Innospec Inc.
IOSP- Exchange
- Nasdaq
- Industry
- Chemicals & Allied Products
- SEC CIK
- 0001054905
In the last 90 days, Innospec Inc. insiders filed 1 open-market purchase and 0 sales; 281 institutions reported holding it in 13F filings for Q2 2026, worth $2.00B in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 13, 2026
- $1.98B
- Insider buysLast 90 days, $27.5K in total
- 1
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +17 vs. previous quarter
- 281
- 13F valueReported value at the end of Q2 2026
- $2.00B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $1.78B
- −3.7% year over year
- Net income, FY2025
- $116.6M
- +227.5% year over year
- Free cash flow, FY2025
- $88.0M
- −38.5% year over year
- Revenue, Q3 FY2026
- $473.6M
- +7.2% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 456.5K
- Shares sold short
- Change
- −26.7K
- −5.5% vs. previous
- Days to cover
- 1.89
- At average daily volume
Superinvestors holding IOSP, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding IOSP at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Innospec Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 12, 2026 (view filing)7:16 PM ET | Nov 10 | 2 days | Parrette Leslie JDirector | PPurchase | +345 | $79.69 | +$27.5K | +4.7%7.72K after | |
| Mar 6, 2026 (view filing) | Feb 27 | 7 days | Blackmore Milton CDirector | SSale | −594 | $76.55 | −$45.5K | −5.3%10.5K after | Amended2 lots |
| Mar 6, 2026 (view filing) | Feb 27 | 7 days | PADFIELD LarryDirector | SSale | −594 | $76.55 | −$45.5K | −5.9%9.45K after | Amended2 lots |
| Mar 6, 2026 (view filing) | Feb 27 | 7 days | Poccia ClaudiaDirector | SSale | −119 | $76.56 | −$9.11K | −1.8%6.51K after | Amended2 lots |
| Mar 6, 2026 (view filing) | Feb 27 | 7 days | Landless DavidDirector | SSale | −594 | $76.55 | −$45.5K | −7.2%7.63K after | Amended2 lots |
| Mar 6, 2026 (view filing) | Feb 27 | 7 days | Cleminson IanEVP & CFO | SSale | −2.38K | $76.55 | −$182.2K | −10.5%20.4K after | Amended2 lots |
| Mar 3, 2026 (view filing) | Mar 3 | Same day | Jones David B.SVP, GC & CCO | SSale | −1.03K | $75.64 | −$77.8K | −6.5%14.7K after | |
| Feb 24, 2026 (view filing) | Feb 20 | 4 days | Blackmore Milton CDirector | SSale | −1.03K | $81.84 | −$84.3K | −9.7%9.59K after | |
| Feb 24, 2026 (view filing) | Feb 20 | 4 days | PADFIELD LarryDirector | SSale | −1.03K | $81.84 | −$84.3K | −10.8%8.51K after | |
| Nov 17, 2025 (view filing) | Nov 14 | 3 days | Parrette Leslie JDirector | PPurchase | +340 | $74.09 | +$25.2K | +6.2%5.84K after |
Top 10 13F holders, Q2 2026
See all 281 holdersThe largest institutional positions in Innospec Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,381,323 | $356.6M | 0.01% | +502,348+13.0% | Added |
| Allspring Global Investments Holdings, LLC | 1,892,471 | $154.7M | 0.24% | −423,471−18.3% | Reduced |
| Vanguard Portfolio Management LLC | 1,884,244 | $153.4M | 0.01% | +24,153+1.3% | Added |
| Dimensional Fund Advisors LP | 1,305,038 | $106.2M | 0.02% | +62,949+5.1% | Added |
| Vanguard Capital Management LLC | 1,108,107 | $90.2M | 0.00% | −6,491−0.6% | Reduced |
| State Street Corp | 996,027 | $81.1M | 0.00% | +31,692+3.3% | Added |
| Nuveen, LLC | 755,723 | $61.5M | 0.01% | +112,475+17.5% | Added |
| Geode Capital Management, LLC | 666,589 | $54.3M | 0.00% | +35,997+5.7% | Added |
| Goldman Sachs Group Inc | 662,210 | $53.9M | 0.01% | +170,199+34.6% | Added |
| Victory Capital Management Inc | 660,110 | $53.7M | 0.03% | −204,884−23.7% | Reduced |
Holders of 5% or more of IOSP
See all 4 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Innospec Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 14.70%3.68M shares | – | Apr 30, 20251 filing | Apr 30, 2025 | SEC |
| Vanguard Portfolio Management LLC | 13G | 7.51%1.87M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Dimensional Fund Advisors LP | 13G | 5.30%1.31M shares | – | Feb 12, 20213 filings | Jul 14, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.22%1.30M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |