DIXON DONALD R

Director · AMPX

As of 2026-09-16, DIXON DONALD R has 5 Form 4 transactions on record across 1 company — 4 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: $2.5MIndirect: $3.3M$5.8Mas of 2026-09-16
  • Direct $2.5M
  • Indirect $3.3M
AMPXindirect359,380 sh$3.3M
AMPXdirect280,079 sh$2.5M

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

AMPX · 5 trades
2026-06-15: Sale, 85,000 sh ($1.5M)2026-06-12: Award / grant, 10,423 sh ($0)2026-06-09: Sale, 40,000 sh ($765K)2026-05-26: Sale, 17,895 sh ($320K)2025-06-13: Award / grant, 44,444 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-15AMPXSale85,000 @ $17.17$1.5M−19.1% of holding359,380Form 4
2026-06-09AMPXSale40,000 @ $19.13$765K−8.3% of holding444,380Form 4
2026-05-26AMPXSale17,895 @ $17.90$320K−3.6% of holding484,380Form 4
2 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-12AMPXAward / grant10,423280,079Form 4
2025-06-13AMPXAward / grant44,444394,656Form 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.