Crypto Custody SEC Filings (SEC EDGAR)
Monthly SEC filings mentioning 'crypto custody' — the regulated infrastructure layer enabling institutional flows. Coverage starts April 2021 (term ingestion start date).
What is it?
Custody is the regulated infrastructure that lets institutions hold crypto. Without qualified custodians (Coinbase Custody, BitGo Trust, Fidelity Digital Assets, BNY Mellon Custody), institutional capital cannot legally enter crypto. This filings count traces the maturation of this critical institutional layer.
How to read
Single line, log scale. Steady multi-year growth = healthy institutional infrastructure maturation. Spikes typically correlate with major custodian launches + regulatory clarifications (SAB 121 reversal April 2024).
Key zones
Pre-2018 : <10/month. 2018-2020 (Coinbase Custody launch, Fidelity Digital Assets) : 20-100/month. 2021-2023 (BNY Mellon, Anchorage qualified custodian status) : 100-500/month. 2024+ (SAB 121 reversal) : sustained 300-800/month.
What to observe
Custody filings leading bitcoin filings by 6 months = infrastructure-first institutional setup phase. Custody flat while Bitcoin filings rise = late-stage institutional cycle. Custody collapsing = regulatory crackdown.
Historical context
Coinbase Custody launch 2018. Fidelity Digital Assets 2018. BNY Mellon enters crypto custody 2022. SAB 121 (accounting rule restricting bank custody) imposed 2022, reversed April 2024 — triggering a sustained step-change in filings.
Expert notes
Crypto custody is the silent enabler of every other institutional flow — ETFs, treasury, stablecoin reserves. Pre-2024 SAB 121 was the single largest regulatory obstacle to bank-led crypto custody. Its reversal is the most important institutional-narrative event of 2024, arguably bigger than spot ETF approval (which depends on qualified custody).
Common mistakes to avoid
Custody filings = AUM in custody ❌. Filings measure regulatory attention, not assets under custody. Coinbase Custody AUM data is in their 10-Q quarterly reports (not in this filings count).
Programmatic access
REST API
curl -sS \
'https://api.trinityinsights.io/api/v1/narrative-intelligence/narrative-sec-custody-filings/history?days=90' \
-H 'X-API-Key: $TRINITY_API_KEY'MCP server
{
"tool": "get_chart_value",
"metric_id": "narrative-sec-custody-filings",
"timeframe": "1y"
}Required tier: pro. See the pricing grid for the tier list and the MCP documentation for multi-client configuration.
Related metrics
Institutional disclaimer
Trinity Insights is an educational and analytical tool. The metric above does not constitute investment advice. Trinity Insights is not a Crypto-Asset Service Provider (CASP) registered under MiCA Regulation (EU) 2023/1114. See the full disclaimer.