NEEDHAM INVESTMENT MANAGEMENT LLC - 30 Sep 2025 SCHEDULE 13G 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.
Security
PDF Solutions, Inc. Common Stock, $0.00015 par value
Symbol
PDFS
Shares outstanding
39,579,412 shares
Disclosed Ownership
2,018,550 shares
Ownership
5.1%
Form type
SCHEDULE 13G
Filing time
13 Nov 2025, 17:48:49 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

Reporting Managers (6)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
NEEDHAM INVESTMENT MANAGEMENT L.L.C. 5.1% 2,018,550 0 2,018,550 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
NEEDHAM ASSET MANAGEMENT, LLC 5.1% 2,018,550 0 2,018,550 By: /s/ James W. Giangrasso James W. Giangrasso, Authorized Person
NEEDHAM AGGRESSIVE GROWTH FUND 3.5% 1,385,000 0 1,385,000 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
NEEDHAM GROWTH FUND 0.7% 293,550 0 293,550 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
NEEDHAM SMALL CAP GROWTH FUND 0.9% 340,000 0 340,000 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
GEORGE A. NEEDHAM 5.1% 2,018,550 0 2,018,550 By: /s/ George A. Needham George A. Needham