Get institution activity over time
GET
/api/v1/public/intelligence/institution/:cik/activity10 credits / callAPI key required
Summarize an institution's 13F portfolio across recent quarters by CIK. Each period reports holdings count, total value, total shares, and the quarter-over-quarter change in holdings count and total value.
Parameters
Path
SEC Central Index Key (1-10 digits)
Query
Number of trailing quarters to include (default 4, max 12).
Code example
cURL
curl -X GET 'https://api.signal8.ai/api/v1/public/intelligence/institution//activity' \
-H "X-Api-Key: $SIGNAL8_API_KEY"Request URL
fix parameters to runGET
https://api.signal8.ai/api/v1/public/intelligence/institution//activityexample · 200
{
"success": true,
"data": {
"institution": {
"cik": "0000102909",
"name": "VANGUARD GROUP INC"
},
"activity": [
{
"period": "2025-12-30T23:00:00.000Z",
"filedAt": "2026-01-29T09:40:29.000Z",
"formType": "13F-HR",
"holdingsCount": 4329,
"totalValue": 6897676080637,
"totalShares": 62442074612,
"changes": {
"holdingsChange": -15,
"valueChange": 217282055121,
"valueChangePercent": 3.25
}
},
{
"period": "2025-09-29T22:00:00.000Z",
"filedAt": "2025-11-07T09:49:18.000Z",
"formType": "13F-HR",
"holdingsCount": 4344,
"totalValue": 6680394025516,
"totalShares": 61030983671,
"changes": {
"holdingsChange": 70,
"valueChange": 502264451561,
"valueChangePercent": 8.13
}
}
]
}
}