13FBOX
MERCK & CO INC · 13F Institutional Holdings
Options Calculator Rankings

MERCK & CO INC

MRK
Institutions
3852
Combined AUM (Q2 2026)
$260.68B
Combined Shares (Q2 2026)
2.02B
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+110.7M
1869 · 281 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-92.5M
1636 · 172 Exit · ≈
⚖️ Net
+18.2M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$260.68B
Institutions
3852
New Buys
281
Adds
1588
Reduces
1464
Exits
172
Unchanged
519
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
BlackRock, Inc.
0.43%0.47%#1089$29.17B227.0M$27.18B225.9M+1.1M+0.48%Add
VANGUARD CAPITAL MANAGEMENT LLC
0.44%0.48%#1060$20.73B161.3M$19.37B161.0M+335,550+0.21%Add
STATE STREET CORP
0.46%0.5%#999$15.57B120.4M$14.45B119.3M+1.1M+0.91%Add
WELLINGTON MANAGEMENT GROUP LLP
1.91%1.89%#140$11.08B86.2M$10.14B84.3M+1.9M+2.29%Add
VANGUARD PORTFOLIO MANAGEMENT LLC
0.39%0.43%#1190$8.70B67.7M$8.10B67.3M+434,664+0.65%Add
GEODE CAPITAL MANAGEMENT, LLC
0.42%0.44%#1120$7.79B60.7M$7.14B59.6M+1.2M+1.99%Add
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
0.93%0.91%#425$6.99B54.4M$5.99B49.8M+4.6M+9.24%Add
MORGAN STANLEY
0.33%0.23%#1367$6.25B48.6M$3.74B44.6M+4.1M+9.09%Add
FMR LLC
0.25%0.28%#1675$5.84B45.4M$5.35B44.5M+924,345+2.08%Add
JPMORGAN CHASE & CO
0.31%0.4%#1439$5.68B43.9M$6.26B53.0M-9.1M-17.15%Reduce
Fisher Asset Management, LLC
1.47%1.08%#215$4.95B38.5M$3.18B26.4M+12.1M+45.69%Add
NORGES BANK
0.47%0.48%#966$4.75B37.0M$3.43B38.2M-1.2M-3.25%Reduce
BANK OF AMERICA CORP /DE/
0.25%0.27%#1678$3.92B30.5M$3.70B30.8M-239,013-0.78%Reduce
NORTHERN TRUST CORP
0.39%0.43%#1186$3.38B26.3M$3.26B27.1M-814,305-3.01%Reduce
GOLDMAN SACHS GROUP INC
0.26%0.3%#1630$3.04B23.6M$2.63B21.8M+1.8M+8.27%Add
FRANKLIN RESOURCES INC
0.51%0.42%#865$2.51B19.5M$1.96B16.3M+3.3M+20.17%Add
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.46%0.51%#1014$2.51B19.5M$2.46B20.4M-867,648-4.25%Reduce
Legal & General Group Plc
0.51%0.54%#883$2.43B18.9M$2.35B19.5M-665,202-3.40%Reduce
Invesco Ltd.
0.19%0.39%#2029$2.39B18.6M$2.63B21.9M-3.2M-14.84%Reduce
PRICE T ROWE ASSOCIATES INC /MD/
0.24%0.31%#1755$2.38B18.5M$2.77B23.0M-4.5M-19.63%Reduce
Bank of New York Mellon Corp
0.39%0.41%#1200$2.36B18.3M$2.25B18.7M-373,190-1.99%Reduce
DIMENSIONAL FUND ADVISORS LP
0.41%0.39%#1141$2.25B17.5M$1.86B15.5M+2.0M+13.14%Add
AMERIPRISE FINANCIAL INC
0.45%0.45%#1036$2.24B17.4M$1.96B16.3M+1.1M+6.92%Add
Capital International Investors
0.41%0.02%#1134$1.98B15.4M$104.7M870,261+14.5M+1,668.05%Add
ROYAL BANK OF CANADA
0.29%0.28%#1538$1.92B14.9M$1.61B13.4M+1.6M+11.92%Add
UBS Group AG
0.24%0.26%#1730$1.90B14.8M$1.76B14.7M+128,153+0.87%Add
VANGUARD FIDUCIARY TRUST CO
0.39%0.43%#1189$1.78B13.9M$1.68B14.0M-94,870-0.68%Reduce
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO
1.21%1.31%#296$1.77B13.8M$1.66B13.8M00.00%Unchanged
Amundi
0.38%0.45%#1207$1.59B12.3M$1.66B13.8M-1.4M-10.34%Reduce
ALLIANCEBERNSTEIN L.P.
0.53%0.39%#824$1.58B13.1M$1.19B11.3M+1.8M+16.20%Add
HARRIS ASSOCIATES L P
2.06%1.98%#118$1.55B12.1M$1.49B12.4M-293,824-2.38%Reduce
WELLS FARGO & COMPANY/MN
0.25%0.27%#1684$1.55B12.0M$1.44B12.0M+35,489+0.30%Add
DEUTSCHE BANK AG\
0.45%0.5%#1049$1.54B12.0M$1.51B12.5M-576,594-4.60%Reduce
JANE STREET GROUP, LLC
0.12%0.1%#2504$1.50B11.7M$788.3M6.6M+5.1M+78.04%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
0.1%0.16%#2784$1.24B9.7M$1.44B12.0M-2.3M-19.26%Reduce
Nuveen, LLC
0.3%0.33%#1506$1.24B9.7M$1.21B10.1M-437,365-4.33%Reduce
CITADEL ADVISORS LLC
0.13%0.26%#2409$1.18B9.2M$1.58B13.1M-3.9M-30.04%Reduce
STIFEL FINANCIAL CORP
0.87%0.92%#456$1.05B8.2M$997.4M8.3M-122,432-1.48%Reduce
AQR CAPITAL MANAGEMENT LLC
0.36%0.48%#1273$1.04B8.1M$1.04B8.6M-494,224-5.73%Reduce
HSBC HOLDINGS PLC
0.43%0.49%#1099$1.02B7.9M$944.9M7.9M+89,853+1.14%Add
Roehl & Yi Investment Advisors, LLC
0.33%0.33%#1361$961.9M7,486$597,6996,008+1,478+24.60%Add
BARROW HANLEY MEWHINNEY & STRAUSS LLC
2.86%3.12%#58$942.1M7.3M$952.4M7.9M-586,448-7.41%Reduce
PNC FINANCIAL SERVICES GROUP, INC.
0.46%0.52%#993$936.4M7.3M$905.8M7.5M-243,638-3.24%Reduce
Swiss National Bank
0.47%0.5%#980$896.1M7.0M$876.2M7.3M-310,900-4.27%Reduce
BARCLAYS PLC
0.16%0.22%#2194$873.0M6.8M$909.1M7.6M-763,621-10.10%Reduce
Grantham, Mayo, Van Otterloo & Co. LLC
1.96%2.16%#130$871.9M6.8M$843.7M7.0M-228,769-3.26%Reduce
Aristotle Capital Management, LLC
1.77%1.74%#158$845.4M6.6M$829.3M6.9M-315,862-4.58%Reduce
VOYA INVESTMENT MANAGEMENT LLC
0.72%0.65%#586$833.3M6.5M$620.6M5.2M+1.3M+25.69%Add
Swedbank AB
0.7%0.9%#606$817.3M6.4M$853.1M7.1M-731,062-10.31%Reduce
RAYMOND JAMES FINANCIAL INC
0.22%0.24%#1860$801.4M6.2M$791.9M6.6M-348,741-5.30%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow