Mark Adams

CIK: 0001349123

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)2 (6.7%)

Derivative conversions

Awards (A)10 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)18 (60.0%)

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

Companies & Roles (4)

STX

Seagate Technology Holdings plc

Director

CORZ

Core Scientific, Inc./tx

Director

CDNS

CADENCE DESIGN SYSTEMS INC

Director

PENG

Penguin Solutions, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (30 total)

STX
Seagate Technology Holdings plc
Oct 24, 2026
Tax Payment(F)
Direct
380 shares at avg. $630.49$240K
STX
Seagate Technology Holdings plc
Oct 24, 2026
Award(A)
Restricted Share Unit
Direct
345 shares-
STX
Seagate Technology Holdings plc
Oct 24, 2026
Exercise(M)
Direct
1.6K shares-
CORZ
Core Scientific, Inc./tx
Jul 30, 2026
Award(A)
Direct
27.6K shares-
CDNS
CADENCE DESIGN SYSTEMS INC
May 7, 2026
Award(A)
Direct
714 shares-
CDNS
CADENCE DESIGN SYSTEMS INC
May 7, 2026
Gift(G)
Indirect
779 shares-
CDNS
CADENCE DESIGN SYSTEMS INC
May 7, 2026
Gift(G)
Direct
779 shares-
PENG
Penguin Solutions, Inc.
Jan 20, 2026
Tax Payment(F)
Direct
12.5K shares at avg. $19.96$250K
STX
Seagate Technology Holdings plc
Oct 25, 2025
Award(A)
Restricted Share Unit
Direct
1.6K shares-
PENG
Penguin Solutions, Inc.
Oct 20, 2025
Tax Payment(F)
Direct
11.4K shares at avg. $21.74$248K
STX
Seagate Technology Holdings plc
Oct 19, 2025
Tax Payment(F)
Direct
647 shares at avg. $225.40$146K
STX
Seagate Technology Holdings plc
Oct 19, 2025
Exercise(M)
Direct
2.7K shares-
PENG
Penguin Solutions, Inc.
Oct 14, 2025
Award(A)
Direct
108K shares-
PENG
Penguin Solutions, Inc.
Oct 14, 2025
Tax Payment(F)
Direct
54.8K shares at avg. $22.32$1.2M
PENG
Penguin Solutions, Inc.
Sep 29, 2025
Award(A)
Direct
108.7K shares-
PENG
Penguin Solutions, Inc.
Jul 20, 2025
Tax Payment(F)
Direct
11.4K shares at avg. $24.43$279K
CDNS
CADENCE DESIGN SYSTEMS INC
May 8, 2025
Award(A)
Direct
779 shares-
CDNS
CADENCE DESIGN SYSTEMS INC
May 2, 2025
Gift(G)
Direct
868 shares-
CDNS
CADENCE DESIGN SYSTEMS INC
May 2, 2025
Gift(G)
Indirect
868 shares-
PENG
Penguin Solutions, Inc.
Apr 20, 2025
Tax Payment(F)
Direct
11.4K shares at avg. $15.88$181K
PENG
Penguin Solutions, Inc.
Jan 20, 2025
Tax Payment(F)
Direct
11.7K shares at avg. $20.51$240K
CDNS
CADENCE DESIGN SYSTEMS INC
Dec 13, 2024
Gift(G)
Indirect
800 shares-
PENG
Penguin Solutions, Inc.
Oct 20, 2024
Disposition(D)
Direct
125K shares-
PENG
Penguin Solutions, Inc.
Oct 20, 2024
Tax Payment(F)
Direct
31.7K shares at avg. $15.69$497K
PENG
Penguin Solutions, Inc.
Oct 20, 2024
Tax Payment(F)
Direct
14.3K shares at avg. $15.69$224K

		Type	Shares	Price		Ownership
Oct 24, 2026	STX Seagate Technology Holdings plc	Tax Payment(F)	380	$630.49	$239,586	Direct
Oct 24, 2026	STX Seagate Technology Holdings plc	Award(A) Restricted Share Unit	345	-	-	Direct
Oct 24, 2026	STX Seagate Technology Holdings plc	Exercise(M)	1,580	-	$0	Direct
Jul 30, 2026	CORZ Core Scientific, Inc./tx	Award(A)	27,594	-	$0	Direct
May 7, 2026	CDNS CADENCE DESIGN SYSTEMS INC	Award(A)	714	-	$0	Direct
May 7, 2026	CDNS CADENCE DESIGN SYSTEMS INC	Gift(G)	779	-	$0	Indirect
May 7, 2026	CDNS CADENCE DESIGN SYSTEMS INC	Gift(G)	779	-	$0	Direct
Jan 20, 2026	PENG Penguin Solutions, Inc.	Tax Payment(F)	12,513	$19.96	$249,759	Direct
Oct 25, 2025	STX Seagate Technology Holdings plc	Award(A) Restricted Share Unit	1,580	-	-	Direct
Oct 20, 2025	PENG Penguin Solutions, Inc.	Tax Payment(F)	11,419	$21.74	$248,249	Direct
Oct 19, 2025	STX Seagate Technology Holdings plc	Tax Payment(F)	647	$225.40	$145,834	Direct
Oct 19, 2025	STX Seagate Technology Holdings plc	Exercise(M)	2,693	-	-	Direct
Oct 14, 2025	PENG Penguin Solutions, Inc.	Award(A)	107,958	-	-	Direct
Oct 14, 2025	PENG Penguin Solutions, Inc.	Tax Payment(F)	54,822	$22.32	$1,223,627	Direct
Sep 29, 2025	PENG Penguin Solutions, Inc.	Award(A)	108,656	-	-	Direct
Jul 20, 2025	PENG Penguin Solutions, Inc.	Tax Payment(F)	11,418	$24.43	$278,942	Direct
May 8, 2025	CDNS CADENCE DESIGN SYSTEMS INC	Award(A)	779	-	-	Direct
May 2, 2025	CDNS CADENCE DESIGN SYSTEMS INC	Gift(G)	868	-	-	Direct
May 2, 2025	CDNS CADENCE DESIGN SYSTEMS INC	Gift(G)	868	-	-	Indirect
Apr 20, 2025	PENG Penguin Solutions, Inc.	Tax Payment(F)	11,418	$15.88	$181,318	Direct
Jan 20, 2025	PENG Penguin Solutions, Inc.	Tax Payment(F)	11,685	$20.51	$239,659	Direct
Dec 13, 2024	CDNS CADENCE DESIGN SYSTEMS INC	Gift(G)	800	-	$0	Indirect
Oct 20, 2024	PENG Penguin Solutions, Inc.	Disposition(D)	125,000	-	$0	Direct
Oct 20, 2024	PENG Penguin Solutions, Inc.	Tax Payment(F)	31,675	$15.69	$496,981	Direct
Oct 20, 2024	PENG Penguin Solutions, Inc.	Tax Payment(F)	14,255	$15.69	$223,661	Direct

1-25 of 30 transactions

About Adams Mark

Adams Mark (SEC CIK 0001349123) files insider reports with the SEC as Director of Seagate Technology Holdings plc (STX), Director of Core Scientific, Inc./tx (CORZ) and Director of CADENCE DESIGN SYSTEMS INC (CDNS). Signal8 also holds filings tied to 1 other company.

Signal8 holds 20 ownership filings by Adams Mark (2 Form 3, 18 Form 4), filed between Oct 2, 2024 and Oct 26, 2026. Those filings report 30 transactions, from Sep 30, 2024 to Oct 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Adams Mark's filings is in FREMONT, CA.

Recent filings by Adams Mark

Oct 24, 2026: Tax withholding of STX shares (Form 4, code F).
Oct 24, 2026: Grant or award of STX derivative securities (Form 4, code A).
Oct 24, 2026: Option exercise of STX shares (Form 4, code M).
Jul 30, 2026: Grant or award of CORZ shares (Form 4, code A).
May 7, 2026: Grant or award of CDNS shares (Form 4, code A).

Other insiders filing for Seagate Technology Holdings plc (STX)

How to read Form 4 transaction codes