Renaissance Technologies (RenTech)'s ANAB Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 90,900 shares of AnaptysBio, Inc. (ANAB) worth $5.04 M, representing 0.01% of the portfolio. First purchased in 2017-Q3, this long-term strategic position has been held for 29 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in ANAB, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2020, adding 201,100 shares. Largest reduction occurred in Q2 2020, reducing 293,500 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s AnaptysBio (ANAB) Holding Value Over Time
Track share changes against reported price movement
Quarterly AnaptysBio (ANAB) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +14,600 | Add 19.13% | 90,900 | $55.46 |
| Q4 2025 | -47,000 | Reduce 38.12% | 76,300 | $48.48 |
| Q3 2025 | -139,786 | Reduce 53.13% | 123,300 | $30.62 |
| Q2 2025 | -75,614 | Reduce 22.32% | 263,086 | $22.20 |
| Q1 2025 | +145,500 | Add 75.31% | 338,700 | $18.59 |
| Q4 2024 | -7,200 | Reduce 3.59% | 193,200 | $13.24 |
| Q3 2024 | +47,698 | Add 31.24% | 200,400 | $33.50 |
| Q2 2024 | +52,502 | Add 52.40% | 152,702 | $25.06 |
| Q1 2024 | +4,600 | Add 4.81% | 100,200 | $22.52 |
| Q4 2023 | +2,900 | Add 3.13% | 95,600 | $21.42 |
| Q3 2023 | +34,700 | Add 59.83% | 92,700 | $17.96 |
| Q2 2023 | -13,600 | Reduce 18.99% | 58,000 | $0.02 |
| Q1 2023 | +71,600 | New Buy | 71,600 | $0.02 |
| Q3 2022 | -29,600 | Sold Out | 0 | $0.00 |
| Q2 2022 | -28,700 | Reduce 49.23% | 29,600 | $20.30 |
| Q1 2022 | +23,700 | Add 68.50% | 58,300 | $24.73 |
| Q4 2021 | -34,100 | Reduce 49.64% | 34,600 | $34.74 |
| Q3 2021 | -155,600 | Reduce 69.37% | 68,700 | $27.12 |
| Q2 2021 | -6,482 | Reduce 2.81% | 224,300 | $25.93 |
| Q1 2021 | +96,182 | Add 71.46% | 230,782 | $21.55 |
| Q4 2020 | +107,800 | Add 402.24% | 134,600 | $21.50 |
| Q3 2020 | +26,800 | New Buy | 26,800 | $14.74 |
| Q2 2020 | -293,500 | Sold Out | 0 | $0.00 |
| Q1 2020 | +201,100 | Add 217.64% | 293,500 | $14.13 |
| Q4 2019 | +92,400 | New Buy | 92,400 | $16.26 |
| Q2 2018 | -59,400 | Sold Out | 0 | $0.00 |
| Q1 2018 | -68,100 | Reduce 53.41% | 59,400 | $104.07 |
| Q4 2017 | +29,700 | Add 30.37% | 127,500 | $100.72 |
| Q3 2017 | +97,800 | New Buy | 97,800 | $34.95 |
Renaissance Technologies (RenTech)'s AnaptysBio Investment FAQs
Renaissance Technologies (RenTech) first purchased AnaptysBio, Inc. (ANAB) in Q3 2017, acquiring 97,800 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 AnaptysBio, Inc. (ANAB) for 29 quarters since Q3 2017.
Renaissance Technologies (RenTech)'s largest addition to AnaptysBio, Inc. (ANAB) was in Q1 2020, adding 293,500 shares worth $4.15 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 90,900 shares of AnaptysBio, Inc. (ANAB), valued at approximately $5.04 M.
As of the Q1 2026 filing, AnaptysBio, Inc. (ANAB) represents approximately 0.01% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in AnaptysBio, Inc. (ANAB) was 338,700 shares, as reported at the end of Q1 2025.