Companies / Interactive Brokers Group Inc

Interactive Brokers Group Inc

Nasdaq: IBKRCIK 1381197FinancialsGREENWICH, CT

Financials · FY2025

Revenue$2.44B
Net income$4.36B
Total debt$628.00M
Cash$7.71B
Diluted EPS$2.22
Shares outstanding453.1M

Ownership

453.1M shares outstanding · as of Aug 5, 2026
1.6%Insiders
Ownership
Insiders1.57%7,108,474
10%+ / strategic7.18%32,540,281
Institutions85.73%388,417,566
Public float5.52%25,011,450

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Galik MilanCEOChief Executive Officer · Director
0.71%3,215,389
Brody Paul JonathanChief Financial Officer · Director
0.63%2,856,806
Nemser Earl HVice Chairman · Director
0.09%429,344
Frank Thomas AJExecutive Vice President
0.06%251,518
Harris Lawrence EDirector
0.04%173,482
Mendonca DenisChief Accounting Officer
0.03%145,071
Bright JillDirector
<0.01%11,082
Peterffy WilliamDirector
<0.01%10,126
Yuen NicoleDirector
<0.01%10,126
Repetto Richard HDirector
<0.01%3,046

Institutional holders 989

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HolderValue% of shares
Vanguard Group Inc$3.36B11.53%
BlackRock, Inc.$2.88B7.31%
State Street Corporation$1.69B4.29%
Cantillon Capital Management LLC$754.26M2.48%
Geode Capital Management, LLC$699.50M2.31%
Kayne Anderson Rudnick Investment Management, LLC$671.79M2.21%
Orbis Allan Gray Ltd$596.39M2.05%
Two Sigma Investments, LP$557.55M1.83%
Invesco Ltd.$533.03M1.83%
Wellington Management Group LLP$532.76M1.83%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
May 8, 2026Galik Milan
CEO
OtherClass A common stock$21.53M-255K
-7.35%
3,215,389
0.71% of shares
low
Jan 22, 2026Nemser Earl H
Executive
SellClass A common stock$7.68M-100K
-25.00%
300,000
0.07% of shares
medium
May 8, 2026Brody Paul Jonathan
Executive
OtherClass A common stock$7.00M-83K
-2.82%
2,856,806
0.63% of shares
low
Jan 23, 2026Nemser Earl H
Executive
SellClass A common stock$6.60M-85K
-28.31%
215,065
0.05% of shares
medium
Jan 23, 2026Nemser Earl H
Executive
SellClass A common stock$4.69M-60K
-27.93%
155,000
0.03% of shares
medium
Jan 26, 2026Nemser Earl H
Executive
SellClass A common stock$4.62M-61K
-39.28%
94,118
0.02% of shares
medium
Jan 27, 2026Nemser Earl H
Executive
SellClass A common stock$2.98M-40K
-66.00%
20,469
<0.01% of shares
medium
May 8, 2026Frank Thomas AJ
Executive
OtherClass A common stock$2.68M-32K
-11.20%
251,518
0.06% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
Vanguard Capital ManagementPassive13G—32,540,281—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
IBKR——45841N107—