Insider Buying and Selling - CSTL

Transaction	Filed	Name	Type	Shares @ Price	Value	Balance change		Ownership
01/20/2026 10b5-1	01/22/2026	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-4,017 @ $40.01	($160,732.22)	87,715	(-4.38%)	Direct
01/06/2026 10b5-1	01/07/2026	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $40.10	($53,688.54)	29,513	(-4.34%)	Direct
01/05/2026 10b5-1	01/07/2026	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-2,678 @ $38.09	($102,005.02)	30,852	(-7.99%)	Direct
12/22/2025 10b5-1	12/29/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-830 @ $40.35	($33,490.50)	33,530	(-2.42%)	Direct
12/17/2025 10b5-1	12/19/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-509 @ $40.04	($20,380.36)	34,360	(-1.46%)	Direct
12/17/2025	12/19/2025	Oelschlager Kristen M Chief Operating Officer Officer	Sell	-14,888 @ $39.31	($585,291.94)	12,323	(-54.71%)	Direct
12/16/2025 10b5-1	12/17/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-12,821 @ $38.55	($494,300.83)	34,869	(-26.88%)	Direct
12/15/2025 10b5-1	12/17/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-19,525 @ $38.78	($757,098.86)	47,690	(-29.05%)	Direct
12/11/2025	12/15/2025	Juvenal Tobin W Chief Commercial Officer Officer	Sell	-13,200 @ $37.48	($494,736.00)	86,825	(-13.20%)	Direct
12/11/2025	12/15/2025	Stokes Frank Chief Financial Officer CFO	Sell	-4,496 @ $37.45	($168,375.20)	50,326	(-8.20%)	Direct
12/04/2025 10b5-1	12/08/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $40.03	($53,600.17)	37,547	(-3.44%)	Direct
12/02/2025 10b5-1	12/04/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-2,678 @ $39.23	($105,057.94)	38,886	(-6.44%)	Direct
11/26/2025 10b5-1	12/01/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-4,258 @ $40.09	($170,703.22)	41,564	(-9.29%)	Direct
11/25/2025 10b5-1	11/26/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-5,115 @ $40.05	($204,850.64)	45,822	(-10.04%)	Direct
11/18/2025 10b5-1	11/20/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-2,678 @ $34.02	($91,105.56)	50,937	(-4.99%)	Direct
11/11/2025 10b5-1	11/13/2025	Oelschlager Kristen M Chief Operating Officer Officer	Sell	-18,932 @ $35.10	($664,513.20)	12,323	(-60.57%)	Direct
11/11/2025 10b5-1	11/13/2025	Stokes Frank Chief Financial Officer CFO	Sell	-5,388 @ $35.08	($189,011.04)	43,328	(-11.06%)	Direct
11/05/2025 10b5-1	11/06/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-2,678 @ $31.85	($85,296.98)	53,615	(-4.76%)	Direct
11/04/2025 10b5-1	11/06/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-6,695 @ $30.44	($203,781.88)	56,293	(-10.63%)	Direct
10/31/2025 10b5-1	11/04/2025	Oelschlager Kristen M Chief Operating Officer Officer	Sell	-12,678 @ $25.04	($317,457.12)	27,569	(-31.50%)	Direct
10/20/2025 10b5-1	10/23/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $22.44	($30,047.16)	62,988	(-2.08%)	Direct
10/02/2025 10b5-1	10/06/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $22.58	($30,234.62)	64,327	(-2.04%)	Direct
09/17/2025 10b5-1	09/19/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $21.97	($29,419.17)	65,666	(-2.00%)	Direct
09/02/2025 10b5-1	09/04/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $23.93	($32,042.27)	67,005	(-1.96%)	Direct
08/27/2025 10b5-1	08/29/2025	Oelschlager Kristen M Chief Operating Officer Officer	Sell	-12,677 @ $22.02	($279,134.86)	141,116	(-8.24%)	Direct
08/27/2025	08/29/2025	Oelschlager Kristen M Chief Operating Officer Officer	Sell	-18,007 @ $21.69	($390,571.83)	153,793	(-10.48%)	Direct
08/15/2025 10b5-1	08/19/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,339 @ $20.04	($26,833.56)	68,344	(-1.92%)	Direct
08/13/2025 10b5-1	08/15/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-43,019 @ $19.50	($839,042.58)	69,683	(-38.17%)	Direct
06/27/2025 10b5-1	07/01/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-4,944 @ $20.30	($100,363.20)	69,683	(-6.62%)	Direct
04/21/2025 10b5-1	04/23/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,236 @ $21.52	($26,596.25)	74,627	(-1.63%)	Direct
04/09/2025 10b5-1	04/10/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,023 @ $20.22	($20,684.04)	75,863	(-1.33%)	Direct
04/08/2025 10b5-1	04/10/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-213 @ $20.03	($4,266.39)	76,886	(-0.28%)	Direct
03/26/2025 10b5-1	03/28/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-1,236 @ $20.30	($25,090.80)	77,099	(-1.58%)	Direct
03/10/2025 10b5-1	03/11/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-2,130 @ $19.52	($41,573.34)	78,335	(-2.65%)	Direct
03/07/2025 10b5-1	03/11/2025	Maetzold Derek J Pres. & Chief Exec. Officer Officer Director	Sell	-22,639 @ $20.12	($455,426.34)	80,465	(-21.96%)	Direct
02/20/2025 10b5-1	02/24/2025	Stokes Frank Chief Financial Officer CFO	Sell	-8,046 @ $26.70	($214,828.20)	35,319	(-18.55%)	Direct

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Castle Biosciences Inc - CSTL

Latest data: 1/29/2026 10:05:26 PM

Buy Breakdown

Total $0

Sell Breakdown

Total $7,501,632

Monthly Totals