Security record · archived quarter
IOSP
Innospec Inc. · Basic Materials · Chemicals - Specialty
96Tracked holders
+2Δ holders
20.14MShares held
$1.54BReported value
+3New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +2.1% ·
share flow +0.8% ·
net new positions +3.1%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 334.72K | $31.94M | n/a | n/a |
| Q2 2026 | 96 | +1 | 19.35M | $1.58B | +7 | −7 |
| Q1 2026 | 99 | +4 | 19.64M | $1.44B | +8 | −5 |
| Q4 2025 | 96 | +2 | 20.14M | $1.54B | +3 | n/a |
| Q3 2025 | 16 | 0 | 10.85M | $837.11M | n/a | −1 |
| Q2 2025 | 14 | -1 | 9.66M | $812.09M | n/a | −1 |
| Q1 2025 | 12 | 0 | 2.43M | $230.13M | n/a | n/a |
| Q4 2024 | 12 | 0 | 1.96M | $215.50M | n/a | n/a |
| Q3 2024 | 11 | 0 | 935.00K | $105.75M | +1 | −1 |
| Q2 2024 | 11 | n/a | 1.02M | $126.66M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 3.66M | +0.8% | $280.31M | 0.0% | ▲ Add | 3 | SEC ↗ ×15 |
| 2 | The Vanguard Group ✦ (passive) | 3.12M | -0.7% | $238.89M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 3 | Allspring Global Investments… | 2.36M | n/a | $179.75M | 0.3% | n/c | 1 | SEC ↗ ×2 |
| 4 | Dimensional Fund Advisors Lp | 1.18M | n/a | $89.95M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 5 | Victory Capital Management Inc | 950.07K | n/a | $72.72M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | State Street Global Advisors ✦ (passive) | 949.04K | +2.1% | $72.64M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 609.22K | -0.8% | $46.64M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 8 | Millennium Management ✦ | 533.31K | +10.8% | $40.82M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 9 | Nuveen, LLC | 502.60K | n/a | $38.47M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 10 | Goldman Sachs Group ✦ | 484.97K | +71.6% | $37.12M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 11 | Charles Schwab Investment… | 373.54K | n/a | $28.59M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Bank Of America Corp /De/ | 322.36K | n/a | $24.67M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 13 | Qube Research & Technologies Ltd | 320.50K | n/a | $24.53M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 309.93K | +13.2% | $23.72M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 15 | Brown Advisory Inc | 305.98K | n/a | $23.42M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 16 | JPMorgan Chase ✦ | 305.88K | -52.4% | $23.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 17 | Northern Trust Corp | 274.69K | n/a | $21.02M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 18 | AQR Capital Management ✦ | 268.15K | +48.0% | $20.52M | 0.0% | ▲ Add | 7 | SEC ↗ ×6 |
| 19 | Morgan Stanley ✦ | 243.53K | -4.0% | $18.64M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 20 | Assenagon Asset Management S.A. | 178.20K | n/a | $13.64M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Two Sigma Investments ✦ | 159.51K | +7.6% | $12.21M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 22 | Janus Henderson Group Plc | 150.85K | n/a | $11.55M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 23 | UBS Group AG | 142.06K | n/a | $10.87M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 24 | Norges Bank ✦ (passive) | 139.20K | New | $10.65M | 0.0% | New | 1 | SEC ↗ |
| 25 | Bank of New York Mellon Corp | 137.83K | n/a | $10.55M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 26 | Hotchkis & Wiley Capital Management… | 125.06K | n/a | $9.57M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Renaissance Technologies ✦ | 120.30K | -17.9% | $9.21M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 28 | Principal Financial Group Inc | 118.11K | n/a | $9.04M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 29 | Hrt Financial Lp | 116.93K | n/a | $8.95M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Jane Street Group, Llc | 108.96K | n/a | $8.34M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | Invesco Ltd. | 104.64K | n/a | $8.01M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 32 | Sei Investments Co | 103.70K | n/a | $7.94M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 33 | Point72 Asset Management ✦ | 95.78K | +712.1% | $7.33M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 34 | ProShare Advisors LLC | 83.74K | n/a | $6.41M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | UBS AM, a distinct business unit of… | 78.67K | n/a | $6.02M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 36 | Citadel Advisors ✦ | 72.69K | -12.8% | $5.56M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 37 | Rhumbline Advisers | 70.20K | n/a | $5.37M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Healthcare Of Ontario Pension Plan… | 68.05K | n/a | $5.21M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Legal & General Group Plc | 62.46K | n/a | $4.78M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 40 | Ameriprise Financial Inc | 60.29K | n/a | $4.61M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 41 | American Century Companies Inc | 54.32K | n/a | $4.16M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Swiss National Bank | 49.00K | n/a | $3.75M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Barclays Plc | 45.85K | n/a | $3.51M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 44 | Creative Planning | 44.69K | n/a | $3.42M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Fidelity (FMR) ✦ | 36.92K | +3570.1% | $2.83M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 46 | Wells Fargo & Company/Mn | 35.09K | n/a | $2.69M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 47 | Hsbc Holdings Plc | 29.69K | n/a | $2.28M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 48 | Franklin Resources Inc | 28.51K | n/a | $2.18M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 49 | T. Rowe Price ✦ | 28.38K | +21.5% | $2.17M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 50 | Alliancebernstein L.P. | 26.92K | n/a | $2.06M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Canada Pension Plan Investment Board | 26.00K | n/a | $1.99M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Voya Investment Management Llc | 25.26K | n/a | $1.93M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | California State Teachers… | 23.80K | n/a | $1.82M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Prudential Financial Inc | 23.46K | n/a | $1.80M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Deutsche Bank Ag\ | 19.66K | n/a | $1.51M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 56 | Cerity Partners LLC | 19.31K | n/a | $1.48M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 57 | Holocene Advisors, LP | 19.05K | n/a | $1.46M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Citigroup Inc | 17.71K | n/a | $1.36M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 59 | Mariner, LLC | 15.68K | n/a | $1.21M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Bnp Paribas Financial Markets | 14.01K | n/a | $1.07M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | First Trust Advisors Lp | 12.28K | n/a | $939,625 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 62 | Russell Investments Group, Ltd. | 11.63K | n/a | $890,044 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 63 | Manufacturers Life Insurance… | 11.59K | n/a | $887,405 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 11.55K | n/a | $884,420 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Capstone Investment Advisors, Llc | 11.35K | n/a | $868,882 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Cwm, Llc | 10.45K | n/a | $800,000 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Wealth Enhancement Advisory… | 9.22K | n/a | $725,043 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Zurcher Kantonalbank (Zurich… | 9.46K | n/a | $724,451 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Marshall Wace ✦ | 9.23K | New | $706,311 | 0.0% | New | 1 | SEC ↗ ×3 |
| 70 | New York State Common Retirement… | 8.91K | n/a | $682,048 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Mercer Global Advisors Inc /Adv | 7.54K | n/a | $576,745 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Quantinno Capital Management LP | 7.30K | n/a | $558,571 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | State Board Of Administration Of… | 6.73K | n/a | $514,885 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Arrowstreet Capital ✦ | 6.24K | New | $477,457 | 0.0% | New | 1 | SEC ↗ |
| 75 | Susquehanna International Group, Llp | 6.12K | n/a | $468,654 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Man Group plc | 5.72K | n/a | $437,579 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 77 | Amundi | 5.19K | n/a | $397,166 | 0.0% | n/c | 1 | SEC ↗ |
| 78 | LPL Financial LLC | 5.08K | n/a | $388,556 | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Cetera Investment Advisers | 4.86K | n/a | $371,915 | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Royal Bank Of Canada | 4.18K | n/a | $319,000 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 81 | Pictet Asset Management Holding SA | 4.05K | n/a | $310,140 | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Envestnet Asset Management Inc | 3.46K | n/a | $264,935 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Captrust Financial Advisors | 3.36K | n/a | $257,174 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Mackenzie Financial Corp | 2.96K | n/a | $230,839 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Tidal Investments LLC | 2.83K | n/a | $216,914 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Pnc Financial Services Group, Inc. | 2.36K | n/a | $180,710 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 87 | Ensign Peak Advisors, Inc | 1.21K | n/a | $92,537 | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Rockefeller Capital Management L.P. | 728 | n/a | $55,737 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Danske Bank A/S | 600 | n/a | $45,924 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | BNP Paribas Asset Management… | 457 | n/a | $35,000 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Osaic Holdings, Inc. | 326 | n/a | $24,960 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Jones Financial Companies Lllp | 239 | n/a | $18,320 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Fifth Third Bancorp | 231 | n/a | $17,681 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Us Bancorp \De\ | 225 | n/a | $17,222 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | TD Waterhouse Canada Inc. | 100 | n/a | $7,646 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Mitsubishi UFJ Asset Management… | 42 | n/a | $3,204 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $10.65M | 0.0% |
| Marshall Wace | $706,311 | 0.0% |
| Arrowstreet Capital | $477,457 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 263 holders, 24.51M shares, $1.76B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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