News + Filings Holdings
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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
> RGEN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2023 | REPLIGEN CORP | RGEN | 911,368 | 237,796 | 153,437,916,000 | 39,395,441,000 | $168,360.00 |
| 12/31/2022 | REPLIGEN CORP | RGEN | 673,572 | 126,188 | 114,042,475,000 | 113,940,054,000 | $169,310.00 |
| 09/30/2022 | REPLIGEN CORP | RGEN | 547,384 | -185,702 | 102,421,000 | -16,632,000 | $187.11 |
| 06/30/2022 | REPLIGEN CORP | RGEN | 733,086 | 733,086 | 119,053,000 | 119,053,000 | $162.40 |
| 12/31/2018 | REPLIGEN CORP | RGEN | 0 | -1,363,109 | 0 | -75,598,000 | |
| 09/30/2018 | REPLIGEN CORP | RGEN | 1,363,109 | -443,195 | 75,598,000 | -9,371,000 | $55.46 |
| 06/30/2018 | REPLIGEN CORP | RGEN | 1,806,304 | -399 | 84,969,000 | 19,602,000 | $47.04 |
| 03/31/2018 | REPLIGEN CORP | RGEN | 1,806,703 | 4,134 | 65,367,000 | -30,000 | $36.18 |
| 12/31/2017 | REPLIGEN CORP | RGEN | 1,802,569 | 742,634 | 65,397,000 | 24,780,000 | $36.28 |
| 09/30/2017 | REPLIGEN CORP | RGEN | 1,059,935 | 959 | 40,617,000 | -3,267,000 | $38.32 |
| 06/30/2017 | REPLIGEN CORP | RGEN | 1,058,976 | 352,045 | 43,884,000 | 19,000,000 | $41.44 |
| 03/31/2017 | REPLIGEN CORP | RGEN | 706,931 | 30,198 | 24,884,000 | 4,027,000 | $35.20 |
| 12/31/2016 | REPLIGEN CORP | RGEN | 676,733 | 5,820 | 20,857,000 | 602,000 | $30.82 |
| 09/30/2016 | REPLIGEN CORP | RGEN | 670,913 | -126,031 | 20,255,000 | -1,549,000 | $30.19 |
| 06/30/2016 | REPLIGEN CORP | RGEN | 796,944 | 630,939 | 21,804,000 | 17,181,000 | $27.36 |
| 03/31/2016 | REPLIGEN CORP | RGEN | 285,648 | 119,643 | 7,661,000 | 3,038,000 | $26.82 |
| 12/31/2015 | REPLIGEN CORP | RGEN | 160,893 | -5,112 | 4,552,000 | -71,000 | $28.29 |
| 09/30/2015 | REPLIGEN CORP | RGEN | 166,005 | 166,005 | 4,623,000 | 4,623,000 | $27.85 |
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