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MARTINGALE ASSET MANAGEMENT L P

Position in IBKR — Interactive Brokers Group, Inc.

CIK 936944 BOSTON, MA

Position in IBKR

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,242,234
-$1,018,360 QoQ
Shares Held
14,272
-57.7% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#535
of 1,105 holders
Holding Since
Sep 2020
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IBKR Over Time

Shares Held

Position Value (USD)

Position in Capital Markets

Financial Services · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $33,273,156 across 8 Capital Markets names. IBKR ranks #7 (3.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 IBKR
Interactive Brokers Group, Inc.
This page
14,272 $1,242,234

All Filings in IBKR

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18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,242,234 14,272
2026-03-31 $2,260,594 33,705
2025-12-31 $4,144,843 64,451
2025-09-30 $8,822,680 128,218
2025-06-30 $8,789,577 158,628
2025-03-31 $11,994,014 72,432
2024-12-31 $14,284,476 80,854
2024-09-30 $12,634,377 90,660
2024-06-30 $5,647,201 46,062
2024-03-31 $4,646,800 41,597
2023-12-31 $3,677,775 44,364
2023-09-30 $2,550,317 29,463
2023-06-30 $1,641,712 19,763
2023-03-31 $2,105,940 25,508
2021-06-30 $535,107 8,141
2021-03-31 $3,836,426 52,525
2020-12-31 $4,433,026 72,768
2020-09-30 $4,116,314 85,171