CHEN STEPHEN C.

PrivateCIK: 1869758
Location

PITTSBURGH, PA

CHEN STEPHEN C. (General Counsel) sold 8.4% of their position (2.80K shares) of DUOLINGO, INC. on the open market

Open‑market sale worth $313.9K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 5 sales
InsiderCHEN STEPHEN C.CIK 1869758
IssuerDUOLINGO, INC.CIK 1562088
Officer· General Counsel
Since Jul 2021
-2.80K
Net shares
Net seller
$313.9K
Total sold
5
Open market trades
0B · 5S
5
Total transactions
2.80K disposed
Non-Derivative Transactions5

Class A Common Stock

Direct
S · Sale

Shares

896.00

Price / share

$110.06

Trade value

$98.61K

% of position

2.7%
2/17/2026
33.34K32.45K

Class A Common Stock

Direct
S · Sale

Shares

821.00

Price / share

$111.83

Trade value

$91.81K

% of position

2.5%
2/18/2026
32.45K31.63K

Class A Common Stock

Direct
S · Sale

Shares

480.00

Price / share

$113.95

Trade value

$54.70K

% of position

1.5%
2/18/2026
31.63K31.14K

Class A Common Stock

Direct
S · Sale

Shares

520.00

Price / share

$114.55

Trade value

$59.57K

% of position

1.7%
2/18/2026
31.14K30.63K

Class A Common Stock

Direct
S · Sale

Shares

80.00

Price / share

$115.47

Trade value

$9.24K

% of position

0.3%
2/18/2026
30.63K30.55K
Total

Net shares

2.80K

Net value

-$313.93K

Derivative Transactions0
No derivative transactions reported
CHEN STEPHEN C. — Insider Transaction (Form 4) Filed Feb 20, 2026 | Finecho