INTERACTIVE BROKERS GRO-CL A (IBKR) Institutional Shareholders
INTERACTIVE BROKERS GRO-CL A (IBKR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $23.92B in IBKR holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of IBKR tracked by InsiderSet, reporting ownership valued at approximately $2.10B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $2.78B, representing an estimated gain of +32.15% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 43% of the total disclosed IBKR value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in INTERACTIVE BROKERS GRO-CL A (IBKR).
This page ranks the largest institutional IBKR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,028
Total Reported Value
$23.92B
Largest Holder
Blackrock, Inc.
Largest Position
$2.10B
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
55
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.04% | 31,375,037 | $2,104,323,725 | $2,780,769,529 | +$676,445,804 | +32.15% | |
| Vanguard Capital Management Llc | 0.05% | 28,180,361 | $1,890,056,812 | $2,497,625,395 | +$607,568,583 | +32.15% | |
| State Street Corp | 0.04% | 19,092,105 | $1,280,507,482 | $1,692,133,266 | +$411,625,784 | +32.15% | |
| Vanguard Portfolio Management Llc | 0.05% | 14,984,545 | $1,005,013,433 | $1,328,080,223 | +$323,066,790 | +32.15% | |
| Fmr Llc | 0.04% | 12,501,284 | $838,461,148 | $1,107,988,801 | +$269,527,653 | +32.15% | |
| Geode Capital Management, Llc | 0.04% | 10,443,607 | $699,500,890 | $925,616,888 | +$226,115,998 | +32.33% | |
| Kayne Anderson Rudnick Investment Management Llc | 1.97% | 10,016,215 | $671,787,557 | $887,737,135 | +$215,949,578 | +32.15% | |
| Wellington Management Group Llp | 0.12% | 9,774,792 | $655,595,299 | $866,339,815 | +$210,744,516 | +32.15% | |
| Invesco Ltd. | 0.10% | 9,647,168 | $647,035,557 | $855,028,500 | +$207,992,943 | +32.15% | |
| Two Sigma Investments, Lp | 0.46% | 8,312,971 | $557,550,965 | $736,778,620 | +$179,227,655 | +32.15% | |
| Ninety One Uk Ltd | 1.02% | 5,258,689 | $457,716,269 | $466,077,606 | +$8,361,337 | +1.83% | |
| Bank Of America Corp | 0.03% | 6,230,136 | $417,855,207 | $552,176,954 | +$134,321,747 | +32.15% | |
| Orbis Allan Gray Ltd | 1.73% | 6,118,045 | $410,337,278 | $542,242,328 | +$131,905,050 | +32.15% | |
| London & Capital Asset Management Ltd | 4.32% | 5,915,803 | $396,654,591 | $524,317,620 | +$127,663,029 | +32.18% | |
| American Century Companies Inc | 0.20% | 5,744,408 | $385,277,445 | $509,126,881 | +$123,849,436 | +32.15% | |
| Egerton Capital UK | John Armitage | 3.47% | 4,129,416 | $359,424,369 | $365,990,140 | +$6,565,771 | +1.83% |
| Morgan Stanley | 0.02% | 4,765,572 | $319,627,063 | $422,372,646 | +$102,745,583 | +32.15% | |
| Td Asset Management Inc | 0.28% | 3,651,927 | $317,863,726 | $323,670,290 | +$5,806,564 | +1.83% | |
| 1832 Asset Management L.P. | 0.40% | 4,454,154 | $298,740,109 | $394,771,669 | +$96,031,560 | +32.15% | |
| Bamco Inc | 0.82% | 4,047,376 | $271,457,508 | $358,718,935 | +$87,261,427 | +32.15% | |
| Jacobs Levy Equity Management, Inc | 1.11% | 3,931,016 | $263,653,243 | $348,405,948 | +$84,752,705 | +32.15% | |
| Neuberger Berman Group Llc | 0.19% | 3,733,048 | $249,399,087 | $330,860,044 | +$81,460,957 | +32.66% | |
| Charles Schwab Investment Management Inc | 0.04% | 3,592,551 | $240,952,396 | $318,407,795 | +$77,455,399 | +32.15% | |
| Northern Trust Corp | 0.03% | 3,561,826 | $238,891,670 | $315,684,638 | +$76,792,968 | +32.15% | |
| Goldman Sachs Group Inc | 0.03% | 3,221,545 | $216,069,021 | $285,525,533 | +$69,456,512 | +32.15% | |
| Capital World Investors | 0.03% | 3,030,920 | $203,283,804 | $268,630,440 | +$65,346,636 | +32.15% | |
| Wells Fargo & Company/Mn | 0.04% | 2,889,181 | $193,777,352 | $256,068,112 | +$62,290,760 | +32.15% | |
| Legal & General Group Plc | 0.04% | 2,506,521 | $168,111,764 | $222,152,956 | +$54,041,192 | +32.15% | |
| Vanguard Fiduciary Trust Co | 0.04% | 2,489,553 | $166,974,320 | $220,649,082 | +$53,674,762 | +32.15% | |
| Amundi | 0.04% | 2,433,236 | $163,197,139 | $215,657,707 | +$52,460,568 | +32.15% | |
| First Trust Advisors Lp | 0.11% | 2,299,168 | $154,205,166 | $203,775,260 | +$49,570,094 | +32.15% | |
| Bank Of New York Mellon Corp | 0.03% | 2,282,311 | $153,074,599 | $202,281,224 | +$49,206,625 | +32.15% | |
| Barclays Plc | 0.05% | 2,266,397 | $152,007,246 | $200,870,766 | +$48,863,520 | +32.15% | |
| Ubs Group Ag | 0.03% | 2,263,352 | $151,803,019 | $200,600,888 | +$48,797,869 | +32.15% | |
| Progeny 3, Inc. | 7.88% | 2,195,640 | $147,261,575 | $194,599,573 | +$47,337,998 | +32.15% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.03% | 2,125,652 | $142,567,479 | $188,396,537 | +$45,829,058 | +32.15% | |
| Bares Capital Management | Brian Bares | 13.08% | 2,060,589 | $141,789,129 | $182,630,003 | +$40,840,874 | +28.80% |
| Congress Asset Management Co | 0.82% | 1,527,739 | $132,974,371 | $135,403,508 | +$2,429,137 | +1.83% | |
| Robeco Institutional Asset Management B.V. | 0.15% | 1,418,704 | $123,483,995 | $125,739,736 | +$2,255,741 | +1.83% | |
| Raymond James Financial Inc | 0.04% | 1,775,579 | $119,088,101 | $157,369,567 | +$38,281,466 | +32.15% | |
| Jane Street Group, Llc | 0.13% | 1,767,778 | $118,564,869 | $156,678,164 | +$38,113,295 | +32.15% | |
| Royal Bank Of Canada | 0.02% | 1,682,514 | $112,846,000 | $149,121,216 | +$36,275,216 | +32.15% | |
| Fil Ltd | 0.08% | 1,512,390 | $101,435,997 | $134,043,126 | +$32,607,129 | +32.15% | |
| Ensign Peak Advisors, Inc | 0.18% | 1,477,244 | $99,078,755 | $130,928,136 | +$31,849,381 | +32.15% | |
| Timessquare Capital Management, Llc | 1.65% | 1,450,839 | $97,307,772 | $128,587,861 | +$31,280,089 | +32.15% | |
| Viking Global Investors | Ole Andreas Halvorsen | 0.26% | 1,394,329 | $93,517,646 | $123,579,379 | +$30,061,733 | +32.15% |
| Hosking Partners Llp | 3.07% | 1,061,140 | $92,361,626 | $94,048,838 | +$1,687,212 | +1.83% | |
| Ancient Art (Teton Capital) | Quincy Lee | 18.80% | 1,285,193 | $86,197,895 | $113,906,656 | +$27,708,761 | +32.15% |
| Nuveen, Llc | 0.02% | 1,265,772 | $84,895,328 | $112,185,372 | +$27,290,044 | +32.15% | |
| Envestnet Asset Management Inc | 0.02% | 937,891 | $81,633,272 | $83,125,279 | +$1,492,007 | +1.83% |
Frequently asked questions about IBKR
Who owns the most IBKR stock?
The largest holders of IBKR are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for INTERACTIVE BROKERS GRO-CL A (IBKR).
Is IBKR widely held by superinvestors?
Many widely followed stocks like IBKR appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly IBKR is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.