Severin Hacker, Chief Technology Officer, Co-Founder at Duolingo, Inc. (DUOL), sold 15,600 shares at $264.75 ($4.2M) on 2025-09-05, disclosed to the SEC on 2025-09-09.
Scheduled sale ($4.2M) by Chief Technology Officer, Co-Founder under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $264.75 | 500 | $132K | 3.2% |
| 2 | $265.95 | 1,148 | $305K | 7.3% |
| 3 | $265.95 | 1,148 | $305K | 7.3% |
| 4 | $266.90 | 849 | $227K | 5.4% |
| 5 | $266.90 | 849 | $227K | 5.4% |
| 6 | $267.93 | 2,100 |
| $563K |
| 13.4% |
| 7 | $268.92 | 1,956 | $526K | 12.6% |
| 8 | $268.92 | 1,956 | $526K | 12.6% |
| 9 | $269.87 | 1,600 | $432K | 10.3% |
| 10 | $271.05 | 1,647 | $446K | 10.7% |
| 11 | $271.05 | 1,647 | $446K | 10.7% |
| 12 | $271.57 | 200 | $54K | 1.3% |
| Total | $268.58 avg | 15,600 | $4.2M | 100% |
| Filing → |
| DUOL | SELL | 2025-10-22 | $4.4M | — | Filing → |
| DUOL | SELL | 2025-10-07 | $5.3M | — | Filing → |
| DUOL | SELL | 2025-09-22 | $3.5M | — | Filing → |