knowable

US government financial disclosures as a point-in-time dataset: congressional trades, SEC Form 4 insider transactions, and 13F fund holdings. Every row carries the instant it actually became public and a measured coverage denominator.

36,941,679 rows. 650 Parquet partitions. 1.041 GB zstd. Release 2026-08-02.

Immutable: corrections ship as a new release naming this one in supersedes, never as a rewrite of these bytes.

Access

from datasets import load_dataset

trades = load_dataset("jwlutz/knowable", "congress_trades", split="train")

Query without downloading everything, which is what you want at 34M rows:

import duckdb

duckdb.sql("""
    SELECT filer_name, ticker, side, amount_range_low, published_at
    FROM 'hf://datasets/jwlutz/knowable/releases/2026-08-02/congress_trades/*.parquet'
    WHERE ticker = 'NVDA' AND published_at <= '2026-01-01'
    ORDER BY published_at DESC
""")

Configs: congress_trades, house_filings, senate_filings, fund_holdings, insider_transactions, coverage.

Point-in-time queries

This is the reason to use this dataset rather than a scraped one. published_at is when the filing became readable: not when the trade happened, not when we fetched it. Filtering on it reconstructs what was knowable at a past instant.

-- exactly what a reader could have known on 2024-06-30, nothing later
SELECT * FROM congress_trades WHERE published_at <= TIMESTAMP '2024-06-30 23:59:59'

Do not use transaction_date for this. The median trade is disclosed 28 days after it happens and 18.7% take longer than the statutory 45 days, so transaction_date <= T silently includes filings nobody could read at T.

Candella SDK

from candella import knowable

trades = knowable.congress_trades(since="2026-01-01", ticker="NVDA")

The SDK wraps the HTTP contract below, so an SDK query and a direct API query return identical rows.

The read API is live at https://knowable-api-production.up.railway.app. It serves the verified release through one sealed read-only DuckDB connection. The unversioned Congress route also carries a small MIT-licensed Kadoa current tail; dated release routes remain immutable. Contract:

GET /v1/{resource}?cursor=&limit=&as_of=
    -> {"data": [...], "next_cursor": str|null,
        "resume_cursor": str|null, "as_of": timestamp}

resources: congress/trades, house/filings, senate/filings,
           sec/form4, sec/holdings, coverage

as_of applies the point-in-time bound server-side. Persist resume_cursor after every non-empty page so a caught-up client does not re-download the same short tail. The token is opaque and versioned.

What it covers

table	rows	one row is
fund_holdings	34,030,485	one 13F position line
insider_transactions	2,795,273	one Form 4 transaction line, all codes
congress_trades	72,140	one disclosed trade (House 55,796, Senate 16,344)
house_filings	41,380	one House filing with its publication clock
senate_filings	2,394	one Senate eFD document with its clock
coverage	7	one source-period with its measured denominator

Congressional transactions span 2012 to present; House publication clocks reach back to 2008-03-26. The SEC lanes cover 2024-01 through 2026-07, and every statistic you compute from them inherits that boundary.

Coverage, against each source's own denominator

This table ships inside the release as coverage, so incompleteness is queryable rather than a claim in a README.

source	captured	expected	coverage	known gap
sec_form4	462,659	464,209	99.7%	1,550
sec_13f_hr	86,123	86,124	100.0%	1
house_clerk	41,380	41,454	99.8%	74
senate_efd (documents)	2,394	2,394	100.0%	217
senate_efd_ptr (transcribed)	1,791	2,394	74.8%	603
house_clerk_ptr (our parse)	5,407	8,306	65.1%	2,899
house_clerk_ptr_congresskit (fill)	372	2,899	12.8%	2,527

Read the two House PTR rows together: 5,779 of 8,306 documents, 69.6%. That is the weakest number here and it is not averaged away. The missing 2,527 are 2,437 paper filings that exist only as scanned images plus 90 e-filed documents no public archive holds. Denominators come from the publisher's own index, never from our own output.

Two scope caveats that change how a number reads:

• senate_efd expected counts elected filers only. The all-filer Senate PTR total is 11,830, so 1,791 transcribed is 74.8% of elected-filer PTRs but 15.1% of all Senate PTRs.
• The 217 gap on senate_efd is a floor. Third-party mirrors hold 217 elected-filer documents that eFD's six-year retention dropped from its index, so the historical denominator is strictly larger than 2,394 and its true size is unmeasured.

Speed and reliability

Publication clock precision

precision	share of congress_trades	meaning
exact	88.4% (63,803)	a real second, from the publisher
date_only	11.6% (8,337)	the source gave a date and no time

house_filings is 100% exact, back to 2008. The vocabulary is exactly three values, exact / first_seen / date_only, and a row is never promoted to a precision its source does not support. Midnight is not a time we observed, so a date_only row says so rather than presenting 00:00:00 as an instant.

House clocks come from the clerk's own HTTP Last-Modified header. Senate exact clocks come from bisecting eFD's submitted_end_date bound, which accepts one-second granularity and so reads back the publisher's stored second. eFD states no timezone: America/New_York is inferred from the filing-hour distribution and corroborated against an independent 2020 scrape on 969 of 969 documents. That inference travels in extraction_notes on every row it affects.

Disclosure latency

Transaction date to publication instant, over 72,135 congressional trades:

p50	p75	p90	p99	within statutory 45 days
28 days	40 days	204 days	819 days	81.3%

Newest filing in this release published 2026-07-29.

Integrity

• Every partition carries a sha256 in the manifest, verified at publish time by reading hashes back from the Hub rather than trusting the upload succeeded.
• Releases are immutable; partitions are never rewritten.
• The build refuses rather than warns. A dangling foreign key, an unregistered parser version, a duplicate primary key, or a provider absent from the redistribution allowlist each abort the build before anything is written.
• 17 data expectations run over the real corpus on every build.

Source errors are carried, not silently repaired

79 of 72,140 rows (0.110%) carry a transaction_date after their own publication instant, which is physically impossible. They are filer typos: years written as 3031, 2202, 2220. They ship as filed. Normalization reads the source's vocabulary; it does not repair the source. Filter transaction_date <= published_at if you need them gone.

Exclusions are handled the same way. 24,196 rows extracted by OCR from scanned paper filings are deliberately absent from this release because their field accuracy has not been human-adjudicated.

Licence and citation

Code is Apache-2.0. The data carries no licence, because it is not ours to license. These are US government records and facts are not copyrightable (Feist v. Rural Telephone). We assert no copyright and grant none. See LICENSE for the full statement and ATTRIBUTION.md for upstream credits.

A statutory restriction binds you regardless of anything we say. 5 U.S.C. 13107(c)(1) prohibits obtaining or using these reports for any unlawful purpose, for commercial credit rating, for solicitation, or to determine or establish credit rating. That is federal law, channel-independent, and not ours to waive.

@misc{knowable2026,
  title  = {knowable: US government financial disclosures with a publication clock},
  author = {Lutz, Jack},
  year   = {2026},
  note   = {Release 2026-08-02},
  url    = {https://huggingface.co/datasets/jwlutz/knowable}
}