What is a proposed-sale signal (Form 144)?
A proposed-sale signal is a scored event derived from an SEC Form 144 — the notice an insider files to signal intent to sell restricted or control stock. It flags upcoming insider selling before it necessarily shows up as a completed Form 4.
A proposed insider sale leans mildly bearish and is weighted by the aggregate market value of the shares the insider intends to sell. It is a lighter signal than a completed cluster of sales, because a Form 144 is an intent, not a guaranteed transaction.
Intent, not execution
Form 144 is a notice of proposed sale under Rule 144 — the insider is telling the market they may sell up to a stated number of restricted shares. The sale may happen in full, in part, or not at all, so QuantConomy treats it as a forward-looking flag rather than a confirmed event.
Why it still matters
A large proposed sale, especially clustered with completed Form 4 sales or other bearish filings, adds to a picture of insiders reducing exposure. On its own it is modest; alongside other signals it strengthens a confluence read.
Recent examples
Live proposed-sale signals from the platform, newest first. Each links to the company.
| Asset | Direction | Strength | What happened | When |
|---|---|---|---|---|
| PL Planet Labs PBC | bearish | 52 | WILLIAM MARSHALL filed Form 144 to sell PL shares ($5.44M) - 200,000 shares - expected around 7/10/2026 - [moderate bearish signal - supply pressure] | 2026-07-10 |
| PL Planet Labs PBC | slightly bearish | 30 | ULYSSES TRUST 02021.1 U/A DTD 02/26/2021 filed Form 144 to sell PL shares ($2.44M) - 89,593 shares - expected around 7/10/2026 - [very weak slightly bearish signal - supply pressure] | 2026-07-10 |
| GRAB Grab Holdings Ltd | slightly bearish | 49 | ANTHONY PING YEOW TAN filed Form 144 to sell GRAB shares ($4.66M) - 1,200,000 shares - expected around 7/10/2026 - [weak slightly bearish signal - supply pressure] | 2026-07-10 |
| PSTG Pure Storage, Inc. | very bearish | 58 | Cluster of 3 Form 144 filings for PSTG - total $9.56M proposed sales - 50,000 shares - expected around 7/10/2026 - [moderate very bearish signal - supply pressure] | 2026-07-10 |
| PSTG Pure Storage, Inc. | very bearish | 55 | Cluster of 3 Form 144 filings for PSTG - total $5.51M proposed sales - 50,000 shares - expected around 7/10/2026 - [moderate very bearish signal - supply pressure] | 2026-07-10 |
| ETSY ETSY INC | slightly bearish | 35 | Silverman Josh filed Form 144 to sell ETSY shares ($3.09M) - 39,161 shares - expected around 7/10/2026 - [weak slightly bearish signal - supply pressure] | 2026-07-10 |
See these in context in the daily market digest . Market context, not advice.
Frequently asked
- Does a Form 144 mean the insider definitely sold?
- No. It only signals intent to sell restricted stock. The actual sale is confirmed later on Form 4 if and when it executes.
- How is this different from a Form 4?
- Form 144 is filed before a proposed sale of restricted or control shares; Form 4 is filed after a completed transaction. The 144 is the earlier, softer signal.
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