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Great Diamond Partners, LLC

Position in BLK — BlackRock, Inc.

CIK 1801112 Portland, ME

Position in BLK

as of Jun 30, 2026 · filed Jul 17, 2026
Position Value
$2,760,638
+$25,535 QoQ
Shares Held
2,871
+0.9% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
1.06%
of 13F equity value
Holder Rank
#820
of 2,272 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

Great Diamond Partners, LLC holds $4,686,053 across 2 Asset Management names. BLK ranks #1 (58.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BLK
BlackRock, Inc.
This page
2,871 $2,760,638

All Filings in BLK

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,760,638 2,871
2026-03-31 $2,735,103 2,844
2025-12-31 $2,987,318 2,791
2025-09-30 $3,242,284 2,781
2025-06-30 $2,920,062 2,783
2025-03-31 $2,627,428 2,776
2024-12-31 $3,049,702 2,975