VANGUARD GROUP INC 13D and 13G filings for NewMarket Corporation:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-27 11:05 am Sale | 2026-03-13 | 13G | NEWMARKET COPR NEU | VANGUARD GROUP INC | 0 0.000% | -819,398![]() (Position Closed) | Filing |
| 2025-07-29 2:14 pm Purchase | 2025-06-30 | 13G | NEWMARKET COPR NEU | VANGUARD GROUP INC | 819,398 8.680% | 97,214![]() (+13.46%) | Filing |
| 2024-02-13 5:09 pm Purchase | 2023-12-29 | 13G | NEWMARKET COPR NEU | VANGUARD GROUP INC | 722,184 7.530% | 15,276![]() (+2.16%) | Filing |
| 2023-02-09 11:27 am Sale | 2022-12-30 | 13G | NEWMARKET COPR NEU | VANGUARD GROUP INC | 706,908 7.160% | -34,290![]() (-4.63%) | Filing |
| 2022-02-10 08:27 am Sale | 2021-12-31 | 13G | NEWMARKET COPR NEU | VANGUARD GROUP INC | 741,198 6.970% | -35,692![]() (-4.59%) | Filing |

