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PDFS in the 13F filings

PDF Solutions Inc · CUSIP 693282105

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q1 2024Q4 2023Q3 2023Q2 2023Q1 2023Q2 2017Q1 2017Q2 2016Q4 2013
Quarter end
30 Jun 2017
the date the book describes
Filed
14 Aug 2017
up to 45 days after the quarter end
Managers listing it
1
at least, of 95 tracked, among listed positions
Comparable managers
83
filed both Q1 2017 and Q2 2017; 1 listed it in both
Shares listed
52,432
combined, among listed positions
Reported value
$863k
combined, at the quarter end

Managers listing PDFS in Q2 2017

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2017, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

1 of 1 holder

ActionFiling
PDT Partners LLC52,432$863kunder 0.1%Added+5,03214 Aug 2017 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2017 to Q2 2017, among managers that listed it in both quarters or opened it.

Increases

Reductions

No reduction among listed positions.

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q2 2017 to 3 in Q2 2026

Tracked managers listing it, at least.

0123Q4 2013Q2 2016Q1 2017Q2 2017Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
PDFS by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20131$1.4mn.a.n.a.
Q2 20161$214kn.a.n.a.
Q1 20171$1.1mn.a.n.a.
Q2 20171$863kn.a.n.a.
Q1 20231$15mn.a.n.a.
Q2 20231$15mn.a.n.a.
Q3 20231$772kn.a.n.a.
Q4 20231$652k01
Q1 20241$664k01
Q1 20261$34m109
Q2 20263$91m158

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

PDFS and GOOGL →PDFS and AMZN →PDFS and MSFT →Choose a stock to compare with PDFS →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own PDFS, latest filings →Back to the 13F Explorer →