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ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in IBKR — Interactive Brokers Group, Inc.

CIK 1165408 Boston, MA

Position in IBKR

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$34,554,880
+$7,793,950 QoQ
Shares Held
397,000
-0.5% QoQ
Ownership
0.088%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#122
of 1,105 holders
Holding Since
Sep 2025
4 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

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $902,692,108 across 14 Capital Markets names. IBKR ranks #9 (3.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IBKR

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $34,554,880 397,000
2026-03-31 $26,760,930 399,000
2025-12-31 $25,859,051 402,100
2025-09-30 $27,888,693 405,300