Day Christopher

Officer · AMBA

As of 2026-09-16, Day Christopher has 8 Form 4 transactions on record across 1 company — 0 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: $948KIndirect: $0$948Kas of 2026-09-16
  • Direct $948K
  • Indirect $0
AMBAdirect15,099 sh$948K

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

AMBA · 8 trades
2025-06-17: Sale, 342 sh ($18K)2025-03-18: Sale, 479 sh ($26K)2025-03-06: Sale, 834 sh ($46K)2025-03-05: Award / grant, 1,990 sh ($0)2025-01-03: Sale, 1,247 sh ($97K)2024-12-18: Sale, 848 sh ($64K)2024-12-18: Sale, 81 sh ($6K)2024-12-16: Sale, 482 sh ($36K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-06-17AMBASale342 @ $52.26$18K−2.2% of holding15,099Form 4
2025-03-18AMBASale479 @ $55.02$26K−3.0% of holding15,441Form 4
2025-03-06AMBASale834 @ $55.11$46K−5.0% of holding15,686Form 4
2025-01-03AMBASale1,247 @ $78.10$97K−7.9% of holding14,530Form 4
2024-12-18AMBASale848 @ $75.40$64K−5.1% of holding15,777Form 4
2024-12-18AMBASale81 @ $75.41$6K−0.5% of holding16,625Form 4
2024-12-16AMBASale482 @ $75.41$36K−2.8% of holding16,706Form 4
1 award / exercise / gift record — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2025-03-05AMBAAward / grant1,99016,520Form 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.