Insider Trading History of Cook Joseph C. Iii

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Cook Joseph C. Iii since 2019. This trader's CIK number is 1783205. At the time of last reporting, Cook Joseph C. Iii was the Officer of Castle Biosciences Inc. (stock ticker symbol CSTL). Also see all insider trading activities at Castle Biosciences Inc.

Yearly summary of insider trading at Castle Biosciences Inc (CSTL) by Cook Joseph C. Iii

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2021	CSTL	0	$0	0	$0	12,229	$195,664
2020	CSTL	0	$0	1,011,069	$50,894,167	0	$0
2019	CSTL	334,745	$5,355,920	0	$0	0	$0

Insider trading of Castle Biosciences Inc (CSTL) by Cook Joseph C. Iii

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2021-03-18	CSTL	Option Ex	12,229	16.00	195,664
2020-12-16	CSTL	Sale	169,900	66.52	11,301,238
2020-12-11	CSTL	Sale	24,659	60.82	1,499,661
2020-12-09	CSTL	Sale	32,824	57.36	1,882,686
2020-12-10	CSTL	Sale	45,441	59.20	2,689,970
2020-12-08	CSTL	Sale	44,576	56.17	2,504,012
2020-12-07	CSTL	Sale	2,600	55.84	145,184
2020-10-12	CSTL	Sale	19,676	54.84	1,079,051
2020-10-13	CSTL	Sale	23,849	54.91	1,309,548
2020-10-14	CSTL	Sale	6,475	54.82	354,978
2020-09-09	CSTL	Sale	5,994	50.32	301,636
2020-09-08	CSTL	Sale	69,265	47.76	3,307,957
2020-09-04	CSTL	Sale	61,838	47.22	2,920,237
2020-09-02	CSTL	Sale	7,365	46.01	338,863
2020-09-03	CSTL	Sale	30,200	46.06	1,391,102
2020-08-31	CSTL	Sale	8,228	45.84	377,171
2020-09-01	CSTL	Sale	40,310	46.00	1,854,260
2020-08-27	CSTL	Sale	16,239	45.89	745,207
2020-08-28	CSTL	Sale	55,701	46.12	2,569,097
2020-08-21	CSTL	Sale	6,017	45.85	275,879
2020-08-24	CSTL	Sale	8,877	45.90	407,454
2020-08-19	CSTL	Sale	8,574	45.83	392,946
2020-08-20	CSTL	Sale	8,795	45.98	404,367
2020-07-09	CSTL	Sale	62,990	43.36	2,731,435
2020-06-24	CSTL	Sale	100	43.11	4,311
2020-06-19	CSTL	Sale	27,353	43.53	1,190,648
2020-06-23	CSTL	Sale	25,336	43.07	1,091,297
2020-06-17	CSTL	Sale	12,478	39.12	488,151
2020-06-18	CSTL	Sale	61,466	42.38	2,604,990
2020-06-15	CSTL	Sale	22,195	40.26	893,504
2020-06-16	CSTL	Sale	2,750	39.04	107,360
2020-06-10	CSTL	Sale	2,108	39.00	82,212
2020-06-02	CSTL	Sale	4,362	39.01	170,161
2020-06-01	CSTL	Sale	371	39.06	14,491
2020-05-28	CSTL	Sale	15,520	38.62	599,335
2020-05-21	CSTL	Sale	11,422	37.84	432,151
2020-05-22	CSTL	Sale	11,196	37.73	422,425
2020-05-19	CSTL	Sale	900	37.03	33,327
2020-05-20	CSTL	Sale	10,084	37.10	374,116
2020-05-18	CSTL	Sale	10,200	38.35	391,170
2020-05-15	CSTL	Sale	21,916	36.84	807,275
2020-05-13	CSTL	Sale	1,131	36.08	40,806
2020-05-12	CSTL	Sale	9,788	37.03	362,498
2019-07-29	CSTL	Buy	334,745	16.00	5,355,920

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Cook Joseph C. Iii (Officer of Castle Biosciences Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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