PDFS — PDF SOLUTIONS INC

Ownership history in Qube Research & Technologies Ltd  ·  10 quarters on record

AI Ownership Summary

Qube Research & Technologies Ltd reported PDF SOLUTIONS INC (PDFS) in 10 quarterly 13F filings from 2023 Q3 through 2025 Q3. Peak portfolio weight reached 0.01% in 2023 Q4. The latest visible filing shows PDFS at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this PDFS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Qube Research & Technologies Ltd's position in PDF SOLUTIONS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q3

PDFS was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.01% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q3 to 2025 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

PDFS stock page Qube Research & Technologies Ltd fund profile Qube Research & Technologies Ltd full holdings
How Qube Research & Technologies Ltd held PDFS — position size vs. price
% of Fund (quarterly)    PDFS price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 REDUCED 57,860 -98,899 -63.1% 0.00% $1.5M 2025-11-14 $25.11
2025 Q2 ADDED 156,759 +69,187 +79.0% 0.00% $3.4M 2025-08-14 $19.10
2025 Q1 ADDED 87,572 +62,461 +248.7% 0.00% $1.7M 2025-05-15 $20.49
2024 Q4 REDUCED 25,111 -3,519 -12.3% 0.00% $680K 2025-02-14 $22.98
2024 Q2 REDUCED 28,630 -71,538 -71.4% 0.00% $1.0M 2024-08-14 $31.75
2024 Q1 REDUCED 100,168 -42,169 -29.6% 0.01% $3.4M 2024-05-14 $33.85
2023 Q4 ADDED 142,337 +69,917 +96.5% 0.01% $4.6M 2024-02-13 $32.50
2023 Q3 ADDED 72,420 +46,670 +181.2% 0.01% $2.3M 2023-11-13 $29.51
2 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding PDFS

As of 2025 Q4 — sorted by position size

Samjo Management, LLC 13.61% Silverberg Bernstein Capital Management LLC 7.81% Divisar Capital Management LLC 3Y 7Y 6.09% NEEDHAM INVESTMENT MANAGEMENT LLC 3Y 7Y 3.54% Roubaix Capital, LLC 3Y 2.68% Ophir Asset Management Pty Ltd 3Y 2.31% Ranger Investment Management, L.P. 3Y 7Y 2.29% Bridge City Capital, LLC 3Y 7Y 0.86% HERALD INVESTMENT MANAGEMENT Ltd 3Y 7Y 0.84% EMERALD ADVISERS, LLC 3Y 7Y 0.83%

FAQ About Qube Research & Technologies Ltd and PDFS

These are the practical questions this page is built to answer before you even open the full history table.

How long has Qube Research & Technologies Ltd reported owning PDFS?

Qube Research & Technologies Ltd reported PDFS across 8 quarterly 13F filings, from 2023 Q3 through 2025 Q3.

What was the largest reported PDFS position in Qube Research & Technologies Ltd's portfolio?

The largest reported portfolio weight for PDFS was 0.01% in 2023 Q4.

What is the latest reported PDFS position on this page?

The most recent filing on this page is 2025 Q3, when Qube Research & Technologies Ltd reported 57,860 shares, equal to 0.00% of portfolio, with an estimated market value of $1.5M.

What does the chart on this PDFS ownership page compare?

The chart compares Qube Research & Technologies Ltd's quarterly PDFS portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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