Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Duolingo, Inc.DUOL · Entity 3679 | Director · Chief Tech Officer, Co-Founder · 10% owner | May 27, 2026 | May 29, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Duolingo, Inc.
Report date May 27, 2026 · Filed May 29, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Performance-Based Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2031-06-21 | Direct | 210,000 |
Reported balance
After 2026-05-27 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-05-27 · Exercise / conversion · Disposed 60,000 · Balance 210,000 F1: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2: 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. |
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 237,193 |
Reported balance
After 2026-05-27 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-05-27 · Exercise / conversion · Acquired 60,000 · Balance 237,193 F3: 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. |
| Class B Common StockSEC Table II · derivative / convertible security | Direct | 205,273 |
Reported balance
After 2026-05-27 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2026-05-27 · Tax withholding · Disposed 31,920 · Balance 205,273 F3: 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. |
| Class A Common StockSEC Table I · non-derivative | Direct | 72 |
Reported balance
Holding disclosure · report date 2026-05-27 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 72 |
| Class B Common StockSEC Table II · derivative / convertible security | IndirectSee footnote | 2,836,917 |
Reported balance
Holding disclosure · report date 2026-05-27 · row 5
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 5 · Balance 2,836,917 F3: 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. F4: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee. |
Filing footnotes · ownership attribution and instrument terms
F1: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability.
F2: 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.
F3: 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.
F4: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 27, 2026 Filed May 29, 2026 20:08 UTC | Duolingo, Inc. DUOL · Entity 3679 | Tax withholdingClass B Common Stock · Derivative | 31,920 | $107.82 | $3,441,614.40 |
DisclosureSEC source: 0001628280-26-039164 · wk-form4_1780085281.xml · derivative · entry 4 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 205,273 Underlying: Class A Common Stock · 31,920 shares Expires not disclosed F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| May 27, 2026 Filed May 29, 2026 20:08 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionClass B Common Stock · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-039164 · wk-form4_1780085281.xml · derivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 237,193 Underlying: Class A Common Stock · 60,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| May 27, 2026 Filed May 29, 2026 20:08 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionPerformance-Based Restricted Stock Units · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-039164 · wk-form4_1780085281.xml · derivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 210,000 Underlying: Class B Common Stock · 60,000 shares Expires 2031-06-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_date: 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. Read SEC document |
| February 17, 2026 Filed Feb 20, 2026 11:01 UTC | Duolingo, Inc. DUOL · Entity 3679 | Tax withholdingClass B Common Stock · Derivative | 30,594 | $112.57 | $3,443,966.58 |
DisclosureSEC source: 0001628280-26-009983 · wk-form4_1771585283.xml · derivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 177,193 Underlying: Class A Common Stock · 30,594 shares Expires not disclosed F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| February 17, 2026 Filed Feb 20, 2026 11:01 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionClass B Common Stock · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-009983 · wk-form4_1771585283.xml · derivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 207,787 Underlying: Class A Common Stock · 60,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| February 17, 2026 Filed Feb 20, 2026 11:01 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionPerformance-Based Restricted Stock Units · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-009983 · wk-form4_1771585283.xml · derivative · entry 1 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 270,000 Underlying: Class B Common Stock · 60,000 shares Expires 2031-06-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_date: 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. Read SEC document |
| December 08, 2025 Filed Dec 9, 2025 23:41 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 50,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-056204 · wk-form4_1765323676.xml · derivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 2,836,917 Underlying: Class A Common Stock · 50,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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. F1 · derivative.expiration_date: 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. F2 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee. Read SEC document |
| December 08, 2025 Filed Dec 9, 2025 23:41 UTC | Duolingo, Inc. DUOL · Entity 3679 | GiftClass A Common Stock | 50,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-056204 · wk-form4_1765323676.xml · nonDerivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 72 Read SEC document |
| December 08, 2025 Filed Dec 9, 2025 23:41 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 50,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-056204 · wk-form4_1765323676.xml · nonDerivative · entry 1 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,072 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 03, 2025 Filed Dec 4, 2025 00:34 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionClass B Common Stock · Derivative | 5,252 | $38.08 | $199,996.16 |
DisclosureSEC source: 0001628280-25-055183 · wk-form4_1764808482.xml · derivative · entry 6 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 147,787 Underlying: Class A Common Stock · 5,252 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| December 03, 2025 Filed Dec 4, 2025 00:34 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 5,252 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-055183 · wk-form4_1764808482.xml · derivative · entry 5 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Class B Common Stock · 5,252 shares Expires 2030-12-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| December 01, 2025 Filed Dec 4, 2025 00:34 UTC | Duolingo, Inc. DUOL · Entity 3679 | Tax withholdingClass B Common Stock · Derivative | 31,770 | $185.45 | $5,891,746.50 |
DisclosureSEC source: 0001628280-25-055183 · wk-form4_1764808482.xml · derivative · entry 4 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 142,535 Underlying: Class A Common Stock · 31,770 shares Expires not disclosed F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| December 01, 2025 Filed Dec 4, 2025 00:34 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionClass B Common Stock · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-055183 · wk-form4_1764808482.xml · derivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 174,305 Underlying: Class A Common Stock · 60,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| December 01, 2025 Filed Dec 4, 2025 00:34 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionPerformance-Based Restricted Stock Units · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-055183 · wk-form4_1764808482.xml · derivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 330,000 Underlying: Class B Common Stock · 60,000 shares Expires 2031-06-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_price: 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. F1 · derivative.exercise_date: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F2 · derivative.exercise_date: 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. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · derivative · entry 12 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 114,305 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F11 · derivative.exercise_price: 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. F11 · derivative.exercise_date: 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. F11 · derivative.expiration_date: 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. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · derivative · entry 11 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 124,305 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F11 · derivative.exercise_price: 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. F11 · derivative.exercise_date: 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. F11 · derivative.expiration_date: 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. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · derivative · entry 10 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 5,252 Underlying: Class B Common Stock · 10,000 shares Expires 2030-12-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F10 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 280 | $176.68 | $49,470.79 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 9 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 72 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F9 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $176.37 to $176.90, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 435 | $175.46 | $76,323.62 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 8 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 352 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F8 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $175.14 to $176.11, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 3,089 | $174.61 | $539,362.26 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 7 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 787 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $174.14 to $175.13, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 760 | $173.74 | $132,045.82 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 6 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 3,876 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $173.12 to $174.11, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,281 | $172.39 | $220,831.21 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 5 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 4,636 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $172.01 to $172.90, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 2,009 | $171.50 | $344,534.46 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 4 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 5,917 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $171.00 to $171.97, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,000 | $170.55 | $170,548.80 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,926 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $169.99 to $170.98, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,146 | $169.57 | $194,324.13 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 8,926 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $168.98 to $169.90, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 19, 2025 Filed Nov 20, 2025 22:38 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001628280-25-053427 · wk-form4_1763678302.xml · nonDerivative · entry 1 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,072 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · derivative · entry 14 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 114,305 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F13 · derivative.exercise_price: 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. F13 · derivative.exercise_date: 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. F13 · derivative.expiration_date: 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. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · derivative · entry 13 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 124,305 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F13 · derivative.exercise_price: 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. F13 · derivative.exercise_date: 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. F13 · derivative.expiration_date: 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. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · derivative · entry 12 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 15,252 Underlying: Class B Common Stock · 10,000 shares Expires 2030-12-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F12 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,145 | $266.87 | $305,563.75 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 11 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 72 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F11 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $266.51 to $267.38, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,727 | $266.12 | $459,594.08 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 10 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 1,217 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F10 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $265.51 to $266.50, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 760 | $265.02 | $201,412.46 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 9 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 2,944 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F9 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $264.50 to $265.49, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,625 | $264.06 | $429,098.48 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 8 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 3,704 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F8 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $263.50 to $264.44, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 560 | $262.97 | $147,264.54 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 7 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 5,329 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F7 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $262.49 to $263.42, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,778 | $261.94 | $465,736.43 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 6 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 5,889 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F6 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $261.49 to $262.35, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 165 | $261.14 | $43,087.84 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 5 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,667 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F5 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $260.46 to $261.44, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 560 | $259.71 | $145,436.48 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 4 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 7,832 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F4 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $259.29 to $260.05, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 936 | $258.77 | $242,212.65 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 3 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 8,392 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F3 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $258.23 to $259.22, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 744 | $257.92 | $191,892.48 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 2 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 9,328 F1 · kind: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F2 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $257.23 to $258.20, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| November 04, 2025 Filed Nov 6, 2025 21:19 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001628280-25-050203 · wk-form4_1762463833.xml · nonDerivative · entry 1 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,072 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | Tax withholdingClass B Common Stock · Derivative | 31,770 | $312.73 | $9,935,432.10 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 22 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 114,305 Underlying: Class A Common Stock · 31,770 shares Expires not disclosed F16 · derivative.exercise_price: 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. F16 · derivative.exercise_date: 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. F16 · derivative.expiration_date: 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. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionClass B Common Stock · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 21 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 146,075 Underlying: Class A Common Stock · 60,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F16 · derivative.exercise_price: 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. F16 · derivative.exercise_date: 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. F16 · derivative.expiration_date: 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. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionPerformance-Based Restricted Stock Units · Derivative | 60,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 20 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 390,000 Underlying: Class B Common Stock · 60,000 shares Expires 2031-06-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F17 · derivative.exercise_price: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F18 · derivative.exercise_price: 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. F17 · derivative.exercise_date: 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 CTO to the Issuer through the applicable vesting dates, subject to acceleration upon a cessation of service as CTO as a result of death or permanent disability. F18 · derivative.exercise_date: 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. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 19 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 86,075 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F16 · derivative.exercise_price: 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. F16 · derivative.exercise_date: 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. F16 · derivative.expiration_date: 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. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 18 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 96,075 Underlying: Class A Common Stock · 10,000 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F16 · derivative.exercise_price: 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. F16 · derivative.exercise_date: 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. F16 · derivative.expiration_date: 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. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · derivative · entry 17 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 25,252 Underlying: Class B Common Stock · 10,000 shares Expires 2030-12-02 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F15 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 100 | $324.10 | $32,410.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · nonDerivative · entry 16 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 72 F1 · shares: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 300 | $323.09 | $96,927.39 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · nonDerivative · entry 15 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 172 F1 · shares: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F14 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $322.98 to $323.25, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 400 | $321.75 | $128,699.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · nonDerivative · entry 14 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 472 F1 · shares: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F13 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $321.32 to $322.19, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 300 | $319.97 | $95,991.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · nonDerivative · entry 13 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 872 F1 · shares: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 11, 2024. F12 · price: The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $319.85 to $320.21, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.