DaveManuel.com · Institutional Ownership · Who Owns It
INNOSPEC INC (IOSP)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
281
Reporting holders
$2.0B
Reported value
101.0%
Of shares outstanding
0.0%
Calls
0.0%
Puts
+14
Holder change
Institutions report 24,866,533 shares against 24,631,047 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $356.6M | 4,381,323 | 0.01% | 8q | +13.0%+$40.9M |
| Allspring Global Investments Holdings, LLC | $154.7M | 1,892,471 | 0.24% | 19q | -18.3%-$34.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $153.4M | 1,884,244 | 0.01% | 2q | +1.3%+$2.0M |
| DIMENSIONAL FUND ADVISORS LP | $106.2M | 1,305,038 | 0.02% | 31q | +5.1%+$5.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $90.2M | 1,108,107 | 0.00% | 2q | -0.6%-$528.3K |
| STATE STREET CORP | $81.1M | 996,027 | 0.00% | 31q | +3.3%+$2.6M |
| Nuveen, LLC | $61.5M | 755,723 | 0.01% | 6q | +17.5%+$9.2M |
| GEODE CAPITAL MANAGEMENT, LLC | $54.3M | 666,589 | 0.00% | 31q | +5.7%+$2.9M |
| GOLDMAN SACHS GROUP INC | $53.9M | 662,210 | 0.00% | 31q | +34.6%+$13.9M |
| VICTORY CAPITAL MANAGEMENT INC | $53.7M | 660,110 | 0.03% | 30q | -23.7%-$16.7M |
| TWO SIGMA INVESTMENTS, LP | $46.3M | 568,709 | 0.03% | 22q | -4.1%-$2.0M |
| Assenagon Asset Management S.A. | $44.4M | 545,564 | 0.03% | 5q | +11.1%+$4.5M |
| AQR CAPITAL MANAGEMENT LLC | $39.3M | 482,545 | 0.01% | 20q | +54.6%+$13.9M |
| BROWN ADVISORY INC | $33.2M | 408,468 | 0.05% | 6q | +37.8%+$9.1M |
| JPMORGAN CHASE & CO | $30.0M | 370,574 | 0.00% | 31q | -13.0%-$4.5M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $28.9M | 355,658 | 0.00% | 31q | -2.8%-$831.5K |
| GENDELL JEFFREY L | $26.4M | 324,504 | 0.23% | 10q | +10.2%+$2.4M |
| ROYCE & ASSOCIATES LP | $25.1M | 308,726 | 0.20% | 31q | +18.1%+$3.9M |
| NORTHERN TRUST CORP | $24.7M | 303,044 | 0.00% | 31q | +6.6%+$1.5M |
| Qube Research & Technologies Ltd | $23.3M | 285,849 | 0.02% | 15q | -29.7%-$9.8M |
| ACADIAN ASSET MANAGEMENT LLC | $22.3M | 273,999 | 0.03% | 31q | +123.6%+$12.3M |
| Western Standard LLC | $19.3M | 236,833 | 6.53% | 4q | +4.4%+$813.9K |
| BANK OF AMERICA CORP /DE/ | $19.2M | 235,742 | 0.00% | 31q | -18.9%-$4.5M |
| MORGAN STANLEY | $18.8M | 230,793 | 0.00% | 35q | -2.0%-$388.9K |
| RENAISSANCE TECHNOLOGIES LLC | $15.1M | 185,000 | 0.02% | 9q | +55.6%+$5.4M |
| PANAGORA ASSET MANAGEMENT INC | $14.9M | 182,538 | 0.05% | 31q | +52.5%+$5.1M |
| D. E. Shaw & Co., Inc. | $13.5M | 165,746 | 0.01% | 31q | -42.2%-$9.9M |
| VANGUARD FIDUCIARY TRUST CO | $13.3M | 163,715 | 0.00% | 2q | +1.8%+$241.2K |
| SEI INVESTMENTS CO | $12.7M | 156,051 | 0.01% | 19q | -10.4%-$1.5M |
| UBS Group AG | $12.5M | 154,001 | 0.00% | 31q | -72.8%-$33.5M |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | $12.0M | 147,112 | 2.47% | 3q | -0.6%-$78.1K |
| MACKENZIE FINANCIAL CORP | $11.8M | 144,677 | 0.01% | new | NEW |
| Bank of New York Mellon Corp | $11.2M | 137,261 | 0.00% | 31q | +4.5%+$485.9K |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $11.0M | 135,740 | 0.03% | 12q | +12.4%+$1.2M |
| Jupiter Topco LLC | $10.4M | 127,976 | 0.00% | new | FIRST |
| Leeward Investments, LLC - MA | $10.2M | 125,308 | 0.46% | 18q | +79.5%+$4.5M |
| PRINCIPAL FINANCIAL GROUP INC | $9.7M | 119,053 | 0.00% | 31q | -1.2%-$115.9K |
| Russell Investments Group, Ltd. | $9.6M | 118,614 | 0.01% | 31q | +65.6%+$3.8M |
| Invesco Ltd. | $9.6M | 118,427 | 0.00% | 31q | HELD |
| ZWJ INVESTMENT COUNSEL INC | $8.8M | 108,502 | 0.29% | 31q | +4.5%+$383.7K |
| Creative Planning | $8.5M | 104,224 | 0.00% | 13q | +176.9%+$5.4M |
| CITADEL ADVISORS LLC | $8.0M | 98,549 | 0.00% | 12q | -55.4%-$10.0M |
| DEPRINCE RACE & ZOLLO INC | $7.6M | 93,348 | 0.13% | 2q | +37.2%+$2.1M |
| FIRST TRUST ADVISORS LP | $7.4M | 91,252 | 0.00% | 31q | +617.6%+$6.4M |
| TEACHER RETIREMENT SYSTEM OF TEXAS | $7.0M | 85,463 | 0.02% | 23q | -17.1%-$1.4M |
| Public Sector Pension Investment Board | $6.9M | 84,577 | 0.02% | 31q | -4.6%-$335.1K |
| HRT FINANCIAL LP | $6.9M | 84,349 | 0.01% | 6q | -32.6%-$3.3M |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | $6.7M | 82,920 | 0.07% | 31q | -5.2%-$369.8K |
| FMR LLC | $6.7M | 82,759 | 0.00% | 31q | +59.8%+$2.5M |
| ProShare Advisors LLC | $6.6M | 81,232 | 0.01% | 25q | -9.6%-$700.7K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $6.0M | 73,457 | 0.00% | 31q | -1.3%-$80.3K |
| SG Capital Management LLC | $5.8M | 71,022 | 0.48% | new | NEW |
| Numerai GP LLC | $5.4M | 66,931 | 0.45% | 5q | -12.6%-$788.3K |
| RHUMBLINE ADVISERS | $5.3M | 65,055 | 0.00% | 31q | -8.6%-$496.6K |
| Trexquant Investment LP | $4.9M | 60,528 | 0.03% | 7q | -22.8%-$1.5M |
| Balyasny Asset Management L.P. | $4.9M | 59,751 | 0.01% | new | NEW |
| Legal & General Group Plc | $4.8M | 58,841 | 0.00% | 31q | HELD |
| AMERICAN CENTURY COMPANIES INC | $4.5M | 55,093 | 0.00% | 22q | HELD |
| AMERIPRISE FINANCIAL INC | $4.4M | 54,517 | 0.00% | 31q | -3.6%-$164.2K |
| Swiss National Bank | $4.1M | 49,903 | 0.00% | 31q | +1.8%+$73.3K |
| IEQ CAPITAL, LLC | $3.7M | 45,343 | 0.02% | 5q | +13.5%+$438.1K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $3.6M | 43,995 | 0.01% | 4q | -28.7%-$1.4M |
| Point72 Asset Management, L.P. | $3.5M | 42,648 | 0.00% | 8q | -74.4%-$10.1M |
| Atom Investors LP | $3.3M | 40,870 | 0.30% | 4q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $3.2M | 39,514 | 0.00% | 31q | +4.1%+$125.9K |
| DARK FOREST CAPITAL MANAGEMENT LP | $3.2M | 38,862 | 0.20% | 5q | +51.6%+$1.1M |
| FRANKLIN RESOURCES INC | $3.2M | 38,748 | 0.00% | 13q | +15.7%+$428.4K |
| INTECH INVESTMENT MANAGEMENT LLC | $3.1M | 38,292 | 0.03% | 9q | -14.8%-$543.3K |
| SG Americas Securities, LLC | $3.1M | 37,665 | 0.00% | 12q | -38.1%-$1.9M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $3.0M | 37,345 | 0.00% | 31q | +17.3%+$449.3K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $2.8M | 34,876 | 0.00% | 3q | +88.5%+$1.3M |
| CM Management, LLC | $2.6M | 32,000 | 1.65% | 5q | +33.3%+$651.1K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $2.6M | 31,857 | 0.01% | 9q | -70.5%-$6.2M |
| Cerity Partners LLC | $2.5M | 31,315 | 0.00% | 10q | +39.1%+$716.4K |
| PDT Partners, LLC | $2.5M | 31,176 | 0.13% | 5q | -9.8%-$276.7K |
| WELLS FARGO & COMPANY/MN | $2.5M | 30,221 | 0.00% | 31q | +71.5%+$1.0M |
| Edgestream Partners, L.P. | $2.4M | 29,208 | 0.07% | 8q | -14.7%-$408.4K |
| Huber Capital Management LLC | $2.4M | 29,148 | 0.35% | 31q | +15.9%+$325.6K |
| INGALLS & SNYDER LLC | $2.4M | 28,927 | 0.06% | 9q | HELD |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $2.3M | 27,765 | 0.00% | 31q | +0.9%+$19.2K |
| DEUTSCHE BANK AG\ | $2.2M | 27,565 | 0.00% | 34q | +21.2%+$391.9K |
| Mariner, LLC | $2.2M | 26,935 | 0.00% | 4q | +36.7%+$588.0K |
| VOYA INVESTMENT MANAGEMENT LLC | $2.1M | 25,915 | 0.00% | 31q | +3.3%+$66.9K |
| CITIGROUP INC | $2.1M | 25,692 | 0.00% | 31q | +8.0%+$154.6K |
| ALLIANCEBERNSTEIN L.P. | $2.1M | 28,622 | 0.00% | 31q | +8.0%+$154.3K |
| PRUDENTIAL FINANCIAL INC | $2.1M | 25,529 | 0.00% | 31q | +1.0%+$21.2K |
| BARCLAYS PLC | $2.0M | 24,713 | 0.00% | 31q | +16.6%+$286.8K |
| ExodusPoint Capital Management, LP | $1.9M | 23,810 | 0.01% | new | NEW |
| HSBC HOLDINGS PLC | $1.9M | 23,693 | 0.00% | 10q | -6.5%-$135.5K |
| Holocene Advisors, LP | $1.9M | 23,760 | 0.00% | 6q | -10.2%-$220.8K |
| Moran Wealth Management, LLC | $1.9M | 23,639 | 0.05% | 15q | -12.5%-$276.1K |
| CONNORS INVESTOR SERVICES INC | $1.9M | 23,363 | 0.16% | 25q | -29.4%-$792.1K |
| KLP KAPITALFORVALTNING AS | $1.9M | 23,300 | 0.01% | 7q | HELD |
| MARSHALL WACE, LLP | $1.9M | 23,075 | 0.00% | 3q | -31.2%-$850.6K |
| WEDGE CAPITAL MANAGEMENT L L P/NC | $1.7M | 20,329 | 0.03% | 5q | -5.3%-$93.1K |
| XTX Topco Ltd | $1.6M | 20,188 | 0.02% | 3q | -44.4%-$1.3M |
| Linden Thomas Advisory Services, LLC | $1.6M | 19,815 | 0.13% | 13q | +67.8%+$651.5K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.6M | 19,560 | 0.00% | 2q | +13.2%+$185.7K |
| CANADA LIFE ASSURANCE Co | $1.6M | 19,508 | 0.00% | 27q | -3.9%-$64.9K |
| Blackstone Inc. | $1.6M | 19,163 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-10-07 | 13G | Allspring Global Investments Holdings, LLC | 4.7% |
| 2026-10-07 | 13G/A | Allspring Global Investments Holdings, LLC | 4.7% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 66 | $128.6M | 1,348,217 | 11 | 23 | 14 | 0.0% |
| Q2 2026 | 281 | $2.0B | 24,866,533 | 42 | 103 | 93 | 0.0% |
| Q1 2026 | 267 | $1.8B | 24,941,077 | 34 | 112 | 80 | 0.0% |
| Q4 2025 | 262 | $1.9B | 24,314,437 | 25 | 103 | 89 | 0.6% |
| Q3 2025 | 266 | $1.9B | 24,285,359 | 30 | 105 | 93 | 0.6% |
| Q2 2025 | 262 | $2.0B | 24,061,646 | 30 | 107 | 84 | 0.0% |
| Q1 2025 | 272 | $2.3B | 24,829,065 | 40 | 91 | 86 | 0.0% |
| Q4 2024 | 262 | $2.7B | 24,218,639 | 23 | 87 | 86 | 0.0% |
| Q3 2024 | 261 | $2.8B | 24,372,386 | 28 | 85 | 102 | 0.0% |
| Q2 2024 | 266 | $3.0B | 24,195,234 | 38 | 97 | 80 | 0.0% |
| Q1 2024 | 240 | $3.2B | 24,818,714 | 27 | 79 | 93 | 0.0% |
| Q4 2023 | 225 | $3.0B | 24,334,063 | 21 | 67 | 93 | 0.0% |
| Q3 2023 | 212 | $2.4B | 23,846,514 | 21 | 77 | 71 | 0.0% |
| Q2 2023 | 203 | $2.4B | 23,803,027 | 15 | 77 | 73 | 0.0% |
| Q1 2023 | 218 | $2.5B | 23,910,220 | 10 | 93 | 78 | 0.0% |
| Q4 2022 | 223 | $2.4B | 23,749,453 | 40 | 79 | 67 | 0.0% |
| Q3 2022 | 183 | $2.2B | 25,307,637 | 15 | 73 | 60 | 0.0% |
| Q2 2022 | 192 | $2.4B | 25,335,283 | 31 | 61 | 67 | 0.1% |
| Q1 2022 | 181 | $2.3B | 25,175,512 | 19 | 64 | 58 | 0.0% |
| Q4 2021 | 181 | $2.7B | 30,193,661 | 22 | 59 | 56 | 0.1% |
| Q3 2021 | 180 | $2.6B | 30,314,596 | 15 | 72 | 58 | 0.0% |
| Q2 2021 | 174 | $2.8B | 30,540,610 | 20 | 69 | 53 | 0.0% |
| Q1 2021 | 173 | $3.1B | 30,046,772 | 20 | 46 | 64 | 0.0% |
| Q4 2020 | 170 | $2.8B | 30,423,574 | 19 | 49 | 63 | 0.0% |
| Q3 2020 | 180 | $1.9B | 30,529,587 | 20 | 53 | 71 | 0.3% |
| Q2 2020 | 176 | $2.4B | 31,093,492 | 22 | 67 | 51 | 0.0% |
| Q1 2020 | 175 | $2.9B | 41,052,392 | 14 | 60 | 70 | 0.0% |
| Q4 2019 | 202 | $3.5B | 33,898,190 | 19 | 69 | 78 | 0.1% |
| Q3 2019 | 204 | $3.0B | 33,667,340 | 31 | 77 | 56 | 0.1% |
| Q2 2019 | 195 | $3.2B | 34,317,998 | 34 | 59 | 51 | 0.1% |
| Q1 2019 | 184 | $2.9B | 34,282,527 | 27 | 60 | 59 | 0.0% |
| Q4 2018 | 175 | $2.2B | 35,582,984 | 4 | 1 | 2 | 0.1% |