Ding Xia

Director · USNA

As of 2026-09-17, Ding Xia has 30 Form 4 transactions on record across 1 company — 17 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: $127KIndirect: $0$127Kas of 2026-09-17
  • Direct $127K
  • Indirect $0
USNAdirect8,882 sh$127K

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

USNA · 30 trades
2026-07-23: Withheld for tax, 604 sh ($13K)2026-07-23: Option exercise, 1,632 sh ($0)2026-07-23: Option exercise, 1,632 sh2026-07-23: Option exercise, 1,632 sh2026-05-07: Award / grant, 6,527 sh ($0)2026-04-23: Withheld for tax, 391 sh ($8K)2026-04-23: Option exercise, 1,057 sh ($0)2026-04-23: Option exercise, 1,057 sh2026-04-23: Option exercise, 1,057 sh2026-01-22: Withheld for tax, 392 sh ($9K)2026-01-22: Option exercise, 1,058 sh ($0)2026-01-22: Option exercise, 1,058 sh2026-01-22: Option exercise, 1,058 sh2025-10-23: Withheld for tax, 476 sh ($10K)2025-10-23: Option exercise, 1,057 sh ($0)2025-10-23: Option exercise, 1,057 sh2025-10-23: Option exercise, 1,057 sh2025-07-24: Withheld for tax, 265 sh ($9K)2025-07-24: Option exercise, 1,058 sh ($0)2025-07-24: Option exercise, 1,058 sh2025-07-24: Option exercise, 1,058 sh2025-05-20: Award / grant, 4,230 sh ($0)2025-05-02: Withheld for tax, 169 sh ($5K)2025-05-02: Option exercise, 674 sh ($0)2025-05-02: Option exercise, 674 sh2025-05-02: Option exercise, 674 sh2025-02-02: Withheld for tax, 169 sh ($6K)2025-02-02: Option exercise, 674 sh ($0)2025-02-02: Option exercise, 674 sh2025-02-02: Option exercise, 674 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
30 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-07-23USNAWithheld for tax6048,278Form 4
2026-07-23USNAOption exercise1,6324,895Form 4
2026-07-23USNAOption exercise1,6328,882Form 4
2026-07-23USNAOption exercise1,6328,882Form 4
2026-05-07USNAAward / grant6,5276,527Form 4
2026-04-23USNAWithheld for tax3917,250Form 4
2026-04-23USNAOption exercise1,0570Form 4
2026-04-23USNAOption exercise1,0577,641Form 4
2026-04-23USNAOption exercise1,0577,641Form 4
2026-01-22USNAWithheld for tax3926,584Form 4
2026-01-22USNAOption exercise1,0581,057Form 4
2026-01-22USNAOption exercise1,0586,976Form 4
2026-01-22USNAOption exercise1,0586,976Form 4
2025-10-23USNAWithheld for tax4765,918Form 4
2025-10-23USNAOption exercise1,0572,115Form 4
2025-10-23USNAOption exercise1,0576,394Form 4
2025-10-23USNAOption exercise1,0576,394Form 4
2025-07-24USNAWithheld for tax2655,337Form 4
2025-07-24USNAOption exercise1,0583,172Form 4
2025-07-24USNAOption exercise1,0585,602Form 4
2025-07-24USNAOption exercise1,0585,602Form 4
2025-05-20USNAAward / grant4,2304,230Form 4
2025-05-02USNAWithheld for tax1694,544Form 4
2025-05-02USNAOption exercise6740Form 4
2025-05-02USNAOption exercise6744,713Form 4
2025-05-02USNAOption exercise6744,713Form 4
2025-02-02USNAWithheld for tax1694,039Form 4
2025-02-02USNAOption exercise674674Form 4
2025-02-02USNAOption exercise6744,208Form 4
2025-02-02USNAOption exercise6744,208Form 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.