Renaissance Technologies (RenTech)'s CLIR Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC (Rentech)) currently holds 7,780 shares of ClearSign Technologies Corporation (CLIR) worth $43,265, representing 0.00% of the portfolio. First purchased in 2021-Q1, this medium-term investment has been held for 10 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in CLIR, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2024, adding 5,850 shares. Largest reduction occurred in Q2 2021, reducing 4,660 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s ClearSign Technologies Corporation (CLIR) Holding Value Over Time
Track share changes against reported price movement
Quarterly ClearSign Technologies Corporation (CLIR) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +3,677 | Add 89.62% | 7,780 | $5.56 |
| Q3 2025 | -1,697 | Reduce 29.26% | 4,103 | $7.71 |
| Q2 2025 | -1,702 | Reduce 22.69% | 5,800 | $5.60 |
| Q1 2025 | +1,652 | Add 28.24% | 7,502 | $7.50 |
| Q4 2024 | +5,850 | New Buy | 5,850 | $14.40 |
| Q4 2023 | -2,120 | Sold Out | 0 | $0.00 |
| Q3 2023 | -805 | Reduce 27.52% | 2,120 | $10.85 |
| Q2 2023 | +2,925 | New Buy | 2,925 | $0.01 |
| Q2 2021 | -4,660 | Sold Out | 0 | $0.00 |
| Q1 2021 | +4,660 | New Buy | 4,660 | $56.87 |
Renaissance Technologies (RenTech)'s ClearSign Technologies Corporation Investment FAQs
Renaissance Technologies (RenTech) first purchased ClearSign Technologies Corporation (CLIR) in Q1 2021, acquiring 4,660 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 ClearSign Technologies Corporation (CLIR) for 10 quarters since Q1 2021.
Renaissance Technologies (RenTech)'s largest addition to ClearSign Technologies Corporation (CLIR) was in Q4 2024, adding 5,850 shares worth $84,240.
According to the latest 13F filing for Q4 2025, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC (Rentech), owns 7,780 shares of ClearSign Technologies Corporation (CLIR), valued at approximately $43,265.
As of the Q4 2025 filing, ClearSign Technologies Corporation (CLIR) 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 ClearSign Technologies Corporation (CLIR) was 7,780 shares, as reported at the end of Q4 2025.