OpenInsider alternatives: 5 ownership and insider data sites like OpenInsider, ranked by attention
OpenInsider is a free screener of insider trades reported to the SEC on Form 4. Measured by the attention it draws — links from the rest of the web, Wikipedia readership and Hacker News mentions — it ranks #28 of the 30 stock research sites tracked here, and #5 of 6 for ownership and insider data. The 5 other ownership and insider data sites follow, in the same order.
Alternatives to OpenInsider, most attention first
All 6 ownership and insider data sites we track · # is the rank within the category · “Overall” is the rank among all 30 sites · index is 0–100
| # | Site | Index | Overall | Linking subnets | Wikipedia, 30 d | HN, 12 mo |
|---|---|---|---|---|---|---|
| 1 | Quiver Quantitative quiverquant.com | 37.4 | 19 / 30 | 1,574 | — | 15 |
| 2 | Unusual Whales unusualwhales.com | 29.3 | 23 / 30 | 804 | — | 9 |
| 3 | Fintel fintel.io | 27.6 | 24 / 30 | 1,859 | — | 2 |
| 4 | WhaleWisdom whalewisdom.com | 21.3 | 25 / 30 | 1,011 | — | 1 |
| 5 | OpenInsider this page openinsider.com | 15.5 | 28 / 30 | 350 | — | 1 |
| 6 | Dataroma dataroma.com | 12.6 | 30 / 30 | 502 | — | 0 |
Quiver Quantitative scores 37.4 on the index against 15.5 for OpenInsider, and has 1,574 linking subnets against 350. It ranks #19 of 30 overall; OpenInsider ranks #28.
OpenInsider vs WhaleWisdom
OpenInsider (#28, index 15.5) against WhaleWisdom (#25, index 21.3). Links: 350 subnets point at openinsider.com and 1,011 at whalewisdom.com — OpenInsider has 35% as many. Neither site has a Wikipedia article, so that measure does not separate them. Hacker News mentions over the past year: openinsider.com 1, whalewisdom.com 1.
OpenInsider vs Dataroma
OpenInsider (#28, index 15.5) against Dataroma (#30, index 12.6). Links: 350 subnets point at openinsider.com and 502 at dataroma.com — OpenInsider has 70% as many. Neither site has a Wikipedia article, so that measure does not separate them. Hacker News mentions over the past year: openinsider.com 1, dataroma.com 0.
OpenInsider vs Fintel
OpenInsider (#28, index 15.5) against Fintel (#24, index 27.6). Links: 350 subnets point at openinsider.com and 1,859 at fintel.io — OpenInsider has 19% as many. Neither site has a Wikipedia article, so that measure does not separate them. Hacker News mentions over the past year: openinsider.com 1, fintel.io 2.
Who links to OpenInsider
The Majestic Million places openinsider.com at #638,752 among the million most linked-to domains on the web, from #617,624 in its previous update. Pages linking to it sit on 350 distinct subnets and 427 IP addresses. Among the 30 sites here that is 0.0 points out of 100 on links.
OpenInsider on Wikipedia
OpenInsider has no Wikipedia article we could measure in any language edition, so it scores zero on readership and ties for last with 17 of the other 29 sites. Its place at #28 rests on links and Hacker News mentions alone.
Next to OpenInsider in the overall ranking
Ranked just above: TrendSpider (#27, charting), index 16.1. Just below: Koyfin (#29, data and screening), index 13.8.
Questions people ask
What is the most popular alternative to OpenInsider?
By attention, Quiver Quantitative: index 37.4, 1,574 linking subnets and 15 Hacker News mentions in a year. That is a measure of how widely it is noticed, not of whether it suits you better than OpenInsider.
How is OpenInsider's index of 15.5 worked out?
It is the average of three rank scores among the 30 sites: 0.0 for links, 29.3 for Wikipedia readership and 17.2 for Hacker News mentions. First place on a measure is worth 100, last place 0.
Is OpenInsider still being talked about?
On Hacker News, openinsider.com appeared in 0 stories and comments in the last 30 days and 1 in the last 365.
Where else can I read 13F holdings for free?
This site publishes Form 13F-HR holdings for the 59 funds it tracks, straight from SEC EDGAR, with no account needed: read them by fund or by stock. It is our own page, so it is not part of the ranking above.
Wondering what copying a big holder you found on OpenInsider would do? With TradePlay you can trade real listed stocks with no money at risk — short selling, limit and stop orders included.TradePlay - Demo Trading · Made by the publisher of this page. Not part of the ranking above.
All 30 stock research sites, in one ranking
This is a ranking of attention, not of quality. It says nothing about accuracy, price or features, and it is not investment advice. Three measures, each turned into a rank among the 30 sites (first = 100 points, last = 0, ties share) and then averaged into the index: linking subnets — the number of distinct networks hosting pages that link to the site's domain, from the Majestic Million (2026-10-13), licensed CC BY 3.0; Wikipedia views — human readers of the site's article across every language edition, 2026-09-12 to 2026-10-11, from the Wikimedia pageviews API; Hacker News — stories and comments containing the domain in the 365 days to 2026-10-13, counted with the Algolia HN Search API. 18 of the 30 sites have no Wikipedia article in any language and tie for last on that measure. Sites that live under a larger domain (Yahoo Finance, Google Finance) are left out because their links cannot be separated from the parent's. We are not affiliated with any site listed; names are trademarks of their owners.