Flock, smart-money disclosures made readable

Castle Biosciences Inc

CSTLNASDAQ · US

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Holders

Ownership

Ownership data not yet available for this security.

Disclosure timeline

REDUCEDT+7
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−2,718 sh · $96.7K
Filed 7 Oct 2026SEC Form 4view source
ACQUIREDT+7
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
+8,165 sh · $19.5K
Filed 7 Oct 2026SEC Form 4view source
REDUCEDT+7
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−3,198 sh · $113.7K
Filed 7 Oct 2026SEC Form 4view source
REDUCEDT+7
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−8,580 sh · $305.2K
Filed 7 Oct 2026SEC Form 4view source
ACQUIREDT+7
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
+4,153 sh · $14.0K
Filed 5 Oct 2026SEC Form 4view source
REDUCEDT+7
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−2,807 sh · $100.4K
Filed 5 Oct 2026SEC Form 4view source
REDUCEDT+7
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−1,346 sh · $49.0K
Filed 5 Oct 2026SEC Form 4view source
REDUCEDT+30
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−1,034 sh · $35.4K
Filed 1 Oct 2026SEC Form 4view source
REDUCEDT+30
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−5,543 sh · $196.8K
Filed 1 Oct 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−8,580 sh · $303.2K
Filed 23 Sept 2026SEC Form 4view source

Announcements

No announcements on record for this security.

Show all 49 disclosures

REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−2,718 sh · $96.0K
Filed 23 Sept 2026SEC Form 4view source
ACQUIREDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
+8,580 sh · $20.5K
Filed 23 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−3,198 sh · $113.0K
Filed 23 Sept 2026SEC Form 4view source
REDUCEDT+30
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−3,294 sh · $115.8K
Filed 16 Sept 2026SEC Form 4view source
REDUCEDT+30
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−3,306 sh · $106.9K
Filed 16 Sept 2026SEC Form 4view source
ACQUIREDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
+8,584 sh · $20.5K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−2,656 sh · $85.0K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−8,361 sh · $267.6K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−223 sh · $7.3K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−3,124 sh · $100.0K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−71 sh · $2.3K
Filed 15 Sept 2026SEC Form 4view source
REDUCEDT+30
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−83 sh · $2.7K
Filed 15 Sept 2026SEC Form 4view source
ACQUIREDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
+4,152 sh · $14.0K
Filed 3 Sept 2026SEC Form 4view source
REDUCEDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−3,952 sh · $131.8K
Filed 3 Sept 2026SEC Form 4view source
REDUCEDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−200 sh · $6.8K
Filed 3 Sept 2026SEC Form 4view source
REDUCEDStale
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−1,730 sh · $56.8K
Filed 2 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−956 sh · $32.4K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−11,472 sh · $380.2K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−21 sh · $711
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−21 sh · $711
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−257 sh · $8.5K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−21 sh · $711
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−257 sh · $8.5K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−2,129 sh · $70.6K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−21 sh · $711
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−2,505 sh · $83.0K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−257 sh · $8.5K
Filed 1 Sept 2026SEC Form 4view source
ACQUIREDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
+12,428 sh · $29.7K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−177 sh · $6.0K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−209 sh · $7.1K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Maetzold Derek J
Castle Biosciences Inc · NASDAQ
−257 sh · $8.5K
Filed 1 Sept 2026SEC Form 4view source
REDUCEDStale
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−9,050 sh · $317.1K
Filed 27 Aug 2026SEC Form 4view source
REDUCEDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−7,161 sh · $245.4K
Filed 26 Aug 2026SEC Form 4view source
REDUCEDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−5,223 sh · $180.9K
Filed 26 Aug 2026SEC Form 4view source
REDUCEDStale
Oelschlager Kristen M
Castle Biosciences Inc · NASDAQ
−12,218 sh · $411.6K
Filed 26 Aug 2026SEC Form 4view source
REDUCEDStale
Juvenal Tobin W
Castle Biosciences Inc · NASDAQ
−1,730 sh · $51.2K
Filed 19 Aug 2026SEC Form 4view source
DISCLOSEDStale
Renaissance Technologies
Castle Biosciences Inc · NASDAQ
532,800 sh · $13.1M
Filed 31 Mar 2026SEC 13Fview source
DISCLOSEDStale
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