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Duolingo (NASDAQ: DUOL) shares unvetted DAU growth data after accidental reveal

(Moderate)
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Duolingo, Inc. (symbol DUOL) reported that, during an in-person investor meeting on August 18, 2026, a screen inadvertently showed internal data indicating the estimated DAU growth rate on August 17, 2026 was 27.4% compared with the same day a year earlier, with similar estimated growth for earlier days in August. Duolingo states this preliminary internal data has not undergone its normal review and validation and should not be interpreted as indicating expected results for Q3 2026 or any future period. The company reiterates that its most recent guidance remains that provided in its Q2 2026 shareholder letter dated August 5, 2026 and that it is not providing additional or updated guidance at this time.

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Filing Explained

The August 18 8-K furnishes the preliminary DAU information; it is not treated as filed under Exchange Act Section 18 and is not incorporated by reference into other filings unless specifically referenced.

Item 7.01 Regulation FD Disclosure Disclosure
Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.
Estimated DAU growth rate 27.4% Estimated DAU growth rate on August 17, 2026 versus the comparable day of the prior year
Date of preliminary DAU metric August 17, 2026 Date for which the 27.4% estimated DAU growth rate was shown
Q2 2026 shareholder letter date August 5, 2026 Date of Duolingo’s most recent guidance referenced in the disclosure
8-K report date August 18, 2026 Date Duolingo reported the inadvertent display of preliminary DAU data
Regulation FD regulatory
"Item 7.01 Regulation FD Disclosure."
Regulation FD is a rule that prevents company insiders, like executives, from sharing important information with some people before others get it. It matters because it helps ensure all investors have equal access to key news, making the stock market fairer and reducing chances of insider trading.
DAU growth rate financial
"information indicating that the DAU growth rate on August 17, 2026 was estimated"
shareholder letter financial
"guidance is set forth in its Q2 2026 shareholder letter dated August 5, 2026"
A shareholder letter is a message from a company's leadership to its investors, often included in annual reports or updates. It provides insights into the company's performance, goals, and future plans, helping shareholders understand how their investment is doing and what the company aims to achieve. Think of it as a personal note from the company's leaders sharing their vision and progress with those who have a stake in its success.
guidance financial
"The Company is not providing any, and does not intend to provide, additional or updated guidance"
Guidance is the information that a company provides about its expected future performance or plans. It helps investors understand what the company aims to achieve and whether it anticipates growth or challenges ahead, much like a weather forecast helps people prepare for upcoming conditions. This information influences investment decisions by giving a clearer picture of the company's outlook.

FAQ

What information did Duolingo (DUOL) accidentally show investors on August 18, 2026?

Duolingo accidentally displayed internal data showing an estimated 27.4% DAU growth rate on August 17, 2026 versus the prior year. The company emphasized this data is preliminary, unvalidated, and should not be taken as an indication of Q3 2026 or future results.

How strong was Duolingo’s DAU growth rate in the preliminary data mentioned in this 8-K?

The preliminary internal data showed an estimated 27.4% DAU growth rate on August 17, 2026 year over year. Duolingo also noted similar estimated growth rates for earlier days in August but stressed these figures are not reviewed or validated yet.

Does this Duolingo (DUOL) disclosure change the company’s Q3 2026 guidance?

No. Duolingo explicitly states it is not updating or adding guidance with this disclosure. The company confirms its latest guidance remains that in the Q2 2026 shareholder letter dated August 5, 2026.

Why did Duolingo file a Regulation FD disclosure in this 8-K?

Duolingo filed under Regulation FD because preliminary DAU growth data was inadvertently shown to certain investors. By publicly furnishing the same information, the company aims to ensure fair disclosure to all market participants at the same time.

Is the 27.4% DAU growth figure for Duolingo considered final financial information?

No. Duolingo describes the 27.4% DAU growth figure as preliminary internal data that has not gone through normal review and validation. It cautions that the data should not be read as indicative of Q3 2026 or future results.

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

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Learn about SEC filing dates
0001562088false00015620882026-08-182026-08-18

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): August 18, 2026
Duolingo, Inc.
(Exact name of registrant as specified in its charter)
Delaware001-4065345-3055872
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification Number)
5900 Penn Avenue
Pittsburgh, Pennsylvania 15206
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (412) 567-6602

N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Class A common stock, $0.0001 par value per shareDUOLThe Nasdaq Stock Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐



Item 7.01 Regulation FD Disclosure.

On August 18, 2026, during an in-person meeting with certain investors at the Company's offices, a
screen in the meeting room inadvertently displayed information indicating that the DAU growth rate on
August 17, 2026 was estimated to be 27.4% relative to the comparable day of the prior year and there
had been similar estimated growth rates for the previous days in August.

The Company has not completed its normal review and validation of its preliminary internal data, and this
information should not be read as indicative of the Company's expected results for Q3 2026 or any future
period.

The Company's most recent guidance is set forth in its Q2 2026 shareholder letter dated August 5, 2026.
The Company is not providing any, and does not intend to provide, additional or updated guidance at this
time.

The information in this Current Report on Form 8-K is being furnished and shall not be deemed “filed” for
purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or
otherwise subject to the liabilities of that Section, nor shall it be deemed to be incorporated by reference
into any filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act,
except as expressly set forth by specific reference in such filing.





SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
DUOLINGO, INC.
Date: August 18, 2026By:/s/ Gillian Munson
Gillian Munson
Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

Filing Exhibits & Attachments

3 documents