Market Data · 13F holdings

Innospec Inc

Institutional managers reporting a position on Form 13F-HR, as of Mar 31, 2026

IOSP
Reported holdings
264
264 filings · +0.8% QoQ
Combined value
$1.79B
as of Mar 31, 2026
Quarter change
−3.0%
from $1.84B on Dec 31, 2025
Top-10 concentration
57.7%
of combined value

1Largest holdersEvery position of a manager summed

  1. 1BlackRock, Inc.
    $283.24M15.9%
  2. 2Allspring Global Investments Holdings, LLC
    $170.45M9.5%
  3. 3VANGUARD PORTFOLIO MANAGEMENT LLC
    $135.82M7.6%
  4. 4DIMENSIONAL FUND ADVISORS LP
    $90.7M5.1%
  5. 5VANGUARD CAPITAL MANAGEMENT LLC
    $81.39M4.6%
  6. 6STATE STREET CORP
    $70.42M3.9%
  7. 7VICTORY CAPITAL MANAGEMENT INC
    $63.16M3.5%
  8. 8Nuveen, LLC
    $46.97M2.6%
  9. 9GEODE CAPITAL MANAGEMENT, LLC
    $46.05M2.6%
  10. 10TWO SIGMA INVESTMENTS, LP
    $43.3M2.4%

2HoldersChange from Dec 31, 2025

HolderQuantityChangeValueShareFiled
BlackRock, Inc.Common shares3.9M+216.7K+5.9%$283.24M15.85%May 13, 2026
Allspring Global Investments Holdings, LLCCommon shares2.3M−40,561−1.7%$170.45M9.54%May 5, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCCommon shares1.9MNew$135.82M7.60%May 8, 2026
DIMENSIONAL FUND ADVISORS LPCommon shares1.2M+66,967+5.7%$90.7M5.08%May 7, 2026
VANGUARD CAPITAL MANAGEMENT LLCCommon shares · Amendment 1 (restatement)1.1MNew$81.39M4.56%May 15, 2026
STATE STREET CORPCommon shares964.3K+15,297+1.6%$70.42M3.94%May 15, 2026
VICTORY CAPITAL MANAGEMENT INCCommon shares865K−85,080−9.0%$63.16M3.54%May 15, 2026
Nuveen, LLCCommon shares643.2K+140.6K+28.0%$46.97M2.63%Apr 30, 2026
GEODE CAPITAL MANAGEMENT, LLCCommon shares630.6K+21,372+3.5%$46.05M2.58%May 15, 2026
TWO SIGMA INVESTMENTS, LPCommon shares593K+433.5K+271.8%$43.3M2.42%May 15, 2026
UBS Group AGCommon shares565.9K+423.9K+298.4%$41.32M2.31%May 5, 2026
GOLDMAN SACHS GROUP INCCommon shares492K+7,043+1.5%$35.93M2.01%May 15, 2026
Assenagon Asset Management S.A.Common shares490.9K+312.7K+175.5%$35.84M2.01%Apr 20, 2026
JPMORGAN CHASE & COCommon shares · Amendment 1 (restatement)426.1K+120.2K+39.3%$31.18M1.75%May 13, 2026
Qube Research & Technologies LtdCommon shares406.6K+86,120+26.9%$29.69M1.66%May 15, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INCCommon shares365.9K−7,666−2.1%$26.72M1.50%May 15, 2026
AQR CAPITAL MANAGEMENT LLCCommon shares312.1K+43,914+16.4%$22.79M1.28%May 15, 2026
BROWN ADVISORY INCCommon shares296.5K−9,512−3.1%$21.65M1.21%May 15, 2026
GENDELL JEFFREY LCommon shares294.5K+9,153+3.2%$21.5M1.20%May 15, 2026
BANK OF AMERICA CORP /DE/Common shares290.8K−31,592−9.8%$21.23M1.19%May 18, 2026
D. E. Shaw & Co., Inc.Common shares286.8K−23,133−7.5%$20.94M1.17%May 15, 2026
NORTHERN TRUST CORPCommon shares284.2K+9,550+3.5%$20.76M1.16%May 14, 2026
ROYCE & ASSOCIATES LPCommon shares261.3K−43,890−14.4%$19.08M1.07%May 12, 2026
MORGAN STANLEYCommon shares235.6K−7,964−3.3%$17.2M0.96%May 15, 2026
Western Standard LLCCommon shares226.8K−41,534−15.5%$16.56M0.93%May 5, 2026
Showing 25 of 264

3Report periods

Report dateFilingsHoldingsCombined valueLatest filed
Mar 31, 2026264264$1.79BMay 21, 2026
Dec 31, 2025261262$1.84BMay 27, 2026
Sep 30, 2025269271$1.86BMay 27, 2026
Jun 30, 2025265265$2BMay 21, 2026
Mar 31, 20251010$52.49MMay 11, 2026

Filings for a quarter keep arriving for months after it ends, so the most recent and the earliest periods can be incomplete.

4About this data

Each row is one manager's position as disclosed in one Form 13F-HR filing; managers below the Form 13F reporting threshold do not appear. Values, quantities and manager names are as reported in each filing. A row totals the entries of one filing that share a security class and option type; a value or quantity is shown as not comparable when those entries differ in currency or unit. A restatement replaces the original filing and every earlier amendment for the same period; an amendment adding new holdings is listed alongside the filing it supplements and labelled as such. Positions are matched to this listing through the security identifiers reported in the filing.