Latest Period
Q1 2026
Security Snapshot
Merck & Co Inc - Common Stock Institutional Ownership
CUSIP: 58933Y105
13F Institutional Holders and Ownership History from Q4 2023 to Q1 2026
Institutions Reporting
175
Shares (Excl. Options)
27,315,467
Price
$120.29
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 2,527,521,347
- Price per share
- $120.29
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 27,315,467
- Total reported value
- $3,002,544,516
- Share change
- 0
- Number of holders
- 175
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- 58933Y105 - Merck & Co Inc - Common Stock is tracked under CUSIP 58933Y105.
- 175 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 4 to 175 between Q4 2025 and Q1 2026.
- Reported value moved from $40,258,185,139 to $3,002,544,516.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 175 institutions filings for Q1 2026.
Security key
58933Y105
Latest holder period
Q1 2026
13F holders
175
13D/G owners
1
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 58933Y105:
Significant Owners of Merck & Co Inc - Common Stock based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | 10% | 253,257,639 | The Vanguard Group | 28 Feb 2025 |
As of 31 Mar 2026, 175 institutional investors reported holding 27,315,467 shares of Merck & Co Inc - Common Stock. This represents 1.1% of the company’s total 2,527,521,347 outstanding shares.
Institutional Holders of Merck & Co Inc - Common Stock across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 27,315,467 | $3,002,544,516 | $120.29 | 175 | |
| 2025 Q4 | 381,494,483 | $40,258,185,139 | +$940,277,898 | $105.26 | 4 |
| 2024 Q3 | 119,026,412 | $13,606,360,104 | +$175,640,164 | $114.31 | 1 |
| 2024 Q2 | 324,785,255 | $40,295,698,651 | +$42,665,752 | $123.80 | 2 |
| 2024 Q1 | 324,441,007 | $42,899,586,804 | +$757,634,682 | $131.95 | 2 |
| 2023 Q4 | 318,702,411 | $34,832,634,650 | $109.40 | 2 |