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Duolingo (NASDAQ: DUOL) CEO exercises 120k PSUs, 54,875 shares withheld

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Duolingo CEO Luis von Ahn exercised performance-based equity awards and had shares withheld to cover taxes. On this date, he exercised derivative awards for 120,000 performance-based restricted stock units that convert into Class B Common Stock, and a corresponding derivative entry for 120,000 shares was recorded.

To satisfy tax obligations, 54,875 shares of Class B Common Stock were disposed of at a reference price of $107.82 per share through a tax-withholding transaction, not an open-market sale. After these transactions, he directly held 3,422,995 shares of Class B Common Stock.

Positive

  • None.

Negative

  • None.
Insider von Ahn Luis
Role President & CEO, Co-Founder
Type Security Shares Price Value
Exercise Performance-Based Restricted Stock Units 120,000 $0.00 --
Exercise Class B Common Stock 120,000 $0.00 --
Tax Withholding Class B Common Stock 54,875 $107.82 $5.92M
Holdings After Transaction: Performance-Based Restricted Stock Units — 420,000 shares (Direct, null); Class B Common Stock — 3,422,995 shares (Direct, null)
Footnotes (1)
  1. The performance-based condition will be satisfied upon the Issuer's Class A common stock achieving certain stock price hurdles over a period of ten years. Vested PSUs will be settled by the issuance of the underlying Class B Common Stock on the first anniversary of vesting, subject to acceleration upon a termination of employment or a change in control of the Issuer. Each Performance-Based Restricted Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Class B Common Stock upon vesting. The PSUs vest upon the satisfaction of both a service-based condition and a performance-based condition. The service-based condition is satisfied as to 25% of the PSUs on each anniversary of the completion of the Issuer's initial public offering of Class A common stock based on the Reporting Person's continuous service as CEO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CEO as a result of death or permanent disability. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.
Tax-withholding shares 54,875 shares Class B Common Stock disposed in tax-withholding transaction
Tax-withholding price $107.82 per share Reference price for 54,875-share tax-withholding disposition
PSUs exercised 120,000 units Performance-Based Restricted Stock Units exercised into Class B stock
Total exercise shares 240,000 shares ExerciseShares across two derivative transactions
Post-transaction holdings 3,422,995 shares Class B Common Stock held directly after transactions
PSU expiration June 21, 2031 Expiration date for Performance-Based Restricted Stock Units
Performance-Based Restricted Stock Units financial
"The performance-based condition will be satisfied upon the Issuer's Class A common stock achieving certain stock price hurdles over a period of ten years."
Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative exercise/conversion financial
"transaction_action": "derivative exercise/conversion""
service-based condition financial
"The service-based condition is satisfied as to 25% of the PSUs on each anniversary of the completion of the Issuer's initial public offering"
Class B Common Stock financial
"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Class A Common Stock financial
"Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
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SEC Form 4
FORM 4UNITED 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*
von Ahn Luis

(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)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
President & CEO, Co-Founder
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance-Based Restricted Stock Units(1)(2)05/27/2026M120,000 (1)(2)06/21/2031Class B Common Stock120,000$0420,000D
Class B Common Stock(3)05/27/2026M120,000 (3) (3)Class A Common Stock120,000$03,422,995D
Class B Common Stock(3)05/27/2026F54,875 (3) (3)Class A Common Stock54,875$107.823,368,120D
Explanation of Responses:
1. The performance-based condition will be satisfied upon the Issuer's Class A common stock achieving certain stock price hurdles over a period of ten years. Vested PSUs will be settled by the issuance of the underlying Class B Common Stock on the first anniversary of vesting, subject to acceleration upon a termination of employment or a change in control of the Issuer.
2. Each Performance-Based Restricted Stock Unit ("PSU") represents a contingent right to receive one share of the Issuer's Class B Common Stock upon vesting. The PSUs vest upon the satisfaction of both a service-based condition and a performance-based condition. The service-based condition is satisfied as to 25% of the PSUs on each anniversary of the completion of the Issuer's initial public offering of Class A common stock based on the Reporting Person's continuous service as CEO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CEO as a result of death or permanent disability.
3. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock in connection with: (i) any transfer, whether or not for value, except for certain permitted transfers further described in the Issuer's amended and restated certificate of incorporation, (ii) such time as the aggregate number of shares of Class B Common Stock outstanding ceases to represent 5% of the aggregate number of shares of Common Stock outstanding, and (iii) the death of the Reporting Person.
Remarks:
/s/ Stephen Chen, as Attorney-in-Fact for Luis von Ahn05/29/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did Duolingo (DUOL) CEO Luis von Ahn report?

Luis von Ahn reported exercising 120,000 performance-based restricted stock units into Class B Common Stock and a related 120,000-share derivative entry. He also reported a tax-withholding disposition of 54,875 Class B shares to satisfy tax obligations tied to these equity awards.

How many Duolingo shares were withheld for Luis von Ahn’s taxes?

A total of 54,875 shares of Duolingo Class B Common Stock were disposed of in a tax-withholding transaction. The shares were valued at a reference price of $107.82 per share to cover tax liabilities associated with his equity award exercises.

Did the Duolingo CEO buy or sell shares in the open market?

The filing shows no open-market purchases or sales. Instead, it records derivative exercises of 120,000 performance-based restricted stock units and a 54,875-share tax-withholding disposition, which represents shares withheld to pay taxes rather than a discretionary market trade.

How many Duolingo shares does Luis von Ahn hold after these transactions?

After the reported transactions, Luis von Ahn directly held 3,422,995 shares of Duolingo Class B Common Stock. This figure reflects his position following the 120,000-unit performance-based award exercise and the 54,875-share tax-withholding disposition noted in the Form 4 filing.

What are Duolingo performance-based restricted stock units reported in this Form 4?

Each performance-based restricted stock unit represents a contingent right to receive one share of Class B Common Stock. The units vest only after both service-based and performance-based conditions are met, including stock price hurdles over up to ten years, as described in the filing footnotes.

How do Duolingo Class B shares reported here relate to Class A stock?

Each share of Duolingo Class B Common Stock is convertible into one share of Class A Common Stock at the holder’s option. Class B shares also automatically convert in certain situations, including most transfers, low Class B outstanding levels, or upon the reporting person’s death.