Renaissance Technologies (RenTech)'s GERN Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 1.8 M shares of Geron Corporation (GERN) worth $2.68 M, representing 0.00% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 36 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in GERN, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2025, adding 4.15 M shares. Largest reduction occurred in Q3 2025, reducing 2.63 M shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Geron Corporation (GERN) Holding Value Over Time
Track share changes against reported price movement
Quarterly Geron Corporation (GERN) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +1.06 M | Add 144.11% | 1.8 M | $1.49 |
| Q4 2025 | -1.63 M | Reduce 68.82% | 737,166 | $1.32 |
| Q3 2025 | -2.63 M | Reduce 52.71% | 2.36 M | $1.37 |
| Q2 2025 | -602,000 | Reduce 10.75% | 5 M | $1.41 |
| Q1 2025 | +4.15 M | Add 285.56% | 5.6 M | $1.59 |
| Q4 2024 | +1.45 M | New Buy | 1.45 M | $3.54 |
| Q3 2024 | -781,723 | Sold Out | 0 | $0.00 |
| Q2 2024 | +781,723 | New Buy | 781,723 | $4.24 |
| Q1 2023 | -257,800 | Sold Out | 0 | $0.00 |
| Q4 2022 | +24,100 | Add 10.31% | 257,800 | $0.00 |
| Q3 2022 | +22,500 | Add 10.65% | 233,700 | $2.34 |
| Q2 2022 | -431,100 | Reduce 67.12% | 211,200 | $1.55 |
| Q1 2022 | +395,600 | Add 160.36% | 642,300 | $1.36 |
| Q4 2021 | +246,700 | New Buy | 246,700 | $1.22 |
| Q1 2021 | -982,500 | Sold Out | 0 | $0.00 |
| Q4 2020 | +961,624 | Add 4606.36% | 982,500 | $1.59 |
| Q3 2020 | -7,300 | Reduce 25.91% | 20,876 | $1.72 |
| Q2 2020 | +28,176 | New Buy | 28,176 | $2.16 |
| Q1 2020 | -57,320 | Sold Out | 0 | $0.00 |
| Q4 2019 | +57,320 | New Buy | 57,320 | $1.36 |
| Q1 2018 | -872,115 | Sold Out | 0 | $0.00 |
| Q4 2017 | +222,235 | Add 34.20% | 872,115 | $1.80 |
| Q3 2017 | +126,500 | Add 24.17% | 649,880 | $2.18 |
| Q2 2017 | +162,233 | Add 44.92% | 523,380 | $2.77 |
| Q1 2017 | +361,147 | New Buy | 361,147 | $2.27 |
| Q4 2016 | -515,380 | Sold Out | 0 | $0.00 |
| Q3 2016 | +53,800 | Add 11.66% | 515,380 | $2.26 |
| Q2 2016 | +8,100 | Add 1.79% | 461,580 | $2.68 |
| Q1 2016 | +453,480 | New Buy | 453,480 | $2.92 |
| Q3 2015 | -1.51 M | Sold Out | 0 | $0.00 |
| Q2 2015 | +70,735 | Add 4.93% | 1.51 M | $4.28 |
| Q1 2015 | +1.01 M | Add 233.85% | 1.44 M | $3.77 |
| Q4 2014 | +429,880 | New Buy | 429,880 | $3.25 |
| Q4 2013 | -86,580 | Sold Out | 0 | $0.00 |
| Q3 2013 | -1.01 M | Reduce 92.11% | 86,580 | $3.35 |
| Q2 2013 | +1.1 M | Add 0.00% | 1.1 M | $1.50 |
Renaissance Technologies (RenTech)'s Geron Corporation Investment FAQs
Renaissance Technologies (RenTech) first purchased Geron Corporation (GERN) in Q2 2013, acquiring 1,097,042 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 (RenTech) has held Geron Corporation (GERN) for 36 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to Geron Corporation (GERN) was in Q1 2025, adding 5,601,100 shares worth $8.91 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 1,799,521 shares of Geron Corporation (GERN), valued at approximately $2.68 M.
As of the Q1 2026 filing, Geron Corporation (GERN) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Geron Corporation (GERN) was 5,601,100 shares, as reported at the end of Q1 2025.