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Campbell & CO Investment Adviser LLC
> PDFS
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | PDF SOLUTIONS INC | PDFS | 25,938 | 20,616 | 1,169,804,000 | 944,151,000 | $45,100.01 |
| 03/31/2023 | PDF SOLUTIONS INC | PDFS | 5,322 | -22,692 | 225,653,000 | -573,306,000 | $42,400.04 |
| 12/31/2022 | PDF SOLUTIONS INC | PDFS | 28,014 | -6,577 | 798,959,000 | 798,110,000 | $28,519.99 |
| 09/30/2022 | PDF SOLUTIONS INC | PDFS | 34,591 | 10,265 | 849,000 | 326,000 | $24.54 |
| 06/30/2022 | PDF SOLUTIONS INC | PDFS | 24,326 | 9,884 | 523,000 | 121,000 | $21.50 |
| 03/31/2022 | PDF SOLUTIONS INC | PDFS | 14,442 | 7,842 | 402,000 | 192,000 | $27.84 |
| 12/31/2021 | PDF SOLUTIONS INC | PDFS | 6,600 | 6,600 | 210,000 | 210,000 | $31.82 |
| 12/31/2019 | PDF SOLUTIONS INC | PDFS | 0 | -22,392 | 0 | -293,000 | |
| 09/30/2019 | PDF SOLUTIONS INC | PDFS | 22,392 | 22,392 | 293,000 | 293,000 | $13.09 |
| 06/30/2017 | PDF SOLUTIONS INC | PDFS | 0 | -9,933 | 0 | -225,000 | |
| 03/31/2017 | PDF SOLUTIONS INC | PDFS | 9,933 | 9,933 | 225,000 | 225,000 | $22.65 |
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