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 $22,536. The most recent transaction as insider was on Sep 19, 2025, when has been sold 10,000 shares (Class A Common Stock) at a price of $288.79 per share, resulting in proceeds of $2,887,900. 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 $22,536

Severin Hacker Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
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
Jun 05 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
May 19 2025	SELL Open market or private sale	$5,242,900 $524.29 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
May 19 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
May 05 2025	SELL Open market or private sale	$4,950,500 $495.05 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
May 05 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Apr 21 2025	SELL Open market or private sale	$3,160,500 $316.05 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Apr 21 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Apr 07 2025	SELL Open market or private sale	$2,919,500 $291.95 p/Share	10,000 Reduced 99.29%	72 Class A Common Stock
Apr 07 2025	BUY Conversion of derivative security	$380,800 $38.08 p/Share	10,000 Added 49.82%	10,072 Class A Common Stock
Mar 19 2025	SELL Open market or private sale	$2,974,600 $297.46 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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