ALNYLAM PHARMACEUTICALS, INC. - Common Stock (ALNY)

CUSIP: 02043Q107

Q4 2022 13F Holders as of 31 Dec 2022

Holder snapshot 7 signals
Share change
-13,407,340
Put/Call ratio
53%
SEC-reported price per share
$237.65
Number of holders
477
Value change
-$3,086,850,614
Number of buys
241
Open additional details 1 more signal available
Number of sells
224
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
133,131,695

Security key

02043Q107

Report period

Q4 2022

Institutions

477

Top holders

10

Ownership snapshot

Top reported holders of ALNY - ALNYLAM PHARMACEUTICALS, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Nuveen Asset Management, LLC
Disclosed value leader
Nuveen Asset Management, LLC
Comparable rows
15/15
Latest evidence
30 Sep 2022
13F Lead comparable stake: 12% Showing 1-6 of 15 holder rows.

Quick read

Nuveen Asset Management, LLC leads the comparable SEC ownership view at 12%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Nuveen Asset Management, LLC's linked filing trail.
Comparable ownership Top 5
Nuveen Asset Management, LLC 12%
Capital World Investors 10%
FMR LLC 9.7%
VANGUARD GROUP INC 8.3%
BAILLIE GIFFORD & CO 7.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Nuveen Asset Management, LLC
13F
Company
13F
12%
$3,321,309,000
16,593,268 shares
30 Sep 2022
Capital World Investors
13F
Company
13F
10%
$2,792,252,000
13,949,647 shares
30 Sep 2022
FMR LLC
13F
Company
13F
9.7%
$2,592,024,000
12,949,757 shares
30 Sep 2022
VANGUARD GROUP INC
13F
Company
13F
8.3%
$2,212,429,000
11,053,308 shares
30 Sep 2022
BAILLIE GIFFORD & CO
13F
Company
13F
7.1%
$1,904,474,000
9,514,758 shares
30 Sep 2022
BlackRock Finance, Inc.
13F
Company
13F
5.8%
$1,534,961,000
7,668,678 shares
30 Sep 2022
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2022

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
477
Shares
119,654,959
Rows available
477
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2022 vs Q3 2022 Across Filers

Q3 2022 holders
479
Q4 2022 holders
477
Holder diff
-2
Investor Q3 2022 Shares Q4 2022 Shares Share Diff Share Chg % Q3 2022 value Q4 2022 value Value change Value Chg %
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