Renaissance Technologies (RenTech)'s ASMB Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 39,441 shares of Assembly Biosciences, Inc. (ASMB) worth $1.08 M, representing 0.00% of the portfolio. First purchased in 2014-Q3, this long-term strategic position has been held for 46 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in ASMB, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2025, adding 46,090 shares. Largest reduction occurred in Q4 2025, reducing 144,371 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Assembly Biosciences (ASMB) Holding Value Over Time
Track share changes against reported price movement
Quarterly Assembly Biosciences (ASMB) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +23,790 | Add 152.00% | 39,441 | $27.48 |
| Q1 2026 | +6,411 | Add 69.38% | 15,651 | $27.75 |
| Q4 2025 | -144,371 | Reduce 93.98% | 9,240 | $34.01 |
| Q3 2025 | +46,090 | Add 42.87% | 153,611 | $25.60 |
| Q2 2025 | -5,790 | Reduce 5.11% | 107,521 | $18.12 |
| Q1 2025 | +18,600 | Add 19.64% | 113,311 | $9.56 |
| Q4 2024 | +29,087 | Add 44.32% | 94,711 | $15.78 |
| Q3 2024 | +10,713 | Add 19.51% | 65,624 | $15.14 |
| Q2 2024 | +15,451 | Add 39.16% | 54,911 | $13.72 |
| Q1 2024 | +3,584 | Add 9.99% | 39,460 | $13.30 |
| Q4 2023 | -5,265 | Reduce 12.80% | 35,876 | $9.84 |
| Q3 2023 | -17,026 | Reduce 29.27% | 41,141 | $10.62 |
| Q2 2023 | -5,650 | Reduce 8.85% | 58,167 | $0.01 |
| Q1 2023 | +21,868 | Add 52.13% | 63,817 | $0.01 |
| Q4 2022 | +18,432 | Add 78.38% | 41,949 | $0.02 |
| Q3 2022 | +4,575 | Add 24.15% | 23,517 | $19.69 |
| Q2 2022 | +7,617 | Add 67.26% | 18,942 | $25.18 |
| Q1 2022 | -44,594 | Reduce 79.75% | 11,325 | $24.72 |
| Q4 2021 | +45,036 | Add 413.82% | 55,919 | $27.95 |
| Q3 2021 | -18,770 | Reduce 63.30% | 10,883 | $41.72 |
| Q2 2021 | -18,458 | Reduce 38.37% | 29,653 | $46.57 |
| Q1 2021 | +14,778 | Add 44.33% | 48,111 | $55.21 |
| Q4 2020 | +26,143 | Add 363.60% | 33,333 | $72.60 |
| Q3 2020 | +1,553 | Add 27.55% | 7,190 | $197.36 |
| Q2 2020 | +1,317 | Add 30.49% | 5,637 | $279.76 |
| Q1 2020 | -12,692 | Reduce 74.61% | 4,320 | $178.01 |
| Q4 2019 | +6,596 | Add 63.33% | 17,012 | $245.53 |
| Q3 2019 | -692 | Reduce 6.23% | 10,416 | $117.99 |
| Q2 2019 | +8,575 | Add 338.53% | 11,108 | $161.87 |
| Q1 2019 | -1,050 | Reduce 29.31% | 2,533 | $236.48 |
| Q4 2018 | -3,250 | Reduce 47.56% | 3,583 | $271.56 |
| Q3 2018 | -2,734 | Reduce 28.58% | 6,833 | $445.63 |
| Q2 2018 | -4,350 | Reduce 31.26% | 9,567 | $470.47 |
| Q1 2018 | -1,891 | Reduce 11.96% | 13,917 | $589.64 |
| Q4 2017 | +558 | Add 3.66% | 15,808 | $543.02 |
| Q3 2017 | +3,258 | Add 27.17% | 15,250 | $419.02 |
| Q2 2017 | +11,200 | Add 1414.14% | 11,992 | $247.83 |
| Q1 2017 | +792 | New Buy | 792 | $305.56 |
| Q2 2016 | -2,650 | Sold Out | 0 | $0.00 |
| Q1 2016 | +1,658 | Add 167.14% | 2,650 | $60.38 |
| Q4 2015 | +992 | New Buy | 992 | $89.72 |
| Q3 2015 | -963 | Sold Out | 0 | $0.00 |
| Q2 2015 | -1,050 | Reduce 52.16% | 963 | $231.57 |
| Q1 2015 | +408 | Add 25.42% | 2,013 | $158.97 |
| Q4 2014 | +275 | Add 20.68% | 1,605 | $94.08 |
| Q3 2014 | +1,330 | New Buy | 1,330 | $98.50 |
Renaissance Technologies (RenTech)'s Assembly Biosciences Investment FAQs
Renaissance Technologies (RenTech) first purchased Assembly Biosciences, Inc. (ASMB) in Q3 2014, acquiring 1,330 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 Assembly Biosciences, Inc. (ASMB) for 46 quarters since Q3 2014.
Renaissance Technologies (RenTech)'s largest addition to Assembly Biosciences, Inc. (ASMB) was in Q3 2025, adding 153,611 shares worth $3.93 M.
According to the latest 13F filing for Q2 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 39,441 shares of Assembly Biosciences, Inc. (ASMB), valued at approximately $1.08 M.
As of the Q2 2026 filing, Assembly Biosciences, Inc. (ASMB) 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 Assembly Biosciences, Inc. (ASMB) was 153,611 shares, as reported at the end of Q3 2025.