Back to Dashboard
MRK · Healthcare

MERCK & CO INC

USA Healthcare Filing: 2026-03-31
Smart-money confidence · 1 of 3 sources firing
Weak — few signals

No standout activity across the feeds we track.

Hedge funds
44
Congress
0
Insiders
50
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Limited info. MERCK & CO INC is not currently in our model portfolio, but 8 tracked investors hold it. We're showing what we know from their latest 13F filings.
Market cap
$314.9B
Industry
Drug Manufacturers - General
Exchange
NYSE
Merck & Co., Inc. operates as a healthcare company worldwide. It offers human health pharmaceutical for various areas under the Keytruda, Keytruda Qlex, Welireg, Gardasil, ProQuad, M-M-R II, Varivax, Vaxneuvance, Capvaxive, RotaTeq, Pneumovax 23, Bridion, Prevymis, Dificid, Zerbaxa, Winrevair, Adempas/ Verquvo, Ohtuvayre, Lagevrio, Isentress/Isentress HD, Delstrigo, Pifeltro, Belsomra, Januvia, and Janumet brands. The company also provides veterinary pharmaceuticals, vaccines and health management solutions and services, such as livestock products under the Nuflor, Bovilis/Vista, Bovilis…
8
Investors
0
New positions
4
Increasing
2
Decreasing
2
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
AQR Capital Management
Trust weight: 1.0×
Increased +6%
% of portfolio
0.6%
Position change
+6%
0.6% of AQR Capital Management's portfolio
Millennium Management (Englander)
Trust weight: 1.0×
Increased +791%
% of portfolio
0.5%
Position change
+791%
0.5% of Millennium Management's portfolio
Citadel Advisors
Trust weight: 1.0×
Increased +605%
% of portfolio
0.5%
Position change
+605%
0.5% of Citadel Advisors's portfolio
Point72 (Steve Cohen)
Trust weight: 1.1×
Increased +6%
% of portfolio
0.2%
Position change
+6%
0.2% of Point72's portfolio
D.E. Shaw & Co
Trust weight: 1.0×
Unchanged
% of portfolio
0.3%
Position change
—
0.3% of D.E. Shaw & Co's portfolio
Polen Capital Management
Trust weight: 1.3×
Unchanged
% of portfolio
0.3%
Position change
—
0.3% of Polen Capital Management's portfolio
Gotham Asset Mgmt (Greenblatt)
Trust weight: 1.1×
Decreased −24%
% of portfolio
0.2%
Position change
−24%
0.2% of Gotham Asset Mgmt's portfolio
Bridgewater Associates (Dalio)
Trust weight: 1.3×
Decreased −40%
% of portfolio
0.1%
Position change
−40%
0.1% of Bridgewater Associates's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to MERCK & CO INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell MERCK & CO INC or any security.

Get the Weekly Update

Every Sunday, we'll send you what Buffett, Dalio, Ackman and 47 other legendary investors are buying — free, straight from their SEC filings.
Free forever · No spam · Unsubscribe anytime
© 2026 Bogen Capital  ·  Not financial advice  ·  Data delayed up to 135 days Methodology  ·  Contact  ·  API