MarketPeel
Insider Trading Intelligence
SC

Stephen C. Chen

DUOL
GENERAL COUNSEL · DUOLINGO, INC. · CIK 0001869758
FILING MIX · LIFETIME20%/80%
BUYS
28
SELLS
113
TOTAL VALUE
$31.59M
COMPANIES
1
ACTIVE SINCE
Aug 2021
HOLDINGS NOW
0
AVG SELL PX
$169.33
TRADE KIND
SHOWING 141 / 141
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
88 backtested trades · 8 horizons · 50 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stephen C. Chen, 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
7d88+73.86%-2.81%-0.82%-2.00%-2.09%-3.22
14d88+64.77%-4.58%-0.41%-4.17%-4.83%-3.68
30d88+62.50%-6.08%+0.48%-6.57%-7.54%-3.37
60d88+63.64%-6.71%+2.06%-8.77%-10.10%-3.71
90d88+59.09%-3.87%+1.37%-5.24%-6.26%-1.61
180d88(5 pending)+63.86%-4.65%+2.51%-7.16%-22.61%-1.44
1y88(12 pending)+53.95%+3.96%+8.53%-4.57%+1.71%-0.70
2y88(33 pending)+18.18%+68.81%+24.77%+44.04%+46.77%4.43
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 · 0 shares · as of Jun 17, 2026
030,62561,25191,876122,50120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 28 buys / 113 sellsCOVERAGE · 20 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DUOL
DUOLINGO, INC.
SALE
General Counsel
580Jun 17, 2026Jun 18, 2026View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
58$14.42$83652,865Jun 17, 2026Jun 18, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
700$114.22$80.0K52,807May 18, 2026May 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,277$113.27$144.6K53,507May 18, 2026May 19, 2026View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
24,411$112.06$2.74M55,604May 15, 2026May 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
820$112.16$92.0K54,784May 15, 2026May 19, 2026View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
648$14.42$9.3K31,193May 12, 2026May 13, 2026View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
64858May 12, 2026May 13, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
80$115.47$9.2K30,545Feb 18, 2026Feb 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
821$111.83$91.8K31,625Feb 18, 2026Feb 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
480$113.95$54.7K31,145Feb 18, 2026Feb 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
520$114.55$59.6K30,625Feb 18, 2026Feb 19, 2026View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
896$110.06$98.6K32,446Feb 17, 2026Feb 19, 2026View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,800706Dec 29, 2025Dec 30, 2025View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
1,800$14.42$26.0K33,342Dec 29, 2025Dec 30, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
120$173.97$20.9K32,936Nov 18, 2025Nov 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
480$177.19$85.0K31,542Nov 18, 2025Nov 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
320$175.94$56.3K32,022Nov 18, 2025Nov 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
594$175.15$104.0K32,342Nov 18, 2025Nov 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,282$177.95$228.1K33,056Nov 17, 2025Nov 19, 2025View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,7002,506Sep 18, 2025Sep 19, 2025View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
1,700$14.42$24.5K34,338Sep 18, 2025Sep 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,515$321.36$486.9K32,638Aug 26, 2025Aug 28, 2025View →
DUOL
DUOLINGO, INC.
SALEGRANT
Gift
75035,435Aug 15, 2025Aug 15, 2025View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,282$329.03$421.8K34,153Aug 15, 2025Aug 18, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
300$526.44$157.9K37,252May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
300$527.61$158.3K36,952May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
200$531.44$106.3K36,185May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
100$530.22$53.0K36,385May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,268$525.07$665.8K37,552May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
467$529.25$247.2K36,485May 16, 2025May 19, 2025View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
5,44340,077May 15, 2025May 16, 2025View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,257$531.71$668.4K38,820May 15, 2025May 16, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,166$435.00$507.2K35,532Feb 18, 2025Feb 19, 2025View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
898$435.28$390.9K34,634Feb 18, 2025Feb 19, 2025View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
1,331$14.42$19.2K36,698Feb 6, 2025Feb 7, 2025View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,3314,206Feb 6, 2025Feb 7, 2025View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
3,7005,537Dec 19, 2024Dec 20, 2024View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
3,700$14.42$53.4K35,367Dec 19, 2024Dec 20, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,767$307.95$544.1K32,267Nov 18, 2024Nov 20, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
400$309.87$123.9K31,867Nov 18, 2024Nov 20, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
275$307.04$84.4K34,034Nov 18, 2024Nov 20, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
200$312.19$62.4K31,667Nov 18, 2024Nov 20, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,249$309.30$386.3K34,309Nov 15, 2024Nov 18, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
5,677$212.69$1.21M39,017Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
3,173$209.54$664.9K50,486Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
3,459$213.42$738.2K35,558Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
7,382$14.42$106.4K55,022Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
2,815$210.62$592.9K47,671Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,363$208.53$284.2K53,659Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
2,977$211.62$630.0K44,694Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
7,3829,237Aug 30, 2024Sep 3, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,249$199.50$249.2K47,640Aug 15, 2024Aug 16, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
6,71516,619Jun 28, 2024Jul 2, 2024View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
6,715$14.42$96.8K48,889Jun 28, 2024Jul 2, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
98833,057May 15, 2024May 16, 2024View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
9,11742,174May 15, 2024May 16, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
98834,045Feb 15, 2024Feb 20, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
2,000$190.00$380.0K35,033Feb 9, 2024Feb 12, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
2,00023,334Feb 9, 2024Feb 12, 2024View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
2,000$14.42$28.8K37,033Feb 9, 2024Feb 12, 2024View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
18,000$14.42$259.6K53,033Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
365$210.29$76.8K35,033Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
3,840$205.98$791.0K43,797Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
5,396$205.20$1.11M47,637Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
1,586$207.19$328.6K42,211Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
2,091$209.01$437.0K35,398Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
4,722$208.17$983.0K37,489Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
18,00025,334Jan 4, 2024Jan 5, 2024View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
988$209.78$207.3K35,033Nov 15, 2023Nov 16, 2023View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
8,742$160.38$1.40M36,121Sep 11, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
100$161.00$16.1K36,021Sep 11, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
8,842$14.42$127.5K44,863Sep 11, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
8,84243,334Sep 11, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
5,325$14.42$76.8K41,346Sep 8, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
5,32552,176Sep 8, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
5,325$160.08$852.4K36,021Sep 8, 2023Sep 11, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
988$132.44$130.9K36,021Aug 15, 2023Aug 17, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
669$140.83$94.2K25,884May 15, 2023May 16, 2023View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
11,12537,009May 15, 2023May 17, 2023View →
DUOL
DUOLINGO, INC.
SALE10b5-1
10b5-1 plan
9,252$130.43$1.21M26,553Mar 21, 2023Mar 22, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
9,25257,501Mar 21, 2023Mar 22, 2023View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
9,252$14.42$133.4K35,805Mar 21, 2023Mar 22, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
10,74866,753Mar 7, 2023Mar 8, 2023View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
10,748$14.42$155.0K37,301Mar 7, 2023Mar 8, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
10,748$130.10$1.40M26,553Mar 7, 2023Mar 8, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
484$96.94$46.9K26,553Feb 15, 2023Feb 17, 2023View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
674$74.31$50.1K27,037Nov 15, 2022Nov 17, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
673$106.37$71.6K27,711Aug 15, 2022Aug 17, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,097$105.39$115.6K28,384Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
25,358$14.42$365.7K53,742Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
10,712$103.42$1.11M35,682Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
25,35877,501Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
7,348$102.57$753.6K46,394Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
6,201$104.50$648.0K29,481Jun 24, 2022Jun 27, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
10,535102,859Jun 21, 2022Jun 22, 2022View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
10,535$14.42$151.9K38,919Jun 21, 2022Jun 22, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
10,535$102.14$1.08M28,384Jun 21, 2022Jun 22, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
100113,394Jun 9, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
100$102.12$10.2K28,384Jun 9, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
100$14.42$1.4K28,484Jun 9, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
4,007$14.42$57.8K32,391Jun 8, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
4,007$102.12$409.2K28,384Jun 8, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
4,007113,494Jun 8, 2022Jun 10, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
75$90.97$6.8K28,384May 16, 2022May 18, 2022View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
19,06528,459May 13, 2022May 17, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
5,000117,501Feb 28, 2022Mar 2, 2022View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
5,000$14.42$72.1K9,394Feb 28, 2022Mar 2, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
97$98.01$9.5K4,394Feb 15, 2022Feb 17, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
20$99.03$2.0K4,413Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
14$96.24$1.3K4,477Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1$100.96$1014,394Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
17$97.75$1.7K4,433Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
27$97.10$2.6K4,450Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
18$99.79$1.8K4,395Feb 15, 2022Feb 24, 2022View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
45$138.04$6.2K4,787Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
903$147.84$133.5K4,991Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
3,339$145.91$487.2K9,424Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
20$141.36$2.8K4,692Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,932$138.10$266.8K20,058Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
38$140.11$5.3K4,712Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
37$139.01$5.1K4,750Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
25$146.85$3.7K4,491Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
3,457$140.33$485.1K15,492Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
544544Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
3,530$146.48$517.1K5,894Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
400$148.72$59.5K4,591Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
500$143.22$71.6K13,363Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
100$150.70$15.1K4,491Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
17,499122,501Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
PURCHASE
General Counsel
17,499$14.42$252.3K21,990Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
5440Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
4,2884,832Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
26$145.34$3.8K4,651Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
9$143.11$1.3K4,677Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,109$139.29$154.5K18,949Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
135$146.21$19.7K4,516Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
600$144.71$86.8K12,763Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
6$141.90$8514,686Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
SALE
General Counsel
1,629$141.27$230.1K13,863Nov 15, 2021Nov 17, 2021View →
DUOL
DUOLINGO, INC.
PURCHASEGRANT
Stock grant
544544Aug 15, 2021Sep 22, 2021View →
Other insiders · DUOL
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About this filer
CIK 0001869758
ROLE
General Counsel
PRIMARY
DUOL
COMPANIES
1
ACTIVE SINCE
Aug 2021
MARKETPEEL · /INSIDER/0001869758DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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