ur-50742

Alnylam Pharmaceuticals Inc

Latest period2026 - Q1Total superinvestors47

Top 10 Superinvestors by Shares Owned

This chart shows the top 10 superinvestors based on the number of shares they owned in 2025-Q4 and 2026-Q1. According to the most recent SEC 13F filing, 47 superinvestors own shares of Alnylam Pharmaceuticals Inc (ur-50742), although recent data may remain incomplete due to pending filings.

Quarter-over-Quarter Change (%)

This chart highlights the quarter-over-quarter change (%) in the number of superinvestors holding Alnylam Pharmaceuticals Inc (ur-50742), the total shares they held, and the total reported dollar value. It gives a clear view of whether there is ongoing momentum. The dotted lines at the top and bottom adjust longer bars to keep smaller data points visible for better comparison.

Superinvestors' Activity (%) Over the Last 4 Quarters

This chart shows superinvestors' activity with Alnylam Pharmaceuticals Inc (ur-50742) over the last four quarters, highlighting the percentage of investors who added, increased, decreased, held, or exited their positions, revealing shifts in sentiment over time.

Superinvestors' Past Actions

This chart displays superinvestors' past actions with Alnylam Pharmaceuticals Inc (ur-50742) over the last 10 years (40 quarters), helping to visualize the collective momentum and investment trends over time.

Superinvestors ownership

SuperinvestorPortfolio %Reported Value
Brent E Binge@Steelhead Partners Llc
Recent Activity
New Position
5.55%
$77.115M
60M shares@ 1.29 avg price
Paul Drumm@Bnp Paribas Financial Markets
Recent Activity
Increased 86.62%
0.03%
$41.416M
32.318M shares@ 1.29 avg price
Cherry Jiang@Alberta Investment Management Corp
Recent Activity
0.2%
$32.131M
25M shares@ 1.29 avg price
Suzanne Horowitz@Deepcurrents Investment Group Llc
Recent Activity
New Position
0.99%
$30.885M
24M shares@ 1.29 avg price
ELIZABETH SCHAEFER@State Street Corp
Recent Activity
Increased 3.88%
0.01%
$29.276M
22.77M shares@ 1.29 avg price
Mitchel Bialek@Css Llc Il
Recent Activity
New Position
1.15%
$23.858M
18.563M shares@ 1.29 avg price
Stephanie J. Brown@Fmr Llc
Recent Activity
Decreased -5.38%
0.01%
$23.636M
18.444M shares@ 1.29 avg price
Spencer Fleming@Blackrock, Inc.
Recent Activity
Increased 27.21%
0.01%
$21.273M
16.6M shares@ 1.29 avg price
Chris Fitzgerald@Mackay Shields Llc
Recent Activity
Increased 0.05%
0.7%
$19.053M
14.844M shares@ 1.29 avg price
Graham Miller@Manufacturers Life Insurance Company, The
Recent Activity
Decreased -26.59%
0.02%
$17.761M
13.8M shares@ 1.29 avg price

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