What does CUSIP 02043Q107 represent in this 13F holders report?

CUSIP 02043Q107 is the security identifier for ALNY - ALNYLAM PHARMACEUTICALS, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held ALNY - ALNYLAM PHARMACEUTICALS, INC. - Common Stock in Q4 2017?

275 institutional investors reported ALNY - ALNYLAM PHARMACEUTICALS, INC. - Common Stock for Q4 2017. Use the holders table for investor-level position and value details.

ALNYLAM PHARMACEUTICALS, INC. - Common Stock (ALNY)

CUSIP: 02043Q107

Q4 2017 13F Holders as of 31 Dec 2017

Type / Class: Equity / Common Stock
Shares outstanding: 133,131,695
Total 13F shares: 92,127,969
Share change: +4,762,784
Total reported value: $11,704,641,437
Put/Call ratio: 78%
Price per share: $127.05
Number of holders: 275
Value change: +$613,133,919
Number of buys: 167
Number of sells: 91

Security key

02043Q107

Report period

Q4 2017

Institutions

275

Top holders

ALNY full security history Newer quarter: Q1 2018 Previous quarter: Q3 2017 ALNYLAM PHARMACEUTICALS, INC. SEC filings ALNYLAM PHARMACEUTICALS, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 02043Q107

Newer quarter: Q1 2018 Previous quarter: Q3 2017

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

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

Grouped by holder across the latest SEC ownership disclosures. Start with the largest verified stakes, then open the linked filing trail.

13F

Lead reported holder

FMR LLC

10% from 13F

Large-stake signal

No latest 13D/G holder appears in this grouped view.

Evidence coverage

50 holder rows

Latest evidence as of 30 Sep 2017.

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.

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
FMR LLC	13F Company 13F	10%	$1,616,663,000 13,760,005 shares	—	30 Sep 2017
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	8.5%	$1,327,791,000 11,301,317 shares	—	30 Sep 2017
DODGE & COX	13F Company 13F	6.9%	$1,074,034,000 9,141,495 shares	—	30 Sep 2017
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	6.4%	$1,006,288,000 8,564,883 shares	—	30 Sep 2017
VANGUARD GROUP INC	13F Company 13F	4.9%	$762,851,000 6,492,898 shares	—	30 Sep 2017
BlackRock Finance, Inc.	13F Company 13F	4.6%	$718,061,000 6,111,697 shares	—	30 Sep 2017
BAILLIE GIFFORD & CO	13F Company 13F	2.6%	$400,099,000 3,405,392 shares	—	30 Sep 2017
STATE STREET CORP	13F Company 13F	1.5%	$240,063,000 2,043,321 shares	—	30 Sep 2017
GOLDMAN SACHS GROUP INC	13F Company 13F	1.3%	$210,748,000 1,793,751 shares	—	30 Sep 2017
PERCEPTIVE ADVISORS LLC	13F Company 13F	1.3%	$210,167,000 1,788,802 shares	—	30 Sep 2017
Blue Ridge Capital, L.L.C.	13F Company 13F	1.2%	$179,983,000 1,531,899 shares	—	30 Sep 2017
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F Company 13F	1%	$160,303,004 1,364,397 shares	—	30 Sep 2017
GILDER GAGNON HOWE & CO LLC	13F Company 13F	0.84%	$131,654,000 1,120,555 shares	—	30 Sep 2017
BB BIOTECH AG	13F Company 13F	0.83%	$130,571,000 1,111,338 shares	—	30 Sep 2017
ORBIMED ADVISORS LLC	13F Company 13F	0.81%	$127,453,000 1,084,800 shares	—	30 Sep 2017
D. E. Shaw & Co., Inc.	13F Company 13F	0.74%	$115,429,000 982,454 shares	—	30 Sep 2017
MORGAN STANLEY	13F Company 13F	0.74%	$115,119,000 979,822 shares	—	30 Sep 2017
FIRST TRUST ADVISORS LP	13F Company 13F	0.59%	$92,185,000 784,619 shares	—	30 Sep 2017
12 West Capital Management LP	13F Company 13F	0.53%	$82,243,000 700,000 shares	—	30 Sep 2017
JANUS HENDERSON GROUP PLC	13F Company 13F	0.51%	$80,248,000 683,020 shares	—	30 Sep 2017
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	0.5%	$77,487,000 659,527 shares	—	30 Sep 2017
RTW INVESTMENTS, LP	13F Company 13F	0.47%	$73,236,000 623,338 shares	—	30 Sep 2017
Slate Path Capital LP	13F Company 13F	0.42%	$65,912,000 561,000 shares	—	30 Sep 2017
NORGES BANK	13F Company 13F	0.42%	$65,209,000 555,019 shares	—	30 Sep 2017
ArrowMark Colorado Holdings LLC	13F Company 13F	0.38%	$59,202,000 503,889 shares	—	30 Sep 2017
BRIDGER MANAGEMENT, LLC	13F Company 13F	0.29%	$45,108,000 383,933 shares	—	30 Sep 2017
NORTHERN TRUST CORP	13F Company 13F	0.28%	$44,262,000 376,728 shares	—	30 Sep 2017
Bank of New York Mellon Corp	13F Company 13F	0.26%	$40,194,000 342,104 shares	—	30 Sep 2017
ROCKEFELLER FINANCIAL SERVICES INC	13F Company 13F	0.24%	$37,992,000 323,364 shares	—	30 Sep 2017
Mitsubishi UFJ Trust & Banking Corp	13F Company 13F	0.21%	$32,703,000 278,347 shares	—	30 Sep 2017
Artal Group S.A.	13F Company 13F	0.19%	$29,373,000 250,000 shares	—	30 Sep 2017
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.18%	$28,733,000 244,550 shares	—	30 Sep 2017
683 Capital Management, LLC	13F Company 13F	0.18%	$28,139,000 239,500 shares	—	30 Sep 2017
PDT Partners, LLC	13F Company 13F	0.18%	$27,919,000 237,626 shares	—	30 Sep 2017
PICTET ASSET MANAGEMENT LTD	13F Company 13F	0.17%	$26,039,000 221,628 shares	—	30 Sep 2017
NEW YORK STATE COMMON RETIREMENT FUND	13F Company 13F	0.16%	$25,435,000 216,488 shares	—	30 Sep 2017
Casdin Capital, LLC	13F Company 13F	0.15%	$23,498,000 200,000 shares	—	30 Sep 2017
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	0.14%	$21,156,000 180,058 shares	—	30 Sep 2017
DEUTSCHE BANK AG\	13F Company 13F	0.13%	$20,376,000 173,450 shares	—	30 Sep 2017
FEDERATED HERMES, INC.	13F Company 13F	0.13%	$20,110,000 171,167 shares	—	30 Sep 2017
PEREGRINE CAPITAL MANAGEMENT LLC	13F Company 13F	0.12%	$19,370,000 164,864 shares	—	30 Sep 2017
KORNITZER CAPITAL MANAGEMENT INC /KS	13F Company 13F	0.12%	$19,131,000 162,835 shares	—	30 Sep 2017
CREDIT SUISSE AG/	13F Company 13F	0.12%	$18,672,000 158,926 shares	—	30 Sep 2017
VAN ECK ASSOCIATES CORP	13F Company 13F	0.12%	$18,233,000 155,185 shares	—	30 Sep 2017
FIC CAPITAL INC	13F Company 13F	0.11%	$17,703,000 150,676 shares	—	30 Sep 2017
TWO SIGMA INVESTMENTS, LP	13F Company 13F	0.11%	$16,904,000 143,874 shares	—	30 Sep 2017
TD ASSET MANAGEMENT INC	13F Company 13F	0.1%	$16,307,000 138,795 shares	—	30 Sep 2017
Swiss National Bank	13F Company 13F	0.1%	$16,202,000 137,900 shares	—	30 Sep 2017
Capital World Investors	13F Company 13F	0.1%	$16,178,000 137,700 shares	—	30 Sep 2017
WELLS FARGO & COMPANY/MN	13F Company 13F	0.1%	$15,899,000 135,318 shares	—	30 Sep 2017

13F holder rows

Institutional holders as of Q4 2017

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

Institutions

275

92,127,969

Rows loaded

275

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2017 vs Q3 2017 Across Filers

Q3 2017 holders

228

Q4 2017 holders

275

Holder diff

Investor	Q3 2017 Shares	Q4 2017 Shares	Share Diff	Share Chg %	Q3 2017 Value $	Q4 2017 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.