STOCK TITAN

[Form 4] Duolingo, Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Severin Hacker, Chief Technology Officer and Co‑Founder of Duolingo, filed a Form 4 disclosing insider transactions dated 08/20/2025. The filing shows a conversion and a gift: 10,000 shares of Class B common stock were converted into 10,000 shares of Class A common stock and reported as acquired at $0. On the same date, 10,000 shares of Class A common stock were disposed of as a gift at $0. After these transactions, the reporting person (indirectly via the SBH Trust, of which he is trustee) beneficially owns 2,886,917 shares of Class A common stock. The Form 4 was signed by an attorney‑in‑fact on 08/22/2025. The filing notes that Class B shares are convertible 1:1 into Class A and may auto‑convert on transfer, below a 5% threshold, or upon death.

Severin Hacker, Chief Technology Officer e co‑fondatore di Duolingo, ha presentato un Form 4 che dichiara operazioni di insider datato 20/08/2025. La comunicazione riporta una conversione e una donazione: 10.000 azioni di classe B sono state convertite in 10.000 azioni di classe A e sono state indicate come acquisite a $0. Nello stesso giorno, 10.000 azioni di classe A sono state trasferite a titolo di regalo a $0. Dopo queste operazioni la persona che ha effettuato la segnalazione (indirettamente tramite lo SBH Trust, di cui è trustee) beneficia della proprietà di 2.886.917 azioni di classe A. Il Form 4 è stato firmato da un procuratore il 22/08/2025. La nota di deposito specifica che le azioni di classe B sono convertibili 1:1 in azioni di classe A e possono convertirsi automaticamente in caso di trasferimento, se si scende sotto la soglia del 5%, o al momento del decesso.

Severin Hacker, Director de Tecnología y cofundador de Duolingo, presentó un Formulario 4 que revela transacciones de insider con fecha 20/08/2025. El documento muestra una conversión y un regalo: 10.000 acciones clase B se convirtieron en 10.000 acciones clase A y se informaron como adquiridas a $0. En la misma fecha, 10.000 acciones clase A fueron donadas a $0. Tras estas operaciones, la persona que informa (indirectamente a través del SBH Trust, del que es fiduciario) posee beneficiariamente 2.886.917 acciones clase A. El Form 4 fue firmado por un apoderado el 22/08/2025. El documento indica que las acciones clase B son convertibles 1:1 en clase A y pueden convertirse automáticamente al transferirse, si se cae por debajo del umbral del 5%, o al fallecimiento.

세베린 해커(Severin Hacker) 듀오링고 최고기술책임자(CTO) 겸 공동창업자는 2025-08-20자 내부자거래 신고서(Form 4)를 제출했습니다. 해당 신고서에는 전환과 증여가 기재되어 있습니다: 클래스 B 보통주 10,000주가 클래스 A 보통주 10,000주로 전환되었고 취득가액은 $0로 보고되었습니다. 같은 날짜에 클래스 A 보통주 10,000주가 증여로 처분되었으며 가액은 $0입니다. 이 거래들 이후 신고인(그가 수탁자인 SBH 신탁을 통해 간접 보유)은 클래스 A 보통주 2,886,917주를 실질적으로 보유하고 있습니다. Form 4는 2025-08-22에 대리인(법무대리인)이 서명했습니다. 신고서는 클래스 B 주식이 클래스 A로 1:1 전환 가능하며 이전 시, 5% 미만으로 떨어질 때 또는 사망 시 자동 전환될 수 있다고 명시합니다.

Severin Hacker, directeur technique (CTO) et cofondateur de Duolingo, a déposé un Formulaire 4 déclarant des transactions d'initiés daté du 20/08/2025. Le dépôt indique une conversion et un don : 10 000 actions de classe B ont été converties en 10 000 actions de classe A et déclarées acquises à 0 $. À la même date, 10 000 actions de classe A ont été cédées à titre de don à 0 $. Après ces opérations, la personne déclarante (indirectement via le SBH Trust, dont il est le fiduciaire) détient effectivement 2 886 917 actions de classe A. Le Form 4 a été signé par un mandataire le 22/08/2025. Le dépôt précise que les actions de classe B sont convertibles 1:1 en classe A et peuvent se convertir automatiquement en cas de transfert, si le seuil de 5% est franchi à la baisse, ou au décès.

Severin Hacker, Chief Technology Officer und Mitgründer von Duolingo, reichte ein Form 4 zur Offenlegung von Insidertransaktionen mit Datum 20.08.2025 ein. Die Einreichung zeigt eine Umwandlung und eine Schenkung: 10.000 Aktien der Klasse B wurden umgewandelt in 10.000 Aktien der Klasse A und als zu $0 erworben gemeldet. Am selben Tag wurden 10.000 Aktien der Klasse A als Geschenk zu $0 veräußert. Nach diesen Transaktionen besitzt die meldende Person (indirekt über den SBH Trust, dessen Treuhänder er ist) wirtschaftlich 2.886.917 Aktien der Klasse A. Das Form 4 wurde am 22.08.2025 von einem Bevollmächtigten unterschrieben. In der Einreichung wird angegeben, dass Klasse‑B‑Aktien 1:1 in Klasse‑A‑Aktien umwandelbar sind und bei Übertragung, Unterschreiten der 5%‑Schwelle oder im Todesfall automatisch umgewandelt werden können.

Positive
  • Conversion of Class B to Class A clarified, simplifying share class composition for the reporting person
  • Continued substantial indirect ownership of 2,886,917 Class A shares via SBH Trust, indicating retained economic interest
  • Proper disclosure and signature by attorney‑in‑fact with filing dates provided
Negative
  • 10,000 Class A shares were gifted, representing an outflow of shares from the reporting person's direct beneficial holdings
  • Transactions recorded at $0 provide no information on monetary consideration received

Insights

TL;DR: Insider converted Class B to Class A and made a gift; overall ownership remains substantial.

The Form 4 documents a technical conversion of 10,000 Class B shares into 10,000 Class A shares and a contemporaneous gift of 10,000 Class A shares, both recorded at $0. The beneficial ownership after the reporting transactions remains large at 2,886,917 shares held indirectly via the SBH Trust. This filing appears procedural—reflecting conversion mechanics and a charitable or personal transfer—rather than a market sale, so it likely has limited immediate valuation impact. All details provided are explicit in the filing; no financial proceeds or price realizations are reported.

TL;DR: Transaction highlights trustee relationship and conversion rights; governance impacts are routine and disclosed.

The disclosure clarifies that the reporting person is trustee of the SBH Trust and retains indirect ownership. The Form reiterates governance provisions: Class B converts 1:1 to Class A and auto‑converts on transfer, threshold drop below 5%, or death. The gift of Class A shares and the conversion are consistent with those charter provisions and with standard insider reporting obligations. Filing was executed by an attorney‑in‑fact and properly documents the nature of indirect ownership. Materiality to corporate control is limited given continued substantial indirect holdings.

Severin Hacker, Chief Technology Officer e co‑fondatore di Duolingo, ha presentato un Form 4 che dichiara operazioni di insider datato 20/08/2025. La comunicazione riporta una conversione e una donazione: 10.000 azioni di classe B sono state convertite in 10.000 azioni di classe A e sono state indicate come acquisite a $0. Nello stesso giorno, 10.000 azioni di classe A sono state trasferite a titolo di regalo a $0. Dopo queste operazioni la persona che ha effettuato la segnalazione (indirettamente tramite lo SBH Trust, di cui è trustee) beneficia della proprietà di 2.886.917 azioni di classe A. Il Form 4 è stato firmato da un procuratore il 22/08/2025. La nota di deposito specifica che le azioni di classe B sono convertibili 1:1 in azioni di classe A e possono convertirsi automaticamente in caso di trasferimento, se si scende sotto la soglia del 5%, o al momento del decesso.

Severin Hacker, Director de Tecnología y cofundador de Duolingo, presentó un Formulario 4 que revela transacciones de insider con fecha 20/08/2025. El documento muestra una conversión y un regalo: 10.000 acciones clase B se convirtieron en 10.000 acciones clase A y se informaron como adquiridas a $0. En la misma fecha, 10.000 acciones clase A fueron donadas a $0. Tras estas operaciones, la persona que informa (indirectamente a través del SBH Trust, del que es fiduciario) posee beneficiariamente 2.886.917 acciones clase A. El Form 4 fue firmado por un apoderado el 22/08/2025. El documento indica que las acciones clase B son convertibles 1:1 en clase A y pueden convertirse automáticamente al transferirse, si se cae por debajo del umbral del 5%, o al fallecimiento.

세베린 해커(Severin Hacker) 듀오링고 최고기술책임자(CTO) 겸 공동창업자는 2025-08-20자 내부자거래 신고서(Form 4)를 제출했습니다. 해당 신고서에는 전환과 증여가 기재되어 있습니다: 클래스 B 보통주 10,000주가 클래스 A 보통주 10,000주로 전환되었고 취득가액은 $0로 보고되었습니다. 같은 날짜에 클래스 A 보통주 10,000주가 증여로 처분되었으며 가액은 $0입니다. 이 거래들 이후 신고인(그가 수탁자인 SBH 신탁을 통해 간접 보유)은 클래스 A 보통주 2,886,917주를 실질적으로 보유하고 있습니다. Form 4는 2025-08-22에 대리인(법무대리인)이 서명했습니다. 신고서는 클래스 B 주식이 클래스 A로 1:1 전환 가능하며 이전 시, 5% 미만으로 떨어질 때 또는 사망 시 자동 전환될 수 있다고 명시합니다.

Severin Hacker, directeur technique (CTO) et cofondateur de Duolingo, a déposé un Formulaire 4 déclarant des transactions d'initiés daté du 20/08/2025. Le dépôt indique une conversion et un don : 10 000 actions de classe B ont été converties en 10 000 actions de classe A et déclarées acquises à 0 $. À la même date, 10 000 actions de classe A ont été cédées à titre de don à 0 $. Après ces opérations, la personne déclarante (indirectement via le SBH Trust, dont il est le fiduciaire) détient effectivement 2 886 917 actions de classe A. Le Form 4 a été signé par un mandataire le 22/08/2025. Le dépôt précise que les actions de classe B sont convertibles 1:1 en classe A et peuvent se convertir automatiquement en cas de transfert, si le seuil de 5% est franchi à la baisse, ou au décès.

Severin Hacker, Chief Technology Officer und Mitgründer von Duolingo, reichte ein Form 4 zur Offenlegung von Insidertransaktionen mit Datum 20.08.2025 ein. Die Einreichung zeigt eine Umwandlung und eine Schenkung: 10.000 Aktien der Klasse B wurden umgewandelt in 10.000 Aktien der Klasse A und als zu $0 erworben gemeldet. Am selben Tag wurden 10.000 Aktien der Klasse A als Geschenk zu $0 veräußert. Nach diesen Transaktionen besitzt die meldende Person (indirekt über den SBH Trust, dessen Treuhänder er ist) wirtschaftlich 2.886.917 Aktien der Klasse A. Das Form 4 wurde am 22.08.2025 von einem Bevollmächtigten unterschrieben. In der Einreichung wird angegeben, dass Klasse‑B‑Aktien 1:1 in Klasse‑A‑Aktien umwandelbar sind und bei Übertragung, Unterschreiten der 5%‑Schwelle oder im Todesfall automatisch umgewandelt werden können.

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*
Hacker Severin

(Last) (First) (Middle)
C/O DUOLINGO, INC.
5900 PENN AVENUE

(Street)
PITTSBURGH PA 15206

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Duolingo, Inc. [ DUOL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
X Officer (give title below) Other (specify below)
Chief Tech Officer, Co-Founder
3. Date of Earliest Transaction (Month/Day/Year)
08/20/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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 08/20/2025 C 10,000 A $0 10,000 I See footnote(1)
Class A Common Stock 08/20/2025 G 10,000 D $0 0 I See footnote(1)
Class A Common Stock 72 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
Class B Common Stock (2) 08/20/2025 C 10,000 (2) (2) Class A Common Stock 10,000 $0 2,886,917 I See footnote(1)
Explanation of Responses:
1. Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.
2. 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 Severin Hacker 08/22/2025
** 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.

FAQ

What transactions did Severin Hacker report on the Form 4 for DUOL?

He reported converting 10,000 Class B shares into 10,000 Class A shares and gifting 10,000 Class A shares on 08/20/2025.

How many Duolingo shares does Severin Hacker beneficially own after the reported transactions?

He indirectly beneficially owns 2,886,917 shares of Class A common stock through the SBH Trust.

What is the relationship between Severin Hacker and the SBH Trust mentioned in the filing?

The filing states the shares are held by the SBH Trust dated March 10, 2020, of which Severin Hacker is Trustee.

What triggers automatic conversion of Class B shares to Class A according to the Form 4?

Automatic conversion occurs on transfer (except permitted transfers), if Class B falls below 5% of total common stock, or upon the reporting person's death.

Who signed the Form 4 and when was it signed?

The Form 4 was signed by Stephen Chen as Attorney‑in‑Fact for Severin Hacker on 08/22/2025.
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15.53B
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Software - Application
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United States
PITTSBURGH