MarketPeel
Insider Trading Intelligence
Pricing
…
MS

Mario Schlosser

DUOL
DIRECTOR · DUOLINGO, INC. · CIK 0001844320
FILING MIX · LIFETIME35%/65%
BUYS
32
SELLS
60
TOTAL VALUE
$86.19M
COMPANIES
2
ACTIVE SINCE
Mar 2021
HOLDINGS NOW
37,815
AVG SELL PX
$21.18
TRADE KIND
SHOWING 92 / 92
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
22 backtested trades · 8 horizons · 28 pending
Forward-return performance of every backtestable P/S trade by Mario Schlosser, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d22+36.36%+4.01%+0.15%+3.86%+3.28%—
14d22+50.00%+3.64%+0.48%+3.15%-1.95%—
30d22+59.09%-7.73%+1.41%-9.13%-13.09%—
60d22+68.18%-6.67%+1.83%-8.49%-13.21%—
90d22+72.73%-4.50%+2.72%-10.25%-15.16%—
180d22(3 pending)+52.63%+24.23%+8.31%+15.49%-20.11%—
1y22(10 pending)+58.33%-2.63%+15.32%-17.96%-22.20%—
2y22(15 pending)+28.57%-1.84%+24.20%-33.38%-67.41%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
DUOL · 4,122 shares · as of Jun 3, 2026
01,0312,0613,0924,12220252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 32 buys / 60 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
OSCR
OSCAR HEALTH, INC.
PURCHASE
50,000——50,000Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
102$30.09$3.1K0Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
16,306$28.95$472.1K33,694Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
660,000——3,740,000Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
50,000——283,333Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
1,799$30.09$54.1K480,866Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
47,500——585,833Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
591,213$29.58$17.49M482,665Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
97$30.09$2.9K0Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
33,591$29.58$993.6K102Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
47,500——47,500Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
31,912$29.58$944.0K97Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
880,000——1,360,866Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
660,000$9.75$6.43M2,092,293Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
286,988$28.95$8.31M1,073,878Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
33,592$29.58$993.7K102Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
15,491$28.95$448.5K32,009Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
880,000——1,212,293Jun 23, 2026Jun 25, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
16,307$28.95$472.1K33,693Jun 23, 2026Jun 25, 2026 ↗View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
2,001——4,122Jun 3, 2026Jun 5, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
9,668$22.45$217.0K480,866Jun 2, 2026Jun 4, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
24,452$21.74$531.6K490,534Jun 2, 2026Jun 4, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASEGRANT
Stock grant
189,141——539,321Mar 2, 2026Mar 4, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
24,335$13.39$325.8K514,986Mar 2, 2026Mar 4, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
23,038$17.65$406.6K350,180Jan 8, 2026Jan 12, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
23,038——1,432,293Jan 8, 2026Jan 12, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
23,038——373,218Jan 8, 2026Jan 12, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
76,962——427,142Jan 6, 2026Jan 8, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
76,962——1,455,331Jan 6, 2026Jan 8, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
76,962$17.01$1.31M350,180Jan 6, 2026Jan 8, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
86,893——447,108Jan 5, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
96,928$15.64$1.52M350,180Jan 5, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
86,893——1,532,293Jan 5, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
59,800——498,148Jan 2, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
137,933$15.02$2.07M360,215Jan 2, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
59,800——1,619,186Jan 2, 2026Jan 6, 2026 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
38,835$15.00$582.5K438,348Dec 24, 2025Dec 30, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
23,965$16.59$397.6K477,183Dec 2, 2025Dec 4, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
105,300——606,448Nov 12, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
105,300$15.05$1.58M501,148Nov 12, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
141,330$6.36$898.9K1,784,286Nov 12, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
105,300——1,678,986Nov 12, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
141,330——0Nov 12, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
413,835——141,330Nov 11, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
286,182$15.27$4.37M501,148Nov 11, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
413,835$6.36$2.63M1,929,138Nov 11, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
286,182——1,642,956Nov 11, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
286,182——787,330Nov 11, 2025Nov 13, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
395,000——896,148Sep 22, 2025Sep 24, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
555,165——555,165Sep 22, 2025Sep 24, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
395,000$18.43$7.28M501,148Sep 22, 2025Sep 24, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
395,000——1,515,303Sep 22, 2025Sep 24, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
555,165$6.36$3.53M1,910,303Sep 22, 2025Sep 24, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
23,879$16.66$397.8K501,148Sep 2, 2025Sep 4, 2025 ↗View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
379——379Jun 11, 2025Jun 20, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
23,879$13.80$329.5K525,027Jun 2, 2025Jun 4, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASEGRANT
Stock grant
172,269——375,966Mar 5, 2025Mar 7, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
7,970$14.61$116.4K203,697Mar 1, 2025Mar 4, 2025 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
117$18.48$2.2K81,962Dec 2, 2024Dec 3, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
6,399$18.07$115.6K82,079Dec 2, 2024Dec 3, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
14,412——88,478Dec 1, 2024Dec 3, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
14,412——129,705Dec 1, 2024Dec 3, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
1,605$17.46$28.0K75,377Sep 4, 2024Sep 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
1,311$17.85$23.4K74,066Sep 4, 2024Sep 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
3,198$17.99$57.5K76,982Sep 3, 2024Sep 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
14,412——80,180Sep 1, 2024Sep 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
14,412——144,117Sep 1, 2024Sep 4, 2024 ↗View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
1,742——1,742Jul 1, 2024Jul 3, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
152$19.09$2.9K65,768Jun 4, 2024Jun 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
5,808$19.46$113.0K65,920Jun 3, 2024Jun 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
14,411——71,728Jun 1, 2024Jun 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
14,411——158,529Jun 1, 2024Jun 4, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASEGRANT
Stock grant
172,940——172,940Mar 10, 2024Mar 12, 2024 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
608,430$1.40$848.8K1,745,543Nov 16, 2023Nov 20, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
390,405——447,722Nov 16, 2023Nov 20, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
608,430——0Nov 16, 2023Nov 20, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE10b5-1
10b5-1 plan
390,405$7.12$2.78M57,317Nov 16, 2023Nov 20, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
390,405——1,355,138Nov 16, 2023Nov 20, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
415,369——0Aug 15, 2023Aug 17, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
415,369$0.47$195.6K1,372,113Aug 15, 2023Aug 17, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
235,000——1,137,113Aug 15, 2023Aug 17, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
President of Technology & CTO
235,000$6.91$1.62M57,317Aug 15, 2023Aug 17, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
President of Technology & CTO
235,000——292,317Aug 15, 2023Aug 17, 2023 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
Chief Executive Officer
57,300$17.53$1.00M57,317Sep 16, 2021Sep 17, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
Chief Executive Officer
17——17Aug 18, 2021Aug 20, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
Chief Executive Officer
17——0Aug 18, 2021Aug 20, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASEGRANT
Stock grant
17——17Mar 5, 2021Mar 5, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASEGRANT
Stock grant
4,229,853——4,229,853Mar 5, 2021Mar 5, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
Chief Executive Officer
219,772——956,744Mar 5, 2021Mar 5, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
Chief Executive Officer
219,772$39.00$8.57M0Mar 5, 2021Mar 5, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
PURCHASE
Chief Executive Officer
219,772——219,772Mar 5, 2021Mar 5, 2021 ↗View →
OSCR
OSCAR HEALTH, INC.
SALE
Chief Executive Officer
146,514$39.00$5.71M0Mar 5, 2021Mar 5, 2021 ↗View →
Other insiders · DUOL
Loading peer insiders…
About this filer
CIK 0001844320
ROLE
Director
PRIMARY
DUOL
COMPANIES
2
ACTIVE SINCE
Mar 2021
MARKETPEEL · /INSIDER/0001844320DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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One short email. Insider buys, congressional trades, and plain-English analysis.

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