Insider · CIK 0001869758

Chen Stephen C.

Reports to the SEC for 1 company · PITTSBURGH, PA

sec.gov

Transactions

Companies

Filings

CIK

0001869758

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-14	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−5,965 sh	$150.00	−$895K	43,769
2026-09-14	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−2,107 sh	$147.43	−$311K	49,734
2026-08-17	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,024 sh	$129.13	−$132K	51,841
2026-06-17	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−58 sh	—	—	0
2026-06-17	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+58 sh	$14.42	+$836.36	52,865
2026-05-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,277 sh	$113.27	−$145K	53,507
2026-05-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−700 sh	$114.22	−$80K	52,807
2026-05-15	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−820 sh	$112.16	−$92K	54,784
2026-05-15	DUOLDuolingo, Inc.A Award	General Counsel	AAward	+24.4K sh	$112.06	+$2.74M	55,604
2026-05-12	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−648 sh	—	—	58
2026-05-12	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+648 sh	$14.42	+$9,344.16	31,193
2026-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−520 sh	$114.55	−$59.6K	30,625
2026-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−821 sh	$111.83	−$91.8K	31,625
2026-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−480 sh	$113.95	−$54.7K	31,145
2026-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−80 sh	$115.47	−$9,237.6	30,545
2026-02-17	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−896 sh	$110.06	−$98.6K	32,446
2025-12-29	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+1,800 sh	$14.42	+$26K	33,342
2025-12-29	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−1,800 sh	—	—	706
2025-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−120 sh	$173.97	−$20.9K	32,936
2025-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−594 sh	$175.15	−$104K	32,342
2025-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−320 sh	$175.94	−$56.3K	32,022
2025-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−480 sh	$177.19	−$85K	31,542
2025-11-17	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,282 sh	$177.95	−$228K	33,056
2025-09-18	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+1,700 sh	$14.42	+$24.5K	34,338
2025-09-18	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−1,700 sh	—	—	2,506
2025-08-26	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,515 sh	$321.36	−$487K	32,638
2025-08-15	DUOLDuolingo, Inc.G Gift	General Counsel	GGift	−750 sh	—	—	35,435
2025-08-15	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,282 sh	$329.03	−$422K	34,153
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−467 sh	$529.25	−$247K	36,485
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−200 sh	$531.43	−$106K	36,185
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,268 sh	$525.07	−$666K	37,552
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−300 sh	$526.44	−$158K	37,252
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−300 sh	$527.61	−$158K	36,952
2025-05-16	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−100 sh	$530.22	−$53K	36,385
2025-05-15	DUOLDuolingo, Inc.A Award	General Counsel	AAward	+5,443 sh	—	—	40,077
2025-05-15	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,257 sh	$531.71	−$668K	38,820
2025-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,166 sh	$435.00	−$507K	35,532
2025-02-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−898 sh	$435.28	−$391K	34,634
2025-02-06	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−1,331 sh	—	—	4,206
2025-02-06	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+1,331 sh	$14.42	+$19.2K	36,698
2024-12-19	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−3,700 sh	—	—	5,537
2024-12-19	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+3,700 sh	$14.42	+$53.4K	35,367
2024-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−200 sh	$312.19	−$62.4K	31,667
2024-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−400 sh	$309.87	−$124K	31,867
2024-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,767 sh	$307.95	−$544K	32,267
2024-11-18	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−275 sh	$307.04	−$84.4K	34,034
2024-11-15	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−1,249 sh	$309.30	−$386K	34,309
2024-08-30	DUOLDuolingo, Inc.M Exercise/Conversion	General Counsel	MExercise/Conversion	+7,382 sh	$14.42	+$106K	55,022
2024-08-30	DUOLDuolingo, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	General Counsel	MExercise/Conversion	−7,382 sh	—	—	9,237
2024-08-30	DUOLDuolingo, Inc.S Sale	General Counsel	SSale	−3,459 sh	$213.42	−$738K	35,558

Recent filings

Accepted (ET)
Sep 154
Chen Stephen C.0001628280-26-062115
SEC(opens sec.gov)
Aug 194
Chen Stephen C.0001628280-26-058019
SEC(opens sec.gov)
Jun 184
Chen Stephen C.0001628280-26-044413
SEC(opens sec.gov)
May 194
Chen Stephen C.0001628280-26-036519
SEC(opens sec.gov)
May 134
Chen Stephen C.0001628280-26-034631
SEC(opens sec.gov)
Feb 204
Chen Stephen C.0001628280-26-009985
SEC(opens sec.gov)
Dec 304
Chen Stephen C.0001628280-25-059129
SEC(opens sec.gov)
Nov 194
Chen Stephen C.0001628280-25-053186
SEC(opens sec.gov)

Companies

Duolingo, Inc.General CounselDUOL

Address

C/O DUOLINGO, INC. 5900 PENN AVENUE

PITTSBURGH, PA, 15206