Duolingo (DUOL): Capital World Investors files 13G/A reporting 0.0% ownership

Rhea-AI Filing Summary

Duolingo, Inc. amended a Schedule 13G to report that Capital World Investors disclaims beneficial ownership of the issuer's Common Stock. The filing lists 0 shares and 0.0% of the class, with an outstanding share count of 40,594,239 shares referenced in the statement. The amendment is signed by a Capital Research and Management Company officer on 05/13/2026.

Insights

Institutional Ownership Analyst

Institution reports no beneficial ownership of Duolingo common stock.

The amendment clarifies that Capital World Investors (a division of Capital Research and Management Company and related investment management entities) is deemed to beneficially own 0 shares or 0.0% of the class. The filing cites 40,594,239 shares outstanding as the reference point for the percentage.

This is an administrative ownership disclosure; cash‑flow treatment and trading intent are not stated in the excerpt. Subsequent institutional filings would show any change in position.

Key Figures

Beneficially owned: 0 shares Percent of class: 0.0% Shares outstanding (referenced): 40,594,239 shares +2 more

5 metrics

Beneficially owned 0 shares Amount beneficially owned as reported in Item 4

Percent of class 0.0% Percent of class reported in Item 4

Shares outstanding (referenced) 40,594,239 shares Shares believed to be outstanding as cited in the filing

CUSIP 26603R106 Identifier for Duolingo common stock on the cover

Signature date 05/13/2026 Date the amendment was signed by Capital Research and Management officer

Key Terms

Schedule 13G/A, Beneficial ownership, CUSIP

3 terms

Schedule 13G/A regulatory

"Amendment No. 1 Duolingo, Inc Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial ownership regulatory

"CWI is deemed to be the beneficial owner of 0 shares or 0.0% of the 40,594,239 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.

CUSIP financial

"Common Stock 26603R106 03/31/2026"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Duolingo, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

26603R106

(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): 26603R106

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 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Duolingo, Inc.
(b)	Address of issuer's principal executive offices: 5900 Penn Avenue, Pittsburgh, PA 15206
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 No.: 26603R106
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: 0 ** **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 0 shares or 0.0% of the 40,594,239 shares believed to be outstanding.
(b)	Percent of class: 0.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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

FAQ

What does Duolingo (DUOL) Schedule 13G/A filed by Capital World Investors state?

It states that Capital World Investors beneficially owns 0 shares of Duolingo common stock, representing 0.0% of the class, with 40,594,239 shares referenced as outstanding.

Does the Schedule 13G/A show any voting or dispositive power for CWI in DUOL?

No. The filing lists 0 for sole and shared voting power and 0 for sole and shared dispositive power over Duolingo common stock.

Who signed the amendment for Capital World Investors on the Duolingo filing?

The amendment is signed by Jae Won Chung, Senior Vice President and Associate General Counsel at Capital Research and Management Company, dated 05/13/2026.

What class of securities and CUSIP are referenced in the amendment?

The filing references Common Stock of Duolingo with CUSIP 26603R106 as the class being reported.