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GRANDFIELD & DODD, LLC

Position in ALNY — Alnylam Pharmaceuticals, Inc.

CIK 1308016 NEW YORK, NY

Position in ALNY

as of Jun 30, 2026 · filed Aug 7, 2026
Position Value
$964,500
-$54,910 QoQ
Shares Held
3,204
+4.0% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#404
of 786 holders
Holding Since
Sep 2024
8 quarters on record
Voting authority Sole 97% Shared 0% None 3%

Common Shares in ALNY Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

GRANDFIELD & DODD, LLC holds $46,143,038 across 12 Biotechnology names. ALNY ranks #8 (2.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 ALNY
Alnylam Pharmaceuticals, Inc.
This page
3,204 $964,500

All Filings in ALNY

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8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $964,500 3,204
2026-03-31 $1,019,410 3,081
2025-12-31 $1,244,246 3,129
2025-09-30 $1,422,720 3,120
2025-06-30 $995,226 3,052
2025-03-31 $818,700 3,032
2024-12-31 $558,390 2,373
2024-09-30 $336,636 1,224