Amgen: Capital World Investors Holds 5.5% Stake

Amgen Inc. shareholder Capital World Investors reports beneficial ownership of 29,596,119 shares of Common Stock, equal to 5.5% of the 539,067,675 shares outstanding disclosed in the filing.

Rhea-AI Filing Summary

Amgen Inc. shareholder Capital World Investors reports beneficial ownership of 29,596,119 shares of Common Stock, equal to 5.5% of the 539,067,675 shares outstanding disclosed in the filing. The filing shows 29,296,381 shares with sole voting power and 29,596,119 shares with sole dispositive power.

Insights

Institutional Ownership Analyst

Large passive stake disclosed: 5.5% of Amgen common stock.

Capital World Investors is reported as the beneficial owner of 29,596,119 shares, representing 5.5% of the 539,067,675 shares stated as outstanding. The filing attributes sole voting power to 29,296,381 shares.

Because this is a Schedule 13G disclosure, it is consistent with passive institutional ownership reporting; subsequent filings could show changes in voting or disposition power if the position or intent changes.

Corporate Governance Specialist

Disclosure clarifies control rights and ownership scale.

The statement lists both sole voting power and sole dispositive power figures, which investors use to assess influence. The filing names Capital World Investors and affiliated investment management entities as the reporting group.

Any material change in voting intent or acquisition activity would require a different filing form or amendment under applicable rules.

Key Figures

Beneficially owned: 29,596,119 shares Percent of class: 5.5% Shares outstanding: 539,067,675 shares +1 more

4 metrics

Beneficially owned 29,596,119 shares reported beneficial ownership

Percent of class 5.5% of 539,067,675 shares outstanding

Shares outstanding 539,067,675 shares shares believed to be outstanding

Sole voting power 29,296,381 shares sole power to vote or to direct the vote

Key Terms

Schedule 13G, Beneficial ownership, Sole voting power

3 terms

Schedule 13G regulatory

"Capital World Investors files a Schedule 13G reporting beneficial ownership"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Beneficial ownership financial

"CWI is deemed to be the beneficial owner of 29,596,119 shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole voting power corporate governance

"Sole Voting Power 29,296,381.00 listed in the ownership table"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many Amgen (AMGN) shares does Capital World Investors hold?

Capital World Investors reports beneficial ownership of 29,596,119 shares of Amgen common stock, representing 5.5% of the 539,067,675 shares identified as outstanding in the filing.

What voting power does Capital World Investors have in AMGN?

The filing shows Capital World Investors has sole voting power over 29,296,381 shares and sole dispositive power over 29,596,119 shares, as stated in the Schedule 13G disclosure.

What does Schedule 13G filing indicate about intent?

A Schedule 13G typically indicates passive institutional ownership rather than an activist intent. The form lists beneficial ownership and power figures without stating an active change in voting or control strategy.

Does this filing change Amgen's outstanding share count?

No. The filing reports a beneficial owner’s stake and cites 539,067,675 shares outstanding; it does not alter the company’s outstanding share total or issue new shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/14/2026 - 01:55 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Amgen Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

031162100

(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:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 031162100

1

Names of Reporting Persons

Capital World Investors

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 29,296,381.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 29,596,119.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

29,596,119.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.5 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Amgen Inc.
(b)	Address of issuer's principal executive offices: One Amgen Center Drive, Thousand Oaks, CA 91320
Item 2.
(a)	Name of person filing: Capital World Investors
(b)	Address or principal business office or, if none, residence: 333 SOUTH HOPE STREET, 55TH FLOOR, LOS ANGELES, CALIFORNIA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 031162100
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)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	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)	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)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 29,596,119 ** **Capital World Investors ("CWI") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CWI's divisions of each of the investment management entities collectively provide investment management services under the name "Capital World Investors." CWI is deemed to be the beneficial owner of 29,596,119 shares or 5.5% of the 539,067,675 shares believed to be outstanding.
(b)	Percent of class: 5.5 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 29,296,381
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 29,596,119
	(iv) Shared power to dispose or to direct the disposition of: 0
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.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
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.

Capital World Investors

Signature:	Jae Won Chung
Name/Title:	Senior Vice President and Associate General Counsel, Capital Research and Management Company
Date:	05/13/2026