英諾斯佩克公司
US ˙ NasdaqGS ˙ US45768S1050

SecurityIOSP / Innospec Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership42,887 shares
Latest Disclosed Value $ 3,606,367
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 0.94% increase in ownership of IOSP / Innospec Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 42,887 shares of Innospec Inc. (US:IOSP) valued at $3,606,368 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 42,486 shares of Innospec Inc.. This represents a change in shares of 0.94% during the quarter. The current value of the position is $3,460,123 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.

Upgrade to unlock premium data and export to Excel .

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)
2025-08-26 2025-06-30 NP Innospec EC US45768S1050 42,887 401 0.94 3,606 -10.41 0.0810
2025-05-28 2025-03-31 NP Innospec EC US45768S1050 42,486 451 1.07 4,026 -12.99 0.0966
2025-02-25 2024-12-31 NP Innospec EC US45768S1050 42,035 -6,879 -14.06 4,626 -16.36 0.1010
2024-11-26 2024-09-30 NP Innospec EC US45768S1050 48,914 1,550 3.27 5,532 -5.50 0.1046
2024-08-26 2024-06-30 NP Innospec EC US45768S1050 47,364 3,617 8.27 5,854 3.78 0.1192
2024-05-28 2024-03-31 NP Innospec EC US45768S1050 43,747 -1,713 -3.77 5,641 0.68 0.1177
2024-02-26 2023-12-31 NP Innospec EC US45768S1050 45,460 3,169 7.49 5,602 29.62 0.1196
2023-11-28 2023-09-30 NP Innospec EC US45768S1050 42,291 -424 -0.99 4,322 0.75 0.1128
2023-08-25 2023-06-30 NP Innospec EC US45768S1050 42,715 3,288 8.34 4,290 6.00 0.1017
2023-05-26 2023-03-31 NP Innospec EC US45768S1050 39,427 358 0.92 4,048 0.72 0.1078
2023-02-24 2022-12-31 NP Innospec EC US45768S1050 39,069 -321 -0.81 4,019 19.09 0.1105
2022-11-25 2022-09-30 NP Innospec EC US45768S1050 39,390 1,134 2.96 3,375 -7.91 0.0967
2022-08-25 2022-06-30 NP Innospec EC US45768S1050 38,256 56 0.15 3,665 3.65 0.1012
2022-05-26 2022-03-31 NP Innospec EC US45768S1050 38,200 618 1.64 3,535 4.12 0.0824
2022-02-25 2021-12-31 NP Innospec EC US45768S1050 37,582 -777 -2.03 3,395 5.11 0.0736
2021-11-24 2021-09-30 NP Innospec EC US45768S1050 38,359 0 0.00 3,231 -7.05 0.0712
2021-08-26 2021-06-30 NP Innospec EC US45768S1050 38,359 1,688 4.60 3,476 -7.70 0.0746
2021-05-27 2021-03-31 NP Innospec EC US45768S1050 36,671 -735 -1.96 3,766 10.96 0.0854
2021-02-25 2020-12-31 NP Innospec EC US45768S1050 37,406 -3,014 -7.46 3,394 32.59 0.0870
2020-11-25 2020-09-30 NP Innospec EC US45768S1050 40,420 -1,235 -2.96 2,559 -20.45 0.0821
2020-08-27 2020-06-30 NP Innospec EC US45768S1050 41,655 2,017 5.09 3,218 16.81 0.1052
2020-06-01 2020-03-31 NP Innospec EC US45768S1050 39,638 2,099 5.59 2,754 -29.08 0.1126
2020-02-27 2019-12-31 NP Innospec EC 45768S105 37,539 524 1.42 3,883 17.70 0.1168
2019-11-27 2019-09-30 NP Innospec EC US45768S1050 37,015 37,015 3,300 0.1091
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.