Frank Stokes

CIK: 0001782815

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)9 (28.1%)

Position reduction

Option Exercises (M)9 (28.1%)

Derivative conversions

Awards (A)5 (15.6%)

Compensation grants

Other (G, F, J, C, D, …)9 (28.1%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

CSTL

CASTLE BIOSCIENCES INC

Officer

XGN

EXAGEN INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (32 total)

CSTL
CASTLE BIOSCIENCES INC
Aug 14, 2026
Sale(S)
Direct
24.9K shares at avg. $29.77$742K
XGN
EXAGEN INC.
Jun 9, 2026
Award(A)
Stock Option(right to buy)
Direct
37.5K shares-
CSTL
CASTLE BIOSCIENCES INC
Mar 5, 2026
Sale(S)
Direct
6K shares at avg. $27.98$168K
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2026
Exercise(M)
Direct
3.8K shares at avg. $3.38$13K
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2026
Exercise(M)
Direct
24.1K shares-
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2026
Tax Payment(F)
Direct
10.7K shares at avg. $28.17$302K
CSTL
CASTLE BIOSCIENCES INC
Mar 3, 2026
Award(A)
Restricted Stock Units
Direct
48.4K shares-
CSTL
CASTLE BIOSCIENCES INC
Mar 3, 2026
Sale(S)
Direct
5.3K shares at avg. $27.32$145K
CSTL
CASTLE BIOSCIENCES INC
Mar 3, 2026
Sale(S)
Direct
1.7K shares at avg. $27.81$47K
CSTL
CASTLE BIOSCIENCES INC
Mar 3, 2026
Tax Payment(F)
Direct
3.6K shares at avg. $27.57$100K
CSTL
CASTLE BIOSCIENCES INC
Jan 12, 2026
Award(A)
Direct
8.1K shares-
CSTL
CASTLE BIOSCIENCES INC
Dec 11, 2025
Sale(S)
Direct
4.5K shares at avg. $37.45$168K
CSTL
CASTLE BIOSCIENCES INC
Dec 10, 2025
Tax Payment(F)
Direct
2.8K shares at avg. $38.02$105K
CSTL
CASTLE BIOSCIENCES INC
Dec 10, 2025
Exercise(M)
Direct
6.2K shares-
CSTL
CASTLE BIOSCIENCES INC
Dec 9, 2025
Tax Payment(F)
Direct
6.5K shares at avg. $38.25$250K
CSTL
CASTLE BIOSCIENCES INC
Dec 9, 2025
Exercise(M)
Direct
14.6K shares-
CSTL
CASTLE BIOSCIENCES INC
Nov 11, 2025
Sale(S)
Direct
5.4K shares at avg. $35.08$189K
CSTL
CASTLE BIOSCIENCES INC
Aug 8, 2025
Exercise(M)
Direct
9.7K shares-
CSTL
CASTLE BIOSCIENCES INC
Aug 8, 2025
Tax Payment(F)
Direct
4.4K shares at avg. $19.36$84K
XGN
EXAGEN INC.
Jun 10, 2025
Award(A)
Stock Option(right to buy)
Direct
9K shares-
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2025
Exercise(M)
Direct
12.2K shares-
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2025
Tax Payment(F)
Direct
5.4K shares at avg. $22.23$121K
CSTL
CASTLE BIOSCIENCES INC
Mar 4, 2025
Award(A)
Restricted Stock Units
Direct
47.8K shares-
CSTL
CASTLE BIOSCIENCES INC
Feb 20, 2025
Sale(S)
Direct
8K shares at avg. $26.70$215K
CSTL
CASTLE BIOSCIENCES INC
Dec 10, 2024
Tax Payment(F)
Direct
900 shares at avg. $29.63$27K

		Type	Shares	Price		Ownership
Aug 14, 2026	CSTL CASTLE BIOSCIENCES INC	Sale(S)	24,908	$29.77	$741,511	Direct
Jun 9, 2026	XGN EXAGEN INC.	Award(A) Stock Option(right to buy)	37,500	-	-	Direct
Mar 5, 2026	CSTL CASTLE BIOSCIENCES INC	Sale(S)	6,001	$27.98	$167,908	Direct
Mar 4, 2026	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	3,800	$3.38	$12,844	Direct
Mar 4, 2026	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	24,146	-	$0	Direct
Mar 4, 2026	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	10,732	$28.17	$302,320	Direct
Mar 3, 2026	CSTL CASTLE BIOSCIENCES INC	Award(A) Restricted Stock Units	48,367	-	-	Direct
Mar 3, 2026	CSTL CASTLE BIOSCIENCES INC	Sale(S)	5,300	$27.32	$144,796	Direct
Mar 3, 2026	CSTL CASTLE BIOSCIENCES INC	Sale(S)	1,700	$27.81	$47,277	Direct
Mar 3, 2026	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	3,611	$27.57	$99,555	Direct
Jan 12, 2026	CSTL CASTLE BIOSCIENCES INC	Award(A)	8,124	-	$0	Direct
Dec 11, 2025	CSTL CASTLE BIOSCIENCES INC	Sale(S)	4,496	$37.45	$168,375	Direct
Dec 10, 2025	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	2,758	$38.02	$104,859	Direct
Dec 10, 2025	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	6,170	-	-	Direct
Dec 9, 2025	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	6,534	$38.25	$249,926	Direct
Dec 9, 2025	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	14,616	-	-	Direct
Nov 11, 2025	CSTL CASTLE BIOSCIENCES INC	Sale(S)	5,388	$35.08	$189,011	Direct
Aug 8, 2025	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	9,744	-	-	Direct
Aug 8, 2025	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	4,356	$19.36	$84,332	Direct
Jun 10, 2025	XGN EXAGEN INC.	Award(A) Stock Option(right to buy)	9,000	-	-	Direct
Mar 4, 2025	CSTL CASTLE BIOSCIENCES INC	Exercise(M)	12,186	-	-	Direct
Mar 4, 2025	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	5,448	$22.23	$121,109	Direct
Mar 4, 2025	CSTL CASTLE BIOSCIENCES INC	Award(A) Restricted Stock Units	47,838	-	-	Direct
Feb 20, 2025	CSTL CASTLE BIOSCIENCES INC	Sale(S)	8,046	$26.70	$214,828	Direct
Dec 10, 2024	CSTL CASTLE BIOSCIENCES INC	Tax Payment(F)	900	$29.63	$26,667	Direct

1-25 of 32 transactions

About Stokes Frank

Stokes Frank (SEC CIK 0001782815) files insider reports with the SEC as Chief Financial Officer of CASTLE BIOSCIENCES INC (CSTL) and Director of EXAGEN INC. (XGN).

Signal8 holds 14 ownership filings by Stokes Frank, all Form 4s, filed between Nov 19, 2024 and Aug 18, 2026. Those filings report 32 transactions, from Nov 15, 2024 to Aug 14, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Stokes Frank's filings is in FRIENDSWOOD, TX.

Recent filings by Stokes Frank

Aug 14, 2026: Open-market sale of CSTL shares (Form 4, code S).
Jun 9, 2026: Grant or award of XGN derivative securities (Form 4, code A).
Mar 5, 2026: Open-market sale of CSTL shares (Form 4, code S).
Mar 4, 2026: Option exercises of CSTL shares (2 lines, Form 4, code M).
Mar 4, 2026: Tax withholding of CSTL shares (Form 4, code F).

Other insiders filing for CASTLE BIOSCIENCES INC (CSTL)

Juvenal Tobin W, Chief Commercial Officer
MAETZOLD DEREK J, Pres. & Chief Exec. Officer
Oelschlager Kristen M, Chief Operating Officer
Olson Tiffany, Director
Goldberg Ellen, Director
Harrison Miles, Director

How to read Form 4 transaction codes