The filing underscores Circle's reliance on BlackRock Advisors, LLC to manage the Circle Reserve Fund, a cornerstone of its stablecoin infrastructure.
Filing excerpt
...to provide the separate audited financial statements of the Circle Reserve Fund (the “Fund”), a money market fund managed by BlackRock Advisors, LLC, as required by Rule 3-09 of Regulation S-X under the Securities Exchange Act of 1934...
What this signalsFilings often name leadership changes, deals and spending plans.
Vendors
Vendors named
sec-10ksupplierConcentrationGet every 10-K signal for Circle and the companies you sell to, in the tools you already use.
Connect Autobound to Claude, Claude Code or Cursor with MCP. Then ask: “What changed at Circle this week?”
The Signal API returns 10-K signals for any list of companies as JSON, for your CRM, warehouse or app.
Sign up and spend your free credits on the companies you sell to.
This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.
Company
linkedin_urlValue in the APIindustriesValue in the APIemployee_count_lowValue in the APIemployee_count_highValue in the APIrevenueValue in the APIdescriptionValue in the APISignal
signal_nameValue in the APIassociationValue in the APIGET /v1/signals/ac2aba34-3aed-43e5-b1ec-2f2f484d555c returns this record as JSON. POST /v1/companies/enrich returns every signal for circle.com.
{
"signal_id": "ac2aba34-3aed-43e5-b1ec-2f2f484d555c",
"signal_type": "sec-10k",
"signal_subtype": "supplierConcentration",
"detected_at": "2026-07-14T07:04:22.987+00:00",
"company": {
"name": "Circle",
"domain": "circle.com"
},
"data": {
"detail": "The filing underscores Circle's reliance on BlackRock Advisors, LLC to manage the Circle Reserve Fund, a cornerstone of its stablecoin infrastructure. This concentration on a single vendor for a mission-critical function presents a significant supply chain dependency and potential risk.",
"metrics": {
"timeframe": "current_year"
},
"summary": "Circle highlights critical operational dependency on BlackRock for reserve fund management",
"excerpts": "...to provide the separate audited financial statements of the Circle Reserve Fund (the “Fund”), a money market fund managed by BlackRock Advisors, LLC, as required by Rule 3-09 of Regulation S-X under the Securities Exchange Act of 1934...",
"relevance": 0.8,
"sentiment": "neutral",
"confidence": "high",
"source_url": "https://www.sec.gov/Archives/edgar/data/1876042/000187604226000228/crcl-20251231.htm",
"filing_date": "2026-07-13",
"filing_year": 2026,
"fiscal_year_end": "12/31",
"sales_relevance": "Risk management needed",
"signal_category": "market",
"vendors_mentioned": [
"BlackRock Advisors, LLC"
]
}
}
curl https://signals.autobound.ai/v1/signals/ac2aba34-3aed-43e5-b1ec-2f2f484d555c \
-H "X-API-KEY: $AUTOBOUND_API_KEY"curl -X POST https://signals.autobound.ai/v1/companies/enrich \
-H "X-API-KEY: $AUTOBOUND_API_KEY" \
-H "Content-Type: application/json" \
-d '{"domain":"circle.com","limit":20}'Long text fields are shortened on this page.
Looking up one signal by its id is free. Enrich costs 2 credits per signal returned; a call with no results is free.