Derek J Maetzold Castle Biosciences Inc (CSTL) insider trading activity

Derek J Maetzold is Pres. & Chief Exec. Officer of CASTLE BIOSCIENCES INC. Currently has a direct ownership of 95,608 shares of CSTL, which is worth approximately $2.66 Million. The most recent transaction as insider was on May 26, 2021, when has been sold 4,033 shares (Common Stock) at a price of $59.83 per share, resulting in proceeds of $241,294. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 95.6K

65.15% 3M change

16.94% 12M change

Total Value Held $2.66 Million

DEREK J MAETZOLD Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 26 2021	SELL Open market or private sale	$241,294 $59.83 p/Share	4,033 Reduced 0.74%	541,987 Common Stock
May 25 2021	SELL Open market or private sale	$520,240 $60.5 p/Share	8,599 Reduced 1.55%	546,020 Common Stock
May 20 2021	SELL Open market or private sale	$78,611 $60.47 p/Share	1,300 Reduced 0.23%	554,619 Common Stock
May 18 2021	SELL Open market or private sale	$6,009 $60.09 p/Share	100 Reduced 0.02%	555,919 Common Stock
May 13 2021	SELL Open market or private sale	$170,516 $51.16 p/Share	3,333 Reduced 0.6%	556,019 Common Stock
May 12 2021	SELL Open market or private sale	$174,683 $52.41 p/Share	3,333 Reduced 0.59%	559,352 Common Stock
May 11 2021	SELL Open market or private sale	$176,916 $53.08 p/Share	3,333 Reduced 0.59%	562,685 Common Stock
Apr 28 2021	SELL Open market or private sale	$984,475 $68.49 p/Share	14,374 Reduced 2.48%	566,018 Common Stock
Apr 27 2021	SELL Open market or private sale	$1,021,273 $71.05 p/Share	14,374 Reduced 2.42%	580,392 Common Stock
Apr 26 2021	SELL Open market or private sale	$995,112 $69.23 p/Share	14,374 Reduced 2.36%	594,766 Common Stock
Apr 15 2021	SELL Open market or private sale	$988,931 $68.8 p/Share	14,374 Reduced 2.31%	609,140 Common Stock
Apr 14 2021	SELL Open market or private sale	$1,013,080 $70.48 p/Share	14,374 Reduced 2.25%	623,514 Common Stock
Apr 13 2021	SELL Open market or private sale	$978,151 $68.05 p/Share	14,374 Reduced 2.2%	637,888 Common Stock
Mar 30 2021	SELL Open market or private sale	$1,007,040 $59.68 p/Share	16,874 Reduced 2.52%	652,262 Common Stock
Mar 29 2021	SELL Open market or private sale	$768,061 $59.2 p/Share	12,974 Reduced 1.9%	669,136 Common Stock
Mar 26 2021	SELL Open market or private sale	$806,324 $60.74 p/Share	13,275 Reduced 1.91%	682,110 Common Stock
Mar 12 2021	SELL Open market or private sale	$937,538 $65.22 p/Share	14,375 Reduced 2.03%	695,385 Common Stock
Mar 11 2021	SELL Open market or private sale	$974,050 $67.76 p/Share	14,375 Reduced 1.99%	709,760 Common Stock
Mar 10 2021	SELL Open market or private sale	$932,219 $64.85 p/Share	14,375 Reduced 1.95%	724,135 Common Stock
Feb 26 2021	SELL Open market or private sale	$1,067,056 $74.23 p/Share	14,375 Reduced 1.91%	738,510 Common Stock
Feb 25 2021	SELL Open market or private sale	$1,127,144 $78.41 p/Share	14,375 Reduced 1.87%	752,885 Common Stock
Feb 24 2021	SELL Open market or private sale	$1,205,631 $83.87 p/Share	14,375 Reduced 1.84%	767,260 Common Stock
Feb 10 2021	SELL Open market or private sale	$1,406,162 $97.82 p/Share	14,375 Reduced 1.81%	781,635 Common Stock
Feb 09 2021	SELL Open market or private sale	$1,380,719 $96.05 p/Share	14,375 Reduced 1.77%	796,010 Common Stock
Feb 08 2021	SELL Open market or private sale	$1,366,200 $95.04 p/Share	14,375 Reduced 1.74%	810,385 Common Stock

DJM

Derek J Maetzold

Pres. & Chief Exec. Officer

Friendswood, TX

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