Kitayama Mitchell W
Director · ASTH
As of 2026-09-17, Kitayama Mitchell W has 13 Form 4 transactions on record across 1 company — 4 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 $835K
- Indirect $0
| ASTH | direct | 24,337 sh | $835K |
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
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|
13 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-31 | ASTH | Disposition | 8,500 | 24,337 | Form 4 |
| 2026-06-10 | ASTH | Award / grant | 4,991 | 32,837 | Form 4 |
| 2025-11-07 | ASTH | Option exercise | 12,000 | 27,846 | Form 4 |
| 2025-11-07 | ASTH | Option exercise | 12,000 | 0 | Form 4 |
| 2025-09-15 | ASTH | Disposition | 8,000 | 21,060 | Form 4 |
| 2025-09-15 | ASTH | Disposition | 5,214 | 15,846 | Form 4 |
| 2025-09-15 | ASTH | Option exercise | 8,000 | 29,060 | Form 4 |
| 2025-09-15 | ASTH | Option exercise | 8,000 | 12,000 | Form 4 |
| 2025-06-11 | ASTH | Award / grant | 6,449 | 21,060 | Form 4 |
| 2024-12-10 | ASTH | Disposition | 5,100 | 14,611 | Form 4 |
| 2024-11-22 | ASTH | Option exercise | 3,409 | 21,201 | Form 4 |
| 2024-11-22 | ASTH | Withheld for tax | 1,490 | 19,711 | Form 4 |
| 2024-11-22 | ASTH | Option exercise | 3,409 | 0 | Form 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.