// company-profile
Thermo Fisher Scientific Inc.
TMOExchangeNYSESectorMeasuring & Controlling Devices, NECInc.DEFilings278Insiders22
// api This Thermo Fisher Scientific Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Thermo Fisher Scientific Inc. insiders bought $0 (15 transactions) and sold $36K (1 transaction).
- Most active insider: WEISLER DION J with 3 transactions totaling $36K.
- Largest single sale: $185K by Pettiti Gianluca on Apr 27, 2026.
- 50% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Thermo Fisher Scientific Inc. as of 2026-03-31
Total reported AUM
$150.96B
QoQ change
-13.0%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$11.93B
24.3M shares
#2
STATE STREET CORP
CIK 93751
$8.23B
16.7M shares
#3
BlackRock, Inc.
CIK 2012383
$4.78B
9.7M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 20, 2026 | WEISLER DION J | TMO | Tax Withholding | 80.287 | $451.79 | $36K |
| May 20, 2026 | Jacks Tyler | TMO | Award | 499 | $0.00 | $0K |
| May 20, 2026 | CHANDY RUBY R | TMO | Award | 499 | $0.00 | $0K |
| May 20, 2026 | Lynch Karen S | TMO | Award | 499 | $0.00 | $0K |
| May 20, 2026 | Keith R. Alexandra | TMO | Award | 499 | $0.00 | $0K |
45 more transactions hidden
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