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  3. KABAKOFF DAVID S

KABAKOFF DAVID S

CIK: 0001024008
Director
Primary company: CASTLE BIOSCIENCES INC (CSTL)

KABAKOFF DAVID S is a corporate insider at CASTLE BIOSCIENCES INC (CSTL) filing SEC Form 4 transactions. 122 transactions across 5 companies, totaling $1,150,000 in purchases and $64,781,435 in sales. Source: SEC EDGAR.

Total Transactions
122
Total Buy Value
$1.15M
Total Sell Value
$64.78M
Net Activity
$-63.63M
Last Transaction
Jun 2025
Companies
5

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Company
Type
Shares
Price
Value
Shares After
Date
SEC
NextCure, Inc.
NXTC
Award28,050--28,050
6/20/2025
Filed: 6/24/2025
Filing →
NextCure, Inc.
NXTC
Award28,050--28,050
6/20/2024
Filed: 6/21/2024
Filing →
NextCure, Inc.
NXTC
Award14,250$0.00$014,250
6/22/2023
Filed: 6/23/2023
Filing →
NextCure, Inc.
NXTC
Award14,250$0.00$014,250
6/23/2022
Filed: 6/24/2022
Filing →
NextCure, Inc.
NXTC
Award14,250$0.00$014,250
6/24/2021
Filed: 6/28/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale30,000$75.07$2.25M503,577
6/17/2021
Filed: 6/21/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Award830$0.00$0830
6/10/2021
Filed: 6/14/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Award3,379$0.00$03,379
6/10/2021
Filed: 6/14/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale40,000$73.99$2.96M533,577
4/6/2021
Filed: 4/7/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale20,000$73.22$1.46M573,577
4/5/2021
Filed: 4/7/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale50,000$71.79$3.59M593,577
4/5/2021
Filed: 4/7/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale20,000$70.80$1.42M643,577
4/1/2021
Filed: 4/2/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale40,000$70.00$2.80M663,577
4/1/2021
Filed: 4/2/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale10,000$68.15$682K703,577
3/31/2021
Filed: 4/2/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale20,000$67.56$1.35M713,577
3/31/2021
Filed: 4/2/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale10,000$67.12$671K733,577
3/22/2021
Filed: 3/23/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale10,000$66.17$662K743,577
3/19/2021
Filed: 3/23/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale10,000$66.14$661K753,577
3/17/2021
Filed: 3/18/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale20,000$65.73$1.31M763,577
3/16/2021
Filed: 3/18/2021
Filing →
CASTLE BIOSCIENCES INC
CSTL
Sale40,000$64.63$2.59M783,577
3/16/2021
Filed: 3/18/2021
Filing →
NextCure, Inc.
NXTC
Type
Award
Shares
28,050
Price
-
Value
-
NextCure, Inc.
NXTC
Type
Award
Shares
28,050
Price
-
Value
-
NextCure, Inc.
NXTC
Type
Award
Shares
14,250
Price
$0.00
Value
$0
NextCure, Inc.
NXTC
Type
Award
Shares
14,250
Price
$0.00
Value
$0
NextCure, Inc.
NXTC
Type
Award
Shares
14,250
Price
$0.00
Value
$0
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
30,000
Price
$75.07
Value
$2.25M
CASTLE BIOSCIENCES INC
CSTL
Type
Award
Shares
830
Price
$0.00
Value
$0
CASTLE BIOSCIENCES INC
CSTL
Type
Award
Shares
3,379
Price
$0.00
Value
$0
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
40,000
Price
$73.99
Value
$2.96M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
20,000
Price
$73.22
Value
$1.46M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
50,000
Price
$71.79
Value
$3.59M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
20,000
Price
$70.80
Value
$1.42M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
40,000
Price
$70.00
Value
$2.80M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
10,000
Price
$68.15
Value
$682K
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
20,000
Price
$67.56
Value
$1.35M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
10,000
Price
$67.12
Value
$671K
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
10,000
Price
$66.17
Value
$662K
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
10,000
Price
$66.14
Value
$661K
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
20,000
Price
$65.73
Value
$1.31M
CASTLE BIOSCIENCES INC
CSTL
Type
Sale
Shares
40,000
Price
$64.63
Value
$2.59M
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© 2026 13F Insight — Track smart money. Ask the AI Agent.

Listed on Turbo0Featured on Findly ToolsFeatured on toolfame.comFeatured on saasfame.comFeatured on Gets.ToolsZ-ImageFeatured On Micro SaaS ExamplesListed on MarketingDBFeatured on SaasDBFeatured on FazierBusiness Services - OnToplist.comFeatured on SubmitMySaasFeatured on ToolDirsFeatured on ToolfioFeatured on Twelve ToolsListed on uno directoryFeatured on Dang.aiFeatured on ToolPilotFeatured on Startup FameFeatured on PostmakeFeatured on Code.Market