Do not read bearish signal into these sales. At a mega-cap, such routine insider selling is common and non-informative. Continue monitoring for any material corporate events (e.g., earnings, M&A) that might warrant a directional view.
Price Chart
Executive Summary
Three insiders at Thermo Fisher Scientific (TMO) sold shares totaling $4.22M over a one-week window, including Chairman/CEO Marc Casper ($1.56M) and Chief HR Officer Lisa Britt ($3.39M). Relative to TMO's $219.6B market cap, the sales represent just 0.002% and are economically trivial. The selling appears routine (liquidity-driven) and carries no material signal for the stock.
Key Financial Metrics
Key Facts
- CEO Marc Casper sold ~$1.56M in open-market transactions between Aug 6-7, 2026.
- Sr. VP & Chief HR Officer Lisa Britt sold $3.39M on Aug 6, 2026.
- VP & Chief Accounting Officer Holmes sold $246K on Aug 7, 2026.
- Total insider sales of $4.22M represent ~0.002% of TMO's $219.6B market cap.
- Multiple small-lot sales by the CEO suggest scheduled or liquidity-driven selling, not a negative signal.
Financial Impact
Insider selling of $4.22M versus a $219.6B market cap — negligible economic impact.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-TMO-1786392600682 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 1, 2026 4w ago | Insider Cluster | $600.50 $675.05 | ▲ +12.41% | ▲ +12.30% | $652.51 (+8.66%) |
Aug 26, 2026 5w ago | Insider Cluster | $630.70 $666.33 | ▲ +5.65% | ▲ +5.75% | $652.51 (+3.46%) |
Aug 24, 2026 5w ago | Insider Cluster | $628.74 $658.52 | ▲ +4.74% | ▲ +3.42% | $652.51 (+3.78%) |
Aug 18, 2026 6w ago | Court Ruling | $589.04 $648.43 | ▲ +10.08% | ▲ +11.39% | $652.51 (+10.78%) |
Aug 13, 2026 7w ago | Insider Cluster | $588.29 $613.62 | ▲ +4.31% | ▲ +6.30% | $652.51 (+10.92%) |
Aug 10, 2026 7w ago | Insider Cluster | $605.00 $605.69 | ▲ +0.11% | ▲ +1.17% | $652.51 (+7.85%) |
Aug 7, 2026 8w ago | Insider Cluster | $594.00 $613.78 | ▲ +3.33% | ▲ +3.73% | $652.51 (+9.85%) |
Jul 23, 2026 10w ago | 8-K | $572.32 $627.55 | ▲ +9.65% | ▲ +6.34% | $652.51 (+14.01%) |
Jun 11, 2026 16w ago | ANALYST-UPGRADE | $469.34 $527.05 | ▲ +12.30% | ▲ +10.52% | $652.51 (+39.03%) |
Jun 11, 2026 16w ago | Institutional Cluster | $475.66 $524.71 | ▲ +10.31% | ▲ +8.42% | $652.51 (+37.18%) |
US Market Status
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