Renaissance Technologies's RGEN Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 109,404 shares of Repligen Corporation (RGEN) worth $14.62 M, representing 0.02% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Renaissance Technologies has maintained a long-term strategic position in RGEN, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2020, adding 299,300 shares. Largest reduction occurred in Q2 2017, reducing 329,000 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's Repligen Corporation (RGEN) Holding Value Over Time
Track share changes against reported price movement
Quarterly Repligen Corporation (RGEN) Trades by Renaissance Technologies
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +292,201 | Add 0.00% | 292,200 | $8.24 |
| Q3 2013 | +56,900 | Add 19.47% | 349,100 | $11.09 |
| Q4 2013 | +214,300 | Add 61.39% | 563,400 | $13.64 |
| Q1 2014 | -97,407 | Reduce 17.29% | 465,993 | $12.86 |
| Q2 2014 | +241,207 | Add 51.76% | 707,200 | $22.79 |
| Q3 2014 | +148,304 | Add 20.97% | 855,504 | $19.91 |
| Q4 2014 | -161,200 | Reduce 18.84% | 694,304 | $19.80 |
| Q1 2015 | +165,861 | Add 23.89% | 860,165 | $30.36 |
| Q2 2015 | +89,939 | Add 10.46% | 950,104 | $41.27 |
| Q3 2015 | -75,314 | Reduce 7.93% | 874,790 | $27.85 |
| Q4 2015 | -92,686 | Reduce 10.60% | 782,104 | $28.29 |
| Q1 2016 | +200,300 | Add 25.61% | 982,404 | $26.82 |
| Q2 2016 | +142,400 | Add 14.50% | 1.12 M | $27.36 |
| Q3 2016 | -47,104 | Reduce 4.19% | 1.08 M | $30.19 |
| Q4 2016 | -186,100 | Reduce 17.27% | 891,600 | $30.82 |
| Q1 2017 | -263,200 | Reduce 29.52% | 628,400 | $35.20 |
| Q2 2017 | -329,000 | Reduce 52.36% | 299,400 | $41.44 |
| Q3 2017 | -139,900 | Reduce 46.73% | 159,500 | $38.32 |
| Q4 2017 | -112,300 | Reduce 70.41% | 47,200 | $36.27 |
| Q1 2018 | -47,200 | Sold Out | 47,200 | $0.00 |
| Q4 2018 | +104,104 | New Buy | 104,104 | $52.74 |
| Q1 2019 | +47,900 | Add 46.01% | 152,004 | $59.08 |
| Q2 2019 | -87,404 | Reduce 57.50% | 64,600 | $85.94 |
| Q3 2019 | +165,704 | Add 256.51% | 230,304 | $76.69 |
| Q4 2019 | +14,028 | Add 6.09% | 244,332 | $92.50 |
| Q1 2020 | +134,401 | Add 55.01% | 378,733 | $96.54 |
| Q2 2020 | +299,300 | Add 79.03% | 678,033 | $123.61 |
| Q3 2020 | +216,304 | Add 31.90% | 894,337 | $147.54 |
| Q4 2020 | -227,293 | Reduce 25.41% | 667,044 | $191.63 |
| Q1 2021 | -205,032 | Reduce 30.74% | 462,012 | $194.41 |
| Q2 2021 | -105,796 | Reduce 22.90% | 356,216 | $199.62 |
| Q3 2021 | -160,004 | Reduce 44.92% | 196,212 | $288.99 |
| Q4 2021 | -19,496 | Reduce 9.94% | 176,716 | $264.84 |
| Q1 2022 | +44,100 | Add 24.96% | 220,816 | $188.09 |
| Q2 2022 | +30,900 | Add 13.99% | 251,716 | $162.40 |
| Q3 2022 | -232,804 | Reduce 92.49% | 18,912 | $187.13 |
| Q4 2022 | -18,912 | Sold Out | 18,912 | $0.00 |
| Q2 2024 | +42,204 | New Buy | 42,204 | $126.06 |
| Q3 2024 | -42,204 | Sold Out | 42,204 | $0.00 |
| Q2 2025 | +66,304 | New Buy | 66,304 | $124.38 |
| Q3 2025 | +43,100 | Add 65.00% | 109,404 | $133.67 |
Renaissance Technologies's Repligen Corporation Investment FAQs
Renaissance Technologies first purchased Repligen Corporation (RGEN) in Q2 2013, acquiring 292,200 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held Repligen Corporation (RGEN) for 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's largest addition to Repligen Corporation (RGEN) was in Q2 2020, adding 678,033 shares worth $83.81 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 109,404 shares of Repligen Corporation (RGEN), valued at approximately $14.62 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Repligen Corporation (RGEN) represents approximately 0.02% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's peak holding in Repligen Corporation (RGEN) was 1,124,804 shares, as reported at the end of Q2 2016. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.