U.S. Securities & Exchange Commission
SEC Seal
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U.S. Securities and Exchange Commission


Hacker Severin (0001870272)
Mailing Address
C/O DUOLINGO, INC.
5900 PENN AVE.
PITTSBURGH PA 15206
Ownership Reports for Issuers: (Click on issuer name to see other owners for the issuer, or CIK for issuer filings.)

Issuer Filings Transaction Date Type of Owner
Duolingo, Inc. 0001562088 2021-08-15 director, 10 percent owner, officer: Chief Technology Officer,, other: Co-Founder


Items 1 - 80

The information presented below contains only portions of the information presented in the referenced filing or filings.
You should consult the original filing for complete information. Hyperlinks to the forms are provided for your convenience.

Acquistion or Disposition Transaction Date Deemed Execution Date Issuer Form Transaction Type Direct or Indirect Ownership Number of Securities Transacted Number of Securities Owned Line Number Issuer CIK Security Name
D 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 9748.0000 86075.0000 22 0001562088 Class B Common Stock
A 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 9748.0000 95823.0000 21 0001562088 Class B Common Stock
D 2025-03-19   Duolingo, Inc. 4 M-Exempt --D 9748.0000 165252.0000 20 0001562088 Stock Option (Right to Buy)
D 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 252.0000 86075.0000 19 0001562088 Class B Common Stock
A 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 252.0000 86327.0000 18 0001562088 Class B Common Stock
D 2025-03-19   Duolingo, Inc. 4 M-Exempt --D 252.0000 0.0000 17 0001562088 Stock Option (Right to Buy)
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 100.0000 72.0000 16 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 904.0000 172.0000 15 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 900.0000 1076.0000 14 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 1360.0000 1976.0000 13 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 700.0000 3336.0000 12 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 900.0000 4036.0000 11 0001562088 Class A Common Stock
A 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 252.0000 324.0000 1 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 800.0000 4936.0000 10 0001562088 Class A Common Stock
A 2025-03-19   Duolingo, Inc. 4 C-Conversion --D 9748.0000 10072.0000 2 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 1000.0000 5736.0000 9 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 500.0000 9572.0000 3 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 252.0000 9320.0000 4 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 310.0000 9010.0000 5 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 474.0000 8536.0000 6 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 1000.0000 7536.0000 7 0001562088 Class A Common Stock
D 2025-03-19   Duolingo, Inc. 4 S-Sale --D 800.0000 6736.0000 8 0001562088 Class A Common Stock
A 2025-03-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 10072.0000 1 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1100.0000 8972.0000 2 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 500.0000 8472.0000 3 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1200.0000 7272.0000 4 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1500.0000 5772.0000 5 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1900.0000 3872.0000 6 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1800.0000 2072.0000 7 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 1300.0000 772.0000 8 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 600.0000 172.0000 9 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 S-Sale --D 100.0000 72.0000 10 0001562088 Class A Common Stock
D 2025-03-05   Duolingo, Inc. 4 M-Exempt --D 10000.0000 252.0000 11 0001562088 Stock Option (Right to Buy)
A 2025-03-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 96075.0000 12 0001562088 Class B Common Stock
D 2025-03-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 86075.0000 13 0001562088 Class B Common Stock
A 2025-02-19   Duolingo, Inc. 4 C-Conversion --D 10000.0000 10072.0000 1 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 556.0000 9516.0000 2 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 826.0000 8690.0000 3 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 809.0000 7881.0000 4 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 2702.0000 5179.0000 5 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 2307.0000 2872.0000 6 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 1562.0000 1310.0000 7 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 538.0000 772.0000 8 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 400.0000 372.0000 9 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 S-Sale --D 300.0000 72.0000 10 0001562088 Class A Common Stock
D 2025-02-19   Duolingo, Inc. 4 M-Exempt --D 10000.0000 10252.0000 11 0001562088 Stock Option (Right to Buy)
A 2025-02-19   Duolingo, Inc. 4 C-Conversion --D 10000.0000 96075.0000 12 0001562088 Class B Common Stock
D 2025-02-19   Duolingo, Inc. 4 C-Conversion --D 10000.0000 86075.0000 13 0001562088 Class B Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 200.0000 172.0000 11 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 100.0000 72.0000 12 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 M-Exempt --D 10000.0000 20252.0000 13 0001562088 Stock Option (Right to Buy)
A 2025-02-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 96075.0000 14 0001562088 Class B Common Stock
D 2025-02-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 86075.0000 15 0001562088 Class B Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 198.0000 372.0000 10 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 200.0000 570.0000 9 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 100.0000 770.0000 8 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 3453.0000 870.0000 7 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 1109.0000 4323.0000 6 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 1405.0000 5432.0000 5 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 1513.0000 6837.0000 4 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 1422.0000 8350.0000 3 0001562088 Class A Common Stock
D 2025-02-05   Duolingo, Inc. 4 S-Sale --D 300.0000 9772.0000 2 0001562088 Class A Common Stock
A 2025-02-05   Duolingo, Inc. 4 C-Conversion --D 10000.0000 10072.0000 1 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 914.0000 6972.0000 7 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 C-Conversion --D 10000.0000 86075.0000 18 0001562088 Class B Common Stock
A 2025-01-21   Duolingo, Inc. 4 C-Conversion --D 10000.0000 96075.0000 17 0001562088 Class B Common Stock
D 2025-01-21   Duolingo, Inc. 4 M-Exempt --D 10000.0000 30252.0000 16 0001562088 Stock Option (Right to Buy)
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 200.0000 72.0000 15 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 100.0000 272.0000 14 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 300.0000 372.0000 13 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 481.0000 672.0000 12 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 400.0000 8972.0000 4 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 1507.0000 3365.0000 9 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 2100.0000 4872.0000 8 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 300.0000 9772.0000 2 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 400.0000 9372.0000 3 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 874.0000 2491.0000 10 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 1338.0000 1153.0000 11 0001562088 Class A Common Stock
D 2025-01-21   Duolingo, Inc. 4 S-Sale --D 686.0000 7886.0000 6 0001562088 Class A Common Stock
A 2025-01-21   Duolingo, Inc. 4 C-Conversion --D 10000.0000 10072.0000 1 0001562088 Class A Common Stock

http://www.sec.gov/cgi-bin/own-disp


Modified: 04/22/2016