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River Street Advisors LLC

Position in BLK — BlackRock, Inc.

CIK 1964897 AURORA, IL

Position in BLK

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$3,117,376
+$74,527 QoQ
Shares Held
3,242
+2.5% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
1.46%
of 13F equity value
Holder Rank
#776
of 2,275 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in BLK Over Time

Shares Held

Position Value (USD)

Position in Asset Management

Financial Services · as of Jun 30, 2026

River Street Advisors LLC holds $14,723,435 across 26 Asset Management names. BLK ranks #1 (21.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 BLK
BlackRock, Inc.
This page
3,242 $3,117,376

All Filings in BLK

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,117,376 3,242
2026-03-31 $3,042,849 3,164
2025-12-31 $2,911,324 2,720
2025-09-30 $3,067,403 2,631
2025-06-30 $2,681,882 2,556
2025-03-31 $2,307,518 2,438
2024-12-31 $2,333,150 2,276