Alnylam Pharmaceuticals Inc

ALNY

Data as of Q4 2025

Track which institutional investors hold this security, how their positions are changing, and whether consensus is bullish or bearish. Listed on US.

SymbolALNY

CUSIP02043Q107

Type

equity

ClassCommon Stock - Domestic

SEC EDGAR Source

Institutional Holders

278

Total Institutional Value

$48B

Institutional Consensus

Price History

Institutional Holders(Showing 5 of 278)

Filer	Action	Shares	Value	Portfolio Weight	Est. P&L	Conviction
Capital World Investors	Decreased	16.3M(-0.8%)	$6.5B	0.9%	+100.66%	0
FMR LLC	Decreased	15.9M(-5.2%)	$6.3B	0.3%	+56.25%	0
VANGUARD GROUP INC	Decreased	13.6M(-0.1%)	$5.4B	0.1%	+42.52%	0
BlackRock, Inc.	Increased	10.4M(+5.0%)	$4.1B	0.1%	+60.70%	34
Capital Research Global Investors	Decreased	6.8M(-6.1%)	$2.7B	0.5%	+70.17%	0

Upgrade to Pro for 2 years of historical data, full analytics access, and CSV exports

Starting at $16/mo billed annually

Join investors tracking institutional hedge fund positions

Cancel anytime — no lock-in