Renaissance Technologies (RenTech)'s OABI Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 269,600 shares of OmniAb, Inc. (OABI) worth $423,272, representing 0.00% of the portfolio. First purchased in 2023-Q2, this medium-term investment has been held for 9 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in OABI, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2025, adding 680,950 shares. Largest reduction occurred in Q4 2025, reducing 280,754 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s OmniAb (OABI) Holding Value Over Time
Track share changes against reported price movement
Quarterly OmniAb (OABI) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +26,900 | Add 11.08% | 269,600 | $1.57 |
| Q4 2025 | -280,754 | Reduce 53.63% | 242,700 | $1.85 |
| Q3 2025 | -184,096 | Reduce 26.02% | 523,454 | $1.60 |
| Q2 2025 | +680,950 | Add 2559.96% | 707,550 | $1.74 |
| Q1 2025 | +26,600 | New Buy | 26,600 | $2.40 |
| Q1 2024 | -40,959 | Sold Out | 0 | $0.00 |
| Q4 2023 | -39,000 | Reduce 48.77% | 40,959 | $6.18 |
| Q3 2023 | -59,900 | Reduce 42.83% | 79,959 | $5.19 |
| Q2 2023 | +139,859 | New Buy | 139,859 | $0.01 |
Renaissance Technologies (RenTech)'s OmniAb Investment FAQs
Renaissance Technologies (RenTech) first purchased OmniAb, Inc. (OABI) in Q2 2023, acquiring 139,859 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 OmniAb, Inc. (OABI) for 9 quarters since Q2 2023.
Renaissance Technologies (RenTech)'s largest addition to OmniAb, Inc. (OABI) was in Q2 2025, adding 707,550 shares worth $1.23 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 269,600 shares of OmniAb, Inc. (OABI), valued at approximately $423,272.
As of the Q1 2026 filing, OmniAb, Inc. (OABI) 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 OmniAb, Inc. (OABI) was 707,550 shares, as reported at the end of Q2 2025.