Vanguard Group Inc ownership in IOSP / Innospec Inc.

이노스펙(주)

US ˙ NasdaqGS ˙ US45768S1050

Security	IOSP / Innospec Inc.
Institution	Vanguard Group Inc
Latest Disclosed Ownership	0 shares
Ownership	0.00%

2026-03-27 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Innospec Inc. (US:IOSP). This represents 0.0 percent ownership of the company. In their previous filing dated 2024-02-13 , Vanguard Group Inc had reported owning 2,953,893 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2026-03-27	2026-03-27	13G/A	2,953,893	0	-100.00	0.00	-100.00
2024-02-13	2024-02-13	13G/A	2,889,993	2,953,893	2.21	11.88	1.80
2023-02-09	2023-02-09	13G/A	2,716,506	2,889,993	6.39	11.67	5.90
2022-02-10	2022-02-10	13G/A	2,528,521	2,716,506	7.43	11.02	7.09
2021-02-10	2021-02-10	13G/A	2,596,035	2,528,521	-2.60	10.29	-2.83
2020-02-12	2020-02-12	13G/A	2,509,196	2,596,035	3.46	10.59	3.12
2019-02-11	2019-02-11	13G/A	2,443,962	2,509,196	2.67	10.27	2.60
2018-07-10	2018-07-10	13G/A	2,241,169	2,443,962	9.05	10.01	7.87
2018-02-09	2018-02-09	13G/A	1,982,465	2,241,169	13.05	9.28	12.35
2017-02-10	2017-02-10	13G/A	1,798,805	1,982,465	10.21	8.26	10.72
2016-02-10	2016-02-10	13G/A		1,798,805		7.46
2015-02-10	2015-02-10	13G/A		1,402,420		5.74
2014-02-11	2014-02-11	13G		1,250,802		5.26

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-01-29	2025-12-31	13F	INNOSPEC	COM	45768S105	3,121,151	-22,271	-0.71	238,893	-1.51	0.0035
2025-11-07	2025-09-30	13F	INNOSPEC	COM	45768S105	3,143,422	-19,519	-0.62	242,546	-8.81	0.0036
2025-08-11	2025-06-30	13F	INNOSPEC	COM	45768S105	3,162,941	-47,827	-1.49	265,972	-12.57	0.0043
2025-05-09	2025-03-31	13F	INNOSPEC	COM	45768S105	3,210,768	30,031	0.94	304,220	-13.10	0.0055
2025-02-11	2024-12-31	13F	INNOSPEC	COM	45768S105	3,180,737	7,100	0.22	350,072	-2.46	0.0061
2024-11-13	2024-09-30	13F	INNOSPEC	COM	45768S105	3,173,637	35,931	1.15	358,907	-7.45	0.0064
2024-08-13	2024-06-30	13F	INNOSPEC	COM	45768S105	3,137,706	22,539	0.72	387,789	-3.46	0.0074
2024-05-10	2024-03-31	13F	INNOSPEC	COM	45768S105	3,115,167	161,249	5.46	401,670	10.34	0.0080
2024-03-11	2023-12-31	13F/A-1	INNOSPEC	COM	45768S105	2,953,918	12,562	0.43	364,041	21.10	0.0080
2024-02-14	2023-12-31	13F	INNOSPEC	COM	45768S105	2,953,918	12,562		364,041		0.0069
2023-12-18	2023-09-30	13F/A-1	INNOSPEC	COM	45768S105	2,941,356	11,502	0.39	300,607	2.15	0.0074
2023-11-14	2023-09-30	13F	INNOSPEC	COM	45768S105	2,941,356	11,502		300,607		0.0074
2023-08-14	2023-06-30	13F	INNOSPEC	COM	45768S105	2,929,854	-20,860	-0.71	294,275	-2.86	0.0070
2023-07-14	2023-03-31	13F/A-1	INNOSPEC	COM	45768S105	2,950,714	60,721	2.10	302,950	1.91	0.0077
2023-05-15	2023-03-31	13F	INNOSPEC	COM	45768S105	2,950,714	60,721		302,950		0.0016
2023-02-10	2022-12-31	13F	INNOSPEC	COM	45768S105	2,889,993	43,631	1.53	297,265	21.91	0.0081
2022-11-14	2022-09-30	13F	INNOSPEC	COM	45768S105	2,846,362	36,583	1.30	243,847	-9.40	0.0072
2022-08-12	2022-06-30	13F	INNOSPEC	COM	45768S105	2,809,779	45,925	1.66	269,149	5.22	0.0076
2022-05-13	2022-03-31	13F	INNOSPEC	COM	45768S105	2,763,854	47,348	1.74	255,795	4.23	0.0061
2022-02-14	2021-12-31	13F	INNOSPEC	COM	45768S105	2,716,506	60,932	2.29	245,409	9.73	0.0056
2021-11-12	2021-09-30	13F	INNOSPEC	COM	45768S105	2,655,574	15,599	0.59	223,653	-6.50	0.0056
2021-08-13	2021-06-30	13F	INNOSPEC	COM	45768S105	2,639,975	23,761	0.91	239,208	-10.96	0.0060
2021-05-14	2021-03-31	13F	INNOSPEC	COM	45768S105	2,616,214	87,693	3.47	268,660	17.11	0.0073
2021-02-12	2020-12-31	13F	INNOSPEC	COM	45768S105	2,528,521	65,588	2.66	229,413	47.10	0.0067
2020-11-16	2020-09-30	13F	INNOSPEC	COM	45768S105	2,462,933	-134,384	-5.17	155,953	-22.27	0.0052
2020-08-14	2020-06-30	13F	INNOSPEC	COM	45768S105	2,597,317	-45,381	-1.72	200,643	9.26	0.0071
2020-05-15	2020-03-31	13F	INNOSPEC	COM	45768S105	2,642,698	46,663	1.80	183,641	-31.61	0.0078
2020-02-14	2019-12-31	13F	INNOSPEC	COM	45768S105	2,596,035	21,510	0.84	268,533	17.01	0.0092
2019-11-14	2019-09-30	13F	INNOSPEC	COM	45768S105	2,574,525	-1,630	-0.06	229,492	-2.36	0.0085
2019-08-14	2019-06-30	13F	INNOSPEC	COM	45768S105	2,576,155	4,673	0.18	235,048	9.66	0.0088
2019-05-15	2019-03-31	13F	INNOSPEC	COM	45768S105	2,571,482	62,286	2.48	214,333	38.31	0.0084
2019-02-14	2018-12-31	13F	INNOSPEC	COM	45768S105	2,509,196	28,781	1.16	154,968	-18.60	0.0070
2018-12-13	2018-09-30	13F/A-2	INNOSPEC	COM	45768S105	2,480,415	36,453	1.49	190,371	1.76	0.0074
2018-11-23	2018-09-30	13F/A-1	INNOSPEC	COM	45768S105	2,480,415	0		190,371		0.0074
2018-11-14	2018-09-30	13F	INNOSPEC	COM	45768S105	2,480,415	36,453		190,371
2018-08-14	2018-06-30	13F	INNOSPEC	COM	45768S105	2,443,962	83,078	3.52	187,086	15.52	0.0078
2018-05-15	2018-03-31	13F	INNOSPEC	COM	45768S105	2,360,884	119,715	5.34	161,957	2.36	0.0071
2018-02-14	2017-12-31	13F	INNOSPEC	COM	45768S105	2,241,169	-6,832	-0.30	158,227	14.17	0.0069
2017-11-14	2017-09-30	13F	INNOSPEC	COM	45768S105	2,248,001	62,800	2.87	138,590	-3.25	0.0065
2017-08-24	2017-06-30	13F/A-1	INNOSPEC	COM	45768S105	2,185,201	82,013	3.90	143,239	5.18	0.0071
2017-08-11	2017-06-30	13F	INNOSPEC	COM	45768S105	2,185,201	82,013		143,239
2017-05-12	2017-03-31	13F	INNOSPEC	COM	45768S105	2,103,188	120,723	6.09	136,181	0.28	0.0070
2017-02-14	2016-12-31	13F	INNOSPEC	COM	45768S105	1,982,465	68,150	3.56	135,799	16.66	0.0076
2016-11-14	2016-09-30	13F	INNOSPEC	COM	45768S105	1,914,315	78,095	4.25	116,409	37.85	0.0068
2016-08-10	2016-06-30	13F	INNOSPEC	COM	45768S105	1,836,220	-23,287	-1.25	84,448	4.74	0.0052
2016-05-13	2016-03-31	13F	INNOSPEC	COM	45768S105	1,859,507	60,702	3.37	80,628	-17.47	0.0052
2016-02-08	2015-12-31	13F	INNOSPEC	COM	45768S105	1,798,805	46,243	2.64	97,692	19.85	0.0066
2015-11-12	2015-09-30	13F/A-1	INNOSPEC	COM	45768S105	1,752,562	245,670	16.30	81,512	20.10	0.0035
2015-11-12	2015-09-30	13F/A-1	INNOSPEC	COM	45768S105	1,752,562	245,670		81,512		0.0035
2015-11-12	2015-09-30	13F	INNOSPEC	COM	45768S105	1,752,562			81,512
2015-08-13	2015-06-30	13F	INNOSPEC	COM	45768S105	1,506,892	33,888	2.30	67,870	-0.68	0.0046
2015-05-15	2015-03-31	13F/A-1	INNOSPEC	COM	45768S105	1,473,004	70,584	5.03	68,333	14.11	0.0046
2015-05-14	2015-03-31	13F	INNOSPEC	COM	45768S105	1,473,004			68,333
2015-02-12	2014-12-31	13F	INNOSPEC	COM	45768S105	1,402,420	6,947	0.50	59,883	19.53	0.0043
2014-11-12	2014-09-30	13F	INNOSPEC	COM	45768S105	1,395,473	32,582	2.39	50,097	-14.85	0.0039
2014-08-11	2014-06-30	13F	INNOSPEC	COM	45768S105	1,362,891	22,886	1.71	58,836	-2.93	0.0046
2014-05-13	2014-03-31	13F	INNOSPEC	COM	45768S105	1,340,005	89,203	7.13	60,609	4.84	0.0051
2014-02-12	2013-12-31	13F	INNOSPEC	COM	45768S105	1,250,802	57,316	4.80	57,812	3.81	0.0051
2013-11-07	2013-09-30	13F	INNOSPEC	COM	45768S105	1,193,486	238,486	24.97	55,688	45.13	0.0054
2013-08-13	2013-06-30	13F	INNOSPEC	COM	45768S105	955,000	955,000		38,372		0.0040

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.