McKechnie Mark
Officer · ACMR
As of 2026-09-16, McKechnie Mark has 33 Form 4 transactions on record across 1 company — 24 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.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $13.9M
- Indirect $0
| ACMR | direct | 215,000 sh | $13.9M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | ACMR | Sale | 30,365 @ $77.45 | $2.4M | −71.5% of holding | 12,109 | Form 4 |
| 2026-08-20 | ACMR | Sale | 13,625 @ $76.34 | $1.0M | −24.3% of holding | 42,474 | Form 4 |
| 2026-08-20 | ACMR | Sale | 11,209 @ $77.89 | $873K | −92.6% of holding | 900 | Form 4 |
| 2026-03-12 | ACMR | Sale | 47,108 @ $45.74 | $2.2M | −96.2% of holding | 1,882 | Form 4 |
| 2026-03-12 | ACMR | Sale | 29,348 @ $45.74 | $1.3M | −95.2% of holding | 1,464 | Form 4 |
| 2026-03-12 | ACMR | Sale | 11,910 @ $44.89 | $535K | −19.6% of holding | 48,990 | Form 4 |
| 2026-03-12 | ACMR | Sale | 8,639 @ $44.94 | $388K | −21.9% of holding | 30,812 | Form 4 |
| 2026-03-12 | ACMR | Sale | 982 @ $46.55 | $46K | −52.2% of holding | 900 | Form 4 |
| 2026-03-12 | ACMR | Sale | 564 @ $46.57 | $26K | −38.5% of holding | 900 | Form 4 |
| 2025-12-08 | ACMR | Sale | 22,500 @ $35.45 | $798K | −96.2% of holding | 900 | Form 4 |
| 2025-12-04 | ACMR | Sale | 7,754 @ $33.50 | $260K | −80.4% of holding | 1,896 | Form 4 |
| 2025-12-04 | ACMR | Sale | 996 @ $34.26 | $34K | −52.5% of holding | 900 | Form 4 |
| 2025-05-14 | ACMR | Sale | 15,000 @ $25.22 | $378K | −94.3% of holding | 900 | Form 4 |
| 2025-03-12 | ACMR | Sale | 15,000 @ $27.42 | $411K | −94.3% of holding | 900 | Form 4 |
| 2025-02-06 | ACMR | Sale | 15,000 @ $22.00 | $330K | −94.3% of holding | 900 | Form 4 |
18 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-20 | ACMR | Option exercise | 30,199 | 31,099 | Form 4 |
| 2026-08-20 | ACMR | Option exercise | 25,000 | 56,099 | Form 4 |
| 2026-08-20 | ACMR | Option exercise | 30,199 | 31,250 | Form 4 |
| 2026-08-20 | ACMR | Option exercise | 25,000 | 215,000 | Form 4 |
| 2026-03-12 | ACMR | Option exercise | 60,000 | 60,900 | Form 4 |
| 2026-03-12 | ACMR | Option exercise | 38,551 | 39,451 | Form 4 |
| 2026-03-12 | ACMR | Option exercise | 38,551 | 61,449 | Form 4 |
| 2026-03-12 | ACMR | Option exercise | 60,000 | 240,000 | Form 4 |
| 2025-12-08 | ACMR | Option exercise | 22,500 | 23,400 | Form 4 |
| 2025-12-08 | ACMR | Option exercise | 22,500 | 0 | Form 4 |
| 2025-12-04 | ACMR | Option exercise | 8,750 | 9,650 | Form 4 |
| 2025-12-04 | ACMR | Option exercise | 8,750 | 0 | Form 4 |
| 2025-05-14 | ACMR | Option exercise | 15,000 | 15,900 | Form 4 |
| 2025-05-14 | ACMR | Option exercise | 15,000 | 0 | Form 4 |
| 2025-03-12 | ACMR | Option exercise | 15,000 | 15,900 | Form 4 |
| 2025-03-12 | ACMR | Option exercise | 15,000 | 15,000 | Form 4 |
| 2025-02-06 | ACMR | Option exercise | 15,000 | 15,900 | Form 4 |
| 2025-02-06 | ACMR | Option exercise | 15,000 | 30,000 | 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.