Insider Transactions

What Castle Biosciences, Inc.'s executives and directors are doing with their own shares, from SEC Form 3/4/5 filings — separating what the filings state (awards, withholding, disclosed plans) from what only the pattern of dates shows.

Insider trades

	3 months	12 months
Open-market buys	0	0
Sells	74	216
Total trades	85	286

Shares traded

	3 months	12 months
Acquired	87,208	590,912
Disposed	265,876	755,381
Net activity	−178,668	−164,469

See the story behind these numbers

View rich charts and dive into the patterns of specific insiders — who is accumulating, who is winding down, and which sale explanations the filings actually support.

Open-market buyer Disclosed 10b5-1 Heavy discretionary Sign up free

All transactions

All Buys Sells

Insider	Relation	Date	Transaction	Shares	Price	Value	Shares held
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 19	Open-market sale · S	−2,718	$31.91	−$86.7K	4,114
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 19	Open-market sale · S	−3,198	$31.91	−$102K	4,840
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 19	Open-market sale · S	−8,580	$31.91	−$274K	12,484
Juvenal Tobin W	Chief Commercial Officer	Oct 12	Open-market sale · S	−3,288	$33.64	−$111K	48,719
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 05	Open-market sale · S	−2,718	$35.57	−$96.7K	6,832
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 05	Open-market sale · S	−3,198	$35.57	−$114K	8,038
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 05	Open-market sale · S	−8,580	$35.57	−$305K	21,064
Maetzold Derek J	Pres. & Chief Exec. Officer	Oct 05	Exercise / conversion · M	+8,165	$2.39	+$19.5K	29,644
Oelschlager Kristen M	Chief Operating Officer	Oct 01	Open-market sale · S	−1,346	$36.38	−$49K	13,356
Oelschlager Kristen M	Chief Operating Officer	Oct 01	Open-market sale · S	−2,807	$35.75	−$100K	14,702
Oelschlager Kristen M	Chief Operating Officer	Oct 01	Exercise / conversion · M	+4,153	$3.38	+$14K	17,509
Juvenal Tobin W	Chief Commercial Officer	Sep 30	Open-market sale · S	−1,034	$34.20	−$35.4K	52,007
Juvenal Tobin W	Chief Commercial Officer	Sep 29	Open-market sale · S	−5,543	$35.50	−$197K	53,041
Maetzold Derek J	Pres. & Chief Exec. Officer	Sep 21	Open-market sale · S	−2,718	$35.33	−$96K	9,550
Maetzold Derek J	Pres. & Chief Exec. Officer	Sep 21	Open-market sale · S	−3,198	$35.33	−$113K	11,236
Maetzold Derek J	Pres. & Chief Exec. Officer	Sep 21	Open-market sale · S	−8,580	$35.33	−$303K	21,479
Maetzold Derek J	Pres. & Chief Exec. Officer	Sep 21	Exercise / conversion · M	+8,580	$2.39	+$20.5K	30,059
Juvenal Tobin W	Chief Commercial Officer	Sep 15	Open-market sale · S	−3,294	$35.14	−$116K	58,584
Juvenal Tobin W	Chief Commercial Officer	Sep 14	Open-market sale · S	−3,306	$32.32	−$107K	61,878
Maetzold Derek J	Pres. & Chief Exec. Officer	Sep 11	Open-market sale · S	−71	$32.78	−$2.33K	12,268

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