Witkowski Mark R

Director · Officer · CNM

As of 2026-09-16, Witkowski Mark R has 26 Form 4 transactions on record across 1 company — 5 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $5.6MIndirect: $26.4M$32.0Mas of 2026-09-16
  • Direct $5.6M
  • Indirect $26.4M
CNMindirect616,250 sh$26.4M
CNMdirect131,382 sh$5.6M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

CNM · 26 trades
2026-03-12: Award / grant, 131,382 sh ($0)2026-03-12: Award / grant, 18,372 sh ($0)2026-03-11: Withheld for tax, 1,685 sh ($83K)2026-03-10: Withheld for tax, 937 sh ($46K)2026-03-09: Withheld for tax, 478 sh ($24K)2025-08-18: Sale, 100,000 sh ($6.4M)2025-08-18: Conversion, 100,000 sh ($0)2025-08-18: Conversion, 100,000 sh ($0)2025-08-18: Other acquisition, 100,000 sh ($0)2025-08-18: Other acquisition, 100,000 sh ($0)2025-07-17: Sale, 72,331 sh ($4.4M)2025-07-17: Sale, 27,669 sh ($1.7M)2025-07-17: Other acquisition, 100,000 sh ($0)2025-07-17: Conversion, 100,000 sh ($0)2025-07-17: Other acquisition, 100,000 sh ($0)2025-07-17: Conversion, 100,000 sh ($0)2025-03-31: Award / grant, 73,458 sh ($0)2025-03-31: Award / grant, 10,092 sh ($0)2025-03-13: Award / grant, 53,094 sh ($0)2025-03-13: Award / grant, 7,296 sh ($0)2025-03-11: Withheld for tax, 925 sh ($43K)2025-03-10: Withheld for tax, 996 sh ($47K)2025-03-07: Withheld for tax, 536 sh ($26K)2024-03-11: Withheld for tax, 999 sh ($48K)2024-03-11: Withheld for tax, 929 sh ($45K)2023-03-13: Withheld for tax, 1,054 sh ($23K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-08-18CNMSale100,000 @ $64.08$6.4M−73.6% of holding35,847Form 4
2025-07-17CNMSale72,331 @ $61.12$4.4M−53.2% of holding63,516Form 4
2025-07-17CNMSale27,669 @ $61.63$1.7M−43.6% of holding35,847Form 4
23 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-12CNMAward / grant131,382131,382Form 4
2026-03-12CNMAward / grant18,37251,119Form 4
2026-03-11CNMWithheld for tax1,68532,747Form 4
2026-03-10CNMWithheld for tax93734,432Form 4
2026-03-09CNMWithheld for tax47835,369Form 4
2025-08-18CNMConversion100,000135,847Form 4
2025-08-18CNMConversion100,0000Form 4
2025-08-18CNMOther acquisition100,000100,000Form 4
2025-08-18CNMOther acquisition100,000616,250Form 4
2025-07-17CNMOther acquisition100,000716,250Form 4
2025-07-17CNMConversion100,000135,847Form 4
2025-07-17CNMOther acquisition100,000100,000Form 4
2025-07-17CNMConversion100,0000Form 4
2025-03-31CNMAward / grant73,45873,458Form 4
2025-03-31CNMAward / grant10,09235,847Form 4
2025-03-13CNMAward / grant53,09453,094Form 4
2025-03-13CNMAward / grant7,29625,755Form 4
2025-03-11CNMWithheld for tax92518,459Form 4
2025-03-10CNMWithheld for tax99619,384Form 4
2025-03-07CNMWithheld for tax53620,380Form 4
2024-03-11CNMWithheld for tax99921,845Form 4
2024-03-11CNMWithheld for tax92920,916Form 4
2023-03-13CNMWithheld for tax1,05422,844Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.