Thermo Fisher slides as investors weigh soft organic growth and weaker diagnostic/instrument trends despite Q1 beat

Thermo Fisher Scientific (TMO) is down 8.1% today. Here is some analysis on what might have caused this price movement.

Analysis: Thermo Fisher’s Q1 results beat expectations, but the market appears to be focusing on the quality of growth: organic revenue grew just 1% and some segments showed muted demand. Weakness in specialty diagnostics and flat analytical instruments revenue may have reinforced concerns about the timing of an end-market recovery, outweighing the headline beat and higher full-year outlook.

Details:

Thermo Fisher posted Q1 revenue of $11.01 billion (+6% year over year) with organic revenue growth of 1%.

Adjusted EPS for the quarter was $5.44 (+6% year over year), while adjusted operating margin was 21.8% versus 21.9% a year ago.

Analytical instruments revenue was flat at $1.72 billion, a softer spot relative to areas that benefited from biopharma services and lab products demand.

Specialty diagnostics revenue dipped about 0.5% to $1.14 billion, which some market participants tied to a lighter respiratory season and broader uncertainty in demand drivers.

Sources:

Thermo Fisher Scientific Investor Relations, Reuters, The Motley Fool

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$TMO Insider Trading Activity

$TMO insiders have traded $TMO stock on the open market 66 times in the past 6 months. Of those trades, 0 have been purchases and 66 have been sales.

Here’s a breakdown of recent trading of $TMO stock by insiders over the last 6 months:

MICHEL LAGARDE (Executive Vice President & COO) has made 0 purchases and 5 sales selling 88,684 shares for an estimated $51,307,290.
MARC N CASPER (Chairman & CEO) has made 0 purchases and 49 sales selling 38,354 shares for an estimated $21,050,853.
FREDERICK M. LOWERY (Executive Vice President) has made 0 purchases and 2 sales selling 13,825 shares for an estimated $8,154,131.
MICHAEL D SHAFER (Executive Vice President) has made 0 purchases and 3 sales selling 12,332 shares for an estimated $7,237,535.
LISA P. BRITT (Sr. VP and Chief HR Officer) has made 0 purchases and 3 sales selling 11,282 shares for an estimated $6,466,985.
GIANLUCA PETTITI (Executive Vice President) has made 0 purchases and 4 sales selling 3,775 shares for an estimated $2,171,640.

To track insider transactions, check out Quiver Quantitative's insider trading dashboard.

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$TMO Hedge Fund Activity

We have seen 1,134 institutional investors add shares of $TMO stock to their portfolio, and 1,216 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

J. STERN & CO. LLP added 31,455,105 shares (+58006.4%) to their portfolio in Q4 2025, for an estimated $18,226,660,592
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC removed 7,231,281 shares (-74.9%) from their portfolio in Q4 2025, for an estimated $4,190,165,775
AUTO-OWNERS INSURANCE CO removed 2,423,706 shares (-99.8%) from their portfolio in Q1 2026, for an estimated $1,169,377,552
FMR LLC added 2,199,538 shares (+29.0%) to their portfolio in Q4 2025, for an estimated $1,274,522,294
ROCKEFELLER CAPITAL MANAGEMENT L.P. added 2,147,137 shares (+633.6%) to their portfolio in Q4 2025, for an estimated $1,244,158,534
ROYAL BANK OF CANADA added 1,313,517 shares (+48.2%) to their portfolio in Q4 2025, for an estimated $761,117,425
PRICE T ROWE ASSOCIATES INC /MD/ added 1,230,872 shares (+19.0%) to their portfolio in Q4 2025, for an estimated $713,228,780

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.

$TMO Government Contracts

We have seen $109,709,035 of award payments to $TMO over the last year.

Here are some of the awards which we have have seen pay out the most over the last year:

FUNDING DOCUMENT FOR OY3. CONSUMABLES AND REAGENTS.: $21,465,980
ADDITIONAL FUNDS FOR OPTION YEAR TWO.: $20,000,000
MAINTENANCE OF THERMO FISHER SCIENTIFIC MASS SPECTROMETERS: $2,394,259
PLASMA-FOCUSED ION BEAM SCANNING ELECTRON MICROSCOPE (FIB-SEM): $1,800,000
LAB EQUIPMENT MAINTENANCE AGREEMENT: $1,717,443

To track government contracts to publicy traded companies, check out Quiver Quantitative's government contracts dashboard.

$TMO Congressional Stock Trading

Members of Congress have traded $TMO stock 3 times in the past 6 months. Of those trades, 1 have been purchases and 2 have been sales.

Here’s a breakdown of recent trading of $TMO stock by members of Congress over the last 6 months:

REPRESENTATIVE LISA C. MCCLAIN has traded it 3 times. They made 1 purchase worth up to $15,000 on 10/30 and 2 sales worth up to $30,000 on 10/31, 10/30.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.

$TMO Analyst Ratings

Wall Street analysts have issued reports on $TMO in the last several months. We have seen 6 firms issue buy ratings on the stock, and 0 firms issue sell ratings.

Here are some recent analyst ratings:

Barclays issued a "Overweight" rating on 01/30/2026
Citigroup issued a "Buy" rating on 12/11/2025
Goldman Sachs issued a "Buy" rating on 12/09/2025
HSBC issued a "Buy" rating on 12/01/2025
Argus Research issued a "Buy" rating on 10/29/2025
Morgan Stanley issued a "Overweight" rating on 10/28/2025

To track analyst ratings and price targets for $TMO, check out Quiver Quantitative's $TMO forecast page.

$TMO Price Targets

Multiple analysts have issued price targets for $TMO recently. We have seen 11 analysts offer price targets for $TMO in the last 6 months, with a median target of $675.0.

Here are some recent targets:

Luke Sergott from Barclays set a target price of $625.0 on 04/14/2026
Vijay Kumar from Evercore ISI Group set a target price of $575.0 on 04/06/2026
Dan Brennan from TD Cowen set a target price of $683.0 on 01/30/2026
Patrick Donnelly from Citigroup set a target price of $685.0 on 01/30/2026
Daniel Arias from Stifel set a target price of $700.0 on 01/09/2026
Brandon Couillard from Wells Fargo set a target price of $675.0 on 12/15/2025
Evie Koslosky from Goldman Sachs set a target price of $685.0 on 12/09/2025

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.