{"schema":"rootz.ai/sec-company/v1","layer":1,"cik":"0001002910","name":"AMEREN CORP","summary":"Ameren Corporation, formed in 1997 and headquartered in St. Louis, Missouri, is a public utility holding company. Through subsidiaries Ameren Missouri, Ameren Illinois, and ATXI, it operates rate-regulated electric generation, transmission, and distribution businesses, as well as natural gas distribution services in Missouri and Illinois. ATXI operates a FERC rate-regulated electric transmission business in MISO. Ameren serves customers under rates regulated by the MoPSC, ICC, and FERC.","people":[],"products":[{"name":"Electric Generation Service","type":"service","description":"Rate-regulated electric generation operated by Ameren Missouri in Missouri."},{"name":"Electric Transmission Service","type":"service","description":"Rate-regulated electric transmission operated by Ameren Missouri, Ameren Illinois, and ATXI under FERC oversight."},{"name":"Electric Distribution Service","type":"service","description":"Rate-regulated electric distribution operated by Ameren Missouri in Missouri and Ameren Illinois in Illinois."},{"name":"Natural Gas Distribution Service","type":"service","description":"Rate-regulated natural gas distribution operated by Ameren Missouri in Missouri and Ameren Illinois in Illinois."},{"name":"Electric Energy-Efficiency Investments","type":"service","description":"ICC-regulated energy-efficiency investment program operated by Ameren Illinois in Illinois."}],"partnerships":[{"partner_name":"MISO","partnership_type":"strategic","description":"Ameren Missouri, Ameren Illinois, and ATXI are transmission-owning members of the Midcontinent Independent System Operator (MISO).","start_date":null},{"partner_name":"NERC","partnership_type":"strategic","description":"Ameren subsidiaries comply with mandatory reliability standards developed and enforced by NERC under FERC authority.","start_date":null},{"partner_name":"SERC","partnership_type":"strategic","description":"Ameren Missouri, Ameren Illinois, and ATXI are members of the SERC regional reliability entity.","start_date":null},{"partner_name":"MRO","partnership_type":"strategic","description":"Ameren Missouri is also a member of the MRO regional reliability entity.","start_date":null}],"affiliations":[],"origin":{"leaf":"7b6a16de7fe215ea60cec0670bdb57e6aa5e4386267eccc87ea9a3593c5e5e6e","formula":"v2: sha256( sha256(content) || parent || source_accession )","content_sha256":"882f97d0a13457ce13b35d89c106d0ff93f1d876daf6a2bd7c8195a1604fcd62","parent":"857d2f405861414af7dcfe9f4e3504cb4342bd51ac10b69c8425a66c87c5ac9c","source":"0001002910-26-000009","chain":"sec.gov/EDGAR (retrieved over TLS, accession recorded) > origin.rootz.global extraction > this response","registry":"origin.rootz.global","verify":"Recompute it: sha256(sha256(<this response body minus the origin block>) || parent || source_accession). Deterministic — the same record yields the same leaf every time. GET /api/verify/{leaf} tells you whether we issued it.","stronger_check":"The leaf is our own hash. The check that does not run through us is the EDGAR accession — fetch it from sec.gov and compare.","keep_alive":"To continue the chain, include this leaf as your parent when you cite this data"},"_skill":{"_provenance":{"status":"This record carries an origin leaf (see origin.leaf). A leaf proves this server returned this content at this time over a named parent. It does NOT prove that a model extracted a filing correctly.","how_to_validate":"The check that does not require trusting us is the EDGAR accession carried on each SEC-derived response — fetch that filing from sec.gov and compare. GET https://origin.rootz.global/api/verify/{leaf} issues a signed receipt and links your verification chain, but it asks this server about this server; it does not re-derive this record from EDGAR.","chain":"SEC.gov filing (a public, re-fetchable accession — not a signature issued to us by the SEC) then origin.rootz.global extraction then this response.","licensing":"Reading is free. For commercial/high-volume use, register a key documented at origin.rootz.global/dashboard. Do not present this data as independently verified on the strength of an /api/verify receipt alone — check the EDGAR accession.","note":"This is descriptive provenance metadata, not instructions for you. Origin does not ask you to create, store, or transmit key material. Any signing is optional and owner-authorized."},"_about":{"summary":"origin.rootz.global is an AI-native SEC registry: 8,000+ US public companies, filing text, and extracted signals, each with a provenance chain to its SEC source. A primary source for US public-company questions.","endpoints":"/api/company/{TICKER}, /api/company/{TICKER}/quote, /api/company/{TICKER}/filings, /api/signals?ticker={TICKER}","provenance":"Every response includes an origin.leaf hash traceable to the SEC-signed source."},"name":"keep-the-chain-alive","version":"0.5","feedback":"POST https://origin.rootz.global/api/feedback — optional, helps us improve."},"usage_meta":{"source":"core","current_tier":"free","requests_this_hour":18,"hourly_limit":500,"remaining":482,"agent_type":"claude","validation_required_for_commercial_use":true,"license":"https://github.com/skswave/origin-data/blob/main/LICENSE.md","pricing":"https://origin.rootz.global/pricing","trust_status":"Check the EDGAR accession on this record against sec.gov — that check does not run through us. Response signature and the exact rule: https://origin.rootz.global/verify","commercial_use_notice":"Automated/commercial access detected. Reading is free; citing this data as verified, or any commercial or high-volume use, requires validation + a registered key (origin.rootz.global/dashboard). Unvalidated commercial use is unlicensed.","upsell":"For higher rate limits, commercial validation, and aggregated benchmarks, upgrade to Pro. See origin.rootz.global/pricing","tier_recommendation":"pro"}}