Yuen Maggie — SEC Form 4 filings
SEC reporting owner CIK 1796057. 19 Form 4 filings on record with FilingPulse; latest filed 2026-08-07.
Transaction summary — filings shown
Covers all 19 filings on record, filed 2024-03-19 to 2026-08-07. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 11 legs across 7 filings — 18,432 shares, $2,828,364 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 26.
- Largest priced transaction: sale of 2,432 shares @ $342.30 ($832,474) in Penumbra Inc, filed 2026-03-04.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Penumbra Inc (PEN) | Chief Financial Officer | 13 | — | 8 legs · 8,432 sh · $2,502,488 | 23 |
| AtriCure, Inc. (ATRC) | Director | 6 | — | 3 legs · 10,000 sh · $325,875 | 3 |
Form 4 filings — Yuen Maggie
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-07 | 4 | AtriCure, Inc. (ATRC) | Sale (S): 3,500 @ $38.42 | EDGAR |
| 2026-05-20 | 4 | AtriCure, Inc. (ATRC) | Grant/award (A): 6,144 @ $0 | EDGAR |
| 2026-03-17 | 4 | Penumbra Inc (PEN) | Tax withholding (F): 186 @ $336.18 | EDGAR |
| 2026-03-04 | 4 | Penumbra Inc (PEN) | Sale (S): 2,432 @ $342.30 | EDGAR |
| 2026-02-18 | 4 | Penumbra Inc (PEN) | Grant/award (A): 2,630 @ $0 · Tax withholding (F): 481 @ $339.30 · Grant/award (A): 2,630 @ $0 | EDGAR |
| 2025-12-17 | 4 | Penumbra Inc (PEN) | Tax withholding (F): 565 @ $309.15 | EDGAR |
| 2025-11-25 | 4 | AtriCure, Inc. (ATRC) | Sale (S): 3,000 @ $35.72 | EDGAR |
| 2025-11-18 | 4 | Penumbra Inc (PEN) | Tax withholding (F): 364 @ $280.07 · Tax withholding (F): 327 @ $280.07 · Grant/award (A): 3,580 @ $0 | EDGAR |
| 2025-08-15 | 4 | Penumbra Inc (PEN) | Sale (S): 2,000 @ $250 · Option exercise (M): 724 @ $158.30 · Option exercise (M): 724 (derivative) @ $0 | EDGAR |
| 2025-05-21 | 4 | AtriCure, Inc. (ATRC) | Grant/award (A): 5,401 @ $0 | EDGAR |
| 2025-05-06 | 4 | Penumbra Inc (PEN) | Sale (S): 2,000 @ $299.01 · Option exercise (M): 900 @ $158.30 · Option exercise (M): 900 (derivative) @ $0 | EDGAR |
| 2025-03-18 | 4 | Penumbra Inc (PEN) | Tax withholding (F): 186 @ $272.62 | EDGAR |
| 2025-03-05 | 4 | Penumbra Inc (PEN) | Sale (S): 250 @ $283.25 · Sale (S): 300 @ $284.86 · Sale (S): 590 @ $285.70 · Sale (S): 500 @ $286.43 · Sale (S): 360 @ $288.74 · Option exercise (M): 900 @ $158.30 · +1 more | EDGAR |
| 2025-02-19 | 4 | Penumbra Inc (PEN) | Grant/award (A): 780 @ $0 · Grant/award (A): 1,840 @ $0 · Tax withholding (F): 81 @ $271.14 | EDGAR |
| 2024-12-17 | 4 | Penumbra Inc (PEN) | Tax withholding (F): 599 @ $245.55 | EDGAR |
| 2024-11-19 | 4 | Penumbra Inc (PEN) | Grant/award (A): 2,570 @ $0 · Tax withholding (F): 504 @ $237.84 | EDGAR |
| 2024-08-19 | 4 | AtriCure, Inc. (ATRC) | Sale (S): 3,500 @ $24.07 | EDGAR |
| 2024-05-14 | 4 | AtriCure, Inc. (ATRC) | Grant/award (A): 7,788 @ $0 | EDGAR |
| 2024-03-19 | 4 | Penumbra Inc (PEN) | Grant/award (A): 2,070 @ $0 · Tax withholding (F): 193 @ $222.15 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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