Innospec Inc.
US ˙ NasdaqGS ˙ US45768S1050

SecurityIOSP / Innospec Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership406,624 shares
Latest Disclosed Value $ 29,691,684
Qube Research & Technologies Ltd reports 26.87% increase in ownership of IOSP / Innospec Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 406,624 shares of Innospec Inc. (US:IOSP) valued at $29,691,684 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 320,504 shares of Innospec Inc.. This represents a change in shares of 26.87% during the quarter. The current value of the position is $32,794,226 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F INNOSPEC COM 45768S105 406,624 86,120 26.87 29,692 21.03 0.0330
2026-02-17 2025-12-31 13F INNOSPEC COM 45768S105 320,504 -33,508 -9.47 24,531 -10.19 0.0249
2025-11-14 2025-09-30 13F INNOSPEC COM 45768S105 354,012 47,251 15.40 27,316 5.89 0.0282
2025-08-14 2025-06-30 13F INNOSPEC COM 45768S105 306,761 128,544 72.13 25,796 52.76 0.0262
2025-05-15 2025-03-31 13F INNOSPEC COM 45768S105 178,217 85,047 91.28 16,886 64.68 0.0196
2025-02-14 2024-12-31 13F INNOSPEC COM 45768S105 93,170 -24,888 -21.08 10,254 -23.20 0.0134
2024-11-14 2024-09-30 13F INNOSPEC COM 45768S105 118,058 -1,644 -1.37 13,351 -9.75 0.0197
2024-08-14 2024-06-30 13F INNOSPEC COM 45768S105 119,702 65,053 119.04 14,794 109.95 0.0234
2024-05-14 2024-03-31 13F INNOSPEC COM 45768S105 54,649 31,007 131.15 7,046 141.88 0.0112
2024-02-13 2023-12-31 13F INNOSPEC COM 45768S105 23,642 -15,413 -39.46 2,914 -27.01 0.0057
2023-11-13 2023-09-30 13F INNOSPEC COM 45768S105 39,055 1,946 5.24 3,991 7.08 0.0104
2023-08-14 2023-06-30 13F INNOSPEC COM 45768S105 37,109 3,186 9.39 3,727 7.04 0.0136
2023-05-15 2023-03-31 13F INNOSPEC COM 45768S105 33,923 16,421 93.82 3,483 93.44 0.0150
2023-02-14 2022-12-31 13F INNOSPEC COM 45768S105 17,502 17,502 1,800 0.0096
2022-08-15 2022-06-30 13F INNOSPEC COM 45768S105 0 -18,468 -100.00 0 -100.00
2022-05-09 2022-03-31 13F INNOSPEC COM 45768S105 18,468 18,468 1,709 0.0145
2022-02-10 2021-12-31 13F/A-1 INNOSPEC COM 45768S105 0 -7,995 -100.00 0 -100.00
2022-02-01 2021-12-31 13F INNOSPEC COM 45768S105 0 -7,995 0
2021-11-12 2021-09-30 13F INNOSPEC COM 45768S105 7,995 -1,586 -16.55 673 -22.47 0.0084
2021-08-13 2021-06-30 13F INNOSPEC COM 45768S105 9,581 9,581 868 0.0099
2020-11-12 2020-09-30 13F INNOSPEC COM 45768S105 0 -3,231 -100.00 0 -100.00
2020-08-14 2020-06-30 13F INNOSPEC COM 45768S105 3,231 3,231 250 0.0037
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.