc. IBKR
CIK 0001381197 · CUSIP 45841N107
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | VANGUARD GROUP INC CIK 102909 · Amended · View history | $828.10M 9,566,830 shares | 0.02% | SEC filing ↗ Dec 18, 2023 | ▾ | |
| 02 | BlackRock Inc. CIK 1364742 · View history | $779.66M 9,007,138 shares | 0.02% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 03 | Orbis Allan Gray Ltd CIK 1663865 · View history | $705.39M 8,149,137 shares | 5.07% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 04 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC CIK 1021223 · View history | $551.53M 6,371,599 shares | 1.57% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 05 | Cantillon Capital Management LLC CIK 1279936 · View history | $330.63M 3,819,629 shares | 2.45% | SEC filing ↗ Nov 6, 2023 | ▾ | |
| 06 | Greenwich Wealth Management LLC CIK 1439805 · View history | $269.88M 3,117,859 shares | 28.52% | SEC filing ↗ Nov 7, 2023 | ▾ | |
| 07 | STATE STREET CORP CIK 93751 · View history | $256.63M 2,964,780 shares | 0.01% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 08 | Bares Capital Management, Inc. CIK 1340807 · View history | $222.15M 2,566,395 shares | 9.49% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 09 | MARSHALL WACE, LLP CIK 1318757 · View history | $220.01M 2,541,679 shares | 0.47% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 10 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $170.56M 1,970,416 shares | 0.02% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 11 | JARISLOWSKY, FRASER Ltd CIK 1123778 · Amended · View history | $158.24M 1,828,073 shares | 1.03% | SEC filing ↗ Sep 30, 2024 | ▾ | |
| 12 | FMR LLC CIK 315066 · View history | $153.52M 1,773,533 shares | 0.01% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 13 | Select Equity Group, L.P. CIK 1592643 · View history | $151.06M 1,745,169 shares | 0.62% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 14 | FIL Ltd CIK 318989 · View history | $141.45M 1,634,101 shares | 0.17% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 15 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $138.39M 1,598,545 shares | 0.02% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 16 | NORGES BANK CIK 1374170 · Amended · View history | $100.00M 1,155,293 shares | 0.02% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 17 | Bank of New York Mellon Corp CIK 1390777 · View history | $85.31M 985,585 shares | 0.02% | SEC filing ↗ Oct 24, 2023 | ▾ | |
| 18 | WELLS FARGO & COMPANY/MN CIK 72971 · View history | $82.71M 955,524 shares | 0.03% | SEC filing ↗ Nov 13, 2023 | ▾ | |
| 19 | ABRAMS BISON INVESTMENTS, LLC CIK 1317588 · View history | $80.47M 929,600 shares | 8.84% | SEC filing ↗ Nov 14, 2023 | ▾ | |
| 20 | Coronation Fund Managers Ltd. CIK 1594320 · View history | $79.88M 922,825 shares | 2.40% | SEC filing ↗ Oct 18, 2023 | ▾ |
Showing 20 / 437 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 437 reporting institutions.
This page includes 20 of 437 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 437 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"45841N107","quarter":"2023Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.