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Jeremy Grantham's Innospec Inc. (IOSP) position

Not anymore: Jeremy Grantham fully exited IOSP in Q2 2023. The position peaked at $2.3M in Q2 2022.
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Value at exit
$575K
Shares at exit
6K
Est. average buy price (i)
$95.76
Quarter-end price
$102.67

Estimated trade prices

Average price in quarters with purchases
$95.76
Average prices in quarters with sales
  • Q1 2023: $107.62 (5K shares sold)
  • Q4 2022: $101.53 (2K shares sold)
  • Q3 2022: $94.45 (12K shares sold)

IOSP price vs Grantham's position

1Y 3Y 5Y MAX
Dates
$50$100$15020222023202420252026New position of 14K shares · Q1 2022. Average closing price $94.69 · Price range $89.67–$99.6814KsharespurchasedAdded 10K shares (74.6%) · Q2 2022. Average closing price $97.20 · Price range $87.29–$106.0310KsharespurchasedSold 12K shares (47.7%) · Q3 2022. Average closing price $94.45 · Price range $85.49–$103.1112KsharessoldSold 2K shares (15.1%) · Q4 2022. Average closing price $101.53 · Price range $84.41–$112.662KsharessoldSold 5K shares (47.7%) · Q1 2023. Average closing price $107.62 · Price range $99.19–$115.315Ksharessold
Average closing price · filing quarter
$107.62
Price range · filing quarter
$99.19 – $115.31
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q2 2023 Exited −6K −$561K −100.0% 0 Aug 14, 2023
Q1 2023 Reduced −5K −$549K −47.7% 6K May 12, 2023
Q4 2022 Reduced −2K −$193K −15.1% 11K Feb 13, 2023
Q3 2022 Reduced −12K −$1.1M −47.7% 13K Nov 10, 2022
Q2 2022 Added +10K +$1.0M +74.6% 24K Aug 12, 2022
Q1 2022 New +14K +$1.3M – 14K May 13, 2022
Q1 2021 First covered – – – 6K May 13, 2021
Data through Q2 2023 · filed Aug 14, 2023
7 grouped rows from 7 quarters

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Common questions

Does Jeremy Grantham own IOSP?

Not currently. Jeremy Grantham fully exited IOSP in Q2 2023, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jeremy Grantham buy IOSP?

Jeremy Grantham held IOSP since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jeremy Grantham sell IOSP?

Yes. Jeremy Grantham reduced and then fully exited IOSP by Q2 2023; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of IOSP does Jeremy Grantham own?

None as of the latest filing: Jeremy Grantham has exited IOSP. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jeremy Grantham pay for IOSP?

Jeremy Grantham's estimated average buy price for IOSP is $95.76, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.