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Calamos Advisors LLC

Position in BLK — BlackRock, Inc.

CIK 1316507 NAPERVILLE, IL

Position in BLK

as of Mar 31, 2026 · filed May 4, 2026
Position Value
$29,194,630
-$2,908,077 QoQ
Shares Held
30,357
+1.2% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2024
6 quarters on record
Voting authority Sole 99.63435122047633.ToString("F0")% Shared 0.ToString("F0")% None 0.3656487795236683.ToString("F0")%

Common Shares in BLK Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Mar 31, 2026

Calamos Advisors LLC holds $123,599,924 across 62 Asset Management names. BLK ranks #1 (23.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BLK
BlackRock, Inc.
This page
30,357 $29,194,630

All Filings in BLK

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6 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $29,194,630 30,357
2025-12-31 $32,102,707 29,993
2025-09-30 $35,784,047 30,693
2025-06-30 $32,137,478 30,629
2025-03-31 $28,975,538 30,614
2024-12-31 $31,092,611 30,331