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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
> PDFS
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2023 | PDF SOLUTIONS INC | PDFS | 784,917 | -54,923 | 33,280,481,000 | 9,328,244,000 | $42,400.00 |
| 12/31/2022 | PDF SOLUTIONS INC | PDFS | 839,840 | 4,579 | 23,952,237,000 | 23,931,748,000 | $28,520.00 |
| 09/30/2022 | PDF SOLUTIONS INC | PDFS | 835,261 | 41,898 | 20,489,000 | 3,424,000 | $24.53 |
| 06/30/2022 | PDF SOLUTIONS INC | PDFS | 793,363 | 8,061 | 17,065,000 | -4,821,000 | $21.51 |
| 03/31/2022 | PDF SOLUTIONS INC | PDFS | 785,302 | -313,252 | 21,886,000 | -13,037,000 | $27.87 |
| 12/31/2021 | PDF SOLUTIONS INC | PDFS | 1,098,554 | -40,986 | 34,923,000 | 8,668,000 | $31.79 |
| 09/30/2021 | PDF SOLUTIONS INC | PDFS | 1,139,540 | 353,005 | 26,255,000 | 11,956,000 | $23.04 |
| 06/30/2021 | PDF SOLUTIONS INC | PDFS | 786,535 | -17,713 | 14,299,000 | -1,000 | $18.18 |
| 03/31/2021 | PDF SOLUTIONS INC | PDFS | 804,248 | 59,575 | 14,300,000 | -1,785,000 | $17.78 |
| 12/31/2020 | PDF SOLUTIONS INC | PDFS | 744,673 | 111,334 | 16,085,000 | 4,235,000 | $21.60 |
| 09/30/2020 | PDF SOLUTIONS INC | PDFS | 633,339 | 154,227 | 11,850,000 | 2,479,000 | $18.71 |
| 06/30/2020 | PDF SOLUTIONS INC | PDFS | 479,112 | 479,112 | 9,371,000 | 9,371,000 | $19.56 |
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