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Jeremy Grantham's Martin Marietta Materials, Inc. (MLM) position

Yes: as of Q1 2026, Jeremy Grantham holds 9K shares of MLM worth $5.5M (0.0% of the disclosed portfolio). Last quarter the position was reduced by 3.5%. First disclosed Q4 2024.
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Current value
$5.5M
Shares held
9K
% of portfolio
0.0%
Est. average buy price (i)
$622.03
Quarter-end price
$588.68

Estimated trade prices

Average price in quarters with purchases
$603.31
Average prices in quarters with sales
  • Q1 2026: $637.65 (340 shares sold)

MLM price vs Grantham's position

1Y 3Y 5Y MAX
Dates
$200$400$600$80020222023202420252026New position of 5K shares · Q4 2024. Average closing price $567.37 · Price range $516.50–$619.585KsharespurchasedNew position of 10K shares · Q4 2025. Average closing price $622.03 · Price range $589.97–$656.8510KsharespurchasedSold 340 shares (3.5%) · Q1 2026. Average closing price $637.65 · Price range $560.69–$700.70340sharessold
Average closing price · filing quarter
$637.65
Price range · filing quarter
$560.69 – $700.70
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −340 −$217K −3.5% 9K May 14, 2026
Q4 2025 New +10K +$6.0M – 10K Feb 17, 2026
Q4 2024 New +5K +$2.8M – 5K Feb 13, 2025
Data through Q1 2026 · filed May 14, 2026
3 grouped rows from 3 quarters

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Common questions

Does Jeremy Grantham own MLM?

Yes. As of Q1 2026, Jeremy Grantham disclosed 9K shares of MLM, worth $5.5M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jeremy Grantham buy MLM?

Jeremy Grantham first disclosed a MLM position in Q4 2024; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jeremy Grantham sell MLM?

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

How many shares of MLM does Jeremy Grantham own?

Jeremy Grantham disclosed 9K shares of MLM as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jeremy Grantham pay for MLM?

Jeremy Grantham's estimated average buy price for MLM is $622.03, 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.