Marc N. Casper

CIK: 0001216055

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)269 (87.3%)

Position reduction

Option Exercises (M)26 (8.4%)

Derivative conversions

Awards (A)4 (1.3%)

Compensation grants

Other (G, F, J, C, D, …)9 (2.9%)

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

Companies & Roles (1)

TMO

THERMO FISHER SCIENTIFIC INC.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (308 total)

TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
725 shares at avg. $622.18$451K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
532 shares at avg. $622.18$331K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 24, 2026
Sale(S)
Direct
33 shares at avg. $626.59$21K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 24, 2026
Sale(S)
Direct
79 shares at avg. $628.01$50K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 24, 2026
Sale(S)
Direct
101 shares at avg. $625.41$63K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 24, 2026
Sale(S)
Direct
62 shares at avg. $628.74$39K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 24, 2026
Exercise(M)
Direct
275 shares at avg. $309.63$85K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Sale(S)
Direct
321 shares at avg. $629.10$202K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Sale(S)
Direct
3K shares at avg. $626.51$1.9M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Sale(S)
Direct
2.1K shares at avg. $628.61$1.3M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Sale(S)
Direct
1.8K shares at avg. $627.39$1.1M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Sale(S)
Direct
2.7K shares at avg. $625.46$1.7M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 21, 2026
Exercise(M)
Direct
10K shares at avg. $309.63$3.1M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
1.4K shares at avg. $632.01$904K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
80 shares at avg. $633.99$51K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
2.6K shares at avg. $628.82$1.6M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
1.3K shares at avg. $627.66$825K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
1.3K shares at avg. $629.85$787K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
909 shares at avg. $625.45$569K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
560 shares at avg. $632.94$354K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Exercise(M)
Direct
10K shares at avg. $309.63$3.1M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
821 shares at avg. $626.83$515K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 20, 2026
Sale(S)
Direct
1K shares at avg. $630.87$653K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 7, 2026
Sale(S)
Indirect
1K shares at avg. $584.41$605K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 7, 2026
Sale(S)
Direct
2 shares at avg. $579.27$1K

		Type	Shares	Price		Ownership
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	725	$622.18	$450,935	Direct
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	532	$622.18	$330,907	Direct
Aug 24, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	33	$626.59	$20,677	Direct
Aug 24, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	79	$628.01	$49,613	Direct
Aug 24, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	101	$625.41	$63,166	Direct
Aug 24, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	62	$628.74	$38,982	Direct
Aug 24, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	275	$309.63	$85,148	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	321	$629.10	$201,941	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	3,014	$626.51	$1,888,301	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	2,147	$628.61	$1,349,626	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,791	$627.39	$1,123,655	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	2,727	$625.46	$1,705,629	Direct
Aug 21, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	10,000	$309.63	$3,096,300	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,430	$632.01	$903,774	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	80	$633.99	$50,719	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	2,601	$628.82	$1,635,561	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,314	$627.66	$824,745	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,250	$629.85	$787,313	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	909	$625.45	$568,534	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	560	$632.94	$354,446	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	10,000	$309.63	$3,096,300	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	821	$626.83	$514,627	Direct
Aug 20, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,035	$630.87	$652,950	Direct
Aug 7, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,035	$584.41	$604,864	Indirect
Aug 7, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	2	$579.27	$1,159	Direct

1-25 of 308 transactions

…

About CASPER MARC N

CASPER MARC N (SEC CIK 0001216055) files insider reports with the SEC as Chairman & CEO of THERMO FISHER SCIENTIFIC INC. (TMO).

Signal8 holds 28 ownership filings by CASPER MARC N, all Form 4s, filed between Sep 5, 2024 and Sep 1, 2026. Those filings report 308 transactions, from Sep 3, 2024 to Aug 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on CASPER MARC N's filings is in WALTHAM, MA.

Recent filings by CASPER MARC N

Aug 28, 2026: Tax withholdings of TMO shares (2 lines, Form 4, code F).
Aug 24, 2026: Open-market sales of TMO shares (4 lines, Form 4, code S).
Aug 24, 2026: Option exercise of TMO shares (Form 4, code M).
Aug 21, 2026: Open-market sales of TMO shares (5 lines, Form 4, code S).
Aug 21, 2026: Option exercise of TMO shares (Form 4, code M).

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

SPERLING SCOTT M, Director
Britt Lisa P., Sr. VP and Chief HR Officer
WEISLER DION J, Director
Lynch Karen S, Director
Keith R. Alexandra, Director
JOHNSON JENNIFER M, Director

How to read Form 4 transaction codes