Search by former company names

GET/api/lookup/former-names

Finds companies that previously operated under a different legal name. Useful for tracking corporate rebrandings and name changes (e.g. searching "Facebook" finds Meta Platforms).

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Query parameters

searchString string required min length 2 · max length 50

Search term to match against former company names

Example: Facebook
limit integer optional min 1 · max 50 · default 10

Maximum number of results

Example request

curl 'https://api.stockfit.io/v1/api/lookup/former-names?searchString=Facebook' \
  -H 'Authorization: Bearer YOUR_API_TOKEN'

Responses

200 OK

Matching companies with their current profile and former names

Response schema

array of:

symbols array of string
Tickers of the entity's currently active listings, primary first. Positionally aligned with `exchanges` (symbols[i] trades on exchanges[i]); not deduplicated, so a multi-class issuer lists every class.
exchanges array of string
Exchange for each ticker in `symbols`, in the same order. Not deduplicated.
name string
Company or fund name
cik integer
SEC Central Index Key
seriesId integer
Series ID (0 for stocks, non-zero for ETF/mutual fund series sharing a CIK)
type string (enum)
Security type
Allowed values: stock, etf, mf
sector string | null
Business sector derived from SIC code
industry string | null
Industry classification derived from SIC code
industryGroup string | null
High-value industry group (Semiconductors, Software & SaaS, Pharma & Biotech, Aerospace & Defense, Automotive, Airlines, Oil & Gas, Fintech & Payments). Null if company is not in one of these groups.
compositeFigi string | null
Bloomberg Composite FIGI
ein integer | null
Employer Identification Number
formerNames array of string
Previous legal names of the company
status string (enum)
Operating status. `delisted` ONLY when the entity has no active listing left on ANY exchange (it has gone fully dark and no longer trades anywhere we track, including OTC). A company that left a major exchange but still trades over-the-counter reads `operating`; see `priorTickers` for the listings it has left behind.
Allowed values: operating, delisted
priorTickers array of object
Listings the entity no longer trades on (delisted), e.g. a Nasdaq listing left behind after a move to OTC. The currently active listings are in `symbols`/`exchanges`. Empty for entities that never left a listing.
array of:
- symbol string
  The former ticker on this venue
- exchange string
  The exchange the entity has since left
- lastSeen string (date) | null
  The most recent date (ISO 8601) this former ticker was confirmed active — its last-seen date, i.e. roughly when the entity stopped trading under it. For a clean ticker rename (no SEC Form 25/15 removal filing) this approximates the switchover and may be a recent period-end rather than the exact change date. Null when unknown.

Example response

[
  {
    "symbols": [
      "BRK-B",
      "BRK-A"
    ],
    "exchanges": [
      "NYSE",
      "NYSE"
    ],
    "name": "Apple Inc.",
    "cik": 320193,
    "seriesId": 0,
    "type": "stock",
    "sector": "Technology",
    "industry": "Consumer Electronics",
    "industryGroup": "Software & SaaS",
    "compositeFigi": "BBG000B9XRY4",
    "ein": 942404110,
    "formerNames": [
      "FACEBOOK INC",
      "THEFACEBOOK INC"
    ],
    "status": "operating",
    "priorTickers": [
      {
        "symbol": "NLST",
        "exchange": "Nasdaq",
        "lastSeen": "2023-09-30"
      }
    ]
  }
]

400 Bad Request

Invalid search string

Response schema

error string
Human-readable error message

Example response

{}

403 Forbidden

Feature not available on current plan

Response schema

error string
Human-readable error message

Example response

{}