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ALNY
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Position history for GILDER GAGNON HOWE & CO LLC's holdings in ALNYLAM PHARMACEUTICALS INC

GILDER GAGNON HOWE & CO LLC holds 280,092 shares of ALNY (ALNYLAM PHARMACEUTICALS INC), worth $92.7M as of 2026-Q1. The position was decreased (-12.3% shares). ALNY represents 1.1% of GILDER GAGNON HOWE & CO LLC's portfolio.

Current Value

$92.7M

Current Shares

280,092

Total Value Change

-$4.2M

Total Shares Change

-118,524

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q1
Latest
Decreased
280,092
-12.3%
$92.7M1.1%$318.65
0
2025-Q4
Decreased
319,305
-3.0%
$127M1.3%$397.25
0
2025-Q3
Decreased
329,321
-2.3%
$150.2M1.5%$447.49
0
2025-Q2
Decreased
337,088
-2.5%
$109.9M1.2%$322.83
0
2025-Q1
Decreased
345,575
-5.4%
$93.3M1.2%$268.46
0
2024-Q4
Decreased
365,463
-4.8%
$86M0.9%$236.01
0
2024-Q3
Decreased
383,993
-3.7%
$105.6M1.3%$274.91
0
2024-Q2
Decreased
398,616
-1.6%
$96.9M1.2%$243.00
0

Other major holders of ALNY: FMR LLC, Capital World Investors, VANGUARD GROUP INC

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