Longfellow Investment Management CO LLC Merck & Co., Inc. Transaction History
Longfellow Investment Management CO LLC
- $409 Million
- Q3 2025
A detailed history of Longfellow Investment Management CO LLC transactions in Merck & Co., Inc. stock. As of the latest transaction made, Longfellow Investment Management CO LLC holds 19,376 shares of MRK stock, worth $1.8 Million. This represents 0.4% of its overall portfolio holdings.
Number of Shares
19,376
Previous 19,376
-0.0%
Holding current value
$1.8 Million
Previous $1.53 Million
6.07%
% of portfolio
0.4%
Previous 0.39%
Shares
11 transactions
Others Institutions Holding MRK
# of Institutions
3,877Shares Held
1.9BCall Options Held
30.1MPut Options Held
27.7M-
Vanguard Group Inc Valley Forge, PA252MShares$23.4 Billion0.33% of portfolio
-
Black Rock Inc. New York, NY207MShares$19.2 Billion0.59% of portfolio
-
State Street Corp Boston, MA118MShares$11 Billion0.35% of portfolio
-
Wellington Management Group LLP Boston, MA75.3MShares$6.99 Billion1.16% of portfolio
-
Geode Capital Management, LLC Boston, MA59.8MShares$5.55 Billion0.33% of portfolio
About Merck & Co., Inc.
- Ticker MRK
- Exchange NYSE
- Sector Healthcare
- Industry Drug Manufacturers—General
- Shares Outstandng 2,533,280,000
- Market Cap $235B
- Description
- Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, and diabetes, as well as vaccine products, ...