Yuen Maggie
Director · Officer · ATRC, PEN
As of 2026-09-16, Yuen Maggie has 31 Form 4 transactions on record across 2 companies — 12 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 August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-05 | ATRC | Sale | 3,500 @ $38.42 | $134K | −20.0% of holding | 14,015 | Form 4 |
| 2026-03-02 | PEN | Sale | 2,432 @ $342.30 | $832K | −11.7% of holding | 18,353 | Form 4 |
| 2025-11-21 | ATRC | Sale | 3,000 @ $35.72 | $107K | −20.9% of holding | 11,371 | Form 4 |
| 2025-08-13 | PEN | Sale | 2,000 @ $250.00 | $500K | −13.4% of holding | 12,943 | Form 4 |
| 2025-05-02 | PEN | Sale | 2,000 @ $299.01 | $598K | −12.5% of holding | 13,957 | Form 4 |
| 2025-03-03 | PEN | Sale | 590 @ $285.70 | $169K | −3.5% of holding | 16,103 | Form 4 |
| 2025-03-03 | PEN | Sale | 500 @ $286.43 | $143K | −3.1% of holding | 15,603 | Form 4 |
| 2025-03-03 | PEN | Sale | 360 @ $288.74 | $104K | −2.3% of holding | 15,243 | Form 4 |
| 2025-03-03 | PEN | Sale | 300 @ $284.86 | $85K | −1.8% of holding | 16,693 | Form 4 |
| 2025-03-03 | PEN | Sale | 250 @ $283.25 | $71K | −1.4% of holding | 16,993 | Form 4 |
21 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-05-18 | ATRC | Award / grant | 6,144 | 17,515 | Form 4 |
| 2026-03-15 | PEN | Withheld for tax | 186 | 18,167 | Form 4 |
| 2026-02-17 | PEN | Award / grant | 2,630 | 20,785 | Form 4 |
| 2026-02-15 | PEN | Withheld for tax | 481 | 18,155 | Form 4 |
| 2026-02-13 | PEN | Award / grant | 2,630 | 18,636 | Form 4 |
| 2025-12-15 | PEN | Withheld for tax | 565 | 16,006 | Form 4 |
| 2025-11-17 | PEN | Award / grant | 3,580 | 16,556 | Form 4 |
| 2025-11-15 | PEN | Withheld for tax | 364 | 13,303 | Form 4 |
| 2025-11-15 | PEN | Withheld for tax | 327 | 12,976 | Form 4 |
| 2025-08-15 | PEN | Option exercise | 724 | 13,667 | Form 4 |
| 2025-08-15 | PEN | Option exercise | 724 | 5,376 | Form 4 |
| 2025-05-19 | ATRC | Award / grant | 5,401 | 14,371 | Form 4 |
| 2025-05-06 | PEN | Option exercise | 900 | 14,857 | Form 4 |
| 2025-05-06 | PEN | Option exercise | 900 | 6,100 | Form 4 |
| 2025-03-15 | PEN | Withheld for tax | 186 | 15,957 | Form 4 |
| 2025-03-05 | PEN | Option exercise | 900 | 16,143 | Form 4 |
| 2025-03-05 | PEN | Option exercise | 900 | 7,000 | Form 4 |
| 2025-02-18 | PEN | Withheld for tax | 81 | 17,243 | Form 4 |
| 2025-02-18 | PEN | Award / grant | 1,840 | 17,324 | Form 4 |
| 2025-02-14 | PEN | Award / grant | 780 | 15,484 | Form 4 |
| 2024-12-15 | PEN | Withheld for tax | 599 | 14,704 | 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.