Thermo Fisher Scientific Inc. — SEC Form 4 Filings
SEC Form 4 Data
Track insider buying and selling activity for Thermo Fisher Scientific Inc. (TMO). Data sourced from SEC EDGAR Form 4 filings and analyzed by StoxPulse AI for significance.
1
$1.2M total
19
$4.2M total
0.1x
Bearish Signal
20
Form 4 transactions
Buy − Sell value
Sale · Aug 31, 2026
Pettiti · Sale
Thermo Fisher Scientific Inc. insiders filed 20 Form 4 transactions in the period analyzed: 1 purchase totaling $1.2M and 19 sales totaling $4.2M. That puts the buy-to-sell ratio at 0.05, which we read as bearish on a directional basis.
The most active filer was Meyer James with 5 transactions in this window. 20 of the 20 filings are flagged as routine — typically 10b5-1 scheduled trades rather than discretionary signals.
Form 4 filings are point-in-time disclosures and do not constitute investment advice. Routine sales under pre-arranged 10b5-1 plans should not be read as bearish.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Pettiti Gianluca | President & COO | Sale | 400 | $614.38 | $246K | 2026-08-31 |
| Pettiti Gianluca | President & COO | Buy | 3,733 | $309.63 | $1.2M | 2026-08-31 |
| Pettiti Gianluca | President & COO | Sale | 3,733 | $614.38 | $2.3M | 2026-08-31 |
| CASPER MARC N | Chairman & CEO | Sale | 724.766 | $622.18 | $451K | 2026-08-28 |
| CASPER MARC N | Chairman & CEO | Sale | 531.851 | $622.18 | $331K | 2026-08-28 |
| Meyer James | Sr. Vice President & CFO | Sale | 37.23 | $622.18 | $23K | 2026-08-28 |
| Meyer James | Sr. Vice President & CFO | Sale | 44.483 | $622.18 | $28K | 2026-08-28 |
| Meyer James | Sr. Vice President & CFO | Sale | 19.824 | $622.18 | $12K | 2026-08-28 |
| Meyer James | Sr. Vice President & CFO | Sale | 55.12 | $622.18 | $34K | 2026-08-28 |
| Meyer James | Sr. Vice President & CFO | Sale | 113.623 | $622.18 | $71K | 2026-08-28 |
| Shropshire Thomas B Jr. | SVP and General Counsel | Sale | 49.024 | $622.18 | $31K | 2026-08-28 |
| Shafer Michael D | Executive Vice President | Sale | 162.457 | $622.18 | $101K | 2026-08-28 |
| Shafer Michael D | Executive Vice President | Sale | 210.806 | $622.18 | $131K | 2026-08-28 |
| Shafer Michael D | Executive Vice President | Sale | 189.533 | $622.18 | $118K | 2026-08-28 |
| Shafer Michael D | Executive Vice President | Sale | 227.245 | $622.18 | $141K | 2026-08-28 |
| Holmes Joseph R. | VP & Chief Accounting Officer | Sale | 10.567 | $622.18 | $7K | 2026-08-28 |
| Holmes Joseph R. | VP & Chief Accounting Officer | Sale | 12.915 | $622.18 | $8K | 2026-08-28 |
| Holmes Joseph R. | VP & Chief Accounting Officer | Sale | 11.447 | $622.18 | $7K | 2026-08-28 |
| Holmes Joseph R. | VP & Chief Accounting Officer | Sale | 14.97 | $622.18 | $9K | 2026-08-28 |
| Pettiti Gianluca | President & COO | Sale | 212.256 | $622.18 | $132K | 2026-08-28 |
Insider trading data for Thermo Fisher Scientific Inc. (TMO) is sourced directly from SEC Form 4 filings on the EDGAR database. Corporate insiders — including directors, officers, and shareholders owning more than 10% of the company — are legally required to report their transactions within two business days.
Insider purchases are often considered a bullish signal because executives are using their own money to buy shares, suggesting they believe the stock is undervalued. Insider sales, on the other hand, are more nuanced — they can reflect routine diversification plans (known as 10b5-1 plans), tax obligations, or genuine concerns about the company's outlook.
StoxPulse's AI system analyzes each TMO insider transaction to determine whether it appears routine or notable. We track the buy/sell ratio, total transaction values, and patterns over time to provide a clear picture of insider sentiment for Thermo Fisher Scientific Inc..
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Disclaimer: Insider trading data for Thermo Fisher Scientific Inc. (TMO) is sourced from SEC Form 4 filings and is provided for informational purposes only. Insider transactions should not be the sole basis for investment decisions. Always consult a qualified financial advisor.
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