Derek J. Maetzold owns 0.56% of Castle Biosciences
170,438 shares as of the October 19, 2026 filing, worth $5.7M at the latest close.
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Free.
The stake
0.56%
worth $5.7M at the latest close
Stake rank
#2,065
by dollar value of the stake
Last sale
8 days ago
Oct 19, 2026
Last buy
None
no purchases since 2020
Derek J. Maetzold owns 0.56% of CASTLE BIOSCIENCES INC: 170,438 of 30,549,507 shares, worth about $5.7M at the 2026-10-26 close. The stake has moved from 9.61% in 2019 to 0.56% on 2026-10-19, across 183 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $462,567 on 2026-10-19.
How the stake is held
as of the Oct 19, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Oct 19, 2026 · Form 4 ↗
HELD DIRECTLY
12,484
7.3%
HELD INDIRECTLY · 10 VEHICLES
157,954
92.7%
By DJM Grantor Retained Annuity Trust No. 8
40,935
24.0%
By DJM Grantor Retained Annuity Trust No. 7
27,862
16.3%
DJM Grantor Retained Annuity Trust No. 9
23,216
13.6%
By DJM Grantor Retained Annuity Trust No. 6
11,963
7.0%
By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk
11,256
6.6%
By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold
11,256
6.6%
THE STAKE
170,438
0.56%
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