Mark R. Witkowski owns 0.34% of Core & Main
647,773 shares as of the October 16, 2026 filing, worth $27.5M at the latest close.
CNM · $8.1B market capGet an email when Mark R. Witkowski’s stake moves.
Free.
The stake
0.34%
worth $27.5M at the latest close
Stake rank
#1,046
by dollar value of the stake
Last sale
435 days ago
Aug 18, 2025
Last buy
None
no purchases since 2023
Mark R. Witkowski owns 0.34% of Core & Main, Inc.: 647,773 of 190,494,050 shares, worth about $27.5M at the 2026-10-26 close. The stake has moved from 0.42% in 2021 to 0.34% on 2026-10-16, across 8 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $6.4M on 2025-08-18.
How the stake is held
each class as its filings last stated it