IOSPNasdaqChemicals & Allied ProductsFiscal year ends December 31
INNOSPEC INC.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026
$97.99+1.18 (+1.22%)
Close on Oct 19, 2026
- Market cap
- $2.42B
- P/E (TTM)
- 21.0
- Dividend yield
- 1.75%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
25M of 25M shares
Institutional holders
282
46 new, 27 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
1 buys · 18 sales
Net sold $876.64K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 3,681,666 | 14.70% | 13G (passive) amendment | Mar 31, 2025 |
| Vanguard Portfolio Management | 1,870,254 | 7.51% | 13G (passive) | Mar 31, 2026 |
| Dimensional Fund Advisors LP | 1,305,038 | 5.30% | 13G (passive) | Jun 30, 2026 |
| Vanguard Capital Management | 1,300,194 | 5.22% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of IOSP | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,381,323 | 17.79% | $356.60M | +502,348 | 0.01% |
| Allspring Global Investments Holdings, LLC | 1,892,471 | 7.68% | $154.75M | −423,471 | 0.24% |
| Vanguard Portfolio Management LLC | 1,884,244 | 7.65% | $153.36M | +24,153 | 0.01% |
| Dimensional Fund Advisors LP | 1,305,038 | 5.30% | $106.22M | +62,949 | 0.02% |
| Vanguard Capital Management LLC | 1,108,107 | 4.50% | $90.19M | −6,491 | 0.00% |
| State Street Corp | 996,027 | 4.04% | $81.07M | +31,692 | 0.00% |
| Nuveen, LLC | 755,723 | 3.07% | $61.51M | +112,475 | 0.01% |
| Geode Capital Management, LLC | 666,589 | 2.71% | $54.26M | +35,997 | 0.00% |
| Goldman Sachs Group Inc | 662,210 | 2.69% | $53.90M | +170,199 | 0.00% |
| Victory Capital Management Inc | 660,110 | 2.68% | $53.73M | −204,884 | 0.03% |
| Two Sigma Investments, LP | 568,709 | 2.31% | $46.29M | −24,330 | 0.03% |
| Assenagon Asset Management S.A. | 545,564 | 2.21% | $44.40M | +54,680 | 0.03% |
| Aqr Capital Management LLC | 482,545 | 1.96% | $39.27M | +170,480 | 0.01% |
| Brown Advisory Inc | 408,468 | 1.66% | $33.25M | +112,003 | 0.05% |
| JPMorgan Chase & Co | 370,574 | 1.50% | $30.00M | −55,476 | 0.00% |
| Charles Schwab Investment Management Inc | 355,658 | 1.44% | $28.95M | −10,216 | 0.00% |
| Gendell Jeffrey L | 324,504 | 1.32% | $26.41M | +30,000 | 0.23% |
| Royce & Associates LP | 308,726 | 1.25% | $25.13M | +47,390 | 0.20% |
| Northern Trust Corp | 303,044 | 1.23% | $24.66M | +18,805 | 0.00% |
| Qube Research & Technologies Ltd | 285,849 | 1.16% | $23.27M | −120,775 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 282 | 25M | 100.0% | 46 / 104 | 96 / 27 | 3M | 3M |
| Q1 2026 | 266 | 25M | 100.0% | 41 / 113 | 80 / 30 | 6M | 3M |
| Q4 2025 | 260 | 24M | 98.7% | 30 / 105 | 91 / 31 | 2M | 2M |
| Q3 2025 | 267 | 24M | 98.6% | 32 / 110 | 96 / 24 | 2M | 2M |
| Q2 2025 | 262 | 24M | 97.7% | 31 / 111 | 85 / 40 | 2M | 3M |
| Q1 2025 | 272 | 25M | 100.0% | 44 / 96 | 92 / 32 | 4M | 3M |
| Q4 2024 | 262 | 24M | 98.3% | 35 / 94 | 92 / 29 | 1M | 1M |
| Q3 2024 | 260 | 24M | 98.9% | 32 / 88 | 106 / 36 | 5M | 1M |
| Q2 2024 | 265 | 24M | 98.2% | 42 / 101 | 89 / 13 | 1M | 2M |
| Q1 2024 | 238 | 25M | 100.0% | 29 / 83 | 96 / 13 | 1M | 1M |
| Q4 2023 | 223 | 24M | 98.8% | 30 / 72 | 93 / 16 | 1M | 1M |
| Q3 2023 | 211 | 24M | 96.8% | 22 / 81 | 80 / 14 | 1M | 1M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of IOSP | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 1,484,268 | 6.03% | $120.80M | 0.11% | Jun 30, 2026 |
| Allspring Special Small Cap Value Fund | 1,207,431 | 4.90% | $98.27M | 3.32% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 782,414 | 3.18% | $63.68M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 653,783 | 2.65% | $53.21M | 0.06% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 564,509 | 2.29% | $45.95M | 0.02% | Jun 30, 2026 |
| Victory Sycamore Small Company Opportunity Fund | 490,000 | 1.99% | $39.88M | 0.85% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 357,834 | 1.45% | $29.12M | 0.04% | Jun 30, 2026 |
| Brighthouse Small Cap Value Portfolio | 288,354 | 1.17% | $23.47M | 3.20% | Jun 30, 2026 |
| College Retirement Equities Fund - Total Global Stock Account | 282,945 | 1.15% | $23.03M | 0.02% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 282,511 | 1.15% | $22.99M | 0.02% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 276,099 | 1.12% | $23.74M | 0.07% | Jul 31, 2026 |
| iShares Russell 2000 Value ETF | 236,176 | 0.96% | $19.22M | 0.13% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 226,547 | 0.92% | $18.44M | 0.11% | Jun 30, 2026 |
| Brown Advisory Small-Cap Fundamental Value Fund | 218,227 | 0.89% | $17.76M | 1.44% | Jun 30, 2026 |
| iShares S&P Small-Cap 600 Value ETF | 212,067 | 0.86% | $17.26M | 0.22% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Ian Cleminson | EVP & CFO | 21,588 | 0.09% | Mar 6, 2026 |
| Patrick Williams | PRESIDENT & CEO | 231,535 | 0.94% | Mar 3, 2026 |
| David B. Jones | SVP, GC & CCO | 14,693 | 0.06% | Mar 3, 2026 |
| Corbin Barnes | SVP, Corporate Dev and IR | 13,080 | 0.05% | Mar 3, 2026 |
| Hardy Louis Griffin Iii | SVP, HUMAN RESOURCES | 10,161 | 0.04% | Mar 3, 2026 |
| Ian Malcolm McRobbie | Senior VP R&T | 36,679 | 0.15% | Feb 25, 2026 |
| Graeme Blair | Head of Group Finance | 0 | – | Feb 25, 2026 |
| Philip John Boon | Executive VP Business Ops | 23,833 | 0.10% | Feb 24, 2025 |
| Shelley J. Bausch | Director | – | – | Jul 1, 2026 |
| David Landless | Director | 7,632 | 0.03% | Mar 6, 2026 |
| Claudia Poccia | Director | 6,508 | 0.03% | Mar 6, 2026 |
| Larry PADFIELD | Director | 9,760 | 0.04% | Mar 6, 2026 |
| Milton C. Blackmore | Director | 11,837 | 0.05% | Mar 6, 2026 |
| Elizabeth K. Arnold | Director | 6,376 | 0.03% | Feb 25, 2026 |
| Leslie J. Parrette | Director | 7,376 | 0.03% | Feb 24, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| David B. Jones SVP, GC & CCO | Mar 3, 2026 | Sale | −1,028 | $75.64 | $77.76K | 14,693 |
| David Landless Director | Feb 27, 2026 | Sale | −307 | $76.79 | $23.57K | 7,632 |
| David Landless Director | Feb 27, 2026 | Sale | −287 | $76.30 | $21.90K | 7,939 |
| Claudia Poccia Director | Feb 27, 2026 | Sale | −62 | $76.79 | $4.76K | 6,508 |
| Claudia Poccia Director | Feb 27, 2026 | Sale | −57 | $76.30 | $4.35K | 6,570 |
| Larry PADFIELD Director | Feb 27, 2026 | Sale | −287 | $76.30 | $21.90K | 9,760 |
| Larry PADFIELD Director | Feb 27, 2026 | Sale | −307 | $76.79 | $23.57K | 9,453 |
| Ian Cleminson EVP & CFO | Feb 27, 2026 | Sale | −1,149 | $76.30 | $87.67K | 21,588 |
| Ian Cleminson EVP & CFO | Feb 27, 2026 | Sale | −1,231 | $76.79 | $94.53K | 20,357 |
| Milton C. Blackmore Director | Feb 27, 2026 | Sale | −287 | $76.30 | $21.90K | 10,837 |
| Milton C. Blackmore Director | Feb 27, 2026 | Sale | −307 | $76.79 | $23.57K | 10,530 |
| David Landless Director | Feb 27, 2026 | Sale | −594 | $76.56 | $45.48K | 7,632 |
| Corbin Barnes SVP, Corporate Dev and IR | Feb 27, 2026 | Tax withholding | −166 | $78.34 | $13.00K | 13,080 |
| David B. Jones SVP, GC & CCO | Feb 27, 2026 | Tax withholding | −875 | $78.34 | $68.55K | 15,721 |
| Milton C. Blackmore Director | Feb 27, 2026 | Sale | −594 | $76.56 | $45.48K | 10,530 |
| Patrick Williams PRESIDENT & CEO | Feb 27, 2026 | Tax withholding | −7,966 | $78.34 | $624.06K | 231,535 |
| Ian Cleminson EVP & CFO | Feb 27, 2026 | Sale | −2,380 | $76.56 | $182.21K | 20,357 |
| Larry PADFIELD Director | Feb 27, 2026 | Sale | −594 | $76.56 | $45.48K | 9,453 |
| Hardy Louis Griffin Iii SVP, HUMAN RESOURCES | Feb 27, 2026 | Tax withholding | −401 | $78.34 | $31.41K | 10,161 |
| Claudia Poccia Director | Feb 27, 2026 | Sale | −119 | $76.56 | $9.11K | 6,508 |
| Ian Cleminson EVP & CFO | Feb 23, 2026 | Award | +4,499 | – | – | 22,737 |
| Hardy Louis Griffin Iii SVP, HUMAN RESOURCES | Feb 23, 2026 | Award | +2,521 | – | – | 10,562 |
| Patrick Williams PRESIDENT & CEO | Feb 23, 2026 | Award | +20,846 | – | – | 239,501 |
| Corbin Barnes SVP, Corporate Dev and IR | Feb 23, 2026 | Award | +2,481 | – | – | 13,246 |
| Elizabeth K. Arnold Director | Feb 23, 2026 | Award | +1,539 | – | – | 6,376 |
| David B. Jones SVP, GC & CCO | Feb 23, 2026 | Award | +2,993 | – | – | 16,596 |
| David Landless Director | Feb 23, 2026 | Award | +1,539 | – | – | 8,226 |
| Milton C. Blackmore Director | Feb 23, 2026 | Award | +1,539 | – | – | 11,124 |
| Claudia Poccia Director | Feb 23, 2026 | Award | +1,539 | – | – | 6,627 |
| Leslie J. Parrette Director | Feb 23, 2026 | Award | +1,539 | – | – | 7,376 |
| Larry PADFIELD Director | Feb 23, 2026 | Award | +1,539 | – | – | 10,047 |
| Milton C. Blackmore Director | Feb 20, 2026 | Sale | −1,030 | $81.84 | $84.30K | 9,585 |
| Milton C. Blackmore Director | Feb 20, 2026 | Option exercise | +1,030 | $44.18 | $45.51K | 10,615 |
| Larry PADFIELD Director | Feb 20, 2026 | Sale | −1,030 | $81.84 | $84.30K | 8,508 |
| Larry PADFIELD Director | Feb 20, 2026 | Option exercise | +1,030 | $44.18 | $45.51K | 9,538 |
| Corbin Barnes SVP, Corporate Dev and IR | Feb 16, 2026 | Award | +1,730 | – | – | 10,765 |
| Patrick Williams PRESIDENT & CEO | Feb 16, 2026 | Award | +18,966 | – | – | 218,655 |
| David B. Jones SVP, GC & CCO | Feb 16, 2026 | Award | +1,903 | – | – | 13,603 |
| Ian Cleminson EVP & CFO | Feb 16, 2026 | Award | +2,380 | – | – | 18,238 |
| Hardy Louis Griffin Iii SVP, HUMAN RESOURCES | Feb 16, 2026 | Award | +1,299 | – | – | 8,041 |
| Corbin Barnes SVP, Corporate Dev and IR | Nov 26, 2025 | Small purchase | +19.87 | $74.96 | $1.49K | 9,035 |
| Leslie J. Parrette Director | Nov 14, 2025 | Buy | +340 | $74.09 | $25.19K | 5,837 |
| Corbin Barnes SVP, Corporate Dev and IR | May 30, 2025 | Small purchase | +16.75 | $85.01 | $1.42K | 9,015 |
| Hardy Louis Griffin Iii SVP, HUMAN RESOURCES | May 13, 2025 | Tax withholding | −600 | $91.53 | $54.92K | 6,742 |
| Leslie J. Parrette Director | May 13, 2025 | Sale | −176 | $90.68 | $15.96K | 5,497 |
| Leslie J. Parrette Director | May 13, 2025 | Sale | −270 | $90.60 | $24.46K | 5,673 |
| Corbin Barnes SVP, Corporate Dev and IR | May 13, 2025 | Tax withholding | −740 | $91.53 | $67.73K | 8,998 |
| Ian Cleminson EVP & CFO | Mar 3, 2025 | Sale | −4,275 | $100.98 | $431.69K | 15,858 |
| Patrick Williams PRESIDENT & CEO | Mar 3, 2025 | Tax withholding | −12,723 | $103.66 | $1.32M | 199,689 |
| Larry PADFIELD Director | Feb 24, 2025 | Award | +1,209 | – | – | 8,508 |
| Ian Cleminson VP & CFO | Feb 24, 2025 | Award | +2,862 | – | – | 20,133 |
| Hardy Louis Griffin Iii SVP, HUMAN RESOURCES | Feb 24, 2025 | Award | +1,682 | – | – | 7,342 |
| Patrick Williams PRESIDENT & CEO | Feb 24, 2025 | Award | +14,743 | – | – | 212,412 |
| Corbin Barnes SVP, Corporate Dev and IR | Feb 24, 2025 | Award | +1,687 | – | – | 9,738 |
| David Landless Director | Feb 24, 2025 | Award | +1,209 | – | – | 6,687 |
| Milton C. Blackmore Director | Feb 24, 2025 | Award | +1,209 | – | – | 9,585 |
| David B. Jones SVP, GC & CCO | Feb 24, 2025 | Award | +2,036 | – | – | 11,700 |
| Claudia Poccia Director | Feb 24, 2025 | Award | +1,209 | – | – | 5,088 |
| Leslie J. Parrette Director | Feb 24, 2025 | Award | +1,209 | – | – | 5,943 |
| Elizabeth K. Arnold Director | Feb 24, 2025 | Award | +1,209 | – | – | 4,837 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.