Data published by 409A Cost
2 datasets, each derived from named sources' own pages and re-read on a cadence, latest 2026-11-11.
| Dataset | Headline figure | Sources | Read |
|---|---|---|---|
| 409A Price Index | 1,499.5 USD | 9 of 44 read | 2026-11-11 |
| 409A Safe Harbor Rules | 30 to 90 day | 5 of 15 read | 2026-11-09 |
How these are made
Every dataset starts as a charter that names the buyer's question and the sources by URL. Our fetch service reads each source's own page, and the sentence carrying the figure is kept exactly as printed, with the page and the day it was read.
A reviewer accepts or refuses every candidate sentence with the reason recorded, and the derivation is computed over one figure per source, or one for each breakdown a source prices. A source read in full that publishes nothing is counted as not published, never filled in. Each dataset is re-read on its cadence, so the next read reports what moved.
409A Price Index
The median published figure in the 409A Price Index is 1,499.50 USD across 8 sources' own pages (range 499 to 1,800 USD; 9 sources publish a figure, some priced per year), read 11 November 2026.
9 of the 44 named sources read in full publish a figure; 35 publish none, read 11 November 2026.
Download the CSV (9 rows) · JSON · Markdown
409A Safe Harbor Rules
The 409A Safe Harbor Rules carries 8 published figures read from 5 sources' own pages, from 30 to 90 day, read 8 November 2026.
5 of the 15 named sources read in full publish a figure; 10 publish none, read 8 November 2026.
Download the CSV (11 rows) · JSON · Markdown