Severin Hacker Duolingo, Inc. (DUOL) insider trading activity

Severin Hacker is Chief Tech Officer, Co-Founder of Duolingo, Inc.. Currently has a direct ownership of 72 shares of DUOL, which is worth approximately $13,325. The most recent transaction as insider was on Dec 08, 2025, when has been sold 50,000 shares (Class A Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 72

0% 3M change

0% 12M change

Total Value Held $13,325

Severin Hacker Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 08 2025	SELL Bona fide gift	-	50,000 Reduced 99.86%	72 Class A Common Stock
Dec 08 2025	BUY Conversion of derivative security	-	50,000 Added 49.96%	50,072 Class A Common Stock
Nov 19 2025	SELL Open market or private sale	$1,730,600 $173.06 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Nov 19 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Nov 04 2025	SELL Open market or private sale	$2,624,500 $262.45 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Nov 04 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Oct 20 2025	SELL Open market or private sale	$3,151,900 $315.19 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock

Oct 20 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Oct 06 2025	SELL Open market or private sale	$3,228,600 $322.86 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Oct 06 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Sep 19 2025	SELL Open market or private sale	$2,887,900 $288.79 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Sep 19 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Sep 05 2025	SELL Open market or private sale	$2,683,700 $268.37 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Sep 05 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Aug 19 2025	SELL Open market or private sale	$3,491,400 $349.14 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Aug 19 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Aug 05 2025	SELL Open market or private sale	$3,467,900 $346.79 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Aug 05 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Jul 21 2025	SELL Open market or private sale	$3,620,700 $362.07 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Jul 21 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Jul 07 2025	SELL Open market or private sale	$3,924,800 $392.48 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Jul 07 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Jun 20 2025	SELL Open market or private sale	$4,725,200 $472.52 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Jun 20 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Jun 05 2025	SELL Open market or private sale	$5,252,600 $525.26 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock

Severin Hacker

Chief Tech Officer, Co-Founder

Pittsburgh, PA

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