Severin Hacker, Chief Technology Officer, Co-Founder at Duolingo, Inc. (DUOL), sold 18,100 shares at $340.28 ($6.2M) on 2025-08-05, disclosed to the SEC on 2025-08-07.
Scheduled sale ($6.2M) 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 | $339.32 | 403 | $137K | 2.2% |
| 2 | $339.32 | 403 | $137K | 2.2% |
| 3 | $340.28 | 2,098 | $714K | 11.5% |
| 4 | $340.28 | 2,098 | $714K | 11.5% |
| 5 | $341.55 | 1,330 | $454K | 7.3% |
| 6 | $341.55 | 1,330 |
| $454K |
| 7.3% |
| 7 | $342.56 | 2,205 | $755K | 12.1% |
| 8 | $342.56 | 2,205 | $755K | 12.1% |
| 9 | $343.43 | 600 | $206K | 3.3% |
| 10 | $344.99 | 1,133 | $391K | 6.3% |
| 11 | $344.99 | 1,133 | $391K | 6.3% |
| 12 | $346.73 | 200 | $69K | 1.1% |
| 13 | $349.25 | 300 | $105K | 1.7% |
| 14 | $351.08 | 200 | $70K | 1.1% |
| 15 | $352.75 | 200 | $71K | 1.1% |
| 16 | $354.45 | 931 | $330K | 5.3% |
| 17 | $354.45 | 931 | $330K | 5.3% |
| 18 | $355.06 | 400 | $142K | 2.3% |
| Total | $343.93 avg | 18,100 | $6.2M | 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 → |