Capital World Investors (NASDAQ: FSLY) reports 5.3% beneficial stake in Fastly

Rhea-AI Filing Summary

Capital World Investors, a division of Capital Research and Management Company and affiliated investment management entities, reports beneficial ownership of Fastly, Inc. common stock. The filing states beneficial ownership of 8,228,136 shares, representing 5.3% of Fastly’s 156,500,000 shares believed to be outstanding as of June 30, 2026.

Capital World Investors has sole voting and dispositive power over all 8,228,136 shares, with no shared voting or dispositive power reported. The filing notes that other persons, including SMALLCAP World Fund, Inc., may have rights to receive dividends or proceeds from these securities.

Key Figures

Beneficially owned shares: 8,228,136 shares Percent of class: 5.3% Shares believed outstanding: 156,500,000 shares +3 more

6 metrics

Beneficially owned shares 8,228,136 shares Fastly common stock beneficially owned by Capital World Investors

Percent of class 5.3% Portion of Fastly common stock class held by Capital World Investors

Shares believed outstanding 156,500,000 shares Fastly common stock believed to be outstanding for percentage calculation

Sole voting power 8,228,136 shares Shares over which Capital World Investors has sole power to vote

Sole dispositive power 8,228,136 shares Shares over which Capital World Investors has sole power to dispose

Information date 06/30/2026 Date as of which ownership information is stated

Key Terms

beneficial owner, sole voting power, sole dispositive power, Schedule 13G, +1 more

5 terms

beneficial owner financial

"CWI is deemed to be the beneficial owner of 8,228,136 shares"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

sole voting power financial

"Sole Voting Power 8,228,136.00"

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.

sole dispositive power financial

"Sole Dispositive Power 8,228,136.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G regulatory

"Ownership is reported on Schedule 13G for Fastly, Inc."

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.

percent of class financial

"CWI is deemed to be the beneficial owner of 8,228,136 shares or 5.3% of the 156,500,000 shares"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

How much of Fastly (FSLY) does Capital World Investors beneficially own?

Capital World Investors is reported as the beneficial owner of 8,228,136 Fastly shares, representing 5.3% of the class. This stake is based on 156,500,000 shares of Fastly common stock believed to be outstanding.

What percentage of Fastly (FSLY) outstanding shares is held by Capital World Investors?

Capital World Investors reports holding 5.3% of Fastly’s common stock. This percentage is calculated relative to 156,500,000 shares of Fastly common stock believed to be outstanding as referenced in the ownership disclosure.

Does Capital World Investors have sole or shared voting power over its Fastly (FSLY) shares?

Capital World Investors reports sole voting power over 8,228,136 shares of Fastly and no shared voting power. It also reports sole dispositive power over the same number of shares, with no shared dispositive power indicated.

What is the total number of Fastly (FSLY) shares believed to be outstanding in this filing?

The ownership statement indicates that Capital World Investors’ stake of 8,228,136 shares equals 5.3% of 156,500,000 Fastly shares believed to be outstanding. This share count is the reference base for the reported percentage of class.

Who may have rights to dividends or sale proceeds from the Fastly (FSLY) shares held by Capital World Investors?

The filing notes that other persons may have rights to receive dividends or sale proceeds, specifically identifying SMALLCAP World Fund, Inc.. These rights relate to the securities over which Capital World Investors is deemed the beneficial owner.

What is the form and date associated with Capital World Investors’ Fastly (FSLY) ownership report?

The ownership is reported on a Schedule 13G for Fastly, Inc. common stock, with information as of June 30, 2026. The signature block is dated August 11, 2026 and executed by a Vice President and Senior Counsel of Capital Research and Management Company.

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Available on EDGAR 08/12/2026 - 05:41 PM Accepted by SEC EDGAR 08/12/2026 - 05:40 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Fastly, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

31188V100

(CUSIP Number)

06/30/2026

(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): 31188V100

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 8,228,136.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 8,228,136.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,228,136.00

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)

5.3 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Fastly, Inc.
(b)	Address of issuer's principal executive offices: 475 Brannan Street, Suite 300, San Francisco, CA 94107
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): 31188V100
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: 8,228,136 ** **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 8,228,136 shares or 5.3% of the 156,500,000 shares believed to be outstanding.
(b)	Percent of class: 5.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 8,228,136
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 8,228,136
	(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.
	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. SMALLCAP World Fund, Inc.
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:	Timothy J. Moon
Name/Title:	Vice President and Senior Counsel, Capital Research and Management Company
Date:	08/11/2026