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Flock — Smart-money disclosures, made readable

Castle Biosciences Inc

CSTLNASDAQ · US

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Holders

BlackRock
13F filer
$66.3M
3,044,973 sh
as-of 30 Jun 2024Stale
Renaissance Technologies
13F filer
$13.1M
532,800 sh
as-of 31 Mar 2026Quarterly
Two Sigma Investments
13F filer
$6.1M
248,840 sh
as-of 31 Mar 2026Quarterly

Ownership

Ownership data not yet available for this security.

Disclosure timeline

REDUCEDT+7
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−1,730 sh · $51.2K
Filed 19 Aug 2026SEC Form 4view source
DISCLOSEDQuarterly
Renaissance Technologies
Castle Biosciences Inc · NASDAQ
532,800 sh · $13.1M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDQuarterly
Two Sigma Investments
Castle Biosciences Inc · NASDAQ
248,840 sh · $6.1M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
BlackRock
Castle Biosciences Inc · NASDAQ
3,044,973 sh · $66.3M
Filed 30 Jun 2024SEC 13Fview source

Announcements

No announcements on record for this security.

CSTLNASDAQ · US

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Latest filing19 Aug 2026T+7

3 disclosed holders · 4 disclosures · 0 announcements

Ownership

Ownership data not yet available for this security.

Announcements

No announcements on record for this security.