Innospec Inc.
US ˙ NasdaqGS ˙ US45768S1050

SecurityIOSP / Innospec Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership100 shares
Latest Disclosed Value $ 7,302
Strs Ohio ownership in IOSP / Innospec Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 100 shares of Innospec Inc. (US:IOSP) valued at $7,302 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 100 shares of Innospec Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $8,060 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)
2026-04-24 2026-03-31 13F INNOSPEC COM_STK 45768S105 100 0 0.00 7 0.00 0.0000
2026-02-02 2025-12-31 13F INNOSPEC COM_STK 45768S105 100 0 0.00 8 0.00 0.0000
2025-10-30 2025-09-30 13F INNOSPEC COM_STK 45768S105 100 -7,300 -98.65 8 -98.87 0.0000
2025-08-04 2025-06-30 13F INNOSPEC COM_STK 45768S105 7,400 -1,000 -11.90 622 -21.76 0.0023
2025-05-28 2025-03-31 13F INNOSPEC COM_STK 45768S105 8,400 0 0.00 796 -13.96 0.0033
2025-05-28 2024-12-31 13F INNOSPEC COM_STK 45768S105 8,400 0 0.00 925 -2.63 0.0037
2024-11-01 2024-09-30 13F INNOSPEC COM_STK 45768S105 8,400 0 0.00 950 -8.57 0.0037
2024-08-05 2024-06-30 13F INNOSPEC COM_STK 45768S105 8,400 200 2.44 1,038 103,700.00 0.0041
2024-05-13 2024-03-31 13F INNOSPEC COM_STK 45768S105 8,200 -1,300 -13.68 1 0.00 0.0042
2024-01-30 2023-12-31 13F INNOSPEC COM 45768S105 9,500 -400 -4.04 1 0.00 0.0049
2023-10-26 2023-09-30 13F/A-1 INNOSPEC COM 45768S105 9,900 -400 -3.88 1 0.00 0.0045
2023-10-26 2023-09-30 13F INNOSPEC COM 45768S105 9,900 -400 1 0.0045
2023-07-31 2023-06-30 13F INNOSPEC COM 45768S105 10,300 500 5.10 1 0.00 0.0044
2023-08-02 2023-03-31 13F/A-2 INNOSPEC COM 45768S105 9,800 -200 -2.00 1 0.00 0.0044
2023-08-02 2023-03-31 13F/A-1 INNOSPEC COM 45768S105 9,800 -200 1 0.0044
2023-04-27 2023-03-31 13F INNOSPEC COM 45768S105 9,800 -200 1 0.0052
2023-01-26 2022-12-31 13F INNOSPEC COM 45768S105 10,000 -1,300 -11.50 1 -99.90 0.0046
2022-10-27 2022-09-30 13F INNOSPEC COM 45768S105 11,300 0 0.00 968 -10.54 0.0046
2022-07-25 2022-06-30 13F INNOSPEC COM 45768S105 11,300 700 6.60 1,082 10.30 0.0049
2022-04-21 2022-03-31 13F INNOSPEC COM 45768S105 10,600 0 0.00 981 2.51 0.0036
2022-01-24 2021-12-31 13F INNOSPEC COM 45768S105 10,600 -2,900 -21.48 957 -15.76 0.0033
2021-10-22 2021-09-30 13F INNOSPEC COM 45768S105 13,500 300 2.27 1,136 -5.02 0.0043
2021-07-26 2021-06-30 13F INNOSPEC COM 45768S105 13,200 300 2.33 1,196 -9.67 0.0043
2021-04-23 2021-03-31 13F INNOSPEC COM 45768S105 12,900 4,900 61.25 1,324 82.62 0.0050
2021-01-25 2020-12-31 13F INNOSPEC COM 45768S105 8,000 0 0.00 725 43.28 0.0028
2020-12-14 2020-09-30 13F INNOSPEC COM 45768S105 8,000 0 0.00 506 -18.12 0.0021
2020-07-23 2020-06-30 13F INNOSPEC COM 45768S105 8,000 -3,200 -28.57 618 -20.57 0.0027
2020-04-23 2020-03-31 13F INNOSPEC COM 45768S105 11,200 -600 -5.08 778 -36.23 0.0041
2020-01-24 2019-12-31 13F INNOSPEC COM 45768S105 11,800 -400 -3.28 1,220 12.24 0.0051
2019-10-21 2019-09-30 13F/A-1 INNOSPEC COM 45768S105 12,200 -500 -3.94 1,087 -6.13 0.0048
2019-10-21 2019-09-30 13F INNOSPEC COM 45768S105 12,200 400 1,087 4,811.1223
2019-07-25 2019-06-30 13F INNOSPEC COM 45768S105 12,700 200 1.60 1,158 11.24 0.0051
2019-04-19 2019-03-31 13F INNOSPEC COM 45768S105 12,500 3,700 42.05 1,041 91.71 0.0047
2019-01-23 2018-12-31 13F INNOSPEC COM 45768S105 8,800 0 0.00 543 -19.56 0.0028
2018-10-19 2018-09-30 13F INNOSPEC COM 45768S105 8,800 0 0.00 675 0.30 0.0030
2018-08-06 2018-06-30 13F INNOSPEC COM 45768S105 8,800 800 10.00 673 22.81 0.0029
2018-04-20 2018-03-31 13F INNOSPEC COM 45768S105 8,000 0 0.00 548 -2.84 0.0024
2018-01-23 2017-12-31 13F INNOSPEC COM 45768S105 8,000 0 0.00 564 14.40 0.0024
2017-10-23 2017-09-30 13F INNOSPEC COM 45768S105 8,000 -5,600 -41.18 493 -44.67 0.0021
2017-07-26 2017-06-30 13F INNOSPEC COM 45768S105 13,600 800 6.25 891 7.61 0.0040
2017-04-26 2017-03-31 13F INNOSPEC COM 45768S105 12,800 5,900 85.51 828 75.42 0.0036
2017-01-24 2016-12-31 13F INNOSPEC COM 45768S105 6,900 -9,900 -58.93 472 -53.77 0.0021
2016-10-27 2016-09-30 13F INNOSPEC COM 45768S105 16,800 -2,600 -13.40 1,021 14.46 0.0046
2016-07-26 2016-06-30 13F INNOSPEC COM 45768S105 19,400 -500 -2.51 892 3.48 0.0040
2016-04-25 2016-03-31 13F/A-1 INNOSPEC COM 45768S105 19,900 2,000 11.17 862 -11.32 0.0039
2016-01-28 2015-12-31 13F INNOSPEC COM 45768S105 17,900 -1,700 -8.67 972 6.70 0.0043
2015-10-21 2015-09-30 13F INNOSPEC COM 45768S105 19,600 -1,900 -8.84 911 -5.89 0.0043
2015-08-04 2015-06-30 13F INNOSPEC COM 45768S105 21,500 0 0.00 968 -2.91 0.0043
2015-04-27 2015-03-31 13F/A-1 INNOSPEC COM 45768S105 21,500 19,500 975.00 997 1,007.78 0.0044
2015-04-21 2015-03-31 13F INNOSPEC COM 45768S105 21,500 997
2014-04-28 2014-03-31 13F INNOSPEC COM 45768S105 2,000 -7,600 -79.17 90 -79.73 0.0004
2014-01-30 2013-12-31 13F INNOSPEC COM 45768S105 9,600 -16,500 -63.22 444 -63.55 0.0020
2013-10-24 2013-09-30 13F INNOSPEC COM 45768S105 26,100 -900 -3.33 1,218 12.26 0.0054
2013-08-12 2013-06-30 13F INNOSPEC COM 45768S105 27,000 27,000 1,085 0.0047
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.