Liu Curtis

Director · Officer · Ten-percent owner · AMPL

As of 2026-09-16, Liu Curtis has 14 Form 4 transactions on record across 1 company — 11 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: $12.8MIndirect: $2.4M$15.2Mas of 2026-09-16
  • Direct $12.8M
  • Indirect $2.4M
AMPLdirect950,316 sh$12.8M
AMPLindirect175,000 sh$2.4M

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

AMPL · 14 trades
2026-08-17: Withheld for tax, 53,878 sh ($702K)2026-07-08: Gift, 175,000 sh ($0)2026-07-08: Gift, 175,000 sh ($0)2026-06-01: Sale, 22,201 sh ($178K)2026-05-15: Withheld for tax, 40,279 sh ($244K)2026-05-04: Sale, 17,586 sh ($143K)2026-04-15: Award / grant, 417,827 sh ($0)2026-03-06: Sale, 33,201 sh ($266K)2026-03-05: Sale, 30,061 sh ($241K)2026-02-15: Withheld for tax, 26,672 sh ($169K)2025-11-15: Withheld for tax, 36,092 sh ($387K)2025-08-15: Withheld for tax, 34,301 sh ($393K)2025-05-15: Withheld for tax, 25,533 sh ($310K)2025-04-25: Award / grant, 852,878 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-01AMPLSale22,201 @ $8.03$178K−2.2% of holding1,004,779Form 4
2026-05-04AMPLSale17,586 @ $8.12$143K−1.6% of holding1,067,259Form 4
2026-03-06AMPLSale33,201 @ $8.01$266K−5.2% of holding603,756Form 4
2026-03-05AMPLSale30,061 @ $8.00$241K−4.5% of holding636,957Form 4
10 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-17AMPLWithheld for tax53,878950,316Form 4
2026-07-08AMPLGift175,000175,000Form 4
2026-07-08AMPLGift175,0007,207,208Form 4
2026-05-15AMPLWithheld for tax40,2791,026,980Form 4
2026-04-15AMPLAward / grant417,8271,084,845Form 4
2026-02-15AMPLWithheld for tax26,672730,280Form 4
2025-11-15AMPLWithheld for tax36,092756,952Form 4
2025-08-15AMPLWithheld for tax34,301793,044Form 4
2025-05-15AMPLWithheld for tax25,533827,345Form 4
2025-04-25AMPLAward / grant852,878852,878Form 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.