Duolingo director Shelton receives 100-unit stock grant

Each RSU represents a right to one Class A share, to be settled on a date Shelton selects under the Plan or as otherwise provided.

Rhea-AI Filing Summary

Duolingo, Inc. director James H. Shelton acquired an award of 100 fully vested restricted stock units on October 10, 2026, in lieu of cash retainers under the Amended and Restated Non-Employee Director Compensation Program, following his election. The reported per-share amount was $149.92. Shelton held 11,853 shares directly following the award. Each unit represents the right to receive one Class A share; settlement is under the Plan.

Insider Trade Summary

Grant/Award: 100 shares

Grant/Award 1 txn

Insider Shelton James H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock F1	100	$149.92	$15K

Holdings After Transaction: Class A Common Stock — 11,853 shares (Direct)

Footnotes (1)

1. F1. Represents an award of fully vested restricted stock units ("RSUs") in lieu of cash retainers pursuant to reporting person's election under the Issuer's Amended and Restated Non-Employee Director Compensation Program (the "Plan"). Each RSU represents the right to receive one share of the Issuer's Class A Common Stock and will be settled either on a date selected by the reporting person pursuant to the Plan or as otherwise provided under the Plan.

Key Figures

Restricted stock units awarded: 100 units Reported per-share amount: $149.92 per share Direct shares following award: 11,853 shares +1 more

4 metrics

Restricted stock units awarded 100 units Fully vested award on October 10, 2026

Reported per-share amount $149.92 per share Award reported on October 10, 2026

Direct shares following award 11,853 shares James H. Shelton's reported direct holdings after the transaction

Shares per restricted stock unit 1 share Each unit represents the right to receive one Class A share

Key Terms

restricted stock units, fully vested, Non-Employee Director Compensation Program

3 terms

restricted stock units financial

"award of fully vested restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

fully vested financial

"award of fully vested restricted stock units"

Non-Employee Director Compensation Program financial

"Issuer's Amended and Restated Non-Employee Director Compensation Program"

FAQ

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

How many shares did DUOL director James H. Shelton receive?

James H. Shelton received an award of 100 fully vested restricted stock units in lieu of cash retainers under the Non-Employee Director Compensation Program. The reported per-share amount was $149.92.

How are James H. Shelton’s DUOL restricted stock units settled?

Each restricted stock unit represents the right to receive one share of Class A Common Stock. Settlement will occur on a date Shelton selects under the Plan or as otherwise provided under the Plan.

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

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Available on EDGAR 10/13/2026 - 08:13 PM EDT Accepted by SEC EDGAR 10/13/2026 - 08:13 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Shelton James H

(Last) (First) (Middle)

C/O DUOLINGO, INC.

5900 PENN AVENUE

(Street)

PITTSBURGH PENNSYLVANIA 15206

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Duolingo, Inc. [ DUOL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	10/10/2026		A		100	A(1)	$149.92	11,853	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an award of fully vested restricted stock units ("RSUs") in lieu of cash retainers pursuant to reporting person's election under the Issuer's Amended and Restated Non-Employee Director Compensation Program (the "Plan"). Each RSU represents the right to receive one share of the Issuer's Class A Common Stock and will be settled either on a date selected by the reporting person pursuant to the Plan or as otherwise provided under the Plan.

Remarks:

	/s/ Stephen Chen, as Attorney-in-Fact for James H. Shelton	10/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)