Chiang John

Director · ASTH

As of 2026-09-17, Chiang John has 8 Form 4 transactions on record across 1 company — 1 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: $1.2MIndirect: $0$1.2Mas of 2026-09-17
  • Direct $1.2M
  • Indirect $0
ASTHdirect35,373 sh$1.2M

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

ASTH · 8 trades
2026-06-10: Award / grant, 4,525 sh ($0)2025-08-13: Option exercise, 20,000 sh ($364K)2025-08-13: Withheld for tax, 12,284 sh ($364K)2025-08-13: Option exercise, 20,000 sh ($0)2025-06-11: Award / grant, 6,449 sh ($0)2024-11-19: Option exercise, 1,515 sh ($28K)2024-11-19: Withheld for tax, 681 sh ($28K)2024-11-19: Option exercise, 1,515 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
8 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-10ASTHAward / grant4,52535,373Form 4
2025-08-13ASTHOption exercise20,00043,132Form 4
2025-08-13ASTHWithheld for tax12,28430,848Form 4
2025-08-13ASTHOption exercise20,0000Form 4
2025-06-11ASTHAward / grant6,44923,132Form 4
2024-11-19ASTHOption exercise1,51517,364Form 4
2024-11-19ASTHWithheld for tax68116,683Form 4
2024-11-19ASTHOption exercise1,5150Form 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.