Pfeiffer Michael L — SEC Form 4 filings
SEC reporting owner CIK 1598738. 3 Form 4 filings on record with FilingPulse; latest filed 2025-11-12.
Transaction summary — filings shown
Covers all 3 filings on record, filed 2024-01-19 to 2025-11-12. 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): 2 legs across 1 filing — 3,337 shares, $90,795 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: sale of 2,673 shares @ $27.34 ($73,080) in ALPHA & OMEGA SEMICONDUCTOR Ltd, filed 2024-01-19.
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 |
|---|---|---|---|---|---|
| ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) | Director | 3 | — | 2 legs · 3,337 sh · $90,795 | 6 |
Form 4 filings — Pfeiffer Michael L
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2025-11-12 | 4 | ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) | Grant/award (A): 5,681 @ $0 | EDGAR |
| 2024-11-08 | 4 | ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) | Grant/award (A): 4,456 @ $0 | EDGAR |
| 2024-01-19 | 4 | ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) | Option exercise (M): 2,375 @ $7.21 · Sale (S): 664 @ $26.68 · Option exercise (M): 4,500 @ $7.21 · Sale (S): 2,673 @ $27.34 · Option exercise (M): 2,375 (derivative) @ $0 · Option exercise (M): 4,500 (derivative) @ $0 | 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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