PDF Solutions
PDFS
187 hedge funds and large institutions have $874M invested in PDF Solutions in 2025 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 71 increasing their positions, 60 reducing their positions, and 25 closing their positions.
1,145% more call options, than puts
Call options by funds: $249K | Put options by funds: $20K
133% more funds holding in top 10
Funds holding in top 10: 3 → 7 (+4)
20% more first-time investments, than exits
New positions opened: 30 | Existing positions closed: 25
18% more repeat investments, than reductions
Existing positions increased: 71 | Existing positions reduced: 60
14% more capital invested
Capital invested by funds: $767M → $874M (+$107M)
2.27% more ownership
Funds ownership: 75.23% → 77.5% (+2.3%)
2% more funds holding
Funds holding: 183 → 187 (+4)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OAM
Ophir Asset Management
Sydney,
Australia
|
+$20M |
| 2 |
SCM
Snyder Capital Management
San Francisco,
California
|
+$4.29M |
| 3 |
Janus Henderson Group
London,
|
+$3.55M |
| 4 |
BCM
Brown Capital Management
Baltimore,
Maryland
|
+$3.46M |
| 5 |
RIM
Ranger Investment Management
Dallas,
Texas
|
+$3.12M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CC
Cannell Capital
Alta,
Wyoming
|
-$8.71M |
| 2 |
CP
CenterBook Partners
Greenwich,
Connecticut
|
-$3.93M |
| 3 |
ECM
ExodusPoint Capital Management
New York
|
-$2.73M |
| 4 |
PCM
Penn Capital Management
Philadelphia,
Pennsylvania
|
-$2.7M |
| 5 |
Renaissance Technologies
New York
|
-$2.33M |
PDFS Hedge Fund Activity: Q4 2025 in Review
187 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in PDF Solutions (PDFS) for Q4 2025, worth a combined $874M — up 14% from $767M a quarter earlier.
Buyers outnumbered sellers: 30 funds opened new PDFS positions and 25 closed out — a net gain of 5 holders — while 71 added to existing stakes and 60 trimmed.
The largest buyer was Ophir Asset Management, opening a new position worth an estimated $20M. The largest seller was Cannell Capital, exiting entirely with an estimated $8.71M sold.
- 187 institutional investors held PDF Solutions (PDFS) as of Q4 2025, up from 183 in Q3 2025.
- Funds reported $874M of PDF Solutions stock for Q4 2025, up 14% quarter-over-quarter.
- 30 funds opened new PDF Solutions positions in Q4 2025 and 25 closed out, a net change of +5 holders.
- The largest PDF Solutions buyer in Q4 2025 was Ophir Asset Management, an estimated $20M added.
- The largest PDF Solutions seller in Q4 2025 was Cannell Capital, an estimated $8.71M sold.
Based on aggregated 13F filings for Q4 2025.