• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
PublishGo to App
    Quantisnow Logo

    © 2026 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    Amendment: SEC Form SCHEDULE 13G/A filed by Alnylam Pharmaceuticals Inc.

    5/6/26 11:00:55 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $ALNY alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    (Amendment No. 23)


    ALNYLAM PHARMACEUTICALS INC

    (Name of Issuer)


    COMMON STOCK

    (Title of Class of Securities)




    02043Q107

    (CUSIP Number)
    03/31/2026

    (Date of Event Which Requires Filing of this Statement)


    Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
    Checkbox checked   Rule 13d-1(b)
    Checkbox not checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)




    schemaVersion:


    SCHEDULE 13G

    CUSIP Number(s):
    02043Q107


    1Names of Reporting Persons

    FMR LLC
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    DELAWARE
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    14,103,896.98
    6Shared Voting Power

    0.00
    7Sole Dispositive Power

    14,640,524.87
    8Shared Dispositive Power

    0.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    14,640,524.87
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    11.0 %
    12Type of Reporting Person (See Instructions)

    HC


    SCHEDULE 13G

    CUSIP Number(s):
    02043Q107


    1Names of Reporting Persons

    Abigail P. Johnson
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    0.00
    7Sole Dispositive Power

    14,640,524.87
    8Shared Dispositive Power

    0.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    14,640,524.87
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    11.0 %
    12Type of Reporting Person (See Instructions)

    IN


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    ALNYLAM PHARMACEUTICALS INC
    (b)Address of issuer's principal executive offices:

    675 West Kendall Street,Henri A. Termeer Square,Cambridge,MA,US,02142
    Item 2. 
    (a)Name of person filing:

    FMR LLC
    (b)Address or principal business office or, if none, residence:

    245 Summer Street, Boston, Massachusetts 02210
    (c)Citizenship:

    Not applicable
    (d)Title of class of securities:

    COMMON STOCK
    (e)CUSIP No.:

    02043Q107
    Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
    (a)Checkbox not checked   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
    (b)Checkbox not checked   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
    (c)Checkbox not checked   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
    (d)Checkbox not checked   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
    (e)Checkbox not checked   An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
    (f)Checkbox not checked   An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
    (g)Checkbox checked   A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
    (h)Checkbox not checked   A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
    (i)Checkbox not checked   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
    (j)Checkbox not checked   A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
           please specify the type of institution:
    (k)Checkbox not checked   Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
     
    Item 4.Ownership
    (a)Amount beneficially owned:

    14640524.87
    (b)Percent of class:

    11.0  %
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    Please see the responses to Items 5 and 6 on the cover page.

     (ii) Shared power to vote or to direct the vote:

    0.00

     (iii) Sole power to dispose or to direct the disposition of:

    14640524.87

     (iv) Shared power to dispose or to direct the disposition of:

    0.00

    Item 5.Ownership of 5 Percent or Less of a Class.
     
    Not Applicable
    Item 6.Ownership of more than 5 Percent on Behalf of Another Person.
     
    If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.


    One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of ALNYLAM PHARMACEUTICALS INC. No one other person's interest in the COMMON STOCK of ALNYLAM PHARMACEUTICALS INC is more than five percent of the total outstanding COMMON STOCK.
    Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
     
    If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.


    See attached Exhibit 99.
    Item 8.Identification and Classification of Members of the Group.
     
    Not Applicable
    Item 9.Notice of Dissolution of Group.
     
    Not Applicable

    Item 10.Certifications:
     
    By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    FMR LLC
     
    Signature:Richard Bourgelas
    Name/Title:Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
    Date:05/05/2026
     
    Abigail P. Johnson
     
    Signature:Richard Bourgelas
    Name/Title:Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of Abigail P. Johnson*
    Date:05/05/2026

    Comments accompanying signature:  *This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on April 29,2026, accession number: 0000315066-26-000738.
    Exhibit Information

    Please see Exhibit 99 for 13d-1(k) (1) agreement.

    Get the next $ALNY alert in real time by email

    Crush Q1 2026 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $ALNY

    DatePrice TargetRatingAnalyst
    5/19/2026$380.00Buy
    Citigroup
    3/16/2026$330.00Buy → Hold
    Jefferies
    1/28/2026$527.00Overweight
    Barclays
    1/7/2026$500.00Outperform
    Oppenheimer
    8/4/2025Underperform → Peer Perform
    Wolfe Research
    8/4/2025$490.00Perform → Outperform
    Oppenheimer
    7/30/2025$370.00Outperform
    Raymond James
    7/21/2025$385.00Buy
    Truist
    More analyst ratings

    $ALNY
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

    View All

    Citigroup initiated coverage on Alnylam Pharma with a new price target

    Citigroup initiated coverage of Alnylam Pharma with a rating of Buy and set a new price target of $380.00

    5/19/26 8:29:23 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam Pharma downgraded by Jefferies with a new price target

    Jefferies downgraded Alnylam Pharma from Buy to Hold and set a new price target of $330.00

    3/16/26 8:35:18 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Barclays resumed coverage on Alnylam Pharma with a new price target

    Barclays resumed coverage of Alnylam Pharma with a rating of Overweight and set a new price target of $527.00

    1/28/26 7:15:18 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Director Pyott David E I sold $1,145,853 worth of shares (3,830 units at $299.18) as part of a pre-agreed trading plan and converted options into 3,830 shares (SEC Form 4)

    4 - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Issuer)

    6/3/26 4:25:20 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Director Cravatt Benjamin

    4 - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Issuer)

    6/3/26 4:23:40 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 3 filed by new insider Cravatt Benjamin

    3 - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Issuer)

    6/3/26 4:21:30 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    FDA approvals

    Live FDA approvals issued by the Food and Drug Administration and FDA breaking news

    View All

    FDA Approval for GIVLAARI issued to ALNYLAM PHARMS INC

    Submission status for ALNYLAM PHARMS INC's drug GIVLAARI (SUPPL-7) with active ingredient GIVOSIRAN SODIUM has changed to 'Approval' on 04/29/2024. Application Category: NDA, Application Number: 212194, Application Classification: Labeling

    4/30/24 1:44:03 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    FDA Approval for OXLUMO issued to ALNYLAM PHARMS INC

    Submission status for ALNYLAM PHARMS INC's drug OXLUMO (SUPPL-4) with active ingredient LUMASIRAN SODIUM has changed to 'Approval' on 09/19/2023. Application Category: NDA, Application Number: 214103, Application Classification: Labeling

    9/20/23 2:36:38 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    FDA Approval for AMVUTTRA issued to ALNYLAM PHARMS INC

    Submission status for ALNYLAM PHARMS INC's drug AMVUTTRA (SUPPL-2) with active ingredient VUTRISIRAN has changed to 'Approval' on 02/16/2023. Application Category: NDA, Application Number: 215515, Application Classification: Labeling

    2/17/23 12:30:09 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    Alnylam to Webcast Conference Call Discussing Second Quarter 2026 Financial Results

    Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, announced today that it will report financial results for the second quarter ending June 30, 2026 on Thursday, July 30, 2026, before the U.S. financial markets open. Management will provide an update on the Company and discuss second quarter 2026 results as well as expectations for the future via conference call on Thursday, July 30, 2026 at 8:30 am ET. A live audio webcast of the call will be available on the Investors section of the Company’s website at www.alnylam.com/events. An archived webcast will be available on the Alnylam website approximately two hours after the event. About Alnylam Pharmaceuti

    7/16/26 8:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam Highlights Progress with Neuroscience Programs at AAIC 2026, Showcasing Potential of RNAi in Neurological Disease

    − Initiates Global Phase 2 APPlauDS Study of Mivelsiran in Down Syndrome–Associated Alzheimer’s Disease (DS-AD) − − Announces Completion of Enrollment in the Phase 2 cAPPricorn-1 Study of Mivelsiran in Cerebral Amyloid Angiopathy (CAA) − − Presents Updated Phase 1 Data on Mivelsiran in Early Onset Alzheimer’s Disease (EOAD) Showing Low Incidence of Amyloid-Related Imaging Abnormalities (ARIA) − − Shares Preclinical Data and Design of Ongoing Phase 1 Study of Tau-Targeting ALN‑5288 in Alzheimer’s Patients – Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, today shared advances across its growing neuroscience portfolio at the Alzheimer’s Association

    7/15/26 3:30:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Komodo Expands Strategic Partnership With Alnylam to Scale AI-Powered Intelligence Platform

    Expanded agreement extends Marmot across key enterprise functions, advancing a new operating model for AI-powered decision-making in Life Sciences Komodo also unveils new Marmot capabilities to move organizations beyond AI experimentation and into enterprise-wide intelligence Komodo Health®, the leader in AI-powered healthcare intelligence, today announced an expanded strategic partnership with Alnylam Pharmaceuticals (NASDAQ:ALNY), the leading RNAi therapeutics company to scale Marmot™, Komodo’s analytics AI platform, across key enterprise functions at Alnylam. Built on the Healthcare Map®, the industry’s most comprehensive view of more than 330 million de-identified patient journeys

    6/25/26 9:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    SEC Filings

    View All

    SEC Form 144 filed by Alnylam Pharmaceuticals Inc.

    144 - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Subject)

    6/1/26 4:25:14 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam Pharmaceuticals Inc. filed SEC Form 8-K: Leadership Update, Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits

    8-K - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Filer)

    5/27/26 4:30:22 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: SEC Form SCHEDULE 13G/A filed by Alnylam Pharmaceuticals Inc.

    SCHEDULE 13G/A - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Subject)

    5/6/26 11:00:55 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Insider Purchases

    Insider purchases reveal critical bullish sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Director Reitan Colleen F bought $10,363 worth of shares (36 units at $287.85), sold $8,383 worth of shares (36 units at $232.86) and was granted 775 shares (SEC Form 4)

    4 - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Issuer)

    5/12/25 4:05:00 PM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Leadership Updates

    Live Leadership Updates

    View All

    Alnylam Pharmaceuticals Announces Changes to Board of Directors

    – Mike Bonney and Carolyn Bertozzi to Depart; Company Appoints Stuart Arbuckle as New Independent Director – Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, today announced changes to its Board of Directors, including the departure of two directors and the appointment of a new independent director. Mike Bonney and Carolyn Bertozzi, Ph.D., who have served in key roles on Alnylam's Board, stepped down effective December 2, 2025. Mr. Bonney joined our Board in 2014 and served as Board Chair from December 2015 to August 2021 and as Executive Chair from August 2021 to January 2023. He helped to guide the company through major milestones and significant growt

    12/3/25 8:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam Pharmaceuticals joins Alliance for Genomic Discovery, expanding diverse clinical genomic dataset to drive precision medicine

    Alnylam, a leader in RNA interference (RNAi) therapeutics, will utilize the AGD dataset to inform development of 'gene silencing' medicines Members leverage AI-powered dataset to accelerate pharma R&D, and ensure that disease-impacting discoveries benefit all people SAN DIEGO, Sept. 18, 2025 /PRNewswire/ -- Illumina, Inc. (NASDAQ:ILMN), and Nashville Biosciences, LLC (NashBio), today announced Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY) (Alnylam) as a member of the Alliance for Genomic Discovery (AGD). Alnylam, a pioneer in RNA interference (RNAi) therapeutics, will utilize the AGD clinical genomic database to derive real-world insights and accelerate drug target discovery.

    9/18/25 9:15:00 AM ET
    $ALNY
    $ILMN
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Medical Specialities

    Alnylam Announces Retirement of Longtime Board Member, Dr. Phillip A. Sharp, Company Co-Founder and Industry Luminary

    Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, today announced the retirement of Dr. Phillip A. Sharp, Ph.D., from the Company's Board of Directors, effective as of May 8, 2025. Dr. Sharp has served as a key advisor to Alnylam since he co-founded the Company in 2002. Dr. Sharp will remain a member of the Alnylam Scientific Advisory Board. "Phil helped pioneer the RNAi revolution, sparking the scientific collaboration that led to Alnylam's founding and the development of a transformative new class of medicines," said Yvonne Greenstreet, MBChB, Chief Executive Officer of Alnylam. "He has provided invaluable guidance over the past twenty-two years that has

    3/5/25 7:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Financials

    Live finance-specific insights

    View All

    Alnylam to Webcast Conference Call Discussing Second Quarter 2026 Financial Results

    Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, announced today that it will report financial results for the second quarter ending June 30, 2026 on Thursday, July 30, 2026, before the U.S. financial markets open. Management will provide an update on the Company and discuss second quarter 2026 results as well as expectations for the future via conference call on Thursday, July 30, 2026 at 8:30 am ET. A live audio webcast of the call will be available on the Investors section of the Company’s website at www.alnylam.com/events. An archived webcast will be available on the Alnylam website approximately two hours after the event. About Alnylam Pharmaceuti

    7/16/26 8:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam Pharmaceuticals Reports First Quarter 2026 Financial Results and Highlights Recent Period Progress

    − Achieved First Quarter 2026 Global Net Product Revenues of $1,036 Million (121% Growth Compared with Q1 2025), Driven Primarily by Total TTR Revenues of $910 Million (153% Growth Compared with Q1 2025) – − Reiterates 2026 Financial Guidance, Including Combined Net Product Revenues of $4,900 Million to $5,300 Million, and Total TTR Net Product Revenues of $4,400 to $4,700 Million – − New Data Presented at ACC.26 Further Support Use of Vutrisiran as First-Line Treatment for ATTR-CM – − Established Collaborations with Viz.ai and AHA Focused on Earlier Diagnosis, Coordinated Care and Long-Term Patient Impact in ATTR-CM – − Deep Pipeline Progressing Toward Multiple Clinical Readouts Du

    4/30/26 8:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Alnylam to Webcast Conference Call Discussing First Quarter 2026 Financial Results

    Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY), the leading RNAi therapeutics company, announced today that it will report financial results for the first quarter ending March 31, 2026 on Thursday, April 30, 2026, before the U.S. financial markets open. Management will provide an update on the Company and discuss first quarter 2026 results as well as expectations for the future via conference call on Thursday, April 30, 2026 at 8:30 am ET. A live audio webcast of the call will be available on the Investors section of the Company's website at www.alnylam.com/events. An archived webcast will be available on the Alnylam website approximately two hours after the event. About Alnylam Pharmaceut

    4/16/26 8:00:00 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ALNY
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    Amendment: SEC Form SC 13G/A filed by Alnylam Pharmaceuticals Inc.

    SC 13G/A - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Subject)

    11/12/24 9:50:12 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: SEC Form SC 13G/A filed by Alnylam Pharmaceuticals Inc.

    SC 13G/A - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Subject)

    11/8/24 10:34:33 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: SEC Form SC 13G/A filed by Alnylam Pharmaceuticals Inc.

    SC 13G/A - ALNYLAM PHARMACEUTICALS, INC. (0001178670) (Subject)

    8/12/24 9:40:06 AM ET
    $ALNY
    Biotechnology: Pharmaceutical Preparations
    Health Care