Marc Stapley

CIK: 0001539796

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)16 (42.1%)

Position reduction

Option Exercises (M)2 (5.3%)

Derivative conversions

Awards (A)9 (23.7%)

Compensation grants

Other (G, F, J, C, D, …)11 (28.9%)

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

Companies & Roles (2)

VCYT

VERACYTE, INC.

DirectorOfficer

GKOS

GLAUKOS Corp

Director

Discretionary Trading P&L

Holdings

Transaction History (38 total)

VCYT
VERACYTE, INC.
Sep 2, 2026
Tax Payment(F)
Direct
8.8K shares at avg. $44.88$394K
VCYT
VERACYTE, INC.
Jun 4, 2026
Exercise(M)
Direct
138.1K shares at avg. $36.60$5.1M
VCYT
VERACYTE, INC.
Jun 4, 2026
Sale(S)
Direct
138.1K shares at avg. $50.12$6.9M
VCYT
VERACYTE, INC.
Jun 2, 2026
Tax Payment(F)
Direct
9K shares at avg. $47.80$431K
GKOS
GLAUKOS Corp
May 28, 2026
Award(A)
Stock Option (Right to Buy)
Direct
3K shares-
GKOS
GLAUKOS Corp
May 28, 2026
Award(A)
Direct
1.9K shares-
VCYT
VERACYTE, INC.
Mar 6, 2026
Award(A)
Direct
92.1K shares-
VCYT
VERACYTE, INC.
Mar 4, 2026
Sale(S)
Direct
19.2K shares at avg. $35.56$684K
VCYT
VERACYTE, INC.
Mar 4, 2026
Sale(S)
Direct
26.3K shares at avg. $36.28$953K
VCYT
VERACYTE, INC.
Mar 2, 2026
Tax Payment(F)
Direct
19.5K shares at avg. $36.01$701K
VCYT
VERACYTE, INC.
Feb 26, 2026
Tax Payment(F)
Direct
35.8K shares at avg. $38.75$1.4M
VCYT
VERACYTE, INC.
Feb 26, 2026
Award(A)
Direct
139.1K shares-
GKOS
GLAUKOS Corp
Jan 22, 2026
Sale(S)
Direct
3.8K shares at avg. $126.07$481K
GKOS
GLAUKOS Corp
Jan 22, 2026
Exercise(M)
Direct
15K shares at avg. $24.69$370K
GKOS
GLAUKOS Corp
Jan 22, 2026
Sale(S)
Direct
3.9K shares at avg. $126.96$494K
GKOS
GLAUKOS Corp
Jan 22, 2026
Sale(S)
Direct
1.7K shares at avg. $127.92$214K
GKOS
GLAUKOS Corp
Jan 22, 2026
Sale(S)
Direct
4.3K shares at avg. $129.11$558K
GKOS
GLAUKOS Corp
Jan 22, 2026
Sale(S)
Direct
1.3K shares at avg. $129.78$169K
GKOS
GLAUKOS Corp
Jan 2, 2026
Award(A)
Direct
727 shares-
VCYT
VERACYTE, INC.
Dec 4, 2025
Sale(S)
Direct
3.2K shares at avg. $47.35$152K
VCYT
VERACYTE, INC.
Dec 4, 2025
Sale(S)
Direct
4.4K shares at avg. $46.90$209K
VCYT
VERACYTE, INC.
Dec 2, 2025
Tax Payment(F)
Direct
7.9K shares at avg. $46.16$365K
VCYT
VERACYTE, INC.
Sep 4, 2025
Sale(S)
Direct
7.7K shares at avg. $30.41$233K
VCYT
VERACYTE, INC.
Sep 2, 2025
Tax Payment(F)
Direct
7.9K shares at avg. $30.11$238K
VCYT
VERACYTE, INC.
Jun 2, 2025
Tax Payment(F)
Direct
9.4K shares at avg. $26.74$251K

		Type	Shares	Price		Ownership
Sep 2, 2026	VCYT VERACYTE, INC.	Tax Payment(F)	8,782	$44.88	$394,136	Direct
Jun 4, 2026	VCYT VERACYTE, INC.	Exercise(M)	138,051	$36.60	$5,052,667	Direct
Jun 4, 2026	VCYT VERACYTE, INC.	Sale(S)	138,051	$50.12	$6,919,585	Direct
Jun 2, 2026	VCYT VERACYTE, INC.	Tax Payment(F)	9,012	$47.80	$430,774	Direct
May 28, 2026	GKOS GLAUKOS Corp	Award(A) Stock Option (Right to Buy)	2,987	-	-	Direct
May 28, 2026	GKOS GLAUKOS Corp	Award(A)	1,878	-	$0	Direct
Mar 6, 2026	VCYT VERACYTE, INC.	Award(A)	92,099	-	$0	Direct
Mar 4, 2026	VCYT VERACYTE, INC.	Sale(S)	19,244	$35.56	$684,226	Direct
Mar 4, 2026	VCYT VERACYTE, INC.	Sale(S)	26,279	$36.28	$953,368	Direct
Mar 2, 2026	VCYT VERACYTE, INC.	Tax Payment(F)	19,455	$36.01	$700,575	Direct
Feb 26, 2026	VCYT VERACYTE, INC.	Tax Payment(F)	35,841	$38.75	$1,388,839	Direct
Feb 26, 2026	VCYT VERACYTE, INC.	Award(A)	139,074	-	$0	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Sale(S)	3,812	$126.07	$480,579	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Exercise(M)	15,000	$24.69	$370,350	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Sale(S)	3,892	$126.96	$494,128	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Sale(S)	1,671	$127.92	$213,754	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Sale(S)	4,325	$129.11	$558,401	Direct
Jan 22, 2026	GKOS GLAUKOS Corp	Sale(S)	1,300	$129.78	$168,714	Direct
Jan 2, 2026	GKOS GLAUKOS Corp	Award(A)	727	-	$0	Direct
Dec 4, 2025	VCYT VERACYTE, INC.	Sale(S)	3,220	$47.35	$152,462	Direct
Dec 4, 2025	VCYT VERACYTE, INC.	Sale(S)	4,448	$46.90	$208,613	Direct
Dec 2, 2025	VCYT VERACYTE, INC.	Tax Payment(F)	7,914	$46.16	$365,310	Direct
Sep 4, 2025	VCYT VERACYTE, INC.	Sale(S)	7,667	$30.41	$233,133	Direct
Sep 2, 2025	VCYT VERACYTE, INC.	Tax Payment(F)	7,914	$30.11	$238,291	Direct
Jun 2, 2025	VCYT VERACYTE, INC.	Tax Payment(F)	9,399	$26.74	$251,329	Direct

1-25 of 38 transactions

About Stapley Marc

Stapley Marc (SEC CIK 0001539796) files insider reports with the SEC as Chief Executive Officer of VERACYTE, INC. (VCYT) and Director of GLAUKOS Corp (GKOS).

Signal8 holds 21 ownership filings by Stapley Marc, all Form 4s, filed between Sep 4, 2024 and Sep 4, 2026. Those filings report 38 transactions, from Sep 2, 2024 to Sep 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Stapley Marc's filings is in SOUTH SAN FRANCISCO, CA.

Recent filings by Stapley Marc

Sep 2, 2026: Tax withholding of VCYT shares (Form 4, code F).
Jun 4, 2026: Option exercise of VCYT shares (Form 4, code M).
Jun 4, 2026: Open-market sale of VCYT shares (Form 4, code S).
Jun 2, 2026: Tax withholding of VCYT shares (Form 4, code F).
May 28, 2026: Grants or awards of GKOS derivative securities (2 lines, Form 4, code A).

Other insiders filing for VERACYTE, INC. (VCYT)

Wygant Jonathan, VP, Chief Accounting Officer
Holstein Jens, Director
EASTHAM KARIN, Director
Bhanji Muna, Director
Leite John, Global Chief Commercial Off
Febbo Phillip G., Chief Scientific & Med Officer

How to read Form 4 transaction codes