Johnson Robert Matthew

Director · Officer · SLAB, NOVT

As of 2026-09-16, Johnson Robert Matthew has 16 Form 4 transactions on record across 2 companies — 8 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.

Pattern in the record: open-market sales filed in May in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $17.7MIndirect: $0$17.7Mas of 2026-09-16
  • Direct $17.7M
  • Indirect $0
SLABdirect80,519 sh$17.7M

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

NOVT · 10 trades
2026-01-02: Award / grant, 1,799 sh ($0)2026-01-02: Option exercise, 1,325 sh2026-01-02: Option exercise, 1,325 sh2026-01-02: Option exercise, 1,325 sh2026-01-02: Option exercise, 1,325 sh2025-05-08: Option exercise, 818 sh2025-05-08: Option exercise, 818 sh2025-05-08: Option exercise, 818 sh2025-05-08: Option exercise, 818 sh2025-01-02: Award / grant, 1,325 sh ($0)
SLAB · 6 trades
2026-05-18: Sale, 8,024 sh ($1.7M)2026-05-15: Withheld for tax, 10,363 sh ($2.2M)2026-02-15: Award / grant, 25,218 sh ($0)2025-05-16: Sale, 5,879 sh ($771K)2025-05-15: Withheld for tax, 7,625 sh ($1.0M)2025-05-15: Award / grant, 39,282 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-18SLABSale8,024 @ $216.83$1.7M−9.1% of holding80,519Form 4
2025-05-16SLABSale5,879 @ $131.20$771K−7.4% of holding73,688Form 4
14 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-05-15SLABWithheld for tax10,36388,543Form 4
2026-02-15SLABAward / grant25,21898,906Form 4
2026-01-02NOVTAward / grant1,7991,799Form 4
2026-01-02NOVTOption exercise1,3252,143Form 4
2026-01-02NOVTOption exercise1,3250Form 4
2026-01-02NOVTOption exercise1,3250Form 4
2026-01-02NOVTOption exercise1,3252,143Form 4
2025-05-15SLABWithheld for tax7,62579,567Form 4
2025-05-15SLABAward / grant39,28287,192Form 4
2025-05-08NOVTOption exercise818818Form 4
2025-05-08NOVTOption exercise8180Form 4
2025-05-08NOVTOption exercise818818Form 4
2025-05-08NOVTOption exercise8180Form 4
2025-01-02NOVTAward / grant1,3251,325Form 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.