TMO

THERMO FISHER SCIENTIFIC INC.

NYSEIndustrialsMeasuring & Controlling Devices, NEC

Insider activity for last month from 09/19 to 10/19.

How these metrics are calculated

Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Total buying$00 buys
Total selling$00 sells
Net open-market+$0Buying minus selling
Active insiders5Distinct reporting owners

Insider activity report

Calendar-month buckets within the selected date range

Latest filing: Sep 29, 2026

Open-market transaction mix · 0 transactions in the selected period

Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.

View exact monthly counts and disclosed values
Monthly activity within the selected period; unknown values remain unknown.
MonthBuysSellsAwards (A)Buy valueSell valueNet P/S value
Sep 2026005$0$0$0
Oct 2026000$0$0$0

Distinct insiders active

Reporting-owner CIKs by month · peak Sep 2026 (5)
Sep 2026: 5 insidersOct 2026: 0 insiders
Sep 2026Oct 2026
5distinct insiders in selected period
Largest insider activity
By absolute net disclosed value · current transaction page
5 insiders

TMO transaction history

Newest filings · 20 transactions per page

Latest insider transactions

Form 4 filings from last month.
Newest company filings
CompanyInsiderActivityDisclosed valueFiled (ET)
TMOTHERMO FISHER SCIENTIFIC INC.
Weisler Dion JDIRA · grantDerivative securitySEC filing ↗UnknownView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Sperling Scott MDIRA · grantDerivative securitySEC filing ↗UnknownView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Lynch Karen SDIRA · grantDerivative securitySEC filing ↗UnknownView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Keith R. AlexandraDIRA · grantDerivative securitySEC filing ↗UnknownView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Johnson Jennifer MDIRA · grantDerivative securitySEC filing ↗UnknownView disclosure →

Filing-only signals

Deterministic matches in the selected period

Recent filing activity
Most recent 5 transactions on this page · color = transaction code

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale-
10b5-1 detected0
Amended rows0

Transaction codes

By Form 4 transaction code in selected period
5transactionstxns
  • A · Grants / awards · dominant5 · 100%

Activity by reported role

A joint filing can contribute to multiple roles
Director5

Reported Holdings After

Separated by insider, security, and ownership type

Johnson Jennifer MPhantom Stock Units · Direct
769769Sep 26, 2026Sep 26, 2026
768.52Sep 26, 2026
Keith R. AlexandraPhantom Stock Units · Direct
1.4k1.4kSep 26, 2026Sep 26, 2026
1,377.65Sep 26, 2026
Lynch Karen SPhantom Stock Units · Direct
399399Sep 26, 2026Sep 26, 2026
398.7Sep 26, 2026
Sperling Scott MPhantom Stock Units · Direct
17.7k17.7kSep 26, 2026Sep 26, 2026
17,737.6Sep 26, 2026
Weisler Dion JPhantom Stock Units · Direct
2.8k2.8kSep 26, 2026Sep 26, 2026
2,846.55Sep 26, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells red
1 active days
Sep 19 → Oct 19
LessMore

THERMO FISHER SCIENTIFIC INC. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at THERMO FISHER SCIENTIFIC INC.?

WEISLER DION J, SPERLING SCOTT M, Lynch Karen S, Keith R. Alexandra, JOHNSON JENNIFER M.

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

No code-S sale is available for this period.

What is the recent purchase and sale balance?

No code-P purchases or code-S sales were reported in the selected period.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.