GET/v1/ownership/activist-campaignsTier · Institutional

List Activist Campaigns

Active and recent activist campaigns market-wide.

A campaign here means a filer × issuer pair where either the filer's stated holding purpose is classified activist, OR we've detected activist_escalation signals against them. Each row includes intensity (high/medium/low), escalation count, important- proposal count, and the trajectory window. Ranked by most recent activity.

Query parameters · 1

Optional filters and modifiers. Pass as URL-encoded ?key=value.

limitintegeroptional

Max results

default 20

Request headers · 1

Authentication.

Authorizationstringrequired

Production API key. Pass it as Bearer ax_live_…

Returns · 200

The standard { data, meta } envelope. data contains an array of ActivistCampaignOut.

Envelope

dataActivistCampaignOut[]

Array of result objects.

metaMeta

Pagination and request metadata, including request_id, data_as_of, and ontology_version.

ontology_version 2.1.0replay meta.as_of · ?as_of=<token>

ActivistCampaignOut

filer_codestring | null

Activist filer EDINET code. Null when the filer is a group of entities with no single EDINET code of its own; use filer_name.

filer_namestring | null

Activist filer name

filer_name_enstring | null

Activist filer name (English) when available

issuer_security_codestring

Target company securities code

issuer_namestring | null

Target company name

issuer_name_enstring | null

Target company name (English) when available

holding_ratio_pctnumber | null

Current holding ratio (%)

trajectory_typestring

accumulating, stable, exiting, etc.

streak_lengthinteger

Consecutive filings in current direction

velocity_pp_per_monthnumber | null

Acquisition pace (pp/month)

first_filing_datestring | null

First filing date (ISO)

last_filing_datestring | null

Last filing date (ISO)

filing_countinteger

Total filings

escalation_signalsinteger

Number of activist escalation signals

default 0

important_proposalsinteger

Number of important proposal filings

default 0

campaign_intensitystring

Campaign intensity: high, medium, low

default low

Errors

Standard HTTP status codes plus a typed error.code in the { error: { code, message } } envelope.

Every endpoint returns the same typed error envelope ({ error: { code, message } }). For the full list of codes, see the Errors reference.

RequestcURL

curl "https://api.axiora.dev/v1/ownership/activist-campaigns" \
  -H "Authorization: Bearer ax_live_…"

Response · 200

200 OK

{
  "data": [
    {
      "filer_code": null,
      "filer_name": null,
      "filer_name_en": null,
      "issuer_security_code": "…",
      "issuer_name": null,
      "issuer_name_en": null,
      "holding_ratio_pct": 0,
      "trajectory_type": "…"
      // …more fields
    }
  ],
  "meta": {
    "request_id": "req_abc123",
    "total": 1,
    "limit": 50,
    "offset": 0,
    "next_cursor": null,
    "data_as_of": "2026-05-12T03:25:11Z",
    "ontology_version": "2.1.0",
    "as_of": "frz_01HRX9KQ2T8N7P4M"
  }
}

Response · 401

401 UNAUTHORIZED

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "Missing or invalid API key. Pass it as `Authorization: Bearer ax_live_…`."
  }
}