Close the acquisition of Lehigh Hanson's West Region business
Delivered by the deadline
AI-confirmed · human review in progress Independent AI checks agreed on primary SEC or regulator evidence. Records are now being reviewed by hand, starting with those our customers order.
- Announced
- 24 May 2021
- Due
- 31 Dec 2021
- Delivered
- 1 Oct 2021
- Deadline
- Met
- Late
- Not met
- Today
What the company said
“Martin Marietta expects the transaction to close in the second half of 2021, subject to regulatory approvals and other customary closing conditions”
What we found
Evidence strength A What the grades mean
Martin Marietta completed the acquisition of the Lehigh Hanson West Region business on October 1, 2021, which falls within the second half of 2021.
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A Martin Marietta Materials 10-K filed 2022-02-22
“On October 1, 2021, the Company acquired the Lehigh Hanson West Region business (Lehigh West Region) for $2.28 billion in cash.” ✓ confirmed on the page
Market reaction: the shares moved -2.4% against the S&P 500 over the three sessions around the disclosure (18 Feb 2022 to 24 Feb 2022). What this measures
Checked 18 Oct 2026.
Commitment DNA
The structured record of this commitment. Fields the company did not state are left blank rather than guessed.
- Event type
- Acquisition close
- Indicative materiality
- High rules
- Action
- Close
- Deliverable
- Lehigh Hanson's West Region business
- Where
- California and Arizona
- Language
- Expected (“expects”, “plans”)
- In the company’s control
- Medium
- Specificity
- High
- Conditional
- Yes: subject to regulatory approvals; subject to other customary closing conditions
- Depends on
- Regulatory, Counterparty
How this entry was checked
- Commitment recordedThe company's words were matched word for word against the filing.
- First checkAn AI model, Gemini (Google), read the company's later filings and recorded the outcome with a quoted passage.
- Second check: agreesA different AI model, Claude (Anthropic), re-read the evidence without being told the outcome and reached the same answer.
Confirmed. This outcome counts towards the company's Kept Score. How verification works
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Report an error in this entry Reference: KI-C-2021-MLM-015008 · Corrections policy