Quick Takeaways
- Lothar Maier has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $715,758.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Lothar Maier
- Location
- Milpitas, CA
- Summary
- The estimated net worth of Lothar Maier is at least $715,758 dollars as of 18 Mar 2026. Lothar Maier is the Director of FORMFACTOR INC and owns shares of FORMFACTOR INC (FORM) stock worth about $372.9K. Lothar Maier is the Director of SunPower Inc. and owns shares of SunPower Inc. (SPWR) stock worth about $342.9K.
- Signature
- /s/ Lothar Maier
- All Insider Reports
- All Insider Reports
Follow Filing Activity
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What Changed
- Largest disclosed position: FORMFACTOR INC ($372,890).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Lothar Maier
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| FORM | FORMFACTOR INC | Director | $372,890 | 14 May 2024 | ||
| SPWR, SPWRW | SunPower Inc. | Director | $342,868 | 28 Dec 2025 |
Insider Transactions Reported by Lothar Maier:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.