Quick Takeaways
- NEEDHAM INVESTMENT MANAGEMENT LLC filed SCHEDULE 13G/A for PDF SOLUTIONS INC Common Stock, $0.00015 par value (PDFS).
- Disclosed ownership: 4.9%.
- Date of event: 31 Dec 2025.
NEEDHAM INVESTMENT MANAGEMENT LLC - 31 Dec 2025 SCHEDULE 13G/A Report for PDF SOLUTIONS INC Common Stock, $0.00015 par value (PDFS)
- Filing Manager
- NEEDHAM INVESTMENT MANAGEMENT LLC
- Reporting Manager
- NEEDHAM INVESTMENT MANAGEMENT L.L.C.
- Symbol
- PDFS
- Shares outstanding
- 40,102,041 shares
- Disclosed Ownership
- 1,965,000 shares
- Ownership
- 4.9%
- Form type
- SCHEDULE 13G/A
- Filing time
- 13 Feb 2026, 17:48:00 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 13 Nov 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"NEEDHAM INVESTMENT MANAGEMENT LLC disclosed 4.9% ownership in PDF SOLUTIONS INC Common Stock, $0.00015 par value (PDFS) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 13 Nov 2025.
- Current filing was accepted on 13 Feb 2026, 17:48.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (6)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| NEEDHAM INVESTMENT MANAGEMENT L.L.C. | 4.9% | 1,965,000 | 0 | 1,965,000 | By: /s/ James W. Giangrasso | James W. Giangrasso, Chief Financial Officer | |
| NEEDHAM ASSET MANAGEMENT, LLC | 4.9% | 1,965,000 | 0 | 1,965,000 | By: /s/ James W. Giangrasso | James W. Giangrasso, Authorized Person | |
| NEEDHAM AGGRESSIVE GROWTH FUND | 3.7% | 1,465,000 | 0 | 1,465,000 | By: /s/ James W. Giangrasso | James W. Giangrasso, Chief Financial Officer | |
| NEEDHAM GROWTH FUND | 0.7% | 270,000 | 0 | 270,000 | By: /s/ James W. Giangrasso | James W. Giangrasso, Chief Financial Officer | |
| NEEDHAM SMALL CAP GROWTH FUND | 0.6% | 230,000 | 0 | 230,000 | By: /s/ James W. Giangrasso | James W. Giangrasso, Chief Financial Officer | |
| GEORGE A. NEEDHAM | 4.9% | 1,965,000 | 0 | 1,965,000 | By: /s/ George A. Needham | George A. Needham |