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OBERWEIS ASSET MANAGEMENT INC
> PI
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | IMPINJ INC | PI | 179,145 | 32,870 | 16,060,349,000 | -3,762,839,000 | $89,650.00 |
| 03/31/2023 | IMPINJ INC | PI | 146,275 | 35,610 | 19,823,188,000 | 7,740,783,000 | $135,520.00 |
| 12/31/2022 | IMPINJ INC | PI | 110,665 | 74,965 | 12,082,405,000 | 12,079,548,000 | $109,180.00 |
| 09/30/2022 | IMPINJ INC | PI | 35,700 | 6,700 | 2,857,000 | 1,156,000 | $80.03 |
| 06/30/2022 | IMPINJ INC | PI | 29,000 | 4,300 | 1,701,000 | 132,000 | $58.66 |
| 03/31/2022 | IMPINJ INC | PI | 24,700 | 24,700 | 1,569,000 | 1,569,000 | $63.52 |
| 09/30/2020 | IMPINJ INC | PI | 0 | -16,800 | 0 | -461,000 | |
| 06/30/2020 | IMPINJ INC | PI | 16,800 | -4,200 | 461,000 | 110,000 | $27.44 |
| 03/31/2020 | IMPINJ INC | PI | 21,000 | -14,300 | 351,000 | -562,000 | $16.71 |
| 12/31/2019 | IMPINJ INC | PI | 35,300 | -1,300 | 913,000 | -215,000 | $25.86 |
| 09/30/2019 | IMPINJ INC | PI | 36,600 | 36,600 | 1,128,000 | 1,128,000 | $30.82 |
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