Merck & Co. Inc.
MRK | NYSE
$149.23
+$2.36 (+1.61%)
Sep 21, 2026, 11:51 AM ET · Market open
Institutional Ownership
Net OutflowTotal Institutions
3,904
Total Ownership
78.14%
Capital Flow
-$24.5B
Shares Change
-28.64M
Ownership Distribution
Institutions (78.14%)
Others (21.86%)
Institutional Sentiment
Overall: bullishEquity Sentiment & Activity
bullishNew Positions
326
Increased Positions
1,791
Reduced Positions
1,593
Closed Positions
180
New (326)
Increased (1,791)
Reduced (1,593)
Closed (180)
Options Sentiment & Activity
bullishPut/Call Ratio
0.819
Call Flow
24,390,216
Put Flow
19,979,468
Calls (55%)
Puts (45%)
Super Investors
| Super Investor / Fund | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Brandes Investment Partners LP | 0.08% -17.01% | 2.08% | 1.91M | 280.45M | |
| Kahn Brothers Group Inc | 0.02% +95.99% | 6.10% | 445.47K | 65.38M | |
| Gamco Investors Inc. Et Al | < 0.01% -3.24% | 0.09% | 62.67K | 9.2M |
Top Shareholders
| Institution | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 9.14% +4.32% | 0.47% +21.76% | 225.83M +3.07% | 27.17B +17.79% | |
| Vanguard Capital Management LLC | 6.51% +100.00% | 0.48% +100.00% | 160.99M +100.00% | 19.37B +100.00% | |
| State Street Corp | 4.83% +0.61% | 0.50% +16.78% | 119.33M -0.60% | 14.45B +13.47% |
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