CHUNG PETER Y

Director · MTSI, ATEN

As of 2026-09-16, CHUNG PETER Y has 5 Form 4 transactions on record across 2 companies — 3 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: $0Indirect: $7.2M$7.2Mas of 2026-09-16
  • Direct $0
  • Indirect $7.2M
ATENindirect207,298 sh$5.5M
MTSIindirect6,781 sh$1.7M

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

MTSI · 3 trades
2026-05-14: Sale, 43,268 sh ($16.4M)2026-03-06: Award / grant, 776 sh ($0)2025-03-07: Award / grant, 1,623 sh ($0)
ATEN · 2 trades
2026-04-22: Award / grant, 7,233 sh ($0)2025-04-17: Award / grant, 12,698 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-14MTSISale43,268 @ $378.20$16.4M−86.5% of holding6,781Form 4
4 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-04-22ATENAward / grant7,233207,298Form 4
2026-03-06MTSIAward / grant77650,049Form 4
2025-04-17ATENAward / grant12,698200,065Form 4
2025-03-07MTSIAward / grant1,62349,273Form 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.