Insider · CIK 0001869758
Stephen C. Chen
officer
Files at DUOL (Duolingo, Inc.). First filing Nov 18, 2024, latest Sep 15, 2026.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 6
$0 bought, $5.4M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
DUOL: Duolingo, Inc.
DUOLOct 9, 2026 · close 149.92
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 40Moderate | Duolingo, Inc. | $1.2M 8,072 shares | -16% | - | |
| 20Weak | Duolingo, Inc. | $1.4M 2,635 shares | -7% | +137% from low-2% from high | |
| 35Weak | DUOLsell Duolingo, Inc. | $668k 1,257 shares | -3% | +138% from low-2% from high | |
| 34Weak | Duolingo, Inc. | $898k 2,064 shares | -6% | - | |
| 32Weak | Duolingo, Inc. | $815k 2,642 shares | -8% | - | |
| 46Moderate | Duolingo, Inc. | $386k 1,249 shares | -4% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -2,107 | $147.43 | $311k | 49,734 | 27 d ago |
| Sep 14, 2026 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -5,965 | $150.00 | $895k | 43,769 | 27 d ago |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,268 | $525.07 | $666k | 37,552 | May 19, 2025 |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -300 | $526.44 | $158k | 37,252 | May 19, 2025 |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -300 | $527.61 | $158k | 36,952 | May 19, 2025 |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -467 | $529.25 | $247k | 36,485 | May 19, 2025 |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -100 | $530.22 | $53k | 36,385 | May 19, 2025 |
| May 16, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -200 | $531.44 | $106k | 36,185 | May 19, 2025 |
| May 15, 2025 | DUOL Duolingo, Inc. | AGrant or award Class A Common Stock | +5,443 | $0.00 | $0 | 40,077 | May 16, 2025 |
| May 15, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock | -1,257 | $531.71 | $668k | 38,820 | May 16, 2025 |
| Feb 18, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,166 | $435.00 | $507k | 35,532 | Feb 19, 2025 |
| Feb 18, 2025 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -898 | $435.28 | $391k | 34,634 | Feb 19, 2025 |
| Feb 6, 2025 | DUOL Duolingo, Inc. | MOption exercise Class A Common Stock | +1,331 | $14.42 | $19k | 36,698 | Feb 7, 2025 |
| Feb 6, 2025 | DUOL Duolingo, Inc. | MOption exercise Stock Option (Right to Buy)derivative | -1,331 | $0.00 | $0 | 4,206 | Feb 7, 2025 |
| Dec 19, 2024 | DUOL Duolingo, Inc. | MOption exercise Class A Common Stock | +3,700 | $14.42 | $53k | 35,367 | Dec 20, 2024 |
| Dec 19, 2024 | DUOL Duolingo, Inc. | MOption exercise Stock Option (Right to Buy)derivative | -3,700 | $0.00 | $0 | 5,537 | Dec 20, 2024 |
| Nov 18, 2024 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -275 | $307.04 | $84k | 34,034 | Nov 20, 2024 |
| Nov 18, 2024 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,767 | $307.95 | $544k | 32,267 | Nov 20, 2024 |
| Nov 18, 2024 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -400 | $309.87 | $124k | 31,867 | Nov 20, 2024 |
| Nov 18, 2024 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -200 | $312.19 | $62k | 31,667 | Nov 20, 2024 |
| Nov 15, 2024 | DUOL Duolingo, Inc. | SOpen-market sale Class A Common Stock | -1,249 | $309.30 | $386k | 34,309 | Nov 18, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.