Chen Stephen C.

Track

Insider profile

Performance

Overall performance
3.4
Performance over holding periods
3.4
30 days 90 days 120 days
Average return 2% 8.2% 15.1%
Success rate 53% 68% 82%
Transactions
26 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Chen Stephen C.'s trades of Duolingo Inc's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
484.35
Quantity 2,019 +33.8%
Value US$2,102,624
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
231.98
Quantity 60,989 +0.1%
Value US$3,527,222
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
130.69
Quantity 13,676
Value US$59,594
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
129.13
Quantity 1,024 -1.9%
Value US$132,229
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
129.13
Quantity 1,024
Value US$132,230
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
114.22
Quantity 700 -1.3%
Value US$79,955
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
113.27
Quantity 1,277 -2.3%
Value US$144,648
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
112.06
Quantity 1,977
Value US$221,543
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
112.16
Quantity 820 -1.5%
Value US$91,971
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
112.16
Quantity 820
Value US$91,967
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
115.47
Quantity 80 -0.3%
Value US$9,238
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
114.55
Quantity 520 -1.7%
Value US$59,567
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
113.95
Quantity 480 -1.5%
Value US$54,696
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
111.83
Quantity 821 -2.5%
Value US$91,812
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
112.08
Quantity 1,901
Value US$213,064
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
110.06
Quantity 896 -2.7%
Value US$98,614
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
110.06
Quantity 896
Value US$98,614
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
177.19
Quantity 480 -1.5%
Value US$85,049
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
175.94
Quantity 320 -1.0%
Value US$56,300
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
175.15
Quantity 594 -1.8%
Value US$104,040
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
173.97
Quantity 120 -0.4%
Value US$20,876
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
178.27
Quantity 1,514
Value US$269,901
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
177.95
Quantity 1,282 -3.7%
Value US$228,132
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
177.95
Quantity 1,282
Value US$228,135
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
321.36
Quantity 1,515 -4.4%
Value US$486,860
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
321.44
Quantity 1,515
Value US$486,982
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
329.03
Quantity 1,282 -3.6%
Value US$421,816
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
329.03
Quantity 1,282
Value US$421,821
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
531.44
Quantity 200 -0.5%
Value US$106,287
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
530.22
Quantity 100 -0.3%
Value US$53,022
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
529.25
Quantity 467 -1.3%
Value US$247,161
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
527.61
Quantity 300 -0.8%
Value US$158,282
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
526.44
Quantity 300 -0.8%
Value US$157,933
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
525.07
Quantity 1,268 -3.3%
Value US$665,795
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
530.52
Quantity 2,635
Value US$1,397,920
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
531.71
Quantity 1,257 -3.1%
Value US$668,359
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
531.71
Quantity 1,257
Value US$668,354
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
441.39
Quantity 1,828
Value US$806,861
US Duolingo Inc (DUOL)
Transaction date
Sale
Price
435.28
Quantity 898 -2.5%
Value US$390,881
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
435.00
Quantity 1,166 -3.2%
Value US$507,210
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
435.28
Quantity 898
Value US$390,884
US Duolingo Inc (DUOL)
Transaction date
Proposed sale
Price
432.69
Quantity 1,166
Value US$504,517
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
312.19
Quantity 200 -0.6%
Value US$62,438
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
309.87
Quantity 400 -1.2%
Value US$123,947
US Duolingo Inc (DUOL)
Transaction date
Planned sale
Price
307.95
Quantity 1,767 -5.2%
Value US$544,147
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-09-15 2026-09-14
US Duolingo Inc (DUOL)
PlS Planned sale
2,019 +33.8%
484.35
US$2,102,624 		2,019 +33.8% 484.35 US$2,102,624
2026-09-15 2026-09-14
US Duolingo Inc (DUOL)
PlS Planned sale
60,989 +0.1%
231.98
US$3,527,222 		60,989 +0.1% 231.98 US$3,527,222
2026-09-14 2026-09-14
US Duolingo Inc (DUOL)
PrS Proposed sale
13,676
130.69
US$59,594 		13,676 130.69 US$59,594
2026-08-19 2026-08-17
US Duolingo Inc (DUOL)
S Sale
1,024 -1.9%
129.13
US$132,229 		1,024 -1.9% 129.13 US$132,229
2026-08-17 2026-08-17
US Duolingo Inc (DUOL)
PrS Proposed sale
1,024
129.13
US$132,230 		1,024 129.13 US$132,230
2026-05-19 2026-05-18
US Duolingo Inc (DUOL)
PlS Planned sale
700 -1.3%
114.22
US$79,955 		700 -1.3% 114.22 US$79,955
2026-05-19 2026-05-18
US Duolingo Inc (DUOL)
PlS Planned sale
1,277 -2.3%
113.27
US$144,648 		1,277 -2.3% 113.27 US$144,648
2026-05-18 2026-05-18
US Duolingo Inc (DUOL)
PrS Proposed sale
1,977
112.06
US$221,543 		1,977 112.06 US$221,543
2026-05-19 2026-05-15
US Duolingo Inc (DUOL)
S Sale
820 -1.5%
112.16
US$91,971 		820 -1.5% 112.16 US$91,971
2026-05-15 2026-05-15
US Duolingo Inc (DUOL)
PrS Proposed sale
820
112.16
US$91,967 		820 112.16 US$91,967
2026-02-20 2026-02-18
US Duolingo Inc (DUOL)
PlS Planned sale
80 -0.3%
115.47
US$9,238 		80 -0.3% 115.47 US$9,238
2026-02-20 2026-02-18
US Duolingo Inc (DUOL)
PlS Planned sale
520 -1.7%
114.55
US$59,567 		520 -1.7% 114.55 US$59,567
2026-02-20 2026-02-18
US Duolingo Inc (DUOL)
PlS Planned sale
480 -1.5%
113.95
US$54,696 		480 -1.5% 113.95 US$54,696
2026-02-20 2026-02-18
US Duolingo Inc (DUOL)
PlS Planned sale
821 -2.5%
111.83
US$91,812 		821 -2.5% 111.83 US$91,812
2026-02-18 2026-02-18
US Duolingo Inc (DUOL)
PrS Proposed sale
1,901
112.08
US$213,064 		1,901 112.08 US$213,064
2026-02-20 2026-02-17
US Duolingo Inc (DUOL)
S Sale
896 -2.7%
110.06
US$98,614 		896 -2.7% 110.06 US$98,614
2026-02-17 2026-02-17
US Duolingo Inc (DUOL)
PrS Proposed sale
896
110.06
US$98,614 		896 110.06 US$98,614
2025-11-19 2025-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
480 -1.5%
177.19
US$85,049 		480 -1.5% 177.19 US$85,049
2025-11-19 2025-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
320 -1.0%
175.94
US$56,300 		320 -1.0% 175.94 US$56,300
2025-11-19 2025-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
594 -1.8%
175.15
US$104,040 		594 -1.8% 175.15 US$104,040
2025-11-19 2025-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
120 -0.4%
173.97
US$20,876 		120 -0.4% 173.97 US$20,876
2025-11-18 2025-11-18
US Duolingo Inc (DUOL)
PrS Proposed sale
1,514
178.27
US$269,901 		1,514 178.27 US$269,901
2025-11-19 2025-11-17
US Duolingo Inc (DUOL)
S Sale
1,282 -3.7%
177.95
US$228,132 		1,282 -3.7% 177.95 US$228,132
2025-11-17 2025-11-17
US Duolingo Inc (DUOL)
PrS Proposed sale
1,282
177.95
US$228,135 		1,282 177.95 US$228,135
2025-08-28 2025-08-26
US Duolingo Inc (DUOL)
PlS Planned sale
1,515 -4.4%
321.36
US$486,860 		1,515 -4.4% 321.36 US$486,860
2025-08-26 2025-08-26
US Duolingo Inc (DUOL)
PrS Proposed sale
1,515
321.44
US$486,982 		1,515 321.44 US$486,982
2025-08-18 2025-08-15
US Duolingo Inc (DUOL)
S Sale
1,282 -3.6%
329.03
US$421,816 		1,282 -3.6% 329.03 US$421,816
2025-08-15 2025-08-15
US Duolingo Inc (DUOL)
PrS Proposed sale
1,282
329.03
US$421,821 		1,282 329.03 US$421,821
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
200 -0.5%
531.44
US$106,287 		200 -0.5% 531.44 US$106,287
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
100 -0.3%
530.22
US$53,022 		100 -0.3% 530.22 US$53,022
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
467 -1.3%
529.25
US$247,161 		467 -1.3% 529.25 US$247,161
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
300 -0.8%
527.61
US$158,282 		300 -0.8% 527.61 US$158,282
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
300 -0.8%
526.44
US$157,933 		300 -0.8% 526.44 US$157,933
2025-05-19 2025-05-16
US Duolingo Inc (DUOL)
PlS Planned sale
1,268 -3.3%
525.07
US$665,795 		1,268 -3.3% 525.07 US$665,795
2025-05-16 2025-05-16
US Duolingo Inc (DUOL)
PrS Proposed sale
2,635
530.52
US$1,397,920 		2,635 530.52 US$1,397,920
2025-05-16 2025-05-15
US Duolingo Inc (DUOL)
S Sale
1,257 -3.1%
531.71
US$668,359 		1,257 -3.1% 531.71 US$668,359
2025-05-15 2025-05-15
US Duolingo Inc (DUOL)
PrS Proposed sale
1,257
531.71
US$668,354 		1,257 531.71 US$668,354
2025-02-19 2025-02-19
US Duolingo Inc (DUOL)
PrS Proposed sale
1,828
441.39
US$806,861 		1,828 441.39 US$806,861
2025-02-19 2025-02-18
US Duolingo Inc (DUOL)
S Sale
898 -2.5%
435.28
US$390,881 		898 -2.5% 435.28 US$390,881
2025-02-19 2025-02-18
US Duolingo Inc (DUOL)
PlS Planned sale
1,166 -3.2%
435.00
US$507,210 		1,166 -3.2% 435.00 US$507,210
2025-02-18 2025-02-18
US Duolingo Inc (DUOL)
PrS Proposed sale
898
435.28
US$390,884 		898 435.28 US$390,884
2025-02-18 2025-02-18
US Duolingo Inc (DUOL)
PrS Proposed sale
1,166
432.69
US$504,517 		1,166 432.69 US$504,517
2024-11-20 2024-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
200 -0.6%
312.19
US$62,438 		200 -0.6% 312.19 US$62,438
2024-11-20 2024-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
400 -1.2%
309.87
US$123,947 		400 -1.2% 309.87 US$123,947
2024-11-20 2024-11-18
US Duolingo Inc (DUOL)
PlS Planned sale
1,767 -5.2%
307.95
US$544,147 		1,767 -5.2% 307.95 US$544,147