Innospec Inc.
US ˙ NasdaqGS ˙ US45768S1050

SecurityIOSP / Innospec Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership7,135 shares
Latest Disclosed Value $ 521
Amalgamated Bank reports 1.11% decrease in ownership of IOSP / Innospec Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 7,135 shares of Innospec Inc. (US:IOSP) valued at $520,998 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 7,215 shares of Innospec Inc.. The current value of the position is $575,652 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)
2026-05-08 2026-03-31 13F INNOSPEC COM 45768S105 7,135 -80 -1.11 1 0.0040
2026-02-05 2025-12-31 13F INNOSPEC COM 45768S105 7,215 -8 -0.11 1 0.0040
2025-10-29 2025-09-30 13F INNOSPEC COM 45768S105 7,223 96 1.35 1 0.0040
2025-08-04 2025-06-30 13F INNOSPEC COM 45768S105 7,127 13 0.18 1 0.0046
2025-04-25 2025-03-31 13F INNOSPEC COM 45768S105 7,114 -203 -2.77 1 0.0058
2025-02-04 2024-12-31 13F INNOSPEC COM 45768S105 7,317 -41 -0.56 1 0.0066
2024-10-30 2024-09-30 13F INNOSPEC COM 45768S105 7,358 -261 -3.43 1 0.0069
2024-08-12 2024-06-30 13F INNOSPEC COM 45768S105 7,619 -117 -1.51 1 0.0080
2024-04-23 2024-03-31 13F INNOSPEC COM 45768S105 7,736 -2,833 -26.80 1 -100.00 0.0085
2024-02-06 2023-12-31 13F INNOSPEC COM 45768S105 10,569 -247 -2.28 1 0.00 0.0104
2023-11-08 2023-09-30 13F INNOSPEC COM 45768S105 10,816 -369 -3.30 1 0.00 0.0094
2023-08-11 2023-06-30 13F INNOSPEC COM 45768S105 11,185 18 0.16 1 0.00 0.0091
2023-05-02 2023-03-31 13F INNOSPEC COM 45768S105 11,167 -838 -6.98 1 0.00 0.0098
2023-02-10 2022-12-31 13F INNOSPEC COM 45768S105 12,005 98 0.82 1 -99.90 0.0110
2022-11-09 2022-09-30 13F INNOSPEC COM 45768S105 11,907 89 0.75 1,020 -9.89 0.0098
2022-08-15 2022-06-30 13F INNOSPEC COM 45768S105 11,818 462 4.07 1,132 7.71 0.0106
2022-08-25 2022-03-31 13F/A-1 INNOSPEC COM 45768S105 11,356 -602 -5.03 1,051 -2.69 0.0082
2022-06-30 2022-03-31 13F INNOSPEC COM 45768S105 11,356 -602 1,051 0.0083
2022-02-15 2021-12-31 13F/A-1 INNOSPEC COM 45768S105 11,958 -175 -1.44 1,080 5.68 0.0080
2022-02-15 2021-12-31 13F INNOSPEC COM 45768S105 11,958 -175 1,080 0.0080
2021-10-29 2021-09-30 13F INNOSPEC COM 45768S105 12,133 -231 -1.87 1,022 -8.75 0.0086
2021-08-16 2021-06-30 13F INNOSPEC COM 45768S105 12,364 8,927 259.73 1,120 217.28 0.0090
2021-05-13 2021-03-31 13F INNOSPEC COM 45768S105 3,437 -275 -7.41 353 4.75 0.0132
2021-02-12 2020-12-31 13F INNOSPEC COM 45768S105 3,712 32 0.87 337 44.64 0.0128
2020-10-30 2020-09-30 13F INNOSPEC COM 45768S105 3,680 -106 -2.80 233 -20.21 0.0101
2020-08-10 2020-06-30 13F INNOSPEC COM 45768S105 3,786 -679 -15.21 292 -5.81 0.0135
2020-05-13 2020-03-31 13F INNOSPEC COM 45768S105 4,465 -153 -3.31 310 -35.15 0.0076
2020-02-13 2019-12-31 13F INNOSPEC COM 45768S105 4,618 210 4.76 478 21.63 0.0088
2019-11-13 2019-09-30 13F INNOSPEC COM 45768S105 4,408 -77 -1.72 393 -3.91 0.0083
2019-08-14 2019-06-30 13F INNOSPEC COM 45768S105 4,485 915 25.63 409 37.25 0.0095
2019-05-15 2019-03-31 13F INNOSPEC COM 45768S105 3,570 118 3.42 298 39.91 0.0072
2019-02-15 2018-12-31 13F INNOSPEC COM 45768S105 3,452 -58 -1.65 213 -20.82 0.0060
2018-11-14 2018-09-30 13F INNOSPEC COM 45768S105 3,510 -39 -1.10 269 -1.10 0.0067
2018-07-18 2018-06-30 13F INNOSPEC COM 45768S105 3,549 128 3.74 272 15.74 0.0066
2018-05-22 2018-03-31 13F INNOSPEC COM 45768S105 3,421 -45 -1.30 235 -4.08 0.0062
2018-02-13 2017-12-31 13F INNOSPEC COM 45768S105 3,466 3,466 245 0.0066
2017-11-09 2017-09-30 13F INNOSPEC COM 45768S105 0 -3,257 -100.00 0 -100.00
2017-08-10 2017-06-30 13F INNOSPEC COM 45768S105 3,257 57 1.78 213 2.90 0.0070
2017-05-12 2017-03-31 13F INNOSPEC COM 45768S105 3,200 -1 -0.03 207 -5.48 0.0103
2017-02-14 2016-12-31 13F INNOSPEC COM 45768S105 3,201 3,201 219 0.0099
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.