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Impax Asset Management Group Plc
> ALTR
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Altair Engineering Inc. | ALTR | 1,992,617 | -170,154 | 150,339,680,000 | -4,805,562,000 | $75,448.36 |
| 03/31/2023 | Altair Engineering Inc. | ALTR | 2,162,771 | -266,626 | 155,145,242,000 | 155,038,400,000 | $71,734.47 |
| 09/30/2022 | Altair Engineering Inc. | ALTR | 2,429,397 | 312,662 | 106,842,000 | -3,670,000 | $43.98 |
| 06/30/2022 | Altair Engineering Inc. | ALTR | 2,116,735 | -36,522 | 110,512,000 | -27,461,000 | $52.21 |
| 03/31/2022 | Altair Engineering Inc. | ALTR | 2,153,257 | -117,682 | 137,973,000 | -36,779,000 | $64.08 |
| 12/31/2021 | Altair Engineering Inc. | ALTR | 2,270,939 | 197,646 | 174,752,000 | 32,565,000 | $76.95 |
| 09/30/2021 | Altair Engineering Inc. | ALTR | 2,073,293 | -301,374 | 142,187,000 | -5,499,000 | $68.58 |
| 03/31/2021 | Altair Engineering Inc. | ALTR | 2,374,667 | -14,598 | 147,686,000 | 9,598,000 | $62.19 |
| 12/31/2020 | Altair Engineering Inc. | ALTR | 2,389,265 | 140,627 | 138,088,000 | 44,354,000 | $57.80 |
| 09/30/2020 | Altair Engineering Inc. | ALTR | 2,248,638 | 333,663 | 93,734,000 | 17,614,000 | $41.68 |
| 06/30/2020 | Altair Engineering Inc. | ALTR | 1,914,975 | 92,702 | 76,120,000 | 28,210,000 | $39.75 |
| 03/31/2020 | Altair Engineering Inc. | ALTR | 1,822,273 | 266,195 | 47,910,000 | -7,497,000 | $26.29 |
| 12/31/2019 | Altair Engineering Inc. | ALTR | 1,556,078 | 489,423 | 55,407,000 | 18,935,000 | $35.61 |
| 09/30/2019 | Altair Engineering Inc. | ALTR | 1,066,655 | 1,066,655 | 36,472,000 | 36,472,000 | $34.19 |
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