NEEDHAM INVESTMENT MANAGEMENT L.L.C.

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

Stocks Covered

Latest Filing

Feb 13, 2026

Filings

APT

Alpha Pro Tech, Ltd.

SC 13G/A · Feb 13, 2026

6.2%

643K shares

UIS

Unisys Corporation

SC 13G/A · Feb 13, 2026

6.8%

4.8M shares

CMTL

COMTECH TELECOMMUNICATIONS CORP. /DE/

SC 13G/A · Feb 13, 2026

4.0%

1.2M shares

ODC

Oil-Dri Corporation of America

SC 13G/A · Feb 13, 2026

6.1%

635K shares

PDFS

PDF SOLUTIONS INC

SC 13G/A · Feb 13, 2026

4.9%

2.0M shares

ASPN

Aspen Aerogels Inc

SC 13G · Feb 13, 2026

5.3%

4.4M shares

PDFS

PDF Solutions, Inc.

SC 13G · Nov 13, 2025

5.1%

2.0M shares

NTIC

Northern Technologies International Corp.

SC 13G/A · Nov 13, 2025

6.8%

640K shares

AIP

Arteris, Inc.

SC 13G/A · Nov 13, 2025

7.8%

3.3M shares

KVHI

KVH Industries, Inc.

SC 13G/A · Aug 13, 2025

3.8%

739K shares