Thermo Fisher Scientific Inc. (TMO) — Insider Trading

Stock Price TMO 📉

TMO stock price — last 6 months

▲ = insider buy (0), ▼ = insider sell (52)

Data from Yahoo Finance, 15-min delay. Last update: 18/09/2026 (market close).

All Insider Transactions TMO — 2026

Holdings Summary

⚠️ Form 144 — Upcoming Sale Notices

Form 144 is filed BEFORE the actual sale. It is an important leading indicator.

Financial Context

Recent financial data from SEC filings (XBRL) to contextualize insider activity.

What is Insider Trading on Thermo Fisher Scientific Inc.?

Legal insider trading occurs when executives, directors, and major shareholders (>10%) of a public company buy or sell shares of their own company and report it to the SEC via Form 4.

How to Read the Data

Open market purchases (P) — the strongest signal. The insider uses their own money to buy shares.

Signals to Watch for TMO

• Cluster buying: multiple Thermo Fisher Scientific Inc. insiders buying in the same week → very bullish signal
• Excessive selling: selling volume above historical average → possible concern signal
• Form 144: filing of a sale notice → imminent sale in the coming days/weeks
• 10b5-1 Plan: pre-programmed sales are less significant than discretionary sales

Sources & References

All data on this page comes directly from public SEC filings.

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