TickerFacts.

A business in context

CSTL research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-19 · 0001628280-26-066724

  2. 4 · Ownership change

    Report date 2026-10-12 · 0001628280-26-065870

  3. 4 · Ownership change

    Report date 2026-10-05 · 0001628280-26-065327

  4. 4 · Ownership change

    Report date 2026-10-01 · 0001628280-26-064912

  5. 4 · Ownership change

    Report date 2026-09-29 · 0001628280-26-064267

  6. 4 · Ownership change

    Report date 2026-09-21 · 0001628280-26-063221

  7. 4 · Ownership change

    Report date 2026-09-14 · 0001628280-26-062255

  8. 4 · Ownership change

    Report date 2026-09-11 · 0001628280-26-062047

  9. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-051052

  10. 8-K · Current report

    Report date 2026-07-30 · 0001628280-26-051045 · Items 2.02,7.01,9.01

  11. 8-K · Current report

    Report date 2026-05-28 · 0001628280-26-039189 · Items 5.07

  12. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-031263

  13. 8-K · Current report

    Report date 2026-05-06 · 0001628280-26-031255 · Items 2.02,7.01,9.01

  14. DEF 14A · Proxy statement

    Report date 2026-05-28 · 0001628280-26-024166

  15. 10-K · Annual report

    Report date 2025-12-31 · 0001628280-26-012272

  16. 8-K · Current report

    Report date 2026-02-26 · 0001628280-26-012263 · Items 2.02,7.01,9.01

  17. 8-K · Current report

    Report date 2026-01-11 · 0001628280-26-001909 · Items 2.02,7.01,9.01

  18. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001628280-25-048254

  19. 8-K · Current report

    Report date 2025-11-03 · 0001628280-25-048248 · Items 2.02,7.01,9.01

  20. 8-K · Current report

    Report date 2025-08-05 · 0001447362-25-000099 · Items 5.03

  21. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001447362-25-000097

  22. 8-K · Current report

    Report date 2025-08-04 · 0001447362-25-000096 · Items 2.02,7.01,9.01

  23. 8-K · Current report

    Report date 2025-05-22 · 0001447362-25-000085 · Items 3.03,5.03,5.07,9.01

  24. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001447362-25-000069

  25. 8-K · Current report

    Report date 2025-05-05 · 0001447362-25-000068 · Items 2.02,7.01,9.01

  26. DEF 14A · Proxy statement

    Report date 2025-05-22 · 0001447362-25-000054

  27. 10-K · Annual report

    Report date 2024-12-31 · 0001447362-25-000031

  28. 8-K · Current report

    Report date 2025-02-27 · 0001447362-25-000030 · Items 2.02,7.01,9.01

  29. 8-K · Current report

    Report date 2025-01-12 · 0001447362-25-000012 · Items 2.02,7.01,9.01

  30. SC 13G/A · Ownership disclosure

    0001398344-24-020888

  31. SC 13G/A · Ownership disclosure

    0000814133-24-000092

  32. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001447362-24-000169

  33. 8-K · Current report

    Report date 2024-11-04 · 0001447362-24-000168 · Items 2.02,7.01,9.01

  34. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001447362-24-000122

  35. 8-K · Current report

    Report date 2024-08-05 · 0001447362-24-000121 · Items 2.02,7.01,9.01

  36. SC 13G/A · Ownership disclosure

    0001086364-24-008168

  37. 8-K · Current report

    Report date 2024-05-23 · 0001447362-24-000072 · Items 5.07

  38. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001447362-24-000060

  39. 8-K · Current report

    Report date 2024-05-02 · 0001447362-24-000059 · Items 2.02,7.01,9.01

  40. DEF 14A · Proxy statement

    Report date 2024-04-10 · 0001447362-24-000043

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 94 transaction rows94SGrant / award: 0 transaction rows0AExercise / conversion: 24 transaction rows24MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

118 matching transaction rows. Showing 51 to 100.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-14
2026-08-18
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
1100.00.0
2026-08-05
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock2546.02.39
2026-08-05
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2546.030.68
2026-08-05
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock556.030.68
2026-08-05
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock473.030.68
2026-08-05
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
2546.00.0
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock11935.031.34
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4782.031.34
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4063.031.34
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock2866.030.79
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock3374.030.79
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock8421.030.79
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock20356.02.39
2026-08-04
2026-08-06
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
20356.00.0
2026-08-03
2026-08-05
Oelschlager Kristen M
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1100.030.62
2026-08-03
2026-08-05
Oelschlager Kristen M
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock3000.029.12
2026-08-03
2026-08-05
Oelschlager Kristen M
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4486.030.0
2026-08-03
2026-08-04
Juvenal Tobin W
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1730.028.25
2026-08-03
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock4232.030.35
2026-08-03
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10664.030.35
2026-08-03
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock10664.02.39
2026-08-03
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock3597.030.35
2026-08-03
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
10664.00.0
2026-07-31
2026-08-04
Juvenal Tobin W
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1891.030.26
2026-07-31
2026-08-04
Juvenal Tobin W
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock8149.028.84
2026-07-31
2026-08-04
Juvenal Tobin W
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock7270.029.58
2026-07-31
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1690.030.15
2026-07-31
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock6480.02.39
2026-07-31
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock6480.030.15
2026-07-31
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1983.030.15
2026-07-31
2026-08-04
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
6480.00.0
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock43.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock10.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock6214.02.39
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock5982.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1307.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1110.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock268.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock268.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock268.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock268.024.13
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock232.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock50.025.06
2026-07-27
2026-07-29
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Disposed
Stock option (right to buy)
Derivative security
6214.00.0
2026-07-14
2026-07-16
MAETZOLD DEREK J
10b5-1 checkbox reported
M · Exercise / conversion
Acquired
Common Stock550.02.39
2026-07-14
2026-07-16
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock550.022.92
2026-07-14
2026-07-16
MAETZOLD DEREK J
10b5-1 checkbox reported
S · Sale
Disposed
Common Stock1357.022.92

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001447362CASTLE BIOSCIENCES INC

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

    Revenue in constant purchasing power

    USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

    Year endedReported USD revenueCPI-adjusted USD revenue
    2024-12-31$332.07M$356.67M
    2023-12-31$219.79M$243.03M
    2022-12-31$137.04M$157.75M
    2021-12-31$94.08M$116.97M
    2020-12-31$62.65M$81.56M
    2019-12-31$51.87M$68.35M
    2018-12-31$22.79M$30.57M

    Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

    Explore the CPI history ↗