PRODUCT — DATASET

Form 144 API

PROPOSED-SALES

Form 144 notices show insider sales before they happen. Every proposed-sale filing since 2022, parsed into structured JSON and updated daily.

What is Form 144?

Rule 144 governs how affiliates sell restricted or control stock. Before an affiliate sells more than 5,000 shares or $50,000 worth of stock in any three-month period, they must file a notice of proposed sale on Form 144.

The timing is what makes the form valuable. The notice is filed when the sell order is placed, not after the trade settles. You are reading intent, days or weeks before the execution shows up on a Form 4.

Since April 2023 the SEC requires Form 144 to be filed electronically on EDGAR, which is why a clean machine-readable history starts in that window. We parse every notice: filer, relationship to the issuer, shares proposed, approximate value, and the broker expected to handle the sale.

What you get

Source
SEC EDGAR Form 144
History
2022 to present
Updates
Daily
Coverage
All US public companies
Endpoint
GET /proposed-sales

Why teams use it

Intent, not aftermath

Form 4 confirms a sale within two days of execution. Form 144 announces it before the order goes in. For selling-pressure signals, that gap is the whole point.

Sized and valued

Each notice carries the shares proposed and the approximate market value, so a 10,000-share notice and a 2-million-share notice never read as the same event.

The filer's relationship, labeled

Officer, director, or 10% holder: the relationship field tells you whose intent you are reading.

Complete since electronic filing

The SEC moved Form 144 to EDGAR in April 2023. Our history starts with the electronic era, so coverage is systematic rather than sampled.

See it in code

terminal
bash
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://ryxel.io/api/proposed-sales?ticker=TSLA&min_value=1000000"

What teams build with it

Early warning on holdings

A cluster of Form 144 notices in a stock you own is advance notice of supply. You see it before the first share trades.

Intent versus follow-through

Pair proposed sales with executed insider transactions. Insiders file notices they never act on, and the gap between intent and execution is itself a signal.

Lockup and vesting research

Proposed sales cluster around vesting events and lockup expirations. The feed shows the pressure forming.

Risk sizing

Aggregate proposed value by ticker to rank where insider supply is heaviest this week.

Frequently asked questions

Is Form 144 filed before or after the sale?

Before. Rule 144 requires the notice to be filed concurrently with placing the sell order. The sale itself can happen any time within 90 days of the notice.

Who has to file Form 144?

Affiliates of the issuer: officers, directors, large shareholders, and others in a control relationship. The threshold is 5,000 shares or $50,000 in proposed sales over any three-month period.

Does a Form 144 filing mean the sale happened?

No. It means the affiliate intends to sell, and some notices expire without a trade. To confirm execution, check the insider transactions feed for the matching Form 4.

Why does history start in 2022?

Form 144 was paper-filed for decades. The SEC mandated electronic filing on EDGAR in April 2023, and our coverage begins with the electronic record.

How often is the data updated?

Daily. New notices are parsed and added as EDGAR publishes them.

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