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MRK
NYSE Life Sciences

First Keytruda Biosimilar Accepted for FDA Review, Threatening Merck's Blockbuster

Tom Rudovsky · Reported by Reuters
More coverage: Pharmaceutical Stocks · Healthcare
Sentiment info
Negative
Importance info
7
Price
$145.661
Mkt Cap
$358.85B
52W Low
$82.01
52W High
$156.92
52W Position info
78% above low
Off High info
7.2% below high
Rel. Volume info
0.8× avg
Market data snapshot near publication time

MRK sits 78% above its 52-week low of $82.01.

Summary

Formycon and Zydus announced that FYB206, a biosimilar of Merck's Keytruda, has been accepted for review by the FDA. This is the first publicly announced Keytruda biosimilar to reach this stage. Keytruda is Merck's top-selling drug, generating billions in annual revenue, and biosimilar competition could erode its market share. The acceptance does not guarantee approval, but it marks a significant regulatory milestone for competitors. Merck's recent timeline shows strong Keytruda performance, including new approvals and formulations, but this development introduces a new competitive threat.

At the time of this announcement, MRK was trading at $145.66 on NYSE in the Life Sciences sector, with a market capitalization of approximately $358.9B. The 52-week trading range was $82.01 to $156.92. This news item was assessed with negative market sentiment and an importance score of 7 out of 10. Source: Reuters.


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MRK - Latest Insights

MRK
Oct 12, 2026, 7:00 AM EDT
Source: Wiseek News
Importance Score:
7
Price at Filing: $145.60
Real-time Price: $145.66 info
Change: +$0.0608 (+0.04%) info
Market Cap: $358.85B info
MRK
Sep 30, 2026, 8:15 AM EDT
Source: BusinessWire
Importance Score:
8
Price at Filing: $149.81
Real-time Price: $145.66 info
Change: -$4.14 (-3%) info
Market Cap: $358.85B info
MRK
Sep 28, 2026, 6:45 AM EDT
Source: BusinessWire
Importance Score:
9
Price at Filing: $149.00
Real-time Price: $145.66 info
Change: -$3.34 (-2%) info
Market Cap: $358.85B info
MRK
Sep 25, 2026, 4:30 PM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $148.75
Real-time Price: $145.66 info
Change: -$3.09 (-2%) info
Market Cap: $358.85B info
MRK
Sep 24, 2026, 3:21 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $149.05
Real-time Price: $145.66 info
Change: -$3.39 (-2%) info
Market Cap: $358.85B info