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 |
|---|---|---|---|---|---|---|
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 907 | $318.73 | $289,084.66 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.xml · nonDerivative · entry 12 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 1,172 F1 · shares: 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 $318.38 to $319.26, 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 | 680 | $317.68 | $216,024.98 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 2,079 F1 · shares: 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 $317.22 to $318.20, 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 |
| October 20, 2025 Filed Oct 23, 2025 00:16 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,600 | $316.64 | $506,616.96 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 2,759 F1 · shares: 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 $316.22 to $317.19, 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 | 1,100 | $315.79 | $347,365.37 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 4,359 F1 · shares: 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 $315.18 to $316.17, 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 | 500 | $313.93 | $156,966.90 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 5,459 F1 · shares: 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 $313.65 to $314.30, 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 | 1,281 | $312.37 | $400,152.12 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 5,959 F1 · shares: 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 $311.94 to $312.65, 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 | 1,000 | $311.43 | $311,428.20 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 7,240 F1 · shares: 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 $310.86 to $311.81, 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 | 632 | $309.94 | $195,881.76 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 8,240 F1 · shares: 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 $309.71 to $310.18, 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 | 500 | $309.06 | $154,532.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 8,872 F1 · shares: 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 $308.61 to $309.24, 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 | 600 | $307.55 | $184,531.98 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 9,372 F1 · shares: 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 $307.18 to $307.89, 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 | 100 | $305.86 | $30,586.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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: 9,972 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 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001628280-25-045963 · wk-form4_1761178598.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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.xml · derivative · entry 15 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. F14 · 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. F14 · 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. F14 · 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 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. F14 · 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. F14 · 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. F14 · 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 35,252 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. F13 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| October 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 200 | $328.76 | $65,751.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.xml · nonDerivative · entry 12 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. 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 $328.32 to $329.19, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,300 | $327.44 | $425,675.38 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 272 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 $327.02 to $327.92, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 600 | $326.50 | $195,897.24 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 1,572 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 $326.01 to $326.94, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 500 | $325.22 | $162,612.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 2,172 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 $324.78 to $325.62, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 300 | $324.10 | $97,231.41 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 2,672 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 $323.61 to $324.49, 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 |
| October 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 109 | $322.62 | $35,166.01 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 2,972 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 $322.00 to $322.68, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,173 | $321.39 | $376,991.17 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 3,081 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 $321.00 to $321.78, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,803 | $320.33 | $577,560.40 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 4,254 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 $319.98 to $320.95, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,599 | $319.56 | $510,971.64 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 6,057 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 $318.97 to $319.96, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,916 | $318.26 | $609,793.82 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 7,656 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 $317.87 to $318.84, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 500 | $317.31 | $158,653.25 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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: 9,572 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 $316.79 to $317.72, 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 06, 2025 Filed Oct 7, 2025 20:13 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001628280-25-044485 · wk-form4_1759867999.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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.xml · derivative · entry 9 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. F8 · 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. F8 · 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. F8 · 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.xml · derivative · entry 8 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. F8 · 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. F8 · 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. F8 · 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.xml · derivative · entry 7 Hacker Severin · CIK 0001870272 · Director · Chief Tech Officer, Co-Founder · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 45,252 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. F7 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable. Read SEC document |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 2,200 | $290.78 | $639,725.90 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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: 72 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 $290.43 to $291.15, 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,900 | $289.79 | $550,600.43 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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: 2,272 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 $289.32 to $290.30, 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 2,300 | $288.81 | $664,268.06 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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: 4,172 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 $288.28 to $289.27, 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 2,300 | $287.81 | $661,973.58 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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: 6,472 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 $287.27 to $288.23, 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,300 | $286.77 | $372,805.16 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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: 8,772 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 $286.26 to $287.25, 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 |
| September 19, 2025 Filed Sep 22, 2025 20:17 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001628280-25-042323 · wk-form4_1758572251.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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 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. 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 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. 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | Exercise / conversionStock Option (Right to Buy) · Derivative | 10,000 | $0.00 Strike: $38.08 | $0.00 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 55,252 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 200 | $271.57 | $54,314.34 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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 $271.54 to $271.63, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,647 | $271.05 | $446,412.27 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 272 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 $270.52 to $271.47, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,600 | $269.87 | $431,798.72 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 1,919 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 $269.44 to $270.36, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,956 | $268.92 | $526,001.07 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 3,519 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 $268.40 to $269.38, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 2,100 | $267.93 | $562,656.15 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 5,475 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 $267.39 to $268.37, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 849 | $266.90 | $226,594.02 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 7,575 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 $266.39 to $267.26, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 1,148 | $265.95 | $305,311.98 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 8,424 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 $265.39 to $266.35, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | SaleClass A Common Stock | 500 | $264.75 | $132,373.20 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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: 9,572 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 $264.18 to $265.08, 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 |
| September 05, 2025 Filed Sep 9, 2025 12:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass A Common Stock | 10,000 | $38.08 | $380,800.00 |
DisclosureSEC source: 0001562088-25-000201 · wk-form4_1757419751.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 |
| August 20, 2025 Filed Aug 22, 2025 21:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001562088-25-000191 · wk-form4_1755896966.xml · derivative · entry 4 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: 2,886,917 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. F2 · 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. F2 · 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. F2 · 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. F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee. Read SEC document |
| August 20, 2025 Filed Aug 22, 2025 21:09 UTC | Duolingo, Inc. DUOL · Entity 3679 | GiftClass A Common Stock | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001562088-25-000191 · wk-form4_1755896966.xml · nonDerivative · entry 2 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: 0 F1 · ownership.nature: Shares held by SBH Trust dated March 10, 2020, of which Reporting Person is Trustee. 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.