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US · UK · EU & Nordics · Singapore — 10 live markets

The signal layer for insider activity.

Inseyeders turns every insider, institutional and activist filing — across US, UK, European and Singapore registries — into clean, structured signals, delivered over a REST API, an MCP server, or a dashboard your whole desk can read.

Get started Read the docs
$curl https://api.inseyeders.com/v1/signals?type=CLUSTER_BUY
Live signals
api · firehose
RIVN
CLUSTER BUYUS
4 insiders · $3.8M
SHEL
PDMR DEALINGGB
£1.6M buy
NVDA
SMART MONEY BUYUS
+1.2M sh · new
VOLV-B
PDMR DEALINGSE
SEK 9.1M buy
NOVO-B
OWNERSHIP CROSSINGDK
crossed 5%
TSLA
FORM144 FILEDUS
120k sh notice
10live markets
29K+issuers covered
8.6M+insider filings
18signal types
Signals

Eighteen ways the smart money tips its hand.

Every filing is normalized, deduped against amendments, and evaluated against a library of signals. You subscribe to the ones that matter and get a clean event — not a PDF.

Insider tradesForm 3 & 4 · EU PDMR
CLUSTER BUYThree or more insiders buy the same issuer inside a 30-day window.
CEO BUYA CEO or CFO opens-markets purchase — the highest-conviction print.
LARGE PURCHASEA single open-market buy above your dollar or %-of-float threshold.
CLUSTER SELLCoordinated selling across multiple officers and directors.
UNUSUAL VOLUMEInsider transaction volume spikes vs. the issuer's trailing baseline.
NEW INSIDER DESIGNATEDA newly registered officer or director first appears in the filings.
Proposed salesForm 144 · US only
FORM144 FILEDIntent-to-sell filed — restricted stock heading to market.
FORM144 OVERSHOTActual Form 4 sales exceed the amount noticed on the 144.
FORM144 CANCELLEDA previously-noticed sale lapses or is withdrawn.
Institutional flows13F · major-holding filings
INSTITUTIONAL ACCUMULATIONA manager materially grows a position quarter over quarter.
SMART MONEY BUYFunds on your tracked smart-money list initiate or add.
INSTITUTIONAL DIVESTMENTA holder trims or fully exits a reported position.
Activist moves13D/G · Transparency Directive
ACTIVIST POSITION OPENEDA new activist stake is disclosed with intent.
BENEFICIAL OWNERSHIP CROSSINGA holder crosses a regulatory ownership-disclosure threshold.
Cross-filing intelligenceDerived across regimes
INSIDER INSTITUTION DIVERGENCEInsiders and institutions move in opposite directions on the same name — the tell.
Coverage

Every market keeps its own paper trail. We read all of them.

Disclosure rules differ by jurisdiction — a US Form 144 has no European analogue, and an EU PDMR notification has no US one. Inseyeders normalizes each regime into one signal model and tells you, per signal, exactly where it's available.

Sourced from official and primary registries — normalized into one schema.
SEC EDGARFCA / NSMFinansinspektionenFinanstilsynetFIN-FSABaFinAMFAFMSGXNasdaq Nordic
Live in 10 markets+5 planned
USGBNOFISENLDKDEPLBEFRCHESITSG
Full coverage Core signals Planned
Signal family
US
GB
SE
NO
DK
FI
DE
FR
NL
SG
Insider tradesForm 3 & 4 · MAR Art. 19 PDMR
Proposed salesForm 144 — no EU analogue
Institutional flowsForm 13F · major-holding filings
Ownership & activistsSch. 13D/G · Transparency Directive
Cross-filing intelDerived across regimes
Full Partial Not availablePer-signal availability in the API reference →
One source of truth

Four filing universes, one clean data model.

Insider transactions

Open-market buys, sells and option exercises by officers and directors — across US Form 3 & 4 and EU/Nordic PDMR disclosures — normalized and deduped against amendments.

Open transactions Institutional holdings

Where the large managers are positioned — US 13F holdings and European major-shareholding notifications — with period-over-period deltas, concentration and a smart-money watchlist.

Browse institutions Activist & ownership

Disclosed stakes, stated intent and ownership-threshold crossings — US Schedule 13D/G and EU Transparency Directive filings — with the full amendment timeline.

Track activists Proposed sales

Insiders signalling intent to sell before they trade — a US-specific notice (Form 144) — with an alert when the actual sales overshoot what was filed.

See proposed sales
Developers

Built API-first. The dashboard is just one client.

The same normalized data powers the REST API, the MCP server, and the GUI. Wire signals into your models, your terminal, or your LLM — one schema across every market.

REST + JSON

Cursor-paginated, idempotent, versioned. Clean JSON — no filings to parse yourself.

MCP server

Connect Claude, Cursor or any MCP client to the hosted server and query filings in plain language.

Alerts & webhooks

Subscribe to signal types and get an event when they fire — over webhook, email, Slack or Discord.

v1
# Query the latest signals
curl https://api.inseyeders.com/v1/signals \
  -H "Authorization: Bearer sk_live_•••" \
  -d "type=CLUSTER_BUY,CEO_BUY" -d "sector=tech"

{
  "signal": "CEO_BUY",
  "ticker": "DIS",
  "insider": "Robert A. Iger",
  "role": "CEO",
  "value_usd": 2113400,
  "filed_at": "2026-05-28T13:41:09Z",
  "source": "form4/0001…"
}
// Add the hosted Inseyeders MCP server to any client
{ "mcpServers": {
  "inseyeders": {
    "url": "https://mcp.inseyeders.com",
    "headers": { "Authorization": "Bearer sk_live_•••" }
  }
}}

// then just ask:
"Any cluster buys in semis this week,
 and who has been selling against them?"
// We POST to your endpoint when a signal fires
{
  "event": "signal.fired",
  "signal": "ACTIVIST_POSITION_OPENED",
  "ticker": "PYPL",
  "filer": "Elliott Investment Mgmt",
  "form": "SC 13D",
  "pct_outstanding": 6.1,
  "delivered_at": "2026-05-28T13:55:02Z"
}
Pricing

Pricing coming soon.

We're in active build-out — expanding market coverage and backfilling history. Plans and pricing will be announced soon. In the meantime, create an account to explore the REST API, MCP server and dashboard while we're in preview.

Create an account

Read the filings everyone else skims.

Free to start. No card. An API key in under a minute.

Get started Read the docs