Hacker Severin

CIK 00018702721 companyPITTSBURGH, PA

SEC Profile

Transactions

Companies

Filings

CIK

0001870272

Recent Transactions

50 trades

Gift
Duolingo, Inc.$DUOL
Class A Common Stock
2025-12-08−50,000→ 72 total
Conversion
Duolingo, Inc.$DUOL
Class A Common Stock
2025-12-08+50,000→ 50,072 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-12-08−50,000→ 2,836,917 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Stock Option (Right to Buy)
2025-12-03−5,252→ 0 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-12-03$38.08/sh+5,252→ 147,787 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-12-01+60,000→ 174,305 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Performance-Based Restricted Stock Units
2025-12-01−60,000→ 330,000 total
Tax Payment
Duolingo, Inc.$DUOL
Class B Common Stock
2025-12-01$185.45/sh−31,770→ 142,535 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$169.57/sh−1,146→ 8,926 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$170.55/sh−1,000→ 7,926 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$171.50/sh−2,009→ 5,917 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$176.68/sh−280→ 72 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Stock Option (Right to Buy)
2025-11-19−10,000→ 5,252 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-11-19−10,000→ 114,305 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$174.61/sh−3,089→ 787 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$175.46/sh−435→ 352 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-11-19+10,000→ 124,305 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$172.39/sh−1,281→ 4,636 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$173.74/sh−760→ 3,876 total
Conversion
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-19$38.08/sh+10,000→ 10,072 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$259.71/sh−560→ 7,832 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$265.02/sh−760→ 2,944 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$261.14/sh−165→ 7,667 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$258.77/sh−936→ 8,392 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$257.92/sh−744→ 9,328 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-11-04+10,000→ 124,305 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-11-04−10,000→ 114,305 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$266.87/sh−1,145→ 72 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$266.12/sh−1,727→ 1,217 total
Conversion
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$38.08/sh+10,000→ 10,072 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$262.97/sh−560→ 5,329 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$261.94/sh−1,778→ 5,889 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-11-04$264.06/sh−1,625→ 3,704 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Stock Option (Right to Buy)
2025-11-04−10,000→ 15,252 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$317.68/sh−680→ 2,079 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$307.55/sh−600→ 9,372 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$313.93/sh−500→ 5,459 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$318.73/sh−907→ 1,172 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$315.79/sh−1,100→ 4,359 total
Exercise/Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-10-20+60,000→ 146,075 total
Tax Payment
Duolingo, Inc.$DUOL
Class B Common Stock
2025-10-20$312.73/sh−31,770→ 114,305 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$323.09/sh−300→ 172 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$316.64/sh−1,600→ 2,759 total
Conversion
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$38.08/sh+10,000→ 10,072 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$324.10/sh−100→ 72 total
Conversion
Duolingo, Inc.$DUOL
Class B Common Stock
2025-10-20−10,000→ 86,075 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$321.75/sh−400→ 472 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$309.94/sh−632→ 8,240 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$312.37/sh−1,281→ 5,959 total
Sale
Duolingo, Inc.$DUOL
Class A Common Stock
2025-10-20$305.86/sh−100→ 9,972 total

Companies

Duolingo, Inc.
Director, Chief Tech Officer, Co-Founder, 10% Owner
$DUOL

Recent Filings

Address

C/O DUOLINGO, INC. 5900 PENN AVENUE 5900 PENN AVENUE

PITTSBURGH, PA, 15206

View on SEC.gov