Insider trade

CEO sold ~$308K of TMO shares in the open market

Traded Aug 7, 2026 · Filed Aug 10, 2026

~$308K
Reported value · 522 sh @ $589.52: 612
Holds after · shares reported: +9.8%
stock since the trade · S&P 500 -1.2%, $594.00 → $652.51 on Oct 1

Why it stands out

The boss of Thermo Fisher Scientific sold $308K of Thermo Fisher Scientific shares. It was planned long ago, so it says very little.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Aug 7, 2026
Reporting period: Not applicable
Filed with the SEC: Aug 10, 2026

CEOIndirect holding$100K–$500KPre-arranged plan referenced

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$307,729

Shares × reported transaction price

Timing vs results

15 days after results of Jul 23, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $594.00 on Aug 7, 2026, 36% above its 52-week low and 7% below its high, after a 17% rise over the previous 30 trading days

52-week range $438.34 (May 15, 2026) to $639.45 (Jan 22, 2026), 77% of the way up, from 251 adjusted closes. 30 trading days earlier: $505.75 on Jun 25, 2026. Describes the past only, not a forecast

Planned / mechanical clue

Footnote references a pre-arranged trading plan (Rule 10b5-1)

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	-2.6%	-0.4%	-2.2%
30 days	-0.3%	-1.6%	+1.4%

Past results only. Not a forecast.

Source receipt

Record ID: 0001216055-26-000009
Filed / recorded: Aug 10, 2026, 8:09 PM UTC
Added to OQRO: Oct 2, 2026, 12:28 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: THERMO FISHER SCIENTIFIC INC.
Issuer CIK: 97745
Ticker: TMO
Reporting person: Marc N Casper
Relationship: Director, Officer
Officer title: Chairman & CEO
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Aug 7, 2026
Transaction code: S
Shares / units: 522
Price per share: $589.52
Acquired / disposed: Disposed (D)
Shares owned after: 612
Ownership form: Indirect — By Floral Park Associates, Inc.
Amendment: No

Footnotes from the filing

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 27, 2026.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $589.21 to $590.06, inclusive.