The company has successfully converted over 90% of its Type I/II cement customers to its PLC product, a key sustainability initiative that has lowered the carbon footprint of its cement line. This signals active investment in and adoption of greener products and processes.
Filing excerpt
The Company has continued its rollout of Portland Limestone Cement (PLC) with more than 90% of its Type I/II customers converted to the PLC product. PLC has reduced the GHG footprint of the Company's cement product line more than 10%.
What this signalsFilings often name leadership changes, deals and spending plans.
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This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.
Company
linkedin_urlValue in the APIindustriesValue in the APIemployee_count_lowValue in the APIemployee_count_highValue in the APIrevenueValue in the APIdescriptionValue in the APISignal
signal_nameValue in the APIassociationValue in the APIGET /v1/signals/6e4c99c6-6113-49d9-834d-b60cf171b03b returns this record as JSON. POST /v1/companies/enrich returns every signal for martinmarietta.com.
{
"signal_id": "6e4c99c6-6113-49d9-834d-b60cf171b03b",
"signal_type": "sec-10k",
"signal_subtype": "sustainabilityInvestment",
"detected_at": "2026-02-24T09:23:47.42+00:00",
"company": {
"name": "Martin Marietta Materials",
"domain": "martinmarietta.com"
},
"data": {
"detail": "The company has successfully converted over 90% of its Type I/II cement customers to its PLC product, a key sustainability initiative that has lowered the carbon footprint of its cement line. This signals active investment in and adoption of greener products and processes.",
"metrics": {
"pct": 0.1,
"pct_context": "GHG footprint reduction from cement product line"
},
"summary": "Reduced GHG footprint by over 10% via Portland Limestone Cement (PLC) rollout",
"excerpts": "The Company has continued its rollout of Portland Limestone Cement (PLC) with more than 90% of its Type I/II customers converted to the PLC product. PLC has reduced the GHG footprint of the Company's cement product line more than 10%.",
"relevance": 0.75,
"sentiment": "positive",
"confidence": "high",
"source_url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/mlm-20251231.htm",
"filing_date": "2026-02-19",
"filing_year": 2026,
"fiscal_year_end": "12/31",
"sales_relevance": "ESG reporting tools needed",
"signal_category": "esg"
}
}
curl https://signals.autobound.ai/v1/signals/6e4c99c6-6113-49d9-834d-b60cf171b03b \
-H "X-API-KEY: $AUTOBOUND_API_KEY"curl -X POST https://signals.autobound.ai/v1/companies/enrich \
-H "X-API-KEY: $AUTOBOUND_API_KEY" \
-H "Content-Type: application/json" \
-d '{"domain":"martinmarietta.com","limit":20}'Long text fields are shortened on this page.
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