PDF Solutions
PDFS
53.17
-1.27
-2.33%
PDF Solutions
US · PDFS
#2668 by market cap
Listed 1970
53.17
-1.27
-2.33%
Live - 5344 symbols - heartbeat 40s ago
· 2026-10-08 04:16
Pre-market
52.80
-0.70%
After-hours
53.17
0.00%
- Market cap
- 2.25B
- P/E (TTM)i
- 212.68
- P/Bi
- 6.03
- EPSi
- -0.02
- Div yieldi
- 0.00%
- 52W posi
- 62%
Reader sentiment
Are you bullish or bearish on PDFS?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 4 in the most recent period (2026/Q3).
- Total institutional ownership fell 1.6 percentage points.
Institutional ownership
- Held by institutions
- 100.76% -1.56pp
- Institutions
- 322 -4
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund81.66%
Individual/Insider10.49%
Public Company9.86%
Hedge Fund6.35%
Private Company1.31%
Government Pension Fund1.14%
Family Office/Trust0.23%
Insurance Company0.13%
Top holders as of 2026-06-30
BlackRock
13.14% · 5.55M sh
Advantest Corporation
7.83% · 3.31M sh
John Kibarian
6.07% · 2.56M sh
Needham Investment Management, LLC
4.89% · 2.07M sh
Vanguard Capital Management, LLC
4.57% · 1.93M sh
Kimon Michaels
3.72% · 1.57M sh
Vanguard Portfolio Management, LLC
3.45% · 1.46M sh
Emerald Advisers, LLC
3.44% · 1.45M sh
State Street Global Advisors
3.28% · 1.39M sh
Wasatch Advisors LP
3.27% · 1.38M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 27 buys · 23 sells
| Name | Role | Stake |
|---|---|---|
| John Kibarian | Chief Executive Officer | 6.07% |
| Kimon Michaels | Co-Founder, Executive VP of Products & Solutions and Director | 3.72% |
| Andrzej Strojwas | Chief Technology Officer | 0.17% |
| Adnan Raza | Chief Financial Officer | 0.10% |
| Nancy Erba | Independent Director | 0.10% |
| Joseph Bronson | Lead Independent Director | 0.09% |
| Michael Gustafson | Independent Director | 0.09% |
| Ye Li | Independent Director | 0.06% |
| Shuo Zhang | Independent Director | 0.05% |
| Chi-Foon Chan | Director | 0.05% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-08-30 | Andrzej Strojwas | Chief Technology Officer | Open Market Disposition | -3,394 | $44.41 |
| 2026-08-11 | Shuo Zhang | Independent Director | Open Market Disposition | -1,501 | $51.47 |
| 2026-06-30 | Chi-Foon Chan | Director | Other Acquisition | +2,689 | -- |
| 2026-06-30 | Joseph Bronson | Lead Independent Director | Other Acquisition | +2,689 | -- |
| 2026-06-30 | Michael Gustafson | Independent Director | Other Acquisition | +2,689 | -- |
| 2026-06-30 | Andrzej Strojwas | Chief Technology Officer | Sale to Issuer | -1,356 | $66.88 |
| 2026-06-30 | Andrzej Strojwas | Chief Technology Officer | Other Acquisition | +5,360 | -- |
| 2026-06-30 | Ye Li | Independent Director | Other Acquisition | +2,689 | -- |
| 2026-06-30 | Adnan Raza | Chief Financial Officer | Sale to Issuer | -6,010 | $66.88 |
| 2026-06-30 | Adnan Raza | Chief Financial Officer | Other Acquisition | +23,450 | -- |
| 2026-06-30 | Shuo Zhang | Independent Director | Other Acquisition | +2,689 | -- |
| 2026-06-30 | Nancy Erba | Independent Director | Other Acquisition | +2,689 | -- |
| 2025-12-31 | Andrzej Strojwas | Chief Technology Officer | Sale to Issuer | -2,762 | $28.53 |
| 2025-12-31 | Adnan Raza | Chief Financial Officer | Sale to Issuer | -5,498 | $28.53 |
| 2025-12-08 | Kimon Michaels | Co-Founder, Executive VP of Products & Solutions and Director | Other Disposition | -5,070 | -- |
| 2025-07-31 | Andrzej Strojwas | Chief Technology Officer | Other Acquisition | +8,000 | -- |
| 2025-07-31 | Adnan Raza | Chief Financial Officer | Other Acquisition | +35,000 | -- |
| 2025-06-30 | Chi-Foon Chan | Director | Other Acquisition | +7,429 | -- |
| 2025-06-30 | Joseph Bronson | Lead Independent Director | Other Acquisition | +7,429 | -- |
| 2025-06-30 | Michael Gustafson | Independent Director | Other Acquisition | +7,429 | -- |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 04:16:57 · For reference only, not investment advice and not tailored to your situation.