Skip to content
Guess what? Valuesider just got better: smarter and more intuitive.
Interactive Brokers Group Inc

IBKR

Interactive Brokers Group Inc

Interactive Brokers Group Inc historical holders

total: 11

Egerton Capital Interactive Brokers Group Inc transactions over time

Total transactions:
10
New positions:
1
Added:
4
Reduced:
5
Held since:
2024 Q1
Held for:
10 quarters
Latest activity:
2026 Q2
John Armitage has been an institutional investor in Interactive Brokers Group Inc (IBKR) since 2024 Q1. According to 2026 Q2 report, John Armitage holds 4,129,416 shares with a market value of roughly $359.42M representing 3.47% of their equity portfolio. The fund/company first acquired IBKR in 2024 Q1, initially purchasing about 11.29M shares. Since the initial investment, Egerton Capital has made 9 more transactions in this position.

Does John Armitage still hold IBKR?

Yes, John Armitage continues to hold Interactive Brokers Group Inc (IBKR). According to their 2026 Q2 report, they maintain a position of 4,129,416 shares valued at approximately $359.42M, representing 3.47% of their equity portfolio.

When did John Armitage first invest in IBKR?

John Armitage first invested in Interactive Brokers Group Inc (IBKR) in 2024 Q1 at the reported quarter-end price of $27.93 per share, acquiring 11,294,788 shares in their initial purchase.

What is John Armitage's average cost basis for IBKR?

Based on historical transaction data, John Armitage's estimated cost basis for Interactive Brokers Group Inc (IBKR) is approximately $31.61 per share. This represents their average reported price* across all buy transactions.

Estimated cost basis*

Weighted AVG buy price:
$31.61
Weighted AVG sell price:
$58.18

IBKR transactions history by Egerton Capital

10 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2026 Q2
3.47%
4,129,416
$87.04
$359,424,369
-34.19% (-2,145,763)
-2.07%
2026 Q1
4.67%
6,275,179
$67.07
$420,876,256
-9.57% (-664,402)
-0.48%
2025 Q4
4.85%
6,939,581
$64.31
$446,284,454
+10.96% (+685,447)
+0.48%
2025 Q3
4.54%
6,254,134
$68.81
$430,346,961
-22.37% (-1,802,710)
-1.27%
2025 Q2
4.58%
8,056,844
$55.41
$446,429,726
+9.83% (+720,968)
+0.41%
2025 Q1
3.50%
7,335,876
$41.40
$303,686,927
-0.77% (-56,816)
-0.03%
2024 Q4
3.78%
7,392,692
$44.17
$326,516,724
-45.36% (-6,137,360)
-2.74%
2024 Q3
4.76%
13,530,052
$34.84
$471,387,012
+7.95% (+996,572)
+0.35%
2024 Q2
3.88%
12,533,480
$30.65
$384,151,162
+10.97% (+1,238,692)
+0.38%
2024 Q1
3.05%
11,294,788
$27.93
$315,435,192
new
+3.05%
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.