Skip to main content

Needham Investment Management LLC

SEC CIK
0001167212
Latest filing
Aug 13, 2026

PDFS holding history

PDF Solutions Inc in every 13F filed by Needham Investment Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

PDFS overviewAll 13F holders of PDFSFull Q2 2026 holdings

Shares (Q2 2026)
2,065,000
Value
$146.2M
% of portfolio
4.4%
Quarters held
22
Since Q1 2021
Holdings of PDFS by Needham Investment Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20262,065,000$146.2M4.4%+42,300+2.1%AddedHolders
Q1 20262,022,700$66.2M3.4%+57,700+2.9%AddedHolders
Q4 20251,965,000$56.1M3.5%−53,550−2.7%ReducedHolders
Q3 20252,018,550$52.1M3.6%+105,050+5.5%AddedHolders
Q2 20251,913,500$40.9M3.3%+48,500+2.6%AddedHolders
Q1 20251,865,000$35.6M3.3%+47,500+2.6%AddedHolders
Q4 20241,817,500$49.2M3.8%+57,950+3.3%AddedHolders
Q3 20241,759,550$55.7M4.3%+429,550+32.3%AddedHolders
Q2 20241,330,000$48.4M4.0%+210,000+18.8%AddedHolders
Q1 20241,120,000$37.7M3.5%+257,500+29.9%AddedHolders
Q4 2023862,500$27.7M3.5%+165,000+23.7%AddedHolders
Q3 2023697,500$22.6M3.8%+40,000+6.1%AddedHolders
Q2 2023657,500$29.7M4.9%+23,000+3.6%AddedHolders
Q1 2023634,500$26.9M4.6%−64,490−9.2%ReducedHolders
Q4 2022698,990$19.9M3.6%−91,010−11.5%ReducedHolders
Q3 2022790,000$19.4M3.8%−66,511−7.8%ReducedHolders
Q2 2022856,511$18.4M3.4%−10,820−1.2%ReducedHolders
Q1 2022867,331$24.2M3.5%−88,059−9.2%ReducedHolders
Q4 2021955,390$30.4M3.8%−308,610−24.4%ReducedHolders
Q3 20211,264,000$29.1M3.9%−255,000−16.8%ReducedHolders
Q2 20211,519,000$27.6M4.0%+205,000+15.6%AddedHolders
Q1 20211,314,000$23.4M3.2%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.