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START FREE TRIAL →Severin Hacker, Chief Tech Officer, Co-Founder, is a corporate insider tracked by InsiderTape across 1 company. The public record shows 57 open-market SEC Form 4 transactions: 0 purchases worth $0 and 57 sales worth $62.8M, reported from Jul 30, 21 to Nov 19, 25. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 19, 25 | DUOLDuolingo, Inc. | SELL | 3.1K | $176.68 | $539K |
| Nov 4, 25 | DUOLDuolingo, Inc. | SELL | 1.8K | $266.87 | $466K |
| Oct 20, 25 | DUOLDuolingo, Inc. | SELL | 1.6K | $323.09 | $507K |
| Oct 6, 25 | DUOLDuolingo, Inc. | SELL | 1.9K | $328.76 | $610K |
| Sep 19, 25 | DUOLDuolingo, Inc. | SELL | 2.3K | $290.78 | $664K |
| Sep 5, 25 | DUOLDuolingo, Inc. | SELL | 2.1K | $271.57 | $563K |
| Aug 19, 25 | DUOLDuolingo, Inc. | SELL | 2.0K | $352.40 | $675K |
| Aug 5, 25 | DUOLDuolingo, Inc. | SELL | 2.2K | $355.06 | $755K |
| Jul 21, 25 | DUOLDuolingo, Inc. | SELL | 2.4K | $367.61 | $869K |
| Jul 7, 25 | DUOLDuolingo, Inc. | SELL | 2.0K | $396.73 | $786K |
| Jun 20, 25 | DUOLDuolingo, Inc. | SELL | 2.2K | $481.35 | $1.0M |
| Jun 5, 25 | DUOLDuolingo, Inc. | SELL | 2.8K | $531.12 | $1.5M |
| May 19, 25 | DUOLDuolingo, Inc. | SELL | 2.0K | $530.64 | $1.1M |
| May 5, 25 | DUOLDuolingo, Inc. | SELL | 1.6K | $502.26 | $813K |
| Apr 21, 25 | DUOLDuolingo, Inc. | SELL | 2.1K | $323.88 | $650K |
| Apr 7, 25 | DUOLDuolingo, Inc. | SELL | 1.3K | $314.80 | $394K |
| Mar 19, 25 | DUOLDuolingo, Inc. | SELL | 1.4K | $304.22 | $410K |
| Mar 5, 25 | DUOLDuolingo, Inc. | SELL | 1.9K | $294.74 | $553K |
| Feb 19, 25 | DUOLDuolingo, Inc. | SELL | 2.7K | $438.98 | $1.2M |
| Feb 5, 25 | DUOLDuolingo, Inc. | SELL | 3.5K | $409.40 | $1.4M |
| Jan 21, 25 | DUOLDuolingo, Inc. | SELL | 2.1K | $347.15 | $700K |
| Jan 6, 25 | DUOLDuolingo, Inc. | SELL | 2.3K | $347.04 | $767K |
| Dec 19, 24 | DUOLDuolingo, Inc. | SELL | 3.4K | $343.86 | $1.1M |
| Dec 13, 24 | DUOLDuolingo, Inc. | SELL | 13.5K | $344.54 | $4.6M |
| Dec 12, 24 | DUOLDuolingo, Inc. | SELL | 13.9K | $344.72 | $4.7M |
| Dec 11, 24 | DUOLDuolingo, Inc. | SELL | 39.3K | $352.72 | $13.5M |
| Aug 1, 24 | DUOLDuolingo, Inc. | SELL | 4.6K | $173.18 | $757K |
| Jul 1, 24 | DUOLDuolingo, Inc. | SELL | 2.9K | $205.19 | $565K |
| Jun 3, 24 | DUOLDuolingo, Inc. | SELL | 1.8K | $200.59 | $348K |
| May 1, 24 | DUOLDuolingo, Inc. | SELL | 2.5K | $231.61 | $549K |
| Apr 1, 24 | DUOLDuolingo, Inc. | SELL | 3.7K | $220.58 | $799K |
| Mar 1, 24 | DUOLDuolingo, Inc. | SELL | 3.0K | $237.20 | $706K |
| Feb 1, 24 | DUOLDuolingo, Inc. | SELL | 2.6K | $181.46 | $475K |
| Jan 2, 24 | DUOLDuolingo, Inc. | SELL | 4.5K | $218.91 | $971K |
| Dec 1, 23 | DUOLDuolingo, Inc. | SELL | 3.1K | $214.83 | $667K |
| Nov 1, 23 | DUOLDuolingo, Inc. | SELL | 3.3K | $148.24 | $483K |
| Oct 2, 23 | DUOLDuolingo, Inc. | SELL | 4.7K | $168.26 | $780K |
| Sep 1, 23 | DUOLDuolingo, Inc. | SELL | 3.8K | $152.36 | $561K |
| May 1, 23 | DUOLDuolingo, Inc. | SELL | 3.8K | $139.25 | $530K |
| Apr 3, 23 | DUOLDuolingo, Inc. | SELL | 6.0K | $143.11 | $851K |
| Mar 1, 23 | DUOLDuolingo, Inc. | SELL | 2.8K | $110.92 | $307K |
| Feb 1, 23 | DUOLDuolingo, Inc. | SELL | 3.4K | $97.94 | $322K |
| Jan 10, 23 | DUOLDuolingo, Inc. | SELL | 7.2K | $75.07 | $541K |
| Jan 9, 23 | DUOLDuolingo, Inc. | SELL | 2.8K | $75.05 | $210K |
| Dec 14, 22 | DUOLDuolingo, Inc. | SELL | 10.0K | $75.50 | $755K |
| Nov 1, 22 | DUOLDuolingo, Inc. | SELL | 7.1K | $83.25 | $580K |
| Oct 3, 22 | DUOLDuolingo, Inc. | SELL | 4.7K | $97.62 | $454K |
| Sep 1, 22 | DUOLDuolingo, Inc. | SELL | 3.4K | $93.46 | $315K |
| Aug 1, 22 | DUOLDuolingo, Inc. | SELL | 4.1K | $95.76 | $386K |
| Jul 1, 22 | DUOLDuolingo, Inc. | SELL | 3.2K | $94.97 | $287K |
| Jun 23, 22 | DUOLDuolingo, Inc. | SELL | 9.0K | $99.62 | $892K |
| Jun 16, 22 | DUOLDuolingo, Inc. | SELL | 8.3K | $92.97 | $761K |
| Jun 9, 22 | DUOLDuolingo, Inc. | SELL | 5.2K | $101.08 | $508K |
| Jun 1, 22 | DUOLDuolingo, Inc. | SELL | 7.3K | $84.12 | $601K |
| Dec 8, 21 | DUOLDuolingo, Inc. | SELL | 36 | $110.01 | $4K |
| Nov 15, 21 | DUOLDuolingo, Inc. | SELL | 7.5K | $151.01 | $1.1M |
| Jul 30, 21 | DUOLDuolingo, Inc. | SELL | 50.0K | $102.00 | $5.1M |