Stock ownership
MERCK & CO. INC
- Ticker
- MRK
- CUSIP
- 58933Y105
- Held by
- 3 funds
- Combined value
- $43,777,574
+% bought more, −% sold down — each fund's last-quarter move (change in share count).
| Fund | Quarter | Last quarter | Value | % of fund |
|---|---|---|---|---|
| Fairfax Financial Holdings position history | Q1 2026 | — | $20,799,870 | 1.07% |
| Central Securities position history | Q1 2026 | — | $18,043,500 | 1.49% |
| Thrive Capital position history | Q1 2026 | −7% | $4,934,204 | 0.62% |