Companies / Merck & Co., Inc.
Merck & Co., Inc.
Financials · FY2025
Ownership
2.47B shares outstanding · as of Jul 31, 2026
Ownership
| Insiders | 0.04% | 1,025,142 |
| Institutions | 79.13% | 1,952,376,014 |
| Public float | 20.82% | 513,770,482 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 20
View all →| Insider | % of shares | Shares |
|---|---|---|
Davis Robert MCEOChairman, CEO & President · Director | 0.02% | 450,351 |
DeLuca Richard R.EVP&Pres, Merck Animal Heallth | <0.01% | 160,174 |
Li Dean YExecutive VP & President, MRL | <0.01% | 92,035 |
Litchfield CarolineEVP & CFO | <0.01% | 90,192 |
Zachary JenniferEVP, General Counsel | <0.01% | 68,916 |
Guindo ChirfiChief Marketing Officer | <0.01% | 60,615 |
Williams David MichaelEVP,Chief Info&Digital Officer | <0.01% | 30,838 |
Romanelli JosephPresident, Human Health Int?l | <0.01% | 28,739 |
Oosthuizen Johannes JacobusPresident, U.S. Market | <0.01% | 21,197 |
Chattopadhyay SanatExe V-P & Pres. MMD | <0.01% | 13,880 |
Institutional holders 3,612
View all →| Holder | Value | % of shares |
|---|---|---|
| $29.17B | 9.20% | |
| $26.77B | 10.31% | |
| $15.57B | 4.88% | |
| $9.10B | 3.50% | |
| $7.14B | 2.41% | |
| $5.11B | 1.97% | |
| $4.73B | 1.82% | |
| $4.30B | 1.66% | |
| $4.00B | 1.54% | |
| $3.07B | 1.18% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Norges Bank 13F manager | Exit | — | $-4.00B | -38.0M -100.00% | — | high |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | — | $1.02B | +7.9M +3.61% | 226,999,837 9.20% of shares | high |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Trim | — | $-842.97M | -7.0M -70.47% | 2,936,330 0.12% of shares | high |
| Q1 2023 as of | Barclays PLC 13F manager | Trim | — | $-597.93M | -5.6M -68.67% | 2,564,610 0.10% of shares | high |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | — | $-580.96M | -4.8M -71.02% | 1,970,691 0.08% of shares | high |
| Q2 2023 as of | Barclays PLC 13F manager | Add | — | $541.21M | +4.7M +182.89% | 7,254,914 0.29% of shares | high |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | Trim | — | $-446.89M | -3.7M -96.58% | 131,751 <0.01% of shares | high |
| Q1 2024 as of | Barclays PLC 13F manager | Add | — | $421.78M | +3.2M +58.38% | 8,671,807 0.35% of shares | high |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| MRK | — | 58933Y105 |