News + Filings Holdings
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Atika Capital Management LLC
> RGEN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | REPLIGEN CORP | RGEN | 92,744 | -17 | 13,119,566,000 | -2,497,676,000 | $141,460.00 |
| 03/31/2023 | REPLIGEN CORP | RGEN | 92,761 | 8,761 | 15,617,242,000 | 15,601,525,000 | $168,360.00 |
| 09/30/2022 | REPLIGEN CORP | RGEN | 84,000 | 0 | 15,717,000 | 2,075,000 | $187.11 |
| 06/30/2022 | REPLIGEN CORP | RGEN | 84,000 | 3,000 | 13,642,000 | -1,594,000 | $162.40 |
| 03/31/2022 | REPLIGEN CORP | RGEN | 81,000 | 0 | 15,236,000 | -6,217,000 | $188.10 |
| 12/31/2021 | REPLIGEN CORP | RGEN | 81,000 | -2,400 | 21,453,000 | -2,649,000 | $264.85 |
| 09/30/2021 | REPLIGEN CORP | RGEN | 83,400 | 1,400 | 24,102,000 | 7,733,000 | $288.99 |
| 06/30/2021 | REPLIGEN CORP | RGEN | 82,000 | 0 | 16,369,000 | 427,000 | $199.62 |
| 03/31/2021 | REPLIGEN CORP | RGEN | 82,000 | -12,000 | 15,942,000 | -2,072,000 | $194.41 |
| 12/31/2020 | REPLIGEN CORP | RGEN | 94,000 | 10,500 | 18,014,000 | 5,695,000 | $191.64 |
| 09/30/2020 | REPLIGEN CORP | RGEN | 83,500 | -500 | 12,319,000 | 1,935,000 | $147.53 |
| 06/30/2020 | REPLIGEN CORP | RGEN | 84,000 | -9,300 | 10,384,000 | 1,377,000 | $123.62 |
| 03/31/2020 | REPLIGEN CORP | RGEN | 93,300 | 8,300 | 9,007,000 | 1,145,000 | $96.54 |
| 12/31/2019 | REPLIGEN CORP | RGEN | 85,000 | 15,000 | 7,862,000 | 2,494,000 | $92.49 |
| 09/30/2019 | REPLIGEN CORP | RGEN | 70,000 | 70,000 | 5,368,000 | 5,368,000 | $76.69 |
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