Severin Hacker, Chief Technology Officer, Co-Founder at Duolingo, Inc. (DUOL), sold 14,100 shares at $312.37 ($4.4M) on 2025-10-20, disclosed to the SEC on 2025-10-22.
Scheduled sale ($4.4M) 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 | $305.86 | 100 | $31K | 0.7% |
| 2 | $307.55 | 600 | $185K | 4.2% |
| 3 | $309.06 | 500 | $155K | 3.5% |
| 4 | $309.94 | 632 | $196K | 4.4% |
| 5 | $309.94 | 632 | $196K | 4.4% |
| 6 | $311.43 | 1,000 |
| $311K |
| 7.0% |
| 7 | $312.37 | 1,281 | $400K | 9.0% |
| 8 | $312.37 | 1,281 | $400K | 9.0% |
| 9 | $313.93 | 500 | $157K | 3.5% |
| 10 | $315.79 | 1,100 | $347K | 7.8% |
| 11 | $316.64 | 1,600 | $507K | 11.4% |
| 12 | $317.68 | 680 | $216K | 4.9% |
| 13 | $317.68 | 680 | $216K | 4.9% |
| 14 | $318.73 | 907 | $289K | 6.5% |
| 15 | $318.73 | 907 | $289K | 6.5% |
| 16 | $319.97 | 300 | $96K | 2.2% |
| 17 | $319.97 | 300 | $96K | 2.2% |
| 18 | $321.75 | 400 | $129K | 2.9% |
| 19 | $323.09 | 300 | $97K | 2.2% |
| 20 | $323.09 | 300 | $97K | 2.2% |
| 21 | $324.10 | 100 | $32K | 0.7% |
| Total | $314.98 avg | 14,100 | $4.4M | 100% |
| Filing → |
| DUOL | SELL | 2025-10-07 | $5.3M | — | Filing → |
| DUOL | SELL | 2025-09-22 | $3.5M | — | Filing → |
| DUOL | SELL | 2025-09-09 | $4.2M | — | Filing → |