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Rule 13d-1(b)
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Rule 13d-1(c)
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Rule 13d-1(d)
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CUSIP No. 14843C 105
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13G
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Page 2 of 5 Pages
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1
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NAMES OF REPORTING PERSONS
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Derek J. Maetzold
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2
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
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(a)☐
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(b)☐
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3
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SEC USE ONLY
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4
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CITIZENSHIP OR PLACE OF ORGANIZATION
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United States of America
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NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
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5
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SOLE VOTING POWER
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1,655,275 Shares (1)
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6
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SHARED VOTING POWER
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0 Shares
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7
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SOLE DISPOSITIVE POWER
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1,655,275 Shares (1)
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8
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SHARED DISPOSITIVE POWER
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0 Shares
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9
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
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1,655,275 Shares
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10
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CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
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☐
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11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
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6.62% (2)
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12
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TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
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IN
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CUSIP No. 14843C 105
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13G
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Page 3 of 5 Pages
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Item 1(a).
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Name of Issuer
Castle Biosciences, Inc.
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Item 1(b).
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Address of Issuer’s Principal Executive Offices:
820 S. Friendswood Drive, Suite 201
Friendswood, TX 77546
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Item 2(a).
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Names of Persons Filing:
Derek J. Maetzold
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Item 2(b).
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Address of Principal Business Office, or, if none, Residence:
820 S. Friendswood Drive, Suite 201
Friendswood, TX 77546
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Item 2(c).
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Citizenship:
United States of America
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Item 2(d).
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Title of Class of Securities:
Common Stock
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Item 2(e).
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CUSIP No.:
14843C 105
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Item 3.
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Not Applicable.
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Item 4.
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Ownership
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(a)
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Amount beneficially owned
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(b) |
Percent of Class:
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(c) |
Number of shares as to which such person has:
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Item 5. |
Ownership of Five Percent or Less of a Class.
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Item 6. |
Ownership of More than Five Percent on Behalf of Another Person
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CUSIP No. 14843C 105
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13G
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Page 4 of 5 Pages
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Item 7. |
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person
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Item 8. |
Identification and Classification of Members of the Group
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Item 9. |
Notice of Dissolution of Group
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CUSIP No. 14843C 105
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13G
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Page 5 of 5 Pages
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Item 10. |
Certifications
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/s/ Derek J. Maetzold
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Derek J. Maetzold
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