CSTLCASTLE BIOSCIENCES INC

CIK 0001447362 · last filing 1d ago · 9 insider transactions

Buy volume

$14.9K

2 buy transactions

Sell volume

$238.9K

7 sell transactions

Net flow

-$224.1K

Net selling

Total flow

$253.8K

9 priced transactions

Disclosure radarcross-source convergence

Divergent1/5 sources

Form 41d ago
MAETZOLD DEREK J
Pres. & Chief Exec. Officer · Director · sold $224.1K

Live chart by TradingView

Most recent insider trade:Bought6,214 sh@ $2.39on Jul 01, 2026view filing →

Live chart via TradingView. Insider trade price and date are from the underlying SEC filing. Not financial advice.

Buys Sellsnet -$224.1K

Filed	Insider	Transaction	Shares	Price	Value	Signal	Flags
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Buy · M	6,214	$2.39	$14.9K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	6,214	$24.29	$150.9K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	1,357	$24.29	$33.0K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	1,153	$24.29	$28.0K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	278	$24.29	$6.8K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	278	$24.29	$6.8K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	278	$24.29	$6.8K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Sell · S	278	$24.29	$6.8K	Neutral+4	10b5-1 Late
1d ago Jul 01, 2026	MAETZOLD DEREK J Pres. & Chief Exec. Officer · Director	Buy · M	6,214	$0.00	$0	Neutral+4	10b5-1 LateDeriv