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Calamos Advisors LLC

Position in BLK — BlackRock, Inc.

CIK 1316507 NAPERVILLE, IL

Position in BLK

as of Jun 30, 2026 · filed Jul 31, 2026
Position Value
$28,674,680
-$519,950 QoQ
Shares Held
29,821
-1.8% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.16%
of 13F equity value
Holder Rank
#273
of 2,275 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BLK Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Jun 30, 2026

Calamos Advisors LLC holds $153,898,195 across 62 Asset Management names. BLK ranks #2 (18.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 BLK
BlackRock, Inc.
This page
29,821 $28,674,680

All Filings in BLK

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $28,674,680 29,821
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