PDF SOLUTIONS INC PDFS
COM · Common Stock · CUSIP 693282105 · ISIN US6932821050
Company based in San Jose, California
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 38.8m as of 2024-11-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $31.68. Options: 3 managers hold calls ($82.4k notional), 2 hold puts ($9.5k).
Trends to Q3 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 136 |
| Q4 2022 | 151 |
| Q1 2023 | 179 |
| Q2 2023 | 181 |
| Q3 2023 | 185 |
| Q4 2023 | 199 |
| Q1 2024 | 181 |
| Q2 2024 | 174 |
| Q3 2024 | 177 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 71 | 60 |
| Q1 2023 | 93 | 68 |
| Q2 2023 | 97 | 86 |
| Q3 2023 | 105 | 83 |
| Q4 2023 | 116 | 75 |
| Q1 2024 | 73 | 110 |
| Q2 2024 | 84 | 90 |
| Q3 2024 | 85 | 84 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2023 | $45.0k | $48.2k | 1.07 |
| Q1 2024 | $973.1k | $131.3k | 0.13 |
| Q2 2024 | $58.2k | $3.6k | 0.06 |
| Q3 2024 | $82.4k | $9.5k | 0.12 |
Biggest buyers
| NEEDHAM INVESTMENT MANAGEMENT LLC | Added | +429.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Added | +158.6k |
| Ophir Asset Management Pty Ltd | Added | +133.6k |
| JANUS HENDERSON GROUP PLC | Added | +94.2k |
| Divisar Capital Management LLC | Added | +80.0k |
| FIRST TRUST ADVISORS LP | New | +63.7k |
| Russell Investments Group, Ltd. | Added | +49.8k |
| Samjo Management, LLC | Added | +46.3k |
| BARCLAYS PLC | Added | +44.1k |
| JPMORGAN CHASE & CO | Added | +43.8k |
Biggest sellers
| Nuveen Asset Management, LLC | Reduced | -282.3k |
| Roubaix Capital, LLC | Sold out | -102.0k |
| TWO SIGMA ADVISERS, LP | Reduced | -54.1k |
| ALGERT GLOBAL LLC | Sold out | -49.9k |
| SNYDER CAPITAL MANAGEMENT L P | Reduced | -48.5k |
| CITADEL ADVISORS LLC | Reduced | -43.3k |
| Granahan Investment Management, LLC | Reduced | -42.1k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -41.9k |
| Man Group plc | Sold out | -41.6k |
| BANK OF MONTREAL /CAN/ | Sold out | -41.4k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $79.2k2.5k shares |
| GROUP ONE TRADING LLC | New | $3.2k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $9.5k300 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| KIBARIAN JOHN KACHIG 13G · exempt (held before listing) no change · filed 2026-02-17 | 6.5% |
| WASATCH ADVISORS LP 13G · institution new · filed 2026-10-09 | 6.3% |
| NEEDHAM INVESTMENT MANAGEMENT LLC 13G · institution +0.2 pts · filed 2026-05-14 | 5.1% |
Fell to 5% or below in the last year: ADVANTEST CORP (0.0%, 2026-05-27), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q3 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2022 | 0 | — | 4 | $1.2m | — |
| Q1 2023 | 0 | — | 4 | $1.6m | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 1 | $102.8k | — |
| Q4 2023 | 0 | — | 2 | $232.8k | — |
| Q1 2024 | 0 | — | 2 | $892.7k | — |
| Q2 2024 | 0 | — | 2 | $1.1m | — |
| Q3 2024 | 0 | — | 0 | — | — |
None reported in Q3 2024.
Holders, Q3 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 4.9m $154.0m | First filing |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.2m $100.7m | Reduced -3.3k |
| NEEDHAM INVESTMENT MANAGEMENT LLC 4.28% of their portfolio | 1.8m $55.7m | Added +429.6k |
| WASATCH ADVISORS LP 0.19% of their portfolio | 1.3m $39.7m | Reduced -23.0k |
| STATE STREET CORP 0.00% of their portfolio | 1.1m $36.4m | Added +23.1k |
| Samjo Management, LLC 11.14% of their portfolio | 1.0m $32.3m | Added +46.3k |
| Ranger Investment Management, L.P. 2.00% of their portfolio | 983.9k $31.2m | Added +30.9k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.07% of their portfolio | 902.3k $28.6m | Added +158.6k |
| EMERALD ADVISERS, LLC 1.10% of their portfolio | 895.2k $28.4m | Added +19.7k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 875.7k $27.7m | Reduced -41.9k |
| SNYDER CAPITAL MANAGEMENT L P 0.54% of their portfolio | 814.9k $25.8m | Reduced -48.5k |
| Ophir Asset Management Pty Ltd 3.94% of their portfolio | 808.5k $25.6m | Added +133.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 740.2k $23.5m | Added +9.1k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.20% of their portfolio | 728.1k $23.1m | Added +12.2k |
| Divisar Capital Management LLC 3.95% of their portfolio | 675.6k $21.4m | Added +80.0k |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 658.5k $20.9m | Added +94.2k |
| MORGAN STANLEY 0.00% of their portfolio | 441.9k $14.0m | Reduced -25.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 372.4k $11.8m | Reduced -7.9k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 365.7k $11.6m | Added +3.7k |
| Silverberg Bernstein Capital Management LLC 8.74% of their portfolio | 301.3k $9.5m | Reduced -700 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.06% of their portfolio | 293.4k $9.3m | Reduced -2.0k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 271.4k $8.6m | Added +49.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 264.6k $8.4m | Added +43 |
| Assenagon Asset Management S.A. 0.01% of their portfolio | 227.7k $7.2m | Reduced -4.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 214.8k $6.8m | Reduced -26.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 214.2k $6.8m | Added +26.7k |
| ROYCE & ASSOCIATES LP 0.06% of their portfolio | 192.7k $6.1m | Reduced -17.7k |
| SEGALL BRYANT & HAMILL, LLC 0.07% of their portfolio | 171.2k $5.4m | Reduced -7.0k |
| Granahan Investment Management, LLC 0.19% of their portfolio | 154.9k $4.9m | Reduced -42.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 148.2k $4.7m | Added +43.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 146.9k $4.7m | Reduced -5.9k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 138.1k $4.4m | Reduced -282.3k |
| FMR LLC 0.00% of their portfolio | 119.2k $3.8m | Added +2.4k |
| WESTERLY CAPITAL MANAGEMENT, LLC 2.07% of their portfolio | 115.0k $3.6m | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio | 107.0k $3.4m | Reduced -4.6k |
| Invesco Ltd. 0.00% of their portfolio | 101.2k $3.2m | Reduced -1.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 100.7k $3.2m | Added +3.8k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 97.9k $3.1m | Reduced -1.3k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 95.2k $3.0m | Added +15.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 93.7k $3.0m | Added +8.0k |
| Legal & General Group Plc 0.00% of their portfolio | 84.6k $2.7m | Reduced -291 |
| PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio | 75.1k $2.4m | Added +290 |
| HERALD INVESTMENT MANAGEMENT Ltd 0.41% of their portfolio | 75.0k $2.4m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 74.1k $2.3m | Reduced -5.8k |
| Squarepoint Ops LLC 0.01% of their portfolio | 66.3k $2.1m | Added +41.8k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 65.8k $2.1m | Reduced -1.8k |
| NEXT CENTURY GROWTH INVESTORS LLC 0.17% of their portfolio | 65.7k $2.1m | Added +39 |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 63.7k $2.0m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 60.9k $1.9m | Reduced -13.8k |
| CenterBook Partners LP 0.12% of their portfolio | 60.4k $1.9m | Added +24.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 60.3k $1.9m | Added +32.0k |
| Swiss National Bank 0.00% of their portfolio | 60.0k $1.9m | Reduced -800 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 58.3k $1.8m | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 55.5k $1.8m | Added +44.1k |
| Dana Investment Advisors, Inc. 0.06% of their portfolio | 54.5k $1.7m | Reduced -161 |
| Fisher Asset Management, LLC 0.00% of their portfolio | 47.3k $1.5m | Reduced -25 |
| Millrace Asset Group, Inc. 1.49% of their portfolio | 46.1k $1.5m | Reduced -13.2k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 45.1k $1.4m | Unchanged |
| M&T Bank Corp 0.00% of their portfolio | 44.8k $1.4m | Added +1 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 41.7k $1.3m | Added +5.0k |
| CITIGROUP INC 0.00% of their portfolio | 41.0k $1.3m | Added +6.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 38.9k $1.2m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 36.5k $1.2m | Added +4.3k |
| Kings Path Partners LLC 0.47% of their portfolio | 35.6k $1.1m | Unchanged |
| AMI ASSET MANAGEMENT CORP 0.06% of their portfolio | 35.4k $1.1m | Reduced -8.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 34.4k $1.1m | Reduced -35 |
| UBS Group AG 0.00% of their portfolio | 33.5k $1.1m | Added +12.9k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 32.1k $1.0m | Reduced -920 |
| Williams Jones Wealth Management, LLC. 0.01% of their portfolio | 32.0k $1.0m | Unchanged |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 30.8k $972.0k | Reduced -16.8k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 30.2k $957.6k | Added +5.5k |
| Amundi 0.00% of their portfolio | 30.0k $912.3k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 29.1k $921.0k | Reduced -1.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 27.9k $884.0k | Reduced -12.3k |
| Verition Fund Management LLC 0.01% of their portfolio | 26.8k $849.1k | Added +9.0k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 26.5k $839.6k | Reduced -4.7k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 26.4k $836.4k | Reduced -54.1k |
| Campbell & CO Investment Adviser LLC 0.06% of their portfolio | 24.8k $784.3k | Added +2.8k |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 23.9k $757.7k | Reduced -4.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 19.8k $627.4k | Reduced -15.1k |
| SHERBROOKE PARK ADVISERS LLC 0.14% of their portfolio | 19.8k $626.2k | New |
| Corebridge Financial, Inc. 0.00% of their portfolio | 17.9k $565.8k | Reduced -176 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 17.8k $564.6k | Unchanged |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 17.7k $560.0k | Reduced -333 |
| Illinois Municipal Retirement Fund 0.01% of their portfolio | 17.4k $550.1k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 17.1k $540.8k | Added +800 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 16.4k $519.0k | Added +8.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 16.2k $513.5k | Reduced -224 |
| Louisiana State Employees Retirement System 0.01% of their portfolio | 15.0k $475.2k | Reduced -500 |
| ZACKS INVESTMENT MANAGEMENT 0.00% of their portfolio | 14.1k $446.6k | Added +6 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 13.7k $435.5k | Reduced -3.9k |
| SG Americas Securities, LLC 0.00% of their portfolio | 13.4k $424.0k | Added +4.1k |
| Inspire Investing, LLC 0.04% of their portfolio | 13.1k $413.6k | Added +3.6k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 12.8k $406.1k | Reduced -2.4k |
| PITCAIRN CO 0.02% of their portfolio | 12.6k $399.5k | Reduced -2.5k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 12.6k $393.6k | Added +1.0k |
| HRT FINANCIAL LP 0.00% of their portfolio | 12.4k $392.0k | New |
| YOUSIF CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 12.0k $379.6k | Reduced -296 |
| Trexquant Investment LP 0.00% of their portfolio | 11.3k $359.1k | New |
| STRS OHIO 0.00% of their portfolio | 11.2k $354.8k | Added +7.4k |