Chris Hohn’s Martin Marietta Matls Inc (MLM) position
Reported position history, portfolio importance and verified filing changes from public SEC disclosures.
At a glance
The full verified relationship, including prior ownership episodes and exits where supported.
TCI Fund Management Ltd first reported Martin Marietta Matls Inc in Q2 2026. TCI Fund Management Ltd currently reports 1.32M shares. The latest verified filing showed: New position.
Position over time
See the same verified relationship through reported shares, portfolio weight or reported value.
Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.
What changed
Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.
Filing context
Quarter-end price $576.70 · Estimated holding basis $576.70
How important is Martin Marietta Matls Inc in TCI Fund Management Ltd’s reported portfolio?
Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.
Who else owns Martin Marietta Matls Inc?
Also reported by 2 other tracked investors in their latest verified filings.
SEC filing evidence
Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.
Market context only; not an investor transaction price.
Derived from validated reported value and shares where supported.
Calculated from supported filing history.
This tracker follows TCI Fund Management Ltd’s Form 13F disclosures, not Chris Hohn’s personal brokerage account. Form 13F reports quarter-end positions later and does not reveal exact trade dates or execution prices.