Transactions
20
Insider / THERMO FISHER SCIENTIFIC INC.
Britt Lisa P.
Sr. VP and Chief HR Officer at THERMO FISHER SCIENTIFIC INC.
- Ticker
- TMO
- First filing on record
- November 10, 2025
- Latest trade on record
- August 28, 2026
- SEC filings
- EDGAR ↗
Britt Lisa P., Sr. VP and Chief HR Officer at THERMO FISHER SCIENTIFIC INC., has disclosed 20 transactions in TMO since November 10, 2025: 0 purchases (0 open-market buys) and 11 sales, worth about $26.0M at the reported prices. The latest was filed September 1, 2026, 4 days after the trade.
Open-market buys
0
Sales
11
Avg. disclosure lag
2.3d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Britt Lisa P. made no purchases and 11 sales worth $17M, plus 9 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Britt Lisa P. has traded 1 stock on record; the largest by dollars is TMO.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 7 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| F | Shares withheld for tax | 6 | 742 | $426K |
| M | Option exercise or conversion | 6 | 51,530 | $8.7M |
| S | Open-market sale | 5 | 28,573 | $16.9M |
| A | Grant or award | 3 | 7,184 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 15 | 0 | 8 · $10.8M |
| 2025 | 5 | 0 | 3 · $6.5M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| TMO | Sell F | August 28, 2026 | September 1, 2026 | 4d | 85 | $622 | $53K | Form 4 ↗ | ||
| TMO | Sell F | August 28, 2026 | September 1, 2026 | 4d | 105 | $622 | $66K | Form 4 ↗ | ||
| TMO | Sell F | August 28, 2026 | September 1, 2026 | 4d | 116 | $622 | $72K | Form 4 ↗ | ||
| TMO | Sell F | August 28, 2026 | September 1, 2026 | 4d | 87 | $622 | $54K | Form 4 ↗ | ||
| TMO | Option / conversion M | August 19, 2026 | August 20, 2026 | 1d | 11,440 | — | — | derivative | Form 4 ↗ | |
| TMO | Sell S | August 19, 2026 | August 20, 2026 | 1d | 11,440 | $613 | $7.0M | Form 4 ↗ | ||
| TMO | Option / conversion M | August 19, 2026 | August 20, 2026 | 1d | 11,440 | $418 | $4.8M | Form 4 ↗ | ||
| TMO | Option / conversion M | August 6, 2026 | August 7, 2026 | 1d | 5,850 | — | — | derivative | Form 4 ↗ | |
| TMO | Sell S | August 6, 2026 | August 7, 2026 | 1d | 5,850 | $580 | $3.4M | Form 4 ↗ | ||
| TMO | Option / conversion M | August 6, 2026 | August 7, 2026 | 1d | 5,850 | $310 | $1.8M | Form 4 ↗ | ||
| TMO | Sell F | February 28, 2026 | March 2, 2026 | 2d | 85 | $521 | $45K | Form 4 ↗ | ||
| TMO | Sell F | February 28, 2026 | March 2, 2026 | 2d | 263 | $521 | $137K | Form 4 ↗ | ||
| TMO | Other A | February 25, 2026 | February 27, 2026 | 2d | 5,139 | — | — | derivative | Form 4 ↗ | |
| TMO | Other A | February 25, 2026 | February 27, 2026 | 2d | 1,173 | — | — | Form 4 ↗ | ||
| TMO | Other A | February 25, 2026 | February 27, 2026 | 2d | 872 | — | — | Form 4 ↗ | ||
| TMO | Sell S | November 12, 2025 | November 14, 2025 | 2d | 1,058 | $588 | $622K | Form 4 ↗ | ||
| TMO | Option / conversion M | November 7, 2025 | November 10, 2025 | 3d | 8,475 | — | — | derivative | Form 4 ↗ | |
| TMO | Sell S | November 7, 2025 | November 10, 2025 | 3d | 8,475 | $572 | $4.8M | Form 4 ↗ | ||
| TMO | Option / conversion M | November 7, 2025 | November 10, 2025 | 3d | 8,475 | $254 | $2.2M | Form 4 ↗ | ||
| TMO | Sell S | November 7, 2025 | November 10, 2025 | 3d | 1,750 | $571 | $1000K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 1, 2026 | Form 4 | 0000097745-26-000161 | 4 | published | EDGAR ↗ |
| August 20, 2026 | Form 4 | 0000097745-26-000150 | 3 | published | EDGAR ↗ |
| August 7, 2026 | Form 4 | 0000097745-26-000146 | 3 | published | EDGAR ↗ |
| March 2, 2026 | Form 4 | 0000097745-26-000051 | 2 | published | EDGAR ↗ |
| February 27, 2026 | Form 4 | 0000097745-26-000035 | 3 | published | EDGAR ↗ |
| November 14, 2025 | Form 4 | 0000097745-25-000167 | 1 | published | EDGAR ↗ |
| November 10, 2025 | Form 4 | 0000097745-25-000161 | 4 | published | EDGAR ↗ |
Other insiders at THERMO FISHER SCIENTIFIC INC.
- CASPER MARC N Chairman & CEO 163 rows
- Pettiti Gianluca President & COO 24 rows
- Shafer Michael D Executive Vice President 23 rows
- Lagarde Michel Director 19 rows
- JOHNSON JENNIFER M Director 18 rows
- Lowery Frederick M. CEO 18 rows
- Holmes Joseph R. VP & Chief Accounting Officer 14 rows
- Keith R. Alexandra Director 9 rows
- WEISLER DION J Director 9 rows
- Williamson Stephen Director 9 rows
Everyone on file, with contracts and lobbying under the company's name: THERMO FISHER SCIENTIFIC INC..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 7 | 20 | November 10, 2025 | September 1, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.