Manager × security

ROYCE & ASSOCIATES LP IOSP holdings history

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INNOSPEC INC · CUSIP 45768S105 · CIK 906304

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, ROYCE & ASSOCIATES LP reported 308.73K IOSP (shares), valued at $25.13M, or 0.20% of its reported non-derivative portfolio. Filed 2026-08-14.

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Portfolio weight and quantity history
Reported portfolio weight
0.20%
Shares
308.73K
308,726
Reported value
$25.13M
USD

Shares increased 18.13%; reported value increased 31.67%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 20260.20%308,726SEC filing ↗Filed Aug 14, 2026Combination report
Q1 20260.19%261,336SEC filing ↗Filed May 12, 2026Combination report
Q4 20250.24%305,226SEC filing ↗Filed Feb 9, 2026Combination report
Q3 20250.38%492,614SEC filing ↗Filed Nov 12, 2025Combination report
Q2 20250.54%627,502SEC filing ↗Filed Aug 11, 2025Combination report
Q1 20250.67%653,636SEC filing ↗Filed May 6, 2025Combination report
Q4 20240.79%777,711SEC filing ↗Filed Feb 10, 2025Combination report
Q3 20240.86%835,333SEC filing ↗Filed Nov 6, 2024Combination report
Q2 20240.88%764,431SEC filing ↗Filed Aug 13, 2024Combination report
Q1 20240.92%803,275SEC filing ↗Filed May 13, 2024Combination report
Q4 20230.94%824,125SEC filing ↗Filed Feb 12, 2024Combination report
Q3 20230.88%847,650SEC filing ↗Filed Nov 9, 2023Combination report

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20230.88%847,650$86.63MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 9, 2023
Q4 20230.94%824,125$101.57MShares decreased 2.78%; reported value increased 17.24%, and weight changed +0.06 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 12, 2024
Q1 20240.92%803,275$103.57MShares decreased 2.53%; reported value increased 1.98%, and weight changed -0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 13, 2024
Q2 20240.88%764,431$94.48MShares decreased 4.84%; reported value decreased 8.78%, and weight changed -0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 13, 2024
Q3 20240.86%835,333$94.47MShares increased 9.28%; reported value decreased 0.01%, and weight changed -0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 6, 2024
Q4 20240.79%777,711$85.59MShares decreased 6.90%; reported value decreased 9.39%, and weight changed -0.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 10, 2025
Q1 20250.67%653,636$61.93MShares decreased 15.95%; reported value decreased 27.65%, and weight changed -0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 6, 2025
Q2 20250.54%627,502$52.77MShares decreased 4.00%; reported value decreased 14.80%, and weight changed -0.13 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 11, 2025
Q3 20250.38%492,614$38.01MShares decreased 21.50%; reported value decreased 27.97%, and weight changed -0.16 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 12, 2025
Q4 20250.24%305,226$23.36MShares decreased 38.04%; reported value decreased 38.54%, and weight changed -0.14 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 9, 2026
Q1 20260.19%261,336$19.08MShares decreased 14.38%; reported value decreased 18.32%, and weight changed -0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 12, 2026
Q2 20260.20%308,726$25.13MShares increased 18.13%; reported value increased 31.67%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2026
ROYCE & ASSOCIATES LP · INNOSPEC INC

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.