Skip to main content

BLAIR WILLIAM & CO/IL

Position in ALNY — Alnylam Pharmaceuticals, Inc.

CIK 902367 CHICAGO, IL

Position in ALNY

as of Mar 31, 2026 · filed May 8, 2026
Position Value
$3,120,104
-$766,527 QoQ
Shares Held
9,430
-3.5% QoQ
Ownership
0.007%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority Sole 98.95015906680807.ToString("F0")% Shared 0.ToString("F0")% None 1.0498409331919405.ToString("F0")%

Common Shares in ALNY Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $126,358,113 across 56 Biotechnology names. ALNY ranks #8 (2.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 ALNY
Alnylam Pharmaceuticals, Inc.
This page
9,430 $3,120,104

All Filings in ALNY

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $3,120,104 9,430
2025-12-31 $3,886,631 9,774
2025-09-30 $4,671,264 10,244
2025-06-30 $3,453,945 10,592
2025-03-31 $2,991,281 11,078
2024-12-31 $2,814,778 11,962
2024-09-30 $3,667,250 13,334