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Ken Griffin's NewMarket Corporation (NEU) position

Yes: as of Q1 2026, Ken Griffin holds 28K shares of NEU worth $18M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$18M
Shares held
28K
% of portfolio
0.0%
Est. average buy price (i)
$649.07
Quarter-end price
$640.95

Estimated trade prices

Average price in quarters with purchases
$573.03
Average prices in quarters with sales
  • Q3 2025: $770.10 (3K shares sold)
  • Q2 2024: $556.06 (6K shares sold)
  • Q3 2023: $451.44 (3K shares sold)
  • Q4 2022: $307.62 (3K shares sold)
  • Q2 2022: $323.13 (8K shares sold)
  • Q3 2021: $327.70 (11K shares sold)
  • Q2 2021: $349.78 (5K shares sold)

NEU price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$200$500$1,00020192020202120222023202420252026Sold 5K shares (24.6%) · Q2 2021. Average closing price $349.78 · Price range $306.92–$388.665KsharessoldSold 11K shares (66.0%) · Q3 2021. Average closing price $327.70 · Price range $300.30–$349.7311KsharessoldAdded 201 shares (3.6%) · Q4 2021. Average closing price $344.89 · Price range $321.26–$376.51201sharespurchasedAdded 3K shares (55.7%) · Q1 2022. Average closing price $327.67 · Price range $298.14–$357.053KsharespurchasedSold 8K shares (87.2%) · Q2 2022. Average closing price $323.13 · Price range $289.28–$350.838KsharessoldAdded 3K shares (227.8%) · Q3 2022. Average closing price $299.85 · Price range $281.43–$310.943KsharespurchasedSold 3K shares (66.3%) · Q4 2022. Average closing price $307.62 · Price range $289.18–$322.753KsharessoldNew position of 5K shares · Q2 2023. Average closing price $389.98 · Price range $361.40–$409.415KsharespurchasedSold 3K shares (67.6%) · Q3 2023. Average closing price $451.44 · Price range $412.07–$472.023KsharessoldAdded 274 shares (17.0%) · Q4 2023. Average closing price $502.79 · Price range $437.40–$560.57274sharespurchasedAdded 7K shares (370.7%) · Q1 2024. Average closing price $599.23 · Price range $547.69–$643.897KsharespurchasedSold 6K shares (64.7%) · Q2 2024. Average closing price $556.06 · Price range $510.52–$633.526KsharessoldNew position of 5K shares · Q2 2025. Average closing price $620.34 · Price range $519.95–$690.865KsharespurchasedSold 3K shares (58.9%) · Q3 2025. Average closing price $770.10 · Price range $678.97–$851.003KsharessoldNew position of 28K shares · Q1 2026. Average closing price $649.07 · Price range $584.66–$728.6128Ksharespurchased
Average closing price · filing quarter
$649.07
Price range · filing quarter
$584.66 – $728.61
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 New +28K +$18M – 28K May 15, 2026
Q3 2025 Reduced −3K −$2.1M −58.9% 2K Nov 14, 2025
Q2 2025 New +5K +$2.9M – 5K Aug 14, 2025
Q2 2024 Reduced −6K −$3.2M −64.7% 3K Aug 14, 2024
Q1 2024 Added +7K +$4.2M +370.7% 9K May 15, 2024
Q4 2023 Added +274 +$138K +17.0% 2K Feb 14, 2024
Q3 2023 Reduced −3K −$1.5M −67.6% 2K Nov 14, 2023
Q2 2023 New +5K +$1.9M – 5K Aug 14, 2023
Q4 2022 Reduced −3K −$779K −66.3% 1K Feb 14, 2023
Q3 2022 Added +3K +$796K +227.8% 4K Nov 14, 2022
Q2 2022 Reduced −8K −$2.6M −87.2% 1K Aug 15, 2022
Q1 2022 Added +3K +$1.1M +55.7% 9K May 16, 2022
Q4 2021 Added +201 +$69K +3.6% 6K Feb 14, 2022
Q3 2021 Reduced −11K −$3.6M −66.0% 6K Nov 15, 2021
Q2 2021 Reduced −5K −$1.9M −24.6% 17K Aug 16, 2021
Q1 2021 First covered – – – 22K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
16 grouped rows from 16 quarters

More Griffin positions

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Apple Inc.(AAPL)
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Common questions

Does Ken Griffin own NEU?

Yes. As of Q1 2026, Ken Griffin disclosed 28K shares of NEU, worth $18M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy NEU?

Ken Griffin held NEU 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 Ken Griffin sell NEU?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in NEU. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of NEU does Ken Griffin own?

Ken Griffin disclosed 28K shares of NEU as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for NEU?

Ken Griffin's estimated average buy price for NEU is $649.07, 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.