Get institution 13F position changes
GET
/api/v1/public/intelligence/institution/:cik/position-changes10 credits / callAPI key required
Diff the two most recent quarterly 13F snapshots for an institution by CIK. Returns per-position changes — new, increased, decreased, exited — sorted by absolute percentage change so the biggest moves surface first. Needs at least two 13F filings; otherwise returns an empty changes array.
Parameters
Path
SEC Central Index Key (1-10 digits)
Query
Max position changes to return (default 50, max 500).
Number of results to skip (default 0)
Code example
cURL
curl -X GET 'https://api.signal8.ai/api/v1/public/intelligence/institution//position-changes?limit=10&offset=0' \
-H "X-Api-Key: $SIGNAL8_API_KEY"Request URL
fix parameters to runGET
https://api.signal8.ai/api/v1/public/intelligence/institution//position-changes?limit=10&offset=0example · 200
{
"data": {
"institution": {
"cik": "102909",
"name": "VANGUARD GROUP INC"
},
"currentPeriod": "2025-12-31",
"previousPeriod": "2025-09-30",
"changes": [
{
"ticker": "ABP",
"issuerName": "ABPRO HLDGS INC",
"cusip": "000847202",
"action": "new",
"currentShares": 20084,
"previousShares": null,
"changeShares": 20084,
"changePercent": null,
"currentValueUsd": 84956,
"previousValueUsd": null
},
{
"ticker": "ACET",
"issuerName": "ADICET BIO INC",
"cusip": "007002207",
"action": "new",
"currentShares": 291277,
"previousShares": null,
"changeShares": 291277,
"changePercent": null,
"currentValueUsd": 2452552,
"previousValueUsd": null
}
],
"pagination": {
"limit": 50,
"offset": 0,
"total": 4205
}
}
}