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BlackRock, Inc.

Position in MKTX — Marketaxess Holdings Inc

CIK 2012383 New York, NY

Position in MKTX

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$672,318,901
-$6,729,144 QoQ
Shares Held
4,075,154
+8.8% QoQ
Ownership
11.5%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority Sole 97.78239055505632.ToString("F0")% Shared 0.ToString("F0")% None 2.217609444943676.ToString("F0")%

Common Shares in MKTX Over Time

Shares Held

Position Value (USD)

Position in Capital Markets

Financial Services · as of Mar 31, 2026

BlackRock, Inc. holds $70,903,916,115 across 68 Capital Markets names. MKTX ranks #15 (0.9% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MKTX

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $672,318,901 4,075,154
2025-12-31 $679,048,045 3,746,472
2025-09-30 $322,433,761 1,850,409
2025-06-30 $591,825,529 2,649,886
2025-03-31 $563,677,416 2,605,396
2024-12-31 $715,164,554 3,163,885
2024-09-30 $743,979,430 2,903,901