Matthew Skaruppa is CFO at Duolingo, Inc. (DUOL). They have made 31 open-market trades across 1 company since 2021, most recently 2026-02-18.
CIK 0001869669
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 31 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DUOL | 33,991 | $4.8M |
Shares reported on the most recent Form 4, priced at the 2026-02-20 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DUOL | SELL | 2026-02-17 | 2026-02-20 | $112.42 | $658K | -14.4% | -11.2% | -6.1% |
| DUOL | SELL · 10b5-1 | 2025-11-17 | 2025-11-19 | $176.92 | $1.9M | +3.7% | +5.6% | -36.4% |
| DUOL | SELL · 10b5-1 | 2025-08-26 | 2025-08-28 | $317.37 | $5.9M | -10.6% | +2.8% | -41.1% |
| DUOL | SELL | 2025-08-15 | 2025-08-18 | $329.03 | $1.8M | -12.1% | -23.9% | -51.4% |
| DUOL | SELL · 10b5-1 | 2025-05-16 | 2025-05-19 | $528.79 | $2.8M | +0.4% | -7.5% | -28.7% |
| DUOL | SELL | 2025-05-15 | 2025-05-16 | $531.71 | $3.5M | -0.8% | -8.3% | -36.3% |
| DUOL | SELL · 10b5-1 | 2025-02-19 | 2025-02-21 | $432.96 | $2.0M | -25.0% | -15.4% | +32.7% |
| DUOL | SELL | 2025-02-18 | 2025-02-20 | $435.28 | $2.9M | -29.8% | -21.2% | +22.8% |
| DUOL | SELL · 10b5-1 | 2025-01-13 | 2025-01-14 | $313.76 | $1.9M | +3.1% | +35.8% | +3.1% |
| DUOL | SELL · 10b5-1 | 2025-01-02 | 2025-01-03 | $324.47 | $3.0M | -0.7% | +5.9% | -8.8% |
| DUOL | SELL · 10b5-1 | 2024-12-16 | 2024-12-17 | $347.53 | $9.0M | -7.7% | -3.0% | -16.5% |
| DUOL | SELL · 10b5-1 | 2024-12-02 | 2024-12-04 | $346.35 | $4.8M | -4.9% | -7.2% | -19.7% |
| DUOL | SELL · 10b5-1 | 2024-11-18 | 2024-11-20 | $308.78 | $1.4M | +6.8% | +1.2% | +30.5% |
| DUOL | SELL | 2024-11-15 | 2024-11-18 | $309.30 | $2.0M | +14.8% | +9.7% | +45.5% |
| DUOL | SELL · 10b5-1 | 2024-11-01 | 2024-11-05 | $293.35 | $7.5M | -0.9% | +20.3% | +17.6% |
| DUOL | SELL · 10b5-1 | 2024-10-01 | 2024-10-03 | $280.84 | $7.7M | +0.9% | +0.9% | +13.2% |
| DUOL | SELL · 10b5-1 | 2024-09-03 | 2024-09-04 | $207.19 | $5.4M | +14.2% | +38.4% | +76.2% |
| DUOL | SELL · 10b5-1 | 2024-08-21 | 2024-08-22 | $207.27 | $7.3M | -1.7% | +28.4% | +57.3% |
| DUOL | SELL | 2024-08-15 | 2024-08-16 | $199.50 | $655K | +0.5% | +16.0% | +59.9% |
| DUOL | SELL · 10b5-1 | 2024-08-01 | 2024-08-02 | $165.97 | $2.2M | +35.1% | +41.5% | +100.9% |
| DUOL | SELL · 10b5-1 | 2024-07-01 | 2024-07-02 | $198.41 | $3.1M | -1.0% | -15.2% | +45.3% |
| DUOL | SELL · 10b5-1 | 2024-06-03 | 2024-06-05 | $196.63 | $2.5M | +8.8% | -0.8% | +6.0% |
| DUOL | SELL · 10b5-1 | 2024-05-17 | 2024-05-20 | $177.24 | $921K | +7.8% | +12.2% | +16.7% |
| DUOL | SELL · 10b5-1 | 2024-05-01 | 2024-05-03 | $222.80 | $2.7M | -26.8% | -17.2% | -32.1% |
| DUOL | SELL · 10b5-1 | 2024-04-01 | 2024-04-02 | $218.56 | $2.6M | -0.4% | +8.0% | -7.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.