SEC Form 4
Thermo Fisher Scientific, Inc. (TMO) insider trading
In the 12 months to Oct 24, 2026, 7 TMO insiders reported open-market sales of $158.1M across 26 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $158.1M
- 26 filings · 7 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 18 of 26
- $89.7M of $158.1M sold (57%)
Who traded TMO, and when
- Sale
- Sale, pre-arranged (10b5-1)
TMO daily close from Oct 24, 2025 to Oct 23, 2026, between $438.34 and $696.49, last $673.82. 26 sale and 0 purchase filings by 7 insiders, marked at their filing dates. Marc N. Casper, Chairman & CEO: sold $53.9M across 8 filings, first filed Oct 28, 2025, last Aug 26, 2026. Michel Lagarde, Executive Vice President & COO: sold $51.3M across 3 filings, first filed Nov 14, 2025, last Dec 5, 2025. Michael D. Shafer, Executive Vice President: sold $22.5M across 3 filings, first filed Nov 26, 2025, last Aug 13, 2026. Lisa P. Britt, Sr. VP and Chief HR Officer: sold $16.9M across 4 filings, first filed Nov 10, 2025, last Aug 20, 2026. Frederick M. Lowery, Executive Vice President: sold $8.2M across 1 filing, first filed Dec 3, 2025, last Dec 3, 2025. Gianluca Pettiti, Executive Vice President → President & COO: sold $5.1M across 6 filings, first filed Oct 28, 2025, last Sep 1, 2026. Joseph R. Holmes, VP & Chief Accounting Officer: sold $245.6K across 1 filing, first filed Aug 10, 2026, last Aug 10, 2026.
Largest mark · tap a row for others
Michel Lagarde · Executive Vice President & COO
Filing 1 of 2 within a week · $48,550,370 total
Sale $36,126,126
62,000 shares at $582.68 avg
Filed Dec 4, 2025 · traded Dec 2
Close on filing date $575.24
Marc N. Casper · Chairman & CEO
Chairman & CEO
$53.9M soldMichel Lagarde · Executive Vice President & COO
Executive Vice President & COO
$51.3M soldMichael D. Shafer · Executive Vice President
Executive Vice President
$22.5M soldLisa P. Britt · Sr. VP and Chief HR Officer
Sr. VP and Chief HR Officer
$16.9M soldFrederick M. Lowery · Executive Vice President
Executive Vice President
$8.2M soldGianluca Pettiti · Executive Vice President → President & COO
Executive Vice President → President & COO
$5.1M soldJoseph R. Holmes · VP & Chief Accounting Officer
VP & Chief Accounting Officer
$245.6K soldHas Thermo Fisher Scientific, Inc.'s CEO sold stock?
Yes. Marc N. Casper (CEO) sold 93,512 shares ($53.9M) between Oct 2025 and Aug 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
26 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Marc N. Casper | Chairman & CEO | $53.9M | — | 8 | 100% of sales | |
| Michel Lagarde | Executive Vice President & COO | $51.3M | — | 3 | — | |
| Michael D. Shafer | Executive Vice President | $22.5M | — | 3 | 100% of sales | |
| Lisa P. Britt | Sr. VP and Chief HR Officer | $16.9M | — | 4 | — | |
| Frederick M. Lowery | Executive Vice President | $8.2M | — | 1 | 100% of sales | |
| Gianluca Pettiti | Executive Vice President → President & COO | $5.1M | — | 6 | 100% of sales | |
| Joseph R. Holmes | VP & Chief Accounting Officer | $245.6K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Gianluca Pettiti President & COO | SalePre-arranged (10b5-1) | 4,133 | $614.38 | $2.5M | 23,216 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 275 | $627.05 | $172.4K | 123,925 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 20,000 | $628.09 | $12.6M | 131,198 | |
traded | Lisa P. Britt Sr. VP and Chief HR Officer | Sale | 11,440 | $613.12 | $7.0M | 14,784 | |
traded | Michael D. Shafer Executive Vice President | SalePre-arranged (10b5-1) | 25,500 | $600.00 | $15.3M | 20,994 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 4,883 | $586.12 | $2.9M | Multiple accounts | |
traded | Joseph R. Holmes VP & Chief Accounting Officer | Sale | 420 | $584.81 | $245.6K | 2,966 | |
traded | Lisa P. Britt Sr. VP and Chief HR Officer | Sale | 5,850 | $580.00 | $3.4M | 14,784 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 15,000 | $575.23 | $8.6M | Multiple accounts | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 15,000 | $574.46 | $8.6M | Multiple accounts | |
traded | Gianluca Pettiti President & COO | SalePre-arranged (10b5-1) | 400 | $565.00 | $226.0K | 24,651 | |
traded | Gianluca Pettiti President & COO | SalePre-arranged (10b5-1) | 400 | $462.66 | $185.1K | 25,051 | |
traded | Michael D. Shafer Executive Vice President | SalePre-arranged (10b5-1) | 1,607 | $499.40 | $802.5K | 20,950 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 4,000 | $514.82 | $2.1M | 127,688 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 10,000 | $507.75 | $5.1M | 123,925 | |
traded | Gianluca Pettiti Executive Vice President | SalePre-arranged (10b5-1) | 400 | $541.20 | $216.5K | 20,752 | |
traded | Michel Lagarde Executive Vice President & COO | Sale | 22,046 | $563.56 | $12.4M | 84,117 | |
traded | Michel Lagarde Executive Vice President & COO | Sale | 62,000 | $582.68 | $36.1M | 68,001 | |
traded | Frederick M. Lowery Executive Vice President | SalePre-arranged (10b5-1) | 13,825 | $589.81 | $8.2M | 14,367 | |
traded | Michael D. Shafer Executive Vice President | SalePre-arranged (10b5-1) | 10,725 | $600.00 | $6.4M | 18,731 | |
traded | Michel Lagarde Executive Vice President & COO | Sale | 4,638 | $594.42 | $2.8M | 23,480 | |
traded | Lisa P. Britt Sr. VP and Chief HR Officer | Sale | 1,058 | $588.27 | $622.1K | 13,087 | |
traded | Gianluca Pettiti Executive Vice President | SalePre-arranged (10b5-1) | 2,975 | $580.00 | $1.7M | 21,152 | |
traded | Lisa P. Britt Sr. VP and Chief HR Officer | Sale | 10,225 | $571.62 | $5.8M | 14,145 | |
traded | Marc N. Casper Chairman & CEO | SalePre-arranged (10b5-1) | 24,354 | $571.33 | $13.9M | 114,838 | |
traded | Gianluca Pettiti Executive Vice President | SalePre-arranged (10b5-1) | 400 | $574.15 | $229.7K | 21,152 |
GET /stocks/filings/vX/form-4?tickers=TMO&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"TMO"
],
"issuer_cik": "0000097745",
"owner_cik": "0001844600",
"accession_number": "0000097745-26-000162",
"form_type": "4",
"filing_date": "2026-09-01",
"period_of_report": "2026-08-28",
"issuer_name": "THERMO FISHER SCIENTIFIC INC.",
"issuer_trading_symbol": "TMO",
"owner_name": "Pettiti Gianluca",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President & COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-08-31",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 3733,
"transaction_price_per_share": 614.38,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 23216.14,
"transaction_value": 2293480.54,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026."
}
]
},
{
"tickers": [
"TMO"
],
"issuer_cik": "0000097745",
"owner_cik": "0001844600",
"accession_number": "0000097745-26-000162",
"form_type": "4",
"filing_date": "2026-09-01",
"period_of_report": "2026-08-28",
"issuer_name": "THERMO FISHER SCIENTIFIC INC.",
"issuer_trading_symbol": "TMO",
"owner_name": "Pettiti Gianluca",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President & COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-08-31",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 400,
"transaction_price_per_share": 614.38,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 23216.14,
"transaction_value": 245752,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2026."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 102 records
- Option exercises29 records
- Tax withholding47 records
- Grants and awards24 records
- Gifts2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for TMO every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.