Form D Accumulator

Accumulates daily SEC Form D records into a queryable dataset. Public data, official feed, no scraping.

Three rules, each of which exists because skipping it produces a dataset that is subtly wrong in a way a buyer discovers only after trusting it.

TEST filings never enter, because EDGAR accepts dry-run submissions that look identical to real ones. An amendment REPLACES its predecessor for the same offering rather than adding a new one, since counting rows without collapsing amendments inflates offering counts and double-counts raised amounts. And accumulation is append-only from the daily feed, so the history is real rather than a snapshot claiming to be one.

The backfill run: 22,227 filings, 20,405 offerings, zero failures.

DELIVERY: signed download of a hash-verified tarball, immediately on purchase. Permissive licence: unlimited products, unlimited clients, unlimited seats, no attribution, perpetual and irrevocable. One restriction, do not republish the source as source.

Interface

What you call, and what comes back. Types and signatures only — the implementation ships with the source.

  export function emptyState(): AccumulatorState;
  export function serializeState(s: AccumulatorState): string;
  export function deserializeState(json: string): AccumulatorState;
  export function accessionOrder(a: string): [number, number];
  export function ingest(state: AccumulatorState, rec: FormDRecord): AccumulatorState;
  export function summarize(state: AccumulatorState): DatasetSummary;
  export function parseOfferingAmount(raw: string | null): OfferingAmount | null;
  export function parseDollars(raw: string | null): number | null;
  export function parseFormD(xml: string, accessionNumber: string): FormDRecord;