Hacker Severin's Form 4 filing
Duolingo, Inc. (DUOL) · filed Oct 22, 2025
- Accession no.
- 0001628280-25-045963
- Filed
- Oct 22, 2025
- Trade date
- Oct 20, 2025
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 16 non-derivative transactions and 6 derivative transactions. Open-market sales total $3.15M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Hacker SeverinCIK 0001870272 | Director, Officer (Chief Tech Officer, Co-Founder), 10% Owner |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 20, 2025 | Class A Common Stock | CConversionAcquired | +10,000 | $38.08 | +$380,800 | 10,072 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −100 | $305.86 | −$30,586 | 9,972 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −600 | $307.55 | −$184,530 | 9,372 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −500 | $309.06 | −$154,530 | 8,872 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −632 | $309.94 | −$195,882.08 | 8,240 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −1,000 | $311.43 | −$311,430 | 7,240 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −1,281 | $312.37 | −$400,145.97 | 5,959 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −500 | $313.93 | −$156,965 | 5,459 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −1,100 | $315.79 | −$347,369 | 4,359 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −1,600 | $316.64 | −$506,624 | 2,759 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −680 | $317.68 | −$216,022.4 | 2,079 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −907 | $318.73 | −$289,088.11 | 1,172 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −300 | $319.97 | −$95,991 | 872 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −400 | $321.75 | −$128,700 | 472 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −300 | $323.09 | −$96,927 | 172 | Direct | |
| Oct 20, 2025 | Class A Common Stock | SSaleDisposed | −100 | $324.10 | −$32,410 | 72 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Oct 20, 2025 | Class B Common Stock | MOption exerciseDisposed | −10,000 | $0.00 | $0 | 25,252 | Direct | |
| Oct 20, 2025 | Class A Common Stock | CConversionAcquired | +10,000 | $0.00 | $0 | 96,075 | Direct | |
| Oct 20, 2025 | Class A Common Stock | CConversionDisposed | −10,000 | $0.00 | $0 | 86,075 | Direct | |
| Oct 20, 2025 | Class B Common Stock | MOption exerciseDisposed | −60,000 | $0.00 | $0 | 390,000 | Direct | |
| Oct 20, 2025 | Class A Common Stock | MOption exerciseAcquired | +60,000 | $0.00 | $0 | 146,075 | Direct | |
| Oct 20, 2025 | Class A Common Stock | FTax withholdingDisposed | −31,770 | $312.73 | −$9,935,432.1 | 114,305 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.