Insider · CIK 0001856542

Juvenal Tobin W

Reports to the SEC for 1 company · FRIENDSWOOD, TX

sec.gov

Transactions

Companies

Filings

CIK

0001856542

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-12	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−3,288 sh	$33.64	−$111K	48,719
2026-09-30	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,034 sh	$34.20	−$35.4K	52,007
2026-09-29	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−5,543 sh	$35.50	−$197K	53,041
2026-09-15	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−3,294 sh	$35.14	−$116K	58,584
2026-09-14	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−3,306 sh	$32.32	−$107K	61,878
2026-08-31	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,730 sh	$32.81	−$56.8K	65,184
2026-08-25	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−9,050 sh	$35.04	−$317K	66,914
2026-08-17	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,730 sh	$29.59	−$51.2K	75,964
2026-08-03	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,730 sh	$28.25	−$48.9K	78,995
2026-07-31	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−7,270 sh	$29.58	−$215K	82,616
2026-07-31	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−8,149 sh	$28.84	−$235K	89,886
2026-07-31	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,891 sh	$30.26	−$57.2K	80,725
2026-05-21	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+11.2K sh	$3.38	+$37.9K	98,035
2026-05-21	CSTLCASTLE BIOSCIENCES INC · Stock option (right to buy)M Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−11.2K sh	—	—	0
2026-03-12	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−20.9K sh	$25.24	−$527K	86,825
2026-03-04	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−10.4K sh	$28.17	−$293K	107,688
2026-03-04	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−12K sh	—	—	35,878
2026-03-04	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−13.8K sh	—	—	27,621
2026-03-04	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+25.8K sh	—	—	118,087
2026-03-03	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsA Award	Chief Commercial Officer	AAward	+48.4K sh	—	—	48,367
2026-03-03	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−3,716 sh	$27.57	−$102K	92,316
2026-01-12	CSTLCASTLE BIOSCIENCES INCA Award	Chief Commercial Officer	AAward	+9,207 sh	—	—	96,032
2026-01-12	CSTLCASTLE BIOSCIENCES INC · Performance-Based Stock UnitA Award	Chief Commercial Officer	AAward	+9,207 sh	—	—	9,207
2025-12-11	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−13.2K sh	$37.48	−$495K	86,825
2025-12-10	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−6,170 sh	—	—	0
2025-12-10	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+6,170 sh	—	—	102,515
2025-12-10	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−2,490 sh	$38.02	−$94.7K	100,025
2025-12-09	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+16K sh	—	—	102,786
2025-12-09	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−6,441 sh	$38.25	−$246K	96,345
2025-12-09	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−16K sh	—	—	15,961
2025-11-24	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−1,301 sh	$38.39	−$49.9K	77,694
2025-11-20	CSTLCASTLE BIOSCIENCES INC · Stock option (right to buy)M Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−4,693 sh	—	—	11,210
2025-11-20	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−4,693 sh	$35.58	−$167K	84,595
2025-11-20	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+4,693 sh	$3.38	+$15.9K	89,288
2025-11-12	CSTLCASTLE BIOSCIENCES INC · Stock option (right to buy)M Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−200 sh	—	—	15,903
2025-11-12	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+200 sh	$3.38	+$676	84,727
2025-11-12	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−200 sh	$35.40	−$7,080	84,527
2025-11-12	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−200 sh	$35.40	−$7,080	83,827
2025-11-11	CSTLCASTLE BIOSCIENCES INC · Stock option (right to buy)M Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−500 sh	—	—	16,103
2025-11-11	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−500 sh	$35.39	−$17.7K	84,527
2025-11-11	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+500 sh	$3.38	+$1,690	85,027
2025-11-11	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−500 sh	$35.39	−$17.7K	84,027
2025-08-08	CSTLCASTLE BIOSCIENCES INC · Performance-Based Stock UnitM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−10.6K sh	—	—	0
2025-08-08	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−4,294 sh	$19.36	−$83.1K	84,527
2025-08-08	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+10.6K sh	—	—	88,821
2025-03-04	CSTLCASTLE BIOSCIENCES INCF Tax Payment	Chief Commercial Officer	FTax Payment	−5,573 sh	$22.23	−$124K	78,181
2025-03-04	CSTLCASTLE BIOSCIENCES INCM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	+13.8K sh	—	—	83,754
2025-03-04	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsA Award	Chief Commercial Officer	AAward	+47.8K sh	—	—	47,838
2025-03-04	CSTLCASTLE BIOSCIENCES INC · Restricted Stock UnitsM Exercise/Conversion	Chief Commercial Officer	MExercise/Conversion	−13.8K sh	—	—	41,432
2025-01-06	CSTLCASTLE BIOSCIENCES INCS Sale	Chief Commercial Officer	SSale	−2,230 sh	$30.00	−$66.9K	69,943

Recent filings

Accepted (ET)
Oct 14 16:064
Juvenal Tobin W0001628280-26-065870
SEC(opens sec.gov)
Oct 14
Juvenal Tobin W0001628280-26-064267
SEC(opens sec.gov)
Sep 164
Juvenal Tobin W0001628280-26-062255
SEC(opens sec.gov)
Sep 24
Juvenal Tobin W0001628280-26-060089
SEC(opens sec.gov)
Aug 274
Juvenal Tobin W0001628280-26-059272
SEC(opens sec.gov)
Aug 194
Juvenal Tobin W0001628280-26-057949
SEC(opens sec.gov)
Aug 64
Juvenal Tobin W0001628280-26-054338
SEC(opens sec.gov)
Aug 44
Juvenal Tobin W0001628280-26-052648
SEC(opens sec.gov)
May 264
Juvenal Tobin W0001628280-26-038072
SEC(opens sec.gov)
Mar 164
Juvenal Tobin W0001628280-26-018156
SEC(opens sec.gov)
Mar 54
Juvenal Tobin W0001628280-26-015355
SEC(opens sec.gov)

Companies

CASTLE BIOSCIENCES INCChief Commercial OfficerCSTL

Address

C/O CASTLE BIOSCIENCES, INC. 1500 W. PARKWOOD AVE SUITE 400

FRIENDSWOOD, TX, 77546