IOSP — INNOSPEC INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Dividends
Measured signals that fired on IOSP
| date | signal | measured base rate |
|---|---|---|
| 2026-08-06 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-08-05 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-08-03 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-08-03 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-07-22 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-05-27 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-03-03 | Jones David B. SVP, GC & CCO | Open-market sale | 1.0K | 75.64 | 77.8K |
| 2026-02-27 | Williams Patrick PRESIDENT & CEO | Shares withheld for tax | 8.0K | 78.34 | 624.1K |
| 2026-02-27 | Cleminson Ian EVP & CFO | Open-market sale | 2.4K | 76.56 | 182.2K |
| 2026-02-27 | Cleminson Ian EVP & CFO | Open-market sale | 1.2K | 76.79 | 94.5K |
| 2026-02-27 | Cleminson Ian EVP & CFO | Open-market sale | 1.1K | 76.30 | 87.7K |
| 2026-02-27 | Jones David B. SVP, GC & CCO | Shares withheld for tax | 875 | 78.34 | 68.5K |
| 2026-02-27 | Blackmore Milton C Director | Open-market sale | 594 | 76.56 | 45.5K |
| 2026-02-27 | PADFIELD Larry Director | Open-market sale | 594 | 76.56 | 45.5K |
| 2026-02-27 | LANDLESS DAVID Director | Open-market sale | 594 | 76.56 | 45.5K |
| 2026-02-27 | GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES | Shares withheld for tax | 401 | 78.34 | 31.4K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 283.2M | 3.9M |
| Allspring Global Investments Holdings, LLC | 170.5M | 2.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 135.8M | 1.9M |
| DIMENSIONAL FUND ADVISORS LP | 90.7M | 1.2M |
| VANGUARD CAPITAL MANAGEMENT LLC | 81.4M | 1.1M |
| STATE STREET CORP | 70.4M | 964.3K |
| VICTORY CAPITAL MANAGEMENT INC | 63.2M | 865.0K |
| Nuveen, LLC | 47.0M | 643.2K |
| GEODE CAPITAL MANAGEMENT, LLC | 46.1M | 630.6K |
| TWO SIGMA INVESTMENTS, LP | 43.3M | 593.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Innospec (IOSP) Q2 2026 Earnings Call Transcript · 2026-08-12
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