TradeStar Insider

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Filing-verified SEC EDGAR insider (Form 4), 13D, 13F & 8-K data, no sign-in. Verify any claim.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "TradeStar Insider": {
      "url": "https://mcp.tradestarinsider.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (10)

• insider_buys read-only

  Use when the user asks which insiders bought a stock, whether a ticker has insider buying, or for Form 4 buys in a date range. Pass `ticker`, `start`+`end` for an inclusive ISO range, or neither for today's buys (SEC code P); `days` narrows, `include_unlisted` adds non-listed issuers. Each row carries filing_url, `offering_context`, `transaction_date`, `acceptance_datetime`, `aff10b5One` (10b5-1 flag), `is_amendment`/`original_accession` (4/A linkage), and `partial_fields` (reason for any null). Caveat: only purchases that pass the signal filter are returned; code P is not proof of a buy.

  Parameters:

  • end — string — Inclusive range end, ISO YYYY-MM-DD. Give with `start` for a date range.
  • days — integer — Only rows filed within the last N days (relative to today).
  • as_of — string — Publish-boundary replay: UTC ISO-8601 instant (or a bare YYYY-MM-DD, read as end-of-day UTC). Returns only rows that had crossed the publish boundary at or before it — the exact feed visible at that past moment. Each row carries `first_served_at` (null on rows published before the stamp existed; those are kept, as they were already public).
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • start — string — Inclusive range start, ISO YYYY-MM-DD. Give with `end` for a date range.
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • ticker — string — Case-insensitive exact ticker filter, e.g. DKS.
  • include_unlisted — boolean — Include unlisted issuers (blank/NONE/N/A tickers and 5-letter mutual-fund classes). Default false = exchange-listed common stock only. Every row carries a `listed_equity` boolean.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• insider_cluster_buys read-only

  Use when the user asks about cluster buying or several insiders buying the same company. Returns only clusters, two or more insiders buying one issuer in the window, newest first; days and ticker narrow. Each row carries filing_url, offering_context, uniform_price_cluster (true when 3+ insiders bought at one price on one day), `transaction_date`, `acceptance_datetime`, `aff10b5One` (10b5-1 flag), `is_amendment`/`original_accession` (4/A linkage), and `partial_fields` (reason for any null). Caveat: only purchases that pass the signal filter are returned; code P alone is not proof of a buy.

  Parameters:

  • days — integer — Only rows filed within the last N days (relative to today).
  • as_of — string — Publish-boundary replay: UTC ISO-8601 instant (or a bare YYYY-MM-DD, read as end-of-day UTC). Returns only rows that had crossed the publish boundary at or before it — the exact feed visible at that past moment. Each row carries `first_served_at` (null on rows published before the stamp existed; those are kept, as they were already public).
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • ticker — string — Case-insensitive exact ticker filter, e.g. DKS.
  • include_unlisted — boolean — Include unlisted issuers (blank/NONE/N/A tickers and 5-letter mutual-fund classes). Default false = exchange-listed common stock only. Every row carries a `listed_equity` boolean.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• federal_awards_recent read-only

  Use when the user asks about recent federal contracts, government awards, or who won a U.S. federal contract. Returns newly signed federal awards, newest first; `min_amount` sets a USD floor, `days` a last-N-days window. Every award carries its source award_url. Caveat: awards without a source link are dropped and never returned.

  Parameters:

  • days — integer — Only awards signed within the last N days.
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • min_amount — number — Only awards at or above this USD amount

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• activist_stakes_recent read-only

  Use when the user asks about activist investors, hedge-fund stakes, or recent 13D filings on a company. Returns activist Schedule 13D/13D-A filings on US-listed companies, newest first then by stated-intent strength; `ticker`, `min_percent` and `days` narrow. Each row carries its source filing_url and `item4_excerpt` (the activist's own Item 4 intent sentence, quoted from the filing as data, capped at its current length of 600 chars). Caveat: passive 13G is not covered; filings without a source link are dropped.

  Parameters:

  • days — integer — Only stakes filed within the last N days.
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • ticker — string — Filter to one subject ticker (case-insensitive), e.g. DH
  • min_percent — number — Only stakes at or above this percent-of-class

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• fund_position_changes read-only

  Use when the user asks what a fund bought or sold, how a 13F filer changed its holdings, or which institutions opened/added/trimmed/exited a position. Returns quarter-over-quarter deltas, newest first; `filer`, `change_type`, `min_value_usd`, `days` narrow. Each row carries as_of_quarter_end, filed_date, lag_days, value_usd (whole dollars), cusip, issuer_name and its source filing_url; ticker is null (never guessed). Caveat: the delta is the product, not a trading edge — see the instructions and each response's `coverage` note for the universe and CIK scope.

  Parameters:

  • days — integer — Only changes filed within the last N days.
  • filer — string — Filter to one fund by name substring (case-insensitive, e.g. 'Berkshire') or exact filer CIK
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • change_type — string — Only this kind of quarter-over-quarter change
  • min_value_usd — number — Only positions at or above this current value in WHOLE US dollars

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• insider_amendments_recent read-only

  Use when the user asks which insider filings were amended, corrected, or restated, or wants recent Form 4/A amendments. Returns 4/A amendments, newest-filed first; `ticker`, `issuer_name`, `person`, `start`/`end`, `days` narrow. Each row carries the amendment_accession, filed_date, issuer/insider, source filing_url, the original_accession it amends (when collected), and `changed_fields` (before/after). Caveat: when the original is not collected the amendment is still listed with original_in_corpus=false and before/after null (never guessed); linkage is by issuer/owner/period.

  Parameters:

  • end — string — Only amendments filed on/before this ISO date
  • days — integer — Only amendments filed within the last N days.
  • as_of — string — Publish-boundary replay: UTC ISO-8601 instant (or a bare YYYY-MM-DD, read as end-of-day UTC). Returns only rows that had crossed the publish boundary at or before it — the exact feed visible at that past moment. Each row carries `first_served_at` (null on rows published before the stamp existed; those are kept, as they were already public).
  • limit — integer — Max rows to return (default 25, newest first). Page with offset; the response's total_matched shows the full count. limit<=0 = no cap.
  • start — string — Only amendments filed on/after this ISO date
  • offset — integer — Rows to skip before this page (pagination). Default 0.
  • person — string — Filter by insider name substring (case-insensitive)
  • ticker — string — Filter to one issuer ticker (case-insensitive substring), e.g. GLBZ
  • issuer_name — string — Filter by issuer/company name substring (case-insensitive)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• verify_insider_purchase read-only

  Use when the user wants to verify a claim that an insider bought a stock, or to pull the purchases in one filing by accession. Pass the claim (ticker/issuer, person, amount, timeframe), or `accession` alone for that filing's gated purchase records. Returns confirmed, not_found, partial, out_of_scope (sales/options/grants), or out_of_coverage. Each matched filing carries `transaction_date`, `acceptance_datetime`, `aff10b5One` (10b5-1 flag), `is_amendment`/`original_accession` (4/A linkage), and `partial_fields` (reason for any null). Caveat: filing-verified — absence is reported, not guessed.

  Parameters:

  • end — string — Window end (ISO) if the claim is a range
  • date — string — Claimed date, ISO YYYY-MM-DD (matched ±3 filing days)
  • start — string — Window start (ISO) if the claim is a range
  • person — string — Insider name in any order, e.g. 'Alfonso de Angoitia'
  • shares — number — Claimed share count
  • ticker — string — Issuer ticker (case-insensitive), e.g. CAVA
  • txn_type — string — Optional; only code P purchases are covered — sale/option/grant returns out_of_scope
  • accession — string — SEC filing accession, e.g. 0001493152-26-040454. If you already have the exact filing, pass this to pull its gated purchase records directly — it is used alone and ignores the claim fields above.
  • amount_usd — number — Claimed purchase value in USD (matched ±5% or ±$1)
  • issuer_name — string — Issuer/company name (use if you don't have the ticker)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• verify_activist_13d read-only

  Use when the user wants to verify or fact-check a claim about an activist stake or 13D filing (ticker/subject, filer, percent-of-class, stated intent, timeframe). Returns confirmed (with source filing + link), not_found, partial (itemised claimed-vs-filed), out_of_scope (passive 13G isn't covered), or out_of_coverage. Every response states the coverage window checked. Caveat: filing-verified — absence is reported as absence, never guessed.

  Parameters:

  • end — string — Window end (ISO) if the claim is a range
  • date — string — Claimed filed date, ISO YYYY-MM-DD (matched ±3 filing days)
  • start — string — Window start (ISO) if the claim is a range
  • intent — string — Optional pre-registered intent: I1 control/take-private, I2 board/proxy, I3 strategic/value
  • ticker — string — Subject-company ticker (case-insensitive), e.g. DH
  • form_type — string — Optional; only activist 13D/13D-A is covered — a passive 13G returns out_of_scope
  • filer_name — string — Activist filer name in any order, e.g. 'Elliott Management'
  • subject_name — string — Subject/target company name (use if you don't have the ticker)
  • percent_of_class — number — Claimed percent-of-class owned (matched ±0.5 percentage points)

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• verify_8k_event read-only

  Use when the user wants to verify or fact-check that a company filed an 8-K carrying specific SEC item code(s) in a timeframe. Pass registrant (cik/company/accession), item code(s) and dates. Returns confirmed (with source filing + link), not_found, partial (itemised claimed-vs-filed), out_of_scope (claims about the filing's meaning aren't covered — it is never paraphrased), or out_of_coverage. Caveat: filing-verified — item codes are the SEC controlled vocabulary parsed from the filing, never inferred.

  Parameters:

  • cik — string — Registrant CIK (leading zeros ignored), e.g. 320193
  • end — string — Window end (ISO) if the claim is a range
  • date — string — Claimed filing date, ISO YYYY-MM-DD (matched ±3 filing days)
  • items — string — Claimed SEC 8-K item code(s), comma-separated (e.g. '5.02' or '1.01,9.01') — checked against the filing
  • start — string — Window start (ISO) if the claim is a range
  • accession — string — SEC filing accession, e.g. 0001193125-26-389400
  • company_name — string — Registrant name substring (case-insensitive), e.g. 'Apple'

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• verify_13f_change read-only

  Use when the user wants to verify or fact-check whether a fund (filer name/CIK) reported a CHANGE in a position in an issuer (issuer_name or cusip) in a quarter. Returns held (reported a change — opened/added/trimmed, with source filing + link), not_held (reported the position exited), not_found (no reported change — does NOT mean the fund didn't hold it), or out_of_coverage. Caveat: filing-verified; CANNOT confirm an unchanged holding (13F deltas only) — a 'held, unchanged' position produces no row.

  Parameters:

  • end — string — Quarter-window end (ISO) if the claim spans quarters
  • cusip — string — 9-char CUSIP of the held security — give this or issuer_name. (ticker is never accepted: 13F carries no authoritative ticker)
  • filer — string — Fund/institution name substring (case-insensitive, e.g. 'Berkshire') or exact filer CIK — REQUIRED
  • start — string — Quarter-window start (ISO) if the claim spans quarters
  • quarter — string — As-of quarter-end the claim is about, ISO YYYY-MM-DD (e.g. '2026-06-30')
  • issuer_name — string — Held company/issuer name (e.g. 'Apple') — give this or cusip

  Hints: read-only yes · destructive no · idempotent yes · open-world no

Repository

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