Oh Stefan K.L.
Officer · AHR
As of 2026-09-16, Oh Stefan K.L. has 35 Form 4 transactions on record across 1 company — 19 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 $5.2M
- Indirect $0
| AHR | direct | 98,615 sh | $5.2M |
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
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-06-30 | AHR | Sale | 3,860 @ $36.10 | $139K | −100.0% of holding | 0 | Form 4 |
34 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-06 | AHR | Withheld for tax | 1,621 | 96,994 | Form 4 |
| 2026-04-06 | AHR | Option exercise | 3,185 | 0 | Form 4 |
| 2026-04-06 | AHR | Option exercise | 3,185 | 98,615 | Form 4 |
| 2026-04-06 | AHR | Option exercise | 3,185 | 98,615 | Form 4 |
| 2026-03-25 | AHR | Withheld for tax | 4,657 | 92,932 | Form 4 |
| 2026-03-25 | AHR | Withheld for tax | 2,588 | 95,430 | Form 4 |
| 2026-03-25 | AHR | Award / grant | 9,510 | 9,510 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 9,151 | 9,152 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 5,086 | 10,174 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 9,151 | 97,589 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 5,086 | 98,018 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 9,151 | 97,589 | Form 4 |
| 2026-03-25 | AHR | Option exercise | 5,086 | 98,018 | Form 4 |
| 2026-03-12 | AHR | Withheld for tax | 3,437 | 88,438 | Form 4 |
| 2026-03-12 | AHR | Option exercise | 6,370 | 0 | Form 4 |
| 2026-03-12 | AHR | Award / grant | 6,370 | 6,370 | Form 4 |
| 2026-03-12 | AHR | Option exercise | 6,370 | 91,875 | Form 4 |
| 2026-03-12 | AHR | Option exercise | 6,370 | 91,875 | Form 4 |
| 2026-02-09 | AHR | Withheld for tax | 10,166 | 85,505 | Form 4 |
| 2025-04-03 | AHR | Withheld for tax | 1,618 | 95,671 | Form 4 |
| 2025-04-03 | AHR | Option exercise | 3,185 | 3,185 | Form 4 |
| 2025-04-03 | AHR | Option exercise | 3,185 | 97,289 | Form 4 |
| 2025-04-03 | AHR | Option exercise | 3,185 | 97,289 | Form 4 |
| 2025-03-25 | AHR | Withheld for tax | 4,647 | 94,104 | Form 4 |
| 2025-03-25 | AHR | Award / grant | 15,260 | 15,260 | Form 4 |
| 2025-03-25 | AHR | Option exercise | 9,151 | 18,303 | Form 4 |
| 2025-03-25 | AHR | Option exercise | 9,151 | 98,751 | Form 4 |
| 2025-03-25 | AHR | Option exercise | 9,151 | 98,751 | Form 4 |
| 2025-03-14 | AHR | Withheld for tax | 967 | 89,600 | Form 4 |
| 2025-03-14 | AHR | Award / grant | 1,904 | 1,904 | Form 4 |
| 2025-03-14 | AHR | Option exercise | 1,904 | 0 | Form 4 |
| 2025-03-14 | AHR | Option exercise | 1,904 | 90,567 | Form 4 |
| 2025-03-14 | AHR | Option exercise | 1,904 | 90,567 | Form 4 |
| 2025-02-10 | AHR | Withheld for tax | 6,796 | 88,663 | 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.