InsiderBeacon vs Quiver Quantitative
Quiver Quantitative is a broad alternative-data site best known for Congress trades, with backtests, contracts and lobbying data. InsiderBeacon covers less ground and goes deeper on timing. Here is the overlap and the difference.
The InsiderBeacon team · October 26, 2026
A disclosure first. We make InsiderBeacon, one of the tools below. We have tried to describe every tool fairly, including where the others do more than we do, and to show each price as its maker lists it. Prices are as the vendors listed them in October 2026; check their pages before you buy.
In short
Quiver covers a dozen alternative datasets with backtests, and its Congress pages are the best known. InsiderBeacon covers five things and reads each filing the minute it lands, including the Form 144 notice that comes before the sale. Breadth on one side, timing on the other.
Side by side
| InsiderBeacon | Quiver Quantitative | |
|---|---|---|
| Price | Free during early access (every Pro feature, no card); then a Free plan with filings 24 hours behind, and Pro at $29 a month ($14 for early members) | Free; Premium $25 a month or $300 a year; API from $30 a month |
| How you find out | Alerts within about a minute of the SEC accepting a filing; the median time is on the status page | Email and app push; much of the data updates daily, as it describes it |
| Planned sales (Form 144) | The Form 144 notice the minute it's accepted, typically 34 hours before the sale is reported | Insider dataset is Form 4 based, as it describes it |
| Interpretation | Every buy scored out of 100 by a published formula; cluster buys flagged; plan sales and option exercises labelled | Backtests and strategy pages across its datasets; no per-buy insider score |
| Alert channels | Phone push, Telegram, Discord, email and webhooks; a minimum size, a daily cap and quiet hours | Email, app push |
| Congress | Every trade with how late it was filed, moves since it was reported, and a copy-the-member replay against the S&P | Congress trades with member pages, copy-the-member strategies and backtests |
| Other data | Insiders, planned sales, big stakes (13D/13G), Congress, the White House, 50+ funds' 13Fs, federal contracts of $10M+, top Hyperliquid traders | Government contracts, lobbying, patents, app ratings, Wikipedia views and more |
| API | API keys, webhooks and a Discord bot on every plan; the head-start study and the pulse are open endpoints | Paid API plans |
Each tool is described from its own site as of October 26, 2026; the quotes under "what people say" are about this kind of tool in general, not about any one of them. Prices are as the vendors listed them in October 2026; check their pages before you buy. We make InsiderBeacon.
Where Quiver Quantitative does more
Quiver's range is far wider: government contracts, lobbying, patents, corporate flights, app ratings and a dozen other datasets, each with backtests, and its Congress pages are the ones most people have seen. If you want one site for alternative data, that is Quiver. InsiderBeacon covers insiders, planned sales, big stakes, Congress, the White House, big funds' 13Fs, federal contracts and the top crypto traders, and spends its effort on reading each filing the minute it lands and telling you.
What people say about this kind of tool, and what we did about it
“By the time you find out, the move has already happened.”
You hear about a sale before it's reported.
The insider's notice, the minute the SEC accepts it, typically 34 hours before the sale is on the record. Buys about a minute after the filing lands. Congress reports minutes after they're posted, with how late each one was.
“Massive amounts of noise. I quit after a week.”
A score, a minimum, a daily limit, quiet hours.
Every buy is scored out of 100 from what the filing says. Set a minimum size, bundle the small ones, cap the day, sleep at night. The first word of every alert says what it is: Buy, Sell, Long, Short.
“It doesn't tell you whether it's a buy or a sell.”
It says so before anything else.
Buy or Sell, Long or Short, in the title of the alert, on the card, on the share image. Insider sales say what share of their stake went, and whether it was a scheduled plan.
“There's no API. I had to scrape it.”
An API, webhooks and a Discord bot, free.
Keys, webhooks, embeds and the Discord bot are on the Developers page in the app. The head-start study and the public pulse are open endpoints anyone can read.
“My notifications stopped and every setting looked on.”
It tells you when a channel stops working.
The Alerts screen shows when each channel last delivered and whether it's failing, with a test button beside it. If every channel you use fails for three days, you get an email saying so.
The one claim we measure
The head start is not a slogan. Every Form 144 notice is matched to the Form 4 that reported the sale and the gap between the SEC's two acceptance times is kept, pair by pair, both filings linked. The median, the share that arrived first and every pair are on the study page, live, and the numbers for your own stocks are a paste away on the portfolio check.
Which should you use?
- You want many alternative datasets with backtests in one place: Quiver Quantitative.
- You want the filing the minute it lands, including the planned-sale notice: InsiderBeacon.
- You mainly follow Congress: either; Quiver for breadth and history, InsiderBeacon for speed and the lag on each trade.
Questions
Does Quiver have the Form 144 head start?
Its insider dataset is described as built on Form 4 filings, which report a sale after the fact. The Form 144 notice lands first; the head start is the measured gap between the two, and it is only available if the notice itself is read.
Both have a copy-the-member strategy; what's the difference?
Quiver's strategies and backtests span many datasets and go back years. InsiderBeacon's replay is one thing: $1,000 into each reported stock buy by a member from the day it was reported, out on the reported sale, against the S&P, with the lag of each filing shown. It is a check on whether copying a member after the fact would have paid, not a backtest library.
Can I follow a member of Congress in InsiderBeacon?
Yes. Follow any member and each new filing is an alert with the trade, the asset (stocks and options labelled), how late it was filed and what the stock has done since it was reported.
For information only, from public SEC and congressional filings. Not investment advice. Disclaimer