Lisa P. Britt

CIK: 0001676320

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)6 (24.0%)

Position reduction

Option Exercises (M)3 (12.0%)

Derivative conversions

Awards (A)4 (16.0%)

Compensation grants

Other (G, F, J, C, D, …)12 (48.0%)

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

Companies & Roles (1)

TMO

THERMO FISHER SCIENTIFIC INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (25 total)

TMO
THERMO FISHER SCIENTIFIC INC.
Oct 28, 2026
Sale(S)
Direct
2.8K shares at avg. $706.45$2.0M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
85 shares at avg. $622.18$53K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
87 shares at avg. $622.18$54K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
116 shares at avg. $622.18$72K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2026
Tax Payment(F)
Direct
105 shares at avg. $622.18$66K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 19, 2026
Exercise(M)
Direct
11.4K shares at avg. $418.32$4.8M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 19, 2026
Sale(S)
Direct
11.4K shares at avg. $613.12$7.0M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 6, 2026
Exercise(M)
Direct
5.9K shares at avg. $309.63$1.8M
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 6, 2026
Sale(S)
Direct
5.9K shares at avg. $580.00$3.4M
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 28, 2026
Tax Payment(F)
Direct
263 shares at avg. $521.11$137K
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 28, 2026
Tax Payment(F)
Direct
85 shares at avg. $521.11$45K
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 25, 2026
Award(A)
Direct
1.2K shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 25, 2026
Award(A)
Direct
872 shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Nov 12, 2025
Sale(S)
Direct
1.1K shares at avg. $588.26$622K
TMO
THERMO FISHER SCIENTIFIC INC.
Nov 7, 2025
Sale(S)
Direct
8.5K shares at avg. $571.67$4.8M
TMO
THERMO FISHER SCIENTIFIC INC.
Nov 7, 2025
Exercise(M)
Direct
8.5K shares at avg. $253.99$2.2M
TMO
THERMO FISHER SCIENTIFIC INC.
Nov 7, 2025
Sale(S)
Direct
1.8K shares at avg. $571.40$1000K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2025
Tax Payment(F)
Direct
81 shares at avg. $489.74$40K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2025
Tax Payment(F)
Direct
97 shares at avg. $489.74$47K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2025
Tax Payment(F)
Direct
63 shares at avg. $489.74$31K
TMO
THERMO FISHER SCIENTIFIC INC.
Aug 28, 2025
Tax Payment(F)
Direct
88 shares at avg. $489.74$43K
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 28, 2025
Tax Payment(F)
Direct
141 shares at avg. $528.96$74K
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 28, 2025
Tax Payment(F)
Direct
255 shares at avg. $528.96$135K
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 19, 2025
Award(A)
Direct
2.6K shares-
TMO
THERMO FISHER SCIENTIFIC INC.
Feb 19, 2025
Award(A)
Direct
871 shares-

		Type	Shares	Price		Ownership
Oct 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	2,831	$706.45	$1,999,960	Direct
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	85	$622.18	$52,945	Direct
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	87	$622.18	$54,148	Direct
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	116	$622.18	$72,198	Direct
Aug 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	105	$622.18	$65,580	Direct
Aug 19, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	11,440	$418.32	$4,785,581	Direct
Aug 19, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	11,440	$613.12	$7,014,093	Direct
Aug 6, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	5,850	$309.63	$1,811,336	Direct
Aug 6, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	5,850	$580.00	$3,393,000	Direct
Feb 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	263	$521.11	$136,880	Direct
Feb 28, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	85	$521.11	$44,507	Direct
Feb 25, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	1,173	-	$0	Direct
Feb 25, 2026	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	872	-	$0	Direct
Nov 12, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,058	$588.26	$622,136	Direct
Nov 7, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	8,475	$571.67	$4,844,904	Direct
Nov 7, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Exercise(M)	8,475	$253.99	$2,152,565	Direct
Nov 7, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Sale(S)	1,750	$571.40	$999,946	Direct
Aug 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	81	$489.74	$39,781	Direct
Aug 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	97	$489.74	$47,358	Direct
Aug 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	63	$489.74	$31,020	Direct
Aug 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	88	$489.74	$42,859	Direct
Feb 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	141	$528.96	$74,396	Direct
Feb 28, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Tax Payment(F)	255	$528.96	$135,068	Direct
Feb 19, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	2,611	-	-	Direct
Feb 19, 2025	TMO THERMO FISHER SCIENTIFIC INC.	Award(A)	871	-	-	Direct

1-25 of 25 transactions

About Britt Lisa P.

Britt Lisa P. (SEC CIK 0001676320) files insider reports with the SEC as Sr. VP and Chief HR Officer of THERMO FISHER SCIENTIFIC INC. (TMO).

Signal8 holds 11 ownership filings by Britt Lisa P., all Form 4s, filed between Feb 21, 2025 and Oct 30, 2026. Those filings report 25 transactions, from Feb 19, 2025 to Oct 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Britt Lisa P.'s filings is in WALTHAM, MA.

Recent filings by Britt Lisa P.

Oct 28, 2026: Open-market sale of TMO shares (Form 4, code S).
Aug 28, 2026: Tax withholdings of TMO shares (4 lines, Form 4, code F).
Aug 19, 2026: Option exercise of TMO shares (Form 4, code M).
Aug 19, 2026: Open-market sale of TMO shares (Form 4, code S).
Aug 6, 2026: Option exercise of TMO shares (Form 4, code M).

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

SPERLING SCOTT M, Director
WEISLER DION J, Director
Lynch Karen S, Director
Keith R. Alexandra, Director
JOHNSON JENNIFER M, Director
CASPER MARC N, Chairman & CEO

How to read Form 4 transaction codes