PDFS Institutional Ownership & Shareholders
PDF SOLUTIONS INC (PDFS) is currently held by 272 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $2.72B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of PDFS tracked by InsiderSet, reporting ownership valued at approximately $392.91M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $227.56M, representing an estimated loss of -42.08% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed PDFS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Needham Investment Management Llc, Wasatch Advisors Lp, and several other long-term asset managers with concentrated positions in PDF SOLUTIONS INC (PDFS).
This page ranks the largest institutional PDFS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
272
Total Reported Value
$2.72B
Largest Holder
Blackrock, Inc.
Largest Position
$392.91M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
93
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 5,550,335 | $392,908,214 | $227,563,735 | -$165,344,479 | -42.08% | |
| Needham Investment Management Llc | 4.40% | 2,065,000 | $146,181,350 | $84,665,000 | -$61,516,350 | -42.08% | |
| Wasatch Advisors Lp | 1.00% | 2,646,572 | $135,107,501 | $108,509,452 | -$26,598,049 | -19.69% | |
| Vanguard Capital Management Llc | 0.00% | 1,664,256 | $117,812,682 | $68,234,496 | -$49,578,186 | -42.08% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,457,748 | $103,193,981 | $59,767,668 | -$43,426,313 | -42.08% | |
| State Street Corp | 0.00% | 1,386,498 | $98,150,193 | $56,846,418 | -$41,303,775 | -42.08% | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.28% | 1,319,627 | $93,416,395 | $54,104,707 | -$39,311,688 | -42.08% | |
| Ranger Investment Management, L.P. | 5.15% | 1,149,647 | $81,383,511 | $47,135,527 | -$34,247,984 | -42.08% | |
| Snyder Capital Management L P | 1.26% | 1,033,997 | $73,196,648 | $42,393,877 | -$30,802,771 | -42.08% | |
| Geode Capital Management, Llc | 0.00% | 917,962 | $64,996,718 | $37,636,442 | -$27,360,276 | -42.09% | |
| Emerald Advisers, Llc | 1.47% | 884,294 | $62,599,172 | $36,256,054 | -$26,343,118 | -42.08% | |
| Jpmorgan Chase & Co | 0.00% | 927,267 | $61,125,440 | $38,017,947 | -$23,107,493 | -37.80% | |
| Dimensional Fund Advisors Lp | 0.01% | 841,186 | $59,537,326 | $34,488,626 | -$25,048,700 | -42.07% | |
| Jennison Associates Llc | 0.03% | 716,075 | $50,690,949 | $29,359,075 | -$21,331,874 | -42.08% | |
| Atreides Management, Lp | 0.42% | 658,536 | $46,617,763 | $26,999,976 | -$19,617,787 | -42.08% | |
| Loomis Sayles & Co L P | 0.06% | 643,268 | $45,536,916 | $26,373,988 | -$19,162,928 | -42.08% | |
| Ophir Asset Management Pty Ltd | 3.54% | 607,343 | $42,993,811 | $24,901,063 | -$18,092,748 | -42.08% | |
| Point72 Asset Management, L.P. | 0.06% | 598,902 | $42,396,273 | $24,554,982 | -$17,841,291 | -42.08% | |
| Emerald Mutual Fund Advisers Trust | 1.41% | 566,429 | $40,097,509 | $23,223,589 | -$16,873,920 | -42.08% | |
| William Blair Investment Management, Llc | 0.12% | 554,226 | $39,233,659 | $22,723,266 | -$16,510,393 | -42.08% | |
| Samjo Management, Llc | 13.25% | 548,285 | $38,813,095 | $22,479,685 | -$16,333,410 | -42.08% | |
| Janus Henderson Group Plc | 0.02% | 1,035,666 | $33,877,471 | $42,462,306 | +$8,584,835 | +25.34% | |
| Oberweis Asset Management Inc/ | 0.62% | 426,400 | $30,184,856 | $17,482,400 | -$12,702,456 | -42.08% | |
| Invesco Ltd. | 0.00% | 422,931 | $29,939,286 | $17,340,171 | -$12,599,115 | -42.08% | |
| Northern Trust Corp | 0.00% | 398,614 | $28,217,883 | $16,343,174 | -$11,874,709 | -42.08% | |
| Russell Investments Group, Ltd. | 0.02% | 395,078 | $27,967,612 | $16,198,198 | -$11,769,414 | -42.08% | |
| Morgan Stanley | 0.00% | 389,554 | $27,576,672 | $15,971,714 | -$11,604,958 | -42.08% | |
| Goldman Sachs Group Inc | 0.00% | 371,392 | $26,290,839 | $15,227,072 | -$11,063,767 | -42.08% | |
| Shannon River Fund Management Llc | 2.34% | 369,776 | $26,176,443 | $15,160,816 | -$11,015,627 | -42.08% | |
| Charles Schwab Investment Management Inc | 0.00% | 367,090 | $25,986,301 | $15,050,690 | -$10,935,611 | -42.08% | |
| Df Dent & Co Inc | 0.48% | 354,951 | $25,127,000 | $14,552,991 | -$10,574,009 | -42.08% | |
| Segall Bryant & Hamill, Llc | 0.29% | 347,244 | $24,581,403 | $14,237,004 | -$10,344,399 | -42.08% | |
| Baillie Gifford & Co | 0.02% | 345,472 | $24,455,963 | $14,164,352 | -$10,291,611 | -42.08% | |
| Silverberg Bernstein Capital Management Llc | 10.67% | 441,964 | $22,562,262 | $18,120,524 | -$4,441,738 | -19.69% | |
| Fmr Llc | 0.00% | 310,389 | $21,972,453 | $12,725,949 | -$9,246,504 | -42.08% | |
| Divisar Capital Management Llc | 5.02% | 307,879 | $21,794,754 | $12,623,039 | -$9,171,715 | -42.08% | |
| Arrowmark Colorado Holdings Llc | 0.81% | 274,537 | $19,434,474 | $11,256,017 | -$8,178,457 | -42.08% | |
| Vanguard Fiduciary Trust Co | 0.00% | 264,958 | $18,756,377 | $10,863,278 | -$7,893,099 | -42.08% | |
| First Trust Advisors Lp | 0.01% | 261,686 | $18,524,751 | $10,729,126 | -$7,795,625 | -42.08% | |
| Bank Of New York Mellon Corp | 0.00% | 208,318 | $14,746,816 | $8,541,038 | -$6,205,778 | -42.08% | |
| Penn Capital Management Company, Llc | 0.91% | 203,136 | $14,394,106 | $8,328,576 | -$6,065,530 | -42.14% | |
| T. Rowe Price Investment Management, Inc. | 0.01% | 203,163 | $14,382,000 | $8,329,683 | -$6,052,317 | -42.08% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | 193,520 | $13,699,281 | $7,934,320 | -$5,764,961 | -42.08% | |
| Rockefeller Capital Management L.P. | 0.02% | 182,442 | $12,915,068 | $7,480,122 | -$5,434,946 | -42.08% | |
| Principal Financial Group Inc | 0.01% | 246,244 | $12,570,756 | $10,096,004 | -$2,474,752 | -19.69% | |
| New York State Common Retirement Fund | 0.01% | 164,574 | $11,650,193 | $6,747,534 | -$4,902,659 | -42.08% | |
| Rice Hall James & Associates, Llc | 0.56% | 163,000 | $11,538,770 | $6,683,000 | -$4,855,770 | -42.08% | |
| Deutsche Bank Ag\ | 0.00% | 132,536 | $9,382,224 | $5,433,976 | -$3,948,248 | -42.08% | |
| Public Sector Pension Investment Board | 0.02% | 129,443 | $9,163,270 | $5,307,163 | -$3,856,107 | -42.08% | |
| Susquehanna International Group, Llp | 0.01% | 126,387 | $8,946,936 | $5,181,867 | -$3,765,069 | -42.08% |
Frequently asked questions about PDFS
Who are the largest institutional holders of PDFS?
The largest institutional holders of PDFS reported in the latest SEC Form 13F filings include Blackrock, Inc., Needham Investment Management Llc, Wasatch Advisors Lp, Vanguard Capital Management Llc, and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported PDFS position.
What is PDFS institutional ownership?
This page tracks PDFS positions reported by institutional investment managers through SEC Form 13F. PDF SOLUTIONS INC (PDFS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own PDFS?
InsiderSet currently tracks 272 institutional managers reporting PDFS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of PDFS shareholders.
How much PDFS stock do institutions own?
Institutional investment managers disclosed approximately $2.72B in PDFS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was PDFS institutional ownership last updated?
The latest PDFS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional PDFS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its PDFS position after the reporting date.
Are institutions buying or selling PDFS?
Institutional buying and selling can be analyzed by comparing PDFS positions across consecutive 13F reporting periods. InsiderSet's PDFS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View PDFS ownership changes.
How has PDFS institutional ownership changed over time?
InsiderSet tracks PDFS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.