Marinko Mark W.

Officer · SXC

As of 2026-09-16, Marinko Mark W. has 37 Form 4 transactions on record across 1 company — 19 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: $690KIndirect: $0$690Kas of 2026-09-16
  • Direct $690K
  • Indirect $0
SXCdirect71,798 sh$690K

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

SXC · 37 trades
2026-02-25: Purchase, 9,600 sh ($56K)2026-02-25: Purchase, 400 sh ($2K)2026-02-24: Withheld for tax, 3,752 sh ($22K)2026-02-24: Withheld for tax, 3,367 sh ($21K)2026-02-24: Option exercise, 8,468 sh2026-02-24: Option exercise, 7,600 sh2026-02-24: Option exercise, 7,600 sh2026-02-24: Option exercise, 8,468 sh2026-02-24: Other acquisition, 4,633 sh2026-02-24: Option exercise, 7,600 sh2026-02-24: Option exercise, 8,468 sh2026-02-24: Option exercise, 7,600 sh2026-02-24: Option exercise, 8,468 sh2026-02-24: Other acquisition, 4,633 sh2026-02-23: Withheld for tax, 4,204 sh ($26K)2026-02-23: Option exercise, 8,474 sh2026-02-23: Option exercise, 8,474 sh2026-02-23: Option exercise, 8,474 sh2026-02-23: Option exercise, 8,474 sh2025-03-07: Withheld for tax, 3,895 sh ($35K)2025-03-07: Option exercise, 8,791 sh2025-03-07: Option exercise, 8,791 sh2025-03-07: Option exercise, 8,791 sh2025-03-07: Option exercise, 8,791 sh2025-02-24: Withheld for tax, 3,752 sh ($35K)2025-02-24: Withheld for tax, 3,367 sh ($31K)2025-02-24: Option exercise, 8,469 sh2025-02-24: Option exercise, 8,469 sh2025-02-24: Option exercise, 8,469 sh2025-02-24: Option exercise, 7,600 sh2025-02-24: Option exercise, 8,469 sh2025-02-24: Option exercise, 7,600 sh2025-02-24: Option exercise, 7,600 sh2025-02-24: Option exercise, 7,600 sh2025-02-21: Other acquisition, 16,395 sh ($156K)2025-02-21: Award / grant, 25,421 sh2025-02-21: Award / grant, 25,421 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-02-25SXCPurchase9,600 @ $5.84$56K+15.4% of holding71,798Form 4
2026-02-25SXCPurchase400 @ $5.83$2K+0.6% of holding62,198Form 4
35 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-24SXCWithheld for tax3,75248,662Form 4
2026-02-24SXCWithheld for tax3,36752,895Form 4
2026-02-24SXCOption exercise8,46852,414Form 4
2026-02-24SXCOption exercise7,60056,262Form 4
2026-02-24SXCOption exercise7,6007,599Form 4
2026-02-24SXCOption exercise8,4680Form 4
2026-02-24SXCOther acquisition4,63361,798Form 4
2026-02-24SXCOption exercise7,60056,262Form 4
2026-02-24SXCOption exercise8,46852,414Form 4
2026-02-24SXCOption exercise7,6007,599Form 4
2026-02-24SXCOption exercise8,4680Form 4
2026-02-24SXCOther acquisition4,63361,798Form 4
2026-02-23SXCWithheld for tax4,20457,165Form 4
2026-02-23SXCOption exercise8,47461,369Form 4
2026-02-23SXCOption exercise8,47416,947Form 4
2026-02-23SXCOption exercise8,47416,947Form 4
2026-02-23SXCOption exercise8,47461,369Form 4
2025-03-07SXCWithheld for tax3,89543,946Form 4
2025-03-07SXCOption exercise8,79147,841Form 4
2025-03-07SXCOption exercise8,7910Form 4
2025-03-07SXCOption exercise8,79147,841Form 4
2025-03-07SXCOption exercise8,7910Form 4
2025-02-24SXCWithheld for tax3,75218,422Form 4
2025-02-24SXCWithheld for tax3,36722,655Form 4
2025-02-24SXCOption exercise8,46922,174Form 4
2025-02-24SXCOption exercise8,46922,174Form 4
2025-02-24SXCOption exercise8,4698,468Form 4
2025-02-24SXCOption exercise7,60015,199Form 4
2025-02-24SXCOption exercise8,4698,468Form 4
2025-02-24SXCOption exercise7,60026,022Form 4
2025-02-24SXCOption exercise7,60015,199Form 4
2025-02-24SXCOption exercise7,60026,022Form 4
2025-02-21SXCOther acquisition16,39539,050Form 4
2025-02-21SXCAward / grant25,42125,421Form 4
2025-02-21SXCAward / grant25,42125,421Form 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.