Renaissance Technologies (RenTech)'s IOSP Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 118,900 shares of Innospec Inc. (IOSP) worth $8.68 M, representing 0.01% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 48 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in IOSP, representing a significant commitment to this investment thesis. Largest addition occurred in Q2 2015, adding 161,458 shares. Largest reduction occurred in Q2 2017, reducing 154,100 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Innospec (IOSP) Holding Value Over Time
Track share changes against reported price movement
Quarterly Innospec (IOSP) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -1,400 | Reduce 1.16% | 118,900 | $73.02 |
| Q4 2025 | -26,200 | Reduce 17.88% | 120,300 | $76.54 |
| Q3 2025 | -100 | Reduce 0.07% | 146,500 | $77.16 |
| Q2 2025 | +19,700 | Add 15.52% | 146,600 | $84.09 |
| Q1 2025 | +122,100 | Add 2543.75% | 126,900 | $94.75 |
| Q4 2024 | -400 | Reduce 7.69% | 4,800 | $110.06 |
| Q3 2024 | -4,000 | Reduce 43.48% | 5,200 | $113.09 |
| Q2 2024 | +9,200 | New Buy | 9,200 | $123.59 |
| Q1 2024 | -2,600 | Sold Out | 0 | $0.00 |
| Q4 2023 | +2,600 | New Buy | 2,600 | $123.08 |
| Q3 2023 | -30,800 | Sold Out | 0 | $0.00 |
| Q2 2023 | -3,562 | Reduce 10.37% | 30,800 | $0.10 |
| Q1 2023 | +16,362 | Add 90.90% | 34,362 | $0.10 |
| Q4 2022 | -12,900 | Reduce 41.75% | 18,000 | $0.10 |
| Q3 2022 | +4,400 | Add 16.60% | 30,900 | $85.66 |
| Q2 2022 | +26,500 | New Buy | 26,500 | $95.77 |
| Q4 2021 | -22,300 | Sold Out | 0 | $0.00 |
| Q3 2021 | -18,700 | Reduce 45.61% | 22,300 | $84.22 |
| Q2 2021 | +41,000 | New Buy | 41,000 | $90.61 |
| Q4 2020 | -62,000 | Sold Out | 0 | $0.00 |
| Q3 2020 | +57,800 | Add 1376.19% | 62,000 | $63.32 |
| Q2 2020 | -12,100 | Reduce 74.23% | 4,200 | $77.14 |
| Q1 2020 | -700 | Reduce 4.12% | 16,300 | $69.51 |
| Q4 2019 | -10,800 | Reduce 38.85% | 17,000 | $103.41 |
| Q3 2019 | +23,600 | Add 561.90% | 27,800 | $89.14 |
| Q2 2019 | +4,200 | New Buy | 4,200 | $91.19 |
| Q1 2019 | -31,100 | Sold Out | 0 | $0.00 |
| Q4 2018 | +25,200 | Add 427.12% | 31,100 | $61.77 |
| Q3 2018 | +5,900 | New Buy | 5,900 | $76.78 |
| Q4 2017 | -73,000 | Sold Out | 0 | $0.00 |
| Q3 2017 | -21,000 | Reduce 22.34% | 73,000 | $61.64 |
| Q2 2017 | -154,100 | Reduce 62.11% | 94,000 | $65.55 |
| Q1 2017 | +151,700 | Add 157.37% | 248,100 | $64.75 |
| Q4 2016 | -44,400 | Reduce 31.53% | 96,400 | $68.50 |
| Q3 2016 | -18,300 | Reduce 11.50% | 140,800 | $60.81 |
| Q2 2016 | -119,300 | Reduce 42.85% | 159,100 | $45.99 |
| Q1 2016 | +91,005 | Add 48.56% | 278,400 | $43.36 |
| Q4 2015 | +80,995 | Add 76.12% | 187,395 | $54.31 |
| Q3 2015 | -147,958 | Reduce 58.17% | 106,400 | $46.51 |
| Q2 2015 | +161,458 | Add 173.80% | 254,358 | $45.04 |
| Q1 2015 | +92,900 | New Buy | 92,900 | $46.39 |
| Q4 2014 | -13,400 | Sold Out | 0 | $0.00 |
| Q3 2014 | +13,400 | New Buy | 13,400 | $35.90 |
| Q2 2014 | -12,706 | Sold Out | 0 | $0.00 |
| Q1 2014 | -48,394 | Reduce 79.20% | 12,706 | $45.25 |
| Q4 2013 | -57,280 | Reduce 48.39% | 61,100 | $46.22 |
| Q3 2013 | -6,220 | Reduce 4.99% | 118,380 | $46.66 |
| Q2 2013 | +124,600 | Add 0.00% | 124,600 | $40.18 |
Renaissance Technologies (RenTech)'s Innospec Investment FAQs
Renaissance Technologies (RenTech) first purchased Innospec Inc. (IOSP) in Q2 2013, acquiring 124,600 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 Innospec Inc. (IOSP) for 48 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to Innospec Inc. (IOSP) was in Q2 2015, adding 254,358 shares worth $11.46 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 118,900 shares of Innospec Inc. (IOSP), valued at approximately $8.68 M.
As of the Q1 2026 filing, Innospec Inc. (IOSP) 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 Innospec Inc. (IOSP) was 278,400 shares, as reported at the end of Q1 2016.