Dion J. Weisler

CIK: 0001580693

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)3 (15.8%)

Derivative conversions

Awards (A)12 (63.2%)

Compensation grants

Other (G, F, J, C, D, …)4 (21.1%)

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

Companies & Roles (3)

TMO

THERMO FISHER SCIENTIFIC INC.

Director

INTC

INTEL CORP

Director

BHP

BHP Group Ltd

Director

Discretionary Trading P&L

Holdings

Transaction History (19 total)

TMO
THERMO FISHER SCIENTIFIC INC.
Sep 26, 2026
Award(A)
Phantom Stock Units
Direct
56 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Jun 27, 2026
Award(A)
Phantom Stock Units
Direct
73 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
May 20, 2026
Award(A)
Direct
499 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
May 20, 2026
Tax Payment(F)
Direct
80 shares at avg. $451.79$36K
INTC
INTEL CORP
May 13, 2026
Award(A)
Restricted Stock Units
Direct
2.8K shares-
INTC
INTEL CORP
May 7, 2026
Exercise(M)
Direct
12.6K shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Dec 31, 2025
Award(A)
Phantom Stock Units
Direct
65 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Sep 27, 2025
Award(A)
Phantom Stock Units
Direct
81 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Jun 28, 2025
Award(A)
Phantom Stock Units
Direct
92 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
May 21, 2025
Award(A)
Direct
565 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
May 21, 2025
Tax Payment(F)
Direct
54 shares at avg. $398.28$21K
INTC
INTEL CORP
May 7, 2025
Award(A)
Restricted Stock Units
Direct
12.6K shares-
INTC
INTEL CORP
May 6, 2025
Tax Payment(F)
Direct
2.2K shares at avg. $19.95$44K
INTC
INTEL CORP
May 6, 2025
Exercise(M)
Direct
7.4K shares-
INTC
INTEL CORP
May 6, 2025
Tax Payment(F)
Direct
1.2K shares at avg. $19.95$24K
INTC
INTEL CORP
May 6, 2025
Exercise(M)
Direct
4K shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Mar 29, 2025
Award(A)
Phantom Stock Units
Direct
75 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Dec 31, 2024
Award(A)
Phantom Stock Units
Direct
72 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Sep 28, 2024
Award(A)
Phantom Stock Units
Direct
61 shares-

		Type	Shares	Price		Ownership
Sep 26, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	56	-	-	Direct
Jun 27, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	73	-	-	Direct
May 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	499	-	$0	Direct
May 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	80	$451.79	$36,273	Direct
May 13, 2026	INTC INTEL CORP	Award(A) Restricted Stock Units	2,782	-	-	Direct
May 7, 2026	INTC INTEL CORP	Exercise(M)	12,552	-	$0	Direct
Dec 31, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	65	-	-	Direct
Sep 27, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	81	-	-	Direct
Jun 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	92	-	-	Direct
May 21, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	565	-	-	Direct
May 21, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	54	$398.28	$21,320	Direct
May 7, 2025	INTC INTEL CORP	Award(A) Restricted Stock Units	12,552	-	-	Direct
May 6, 2025	INTC INTEL CORP	Tax Payment(F)	2,221	$19.95	$44,309	Direct
May 6, 2025	INTC INTEL CORP	Exercise(M)	7,403	-	-	Direct
May 6, 2025	INTC INTEL CORP	Tax Payment(F)	1,189	$19.95	$23,721	Direct
May 6, 2025	INTC INTEL CORP	Exercise(M)	3,961	-	-	Direct
Mar 29, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	75	-	-	Direct
Dec 31, 2024	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	72	-	-	Direct
Sep 28, 2024	TMO THERMO FISHER SCIENTIFIC INC.	Award(A) Phantom Stock Units	61	-	-	Direct

1-19 of 19 transactions

About WEISLER DION J

WEISLER DION J (SEC CIK 0001580693) files insider reports with the SEC as Director of THERMO FISHER SCIENTIFIC INC. (TMO), Director of INTEL CORP (INTC) and Director of BHP Group Ltd (BHP).

Signal8 holds 14 ownership filings by WEISLER DION J (1 Form 3, 13 Form 4), filed between Oct 1, 2024 and Sep 29, 2026. Those filings report 19 transactions, from Sep 28, 2024 to Sep 26, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on WEISLER DION J's filings is in WALTHAM, MA.

Recent filings by WEISLER DION J

Sep 26, 2026: Grant or award of TMO derivative securities (Form 4, code A).
Jun 27, 2026: Grant or award of TMO derivative securities (Form 4, code A).
May 20, 2026: Grant or award of TMO shares (Form 4, code A).
May 20, 2026: Tax withholding of TMO shares (Form 4, code F).
May 13, 2026: Grant or award of INTC derivative securities (Form 4, code A).

Other insiders filing for THERMO FISHER SCIENTIFIC INC. (TMO)

SPERLING SCOTT M, Director
Britt Lisa P., Sr. VP and Chief HR Officer
Lynch Karen S, Director
Keith R. Alexandra, Director
JOHNSON JENNIFER M, Director
CASPER MARC N, Chairman & CEO

How to read Form 4 transaction codes