Skaruppa Matthew
Officer · DUOL
As of 2026-09-16, Skaruppa Matthew has 67 Form 4 transactions on record across 1 company — 11 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in February in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $4.7M
- Indirect $0
| DUOL | direct | 31,631 sh | $4.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-02-18 | DUOL | Sale | 1,764 @ $114.35 | $202K | −5.2% of holding | 31,991 | Form 4 |
| 2026-02-18 | DUOL | Sale | 1,626 @ $112.26 | $183K | −4.6% of holding | 33,991 | Form 4 |
| 2026-02-18 | DUOL | Sale | 360 @ $115.29 | $42K | −1.1% of holding | 31,631 | Form 4 |
| 2026-02-18 | DUOL | Sale | 236 @ $113.37 | $27K | −0.7% of holding | 33,755 | Form 4 |
| 2026-02-17 | DUOL | Sale | 1,870 @ $110.06 | $206K | −5.0% of holding | 35,617 | Form 4 |
| 2025-11-18 | DUOL | Sale | 880 @ $175.73 | $155K | −2.2% of holding | 38,483 | Form 4 |
| 2025-11-18 | DUOL | Sale | 796 @ $176.91 | $141K | −2.1% of holding | 37,687 | Form 4 |
| 2025-11-18 | DUOL | Sale | 793 @ $175.00 | $139K | −2.0% of holding | 39,363 | Form 4 |
| 2025-11-18 | DUOL | Sale | 390 @ $174.04 | $68K | −1.0% of holding | 40,156 | Form 4 |
| 2025-11-18 | DUOL | Sale | 200 @ $177.65 | $36K | −0.5% of holding | 37,487 | Form 4 |
| 2025-11-17 | DUOL | Sale | 2,799 @ $177.95 | $498K | −6.5% of holding | 40,546 | Form 4 |
| 2025-08-26 | DUOL | Sale | 2,301 @ $316.24 | $728K | −4.5% of holding | 49,024 | Form 4 |
| 2025-08-26 | DUOL | Sale | 1,578 @ $321.33 | $507K | −3.5% of holding | 43,345 | Form 4 |
| 2025-08-26 | DUOL | Sale | 1,501 @ $318.36 | $478K | −3.1% of holding | 46,723 | Form 4 |
| 2025-08-26 | DUOL | Sale | 1,402 @ $315.27 | $442K | −2.7% of holding | 51,325 | Form 4 |
| 2025-08-26 | DUOL | Sale | 1,100 @ $320.50 | $353K | −2.4% of holding | 44,923 | Form 4 |
| 2025-08-26 | DUOL | Sale | 800 @ $317.44 | $254K | −1.6% of holding | 48,224 | Form 4 |
| 2025-08-26 | DUOL | Sale | 755 @ $314.16 | $237K | −1.4% of holding | 52,727 | Form 4 |
| 2025-08-26 | DUOL | Sale | 700 @ $319.33 | $224K | −1.5% of holding | 46,023 | Form 4 |
| 2025-08-26 | DUOL | Sale | 500 @ $311.38 | $156K | −0.9% of holding | 53,782 | Form 4 |
| 2025-08-26 | DUOL | Sale | 300 @ $312.67 | $94K | −0.6% of holding | 53,482 | Form 4 |
| 2025-08-15 | DUOL | Sale | 2,797 @ $329.03 | $920K | −5.0% of holding | 52,904 | Form 4 |
| 2025-05-16 | DUOL | Sale | 900 @ $526.16 | $474K | −1.5% of holding | 60,896 | Form 4 |
| 2025-05-16 | DUOL | Sale | 849 @ $529.45 | $450K | −1.4% of holding | 58,823 | Form 4 |
| 2025-05-16 | DUOL | Sale | 700 @ $527.27 | $369K | −1.1% of holding | 60,196 | Form 4 |
| 2025-05-16 | DUOL | Sale | 524 @ $528.63 | $277K | −0.9% of holding | 59,672 | Form 4 |
| 2025-05-16 | DUOL | Sale | 400 @ $531.42 | $213K | −0.7% of holding | 58,223 | Form 4 |
| 2025-05-16 | DUOL | Sale | 200 @ $530.50 | $106K | −0.3% of holding | 58,623 | Form 4 |
| 2025-05-15 | DUOL | Sale | 3,304 @ $531.71 | $1.8M | −5.1% of holding | 61,796 | Form 4 |
| 2025-02-19 | DUOL | Sale | 1,100 @ $433.15 | $476K | −1.9% of holding | 57,651 | Form 4 |
| 2025-02-19 | DUOL | Sale | 1,000 @ $434.22 | $434K | −1.7% of holding | 56,651 | Form 4 |
| 2025-02-19 | DUOL | Sale | 459 @ $432.38 | $198K | −0.8% of holding | 58,751 | Form 4 |
| 2025-02-19 | DUOL | Sale | 400 @ $430.30 | $172K | −0.7% of holding | 59,582 | Form 4 |
| 2025-02-19 | DUOL | Sale | 372 @ $431.40 | $160K | −0.6% of holding | 59,210 | Form 4 |
| 2025-02-19 | DUOL | Sale | 260 @ $435.42 | $113K | −0.5% of holding | 56,391 | Form 4 |
| 2025-02-18 | DUOL | Sale | 3,284 @ $435.28 | $1.4M | −5.2% of holding | 59,982 | Form 4 |
| 2025-01-13 | DUOL | Sale | 1,200 @ $314.39 | $377K | −1.8% of holding | 64,285 | Form 4 |
| 2025-01-13 | DUOL | Sale | 1,000 @ $313.26 | $313K | −1.5% of holding | 65,485 | Form 4 |
| 2025-01-13 | DUOL | Sale | 919 @ $316.13 | $291K | −1.4% of holding | 63,366 | Form 4 |
| 2025-01-13 | DUOL | Sale | 645 @ $311.77 | $201K | −1.0% of holding | 66,485 | Form 4 |
| 2025-01-13 | DUOL | Sale | 300 @ $310.85 | $93K | −0.4% of holding | 67,130 | Form 4 |
| 2025-01-13 | DUOL | Sale | 200 @ $309.44 | $62K | −0.3% of holding | 67,430 | Form 4 |
| 2025-01-13 | DUOL | Sale | 100 @ $316.59 | $32K | −0.2% of holding | 63,266 | Form 4 |
| 2025-01-13 | DUOL | Sale | 100 @ $307.48 | $31K | −0.1% of holding | 67,630 | Form 4 |
| 2025-01-02 | DUOL | Sale | 2,103 @ $324.90 | $683K | −3.0% of holding | 68,306 | Form 4 |
| 2025-01-02 | DUOL | Sale | 1,276 @ $324.09 | $414K | −1.8% of holding | 70,409 | Form 4 |
| 2025-01-02 | DUOL | Sale | 545 @ $323.05 | $176K | −0.8% of holding | 71,685 | Form 4 |
| 2025-01-02 | DUOL | Sale | 500 @ $321.46 | $161K | −0.7% of holding | 72,230 | Form 4 |
| 2025-01-02 | DUOL | Sale | 400 @ $328.53 | $131K | −0.6% of holding | 67,730 | Form 4 |
| 2025-01-02 | DUOL | Sale | 176 @ $326.22 | $57K | −0.3% of holding | 68,130 | Form 4 |
| 2024-12-16 | DUOL | Sale | 6,191 @ $348.48 | $2.2M | −8.1% of holding | 70,483 | Form 4 |
| 2024-12-16 | DUOL | Sale | 2,253 @ $349.30 | $787K | −3.2% of holding | 68,230 | Form 4 |
| 2024-12-16 | DUOL | Sale | 1,700 @ $347.63 | $591K | −2.2% of holding | 76,674 | Form 4 |
| 2024-12-16 | DUOL | Sale | 1,023 @ $345.30 | $353K | −1.3% of holding | 78,892 | Form 4 |
| 2024-12-16 | DUOL | Sale | 967 @ $344.25 | $333K | −1.2% of holding | 79,915 | Form 4 |
| 2024-12-16 | DUOL | Sale | 598 @ $343.05 | $205K | −0.7% of holding | 80,882 | Form 4 |
| 2024-12-16 | DUOL | Sale | 518 @ $346.32 | $179K | −0.7% of holding | 78,374 | Form 4 |
| 2024-12-16 | DUOL | Sale | 500 @ $350.30 | $175K | −0.7% of holding | 67,730 | Form 4 |
| 2024-12-16 | DUOL | Sale | 300 @ $339.05 | $102K | −0.4% of holding | 81,680 | Form 4 |
| 2024-12-16 | DUOL | Sale | 100 @ $341.30 | $34K | −0.1% of holding | 81,480 | Form 4 |
| 2024-12-16 | DUOL | Sale | 100 @ $340.21 | $34K | −0.1% of holding | 81,580 | Form 4 |
6 award / exercise / gift records — not counted as purchases
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.