# SEC Insider Activity – Form 4 Insider Buying & Selling

> SEC Insider Activity – Form 4 Insider Buying & Selling is a paid API for AI agents from company-enrichment.x402tookit.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-29).

Returns open-market insider buy/sell activity for a US public company from its recent Form 4 filings, including trade clusters, buyer counts, and a verdict on insider sentiment.

## Facts

- Endpoint: GET https://company-enrichment.x402tookit.com/sec-insider-activity?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-insider-activity-form-4-insider-buying-selling-c0c50eee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iKShYxq7f8tbjvPDNO3f-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sec-insider-activity-form-4-insider-buying-selling-c0c50eee
```

Example prompt: Pull the insider buying and selling activity for NVDA from its Form 4 filings over the last 60 days — I want to see open-market trades, whether there's a cluster of buyers, and what the overall insider sentiment verdict is.

## When to prefer this

Choose this endpoint when you need a structured, pre-analyzed view of insider buying and selling signals from Form 4 filings — especially when you want open-market trade separation, 10b5-1 plan detection, cluster signals, and a ready-made verdict rather than parsing raw SEC EDGAR filings yourself. Prefer this over a general SEC filings endpoint when the specific question is about insider sentiment or executive conviction.

## Known failure modes

- Unknown ticker or CIK returns null or empty company field
- No Form 4 filings found in the lookback window returns zero trades and a degraded flag
- Invalid 'days' parameter outside 7–180 range may return an error or be clamped
- Company with very sparse SEC filings may return degraded: true with limited data
- Rate-limit or payment failure returns a 402 response requiring payment

## How this service works

Insider buying vs selling for a US company from its latest Form 4 filings: open-market buys, sells, clusters.

## Output

Returns a structured object including: company name, CIK, total open-market buys and sells in USD, a list of recent trades with owner, role, date, price, share count, USD value, and whether the trade was a 10b5-1 plan; distinct buyer count; number of Form 4 filings read; planned-sale share percentage; cluster thresholds; a human-readable summary; a verdict on insider sentiment; and any reasons or caveats behind the verdict.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "Ticker or CIK"
      },
      "days": {
       "type": "integer",
       "description": "Lookback days, 7 to 180, default 90"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "cik": {
       "type": [
        "null",
        "string"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "company": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "thresholds": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "clusterBuyers": {
         "type": [
          "null",
          "number"
         ]
        },
        "mostlyPlannedAtSharePct": {
         "type": [
          "null",
          "number"
         ]
        }
       }
      },
      "windowDays": {
       "type": [
        "null",
        "number"
       ]
      },
      "filingsRead": {
       "type": [
        "null",
        "number"
       ]
  
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-insider-activity-form-4-insider-buying-selling-c0c50eee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from company-enrichment.x402tookit.com](https://www.zero.xyz/host/company-enrichment.x402tookit.com/llms.txt)