Renaissance Technologies (RenTech)'s STRO Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 97,824 shares of Sutro Biopharma, Inc. (STRO) worth $2.44 M, representing 0.00% of the portfolio. First purchased in 2019-Q4, this long-term strategic position has been held for 24 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in STRO, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2025, adding 51,160 shares. Largest reduction occurred in Q1 2026, reducing 25,041 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Sutro Biopharma (STRO) Holding Value Over Time
Track share changes against reported price movement
Quarterly Sutro Biopharma (STRO) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -25,041 | Reduce 20.38% | 97,824 | $24.91 |
| Q4 2025 | -19,615 | Reduce 13.77% | 122,865 | $11.57 |
| Q3 2025 | +51,160 | Add 56.02% | 142,480 | $8.68 |
| Q2 2025 | +4,420 | Add 5.09% | 91,320 | $7.14 |
| Q1 2025 | -14,621 | Reduce 14.40% | 86,900 | $6.51 |
| Q4 2024 | +18,711 | Add 22.60% | 101,521 | $18.40 |
| Q3 2024 | +10,860 | Add 15.09% | 82,810 | $34.60 |
| Q2 2024 | +23,370 | Add 48.11% | 71,950 | $29.30 |
| Q1 2024 | -17,000 | Reduce 25.92% | 48,580 | $56.50 |
| Q4 2023 | +35,290 | Add 116.51% | 65,580 | $42.89 |
| Q3 2023 | +3,340 | Add 12.39% | 30,290 | $34.70 |
| Q2 2023 | +14,010 | Add 108.27% | 26,950 | $0.05 |
| Q1 2023 | +9,950 | Add 332.78% | 12,940 | $0.05 |
| Q4 2022 | -18,600 | Reduce 86.15% | 2,990 | $0.08 |
| Q3 2022 | +6,820 | Add 46.17% | 21,590 | $55.49 |
| Q2 2022 | +14,770 | New Buy | 14,770 | $52.13 |
| Q1 2022 | -4,870 | Sold Out | 0 | $0.00 |
| Q4 2021 | +4,870 | New Buy | 4,870 | $148.87 |
| Q1 2021 | -3,001 | Sold Out | 0 | $0.00 |
| Q4 2020 | +3,001 | New Buy | 3,001 | $217.26 |
| Q3 2020 | -14,951 | Sold Out | 0 | $0.00 |
| Q2 2020 | +14,951 | New Buy | 14,951 | $77.59 |
| Q1 2020 | -1,030 | Sold Out | 0 | $0.00 |
| Q4 2019 | +1,030 | New Buy | 1,030 | $109.71 |
Renaissance Technologies (RenTech)'s Sutro Biopharma Investment FAQs
Renaissance Technologies (RenTech) first purchased Sutro Biopharma, Inc. (STRO) in Q4 2019, acquiring 1,030 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 Sutro Biopharma, Inc. (STRO) for 24 quarters since Q4 2019.
Renaissance Technologies (RenTech)'s largest addition to Sutro Biopharma, Inc. (STRO) was in Q3 2025, adding 142,480 shares worth $1.24 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 97,824 shares of Sutro Biopharma, Inc. (STRO), valued at approximately $2.44 M.
As of the Q1 2026 filing, Sutro Biopharma, Inc. (STRO) 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 Sutro Biopharma, Inc. (STRO) was 142,480 shares, as reported at the end of Q3 2025.