VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Source checks: 13f.info checked September 30, 2026 · SecForm4.Com checked September 24, 2026
Tool Comparison
13f.info vs SecForm4.Com
- Paid from
- —
- Free plan
- Yes
- Platforms
- Web
Best if
- You want improved filings.
- You're a long-term investor who cares more about fundamentals than headlines
- Paid from
- —
- Free plan
- Yes
- Platforms
- Web
Best if
- Delayed quotes won't cut it; you need real-time data
- You want insider data, watchlist, and screeners.
- You've outgrown the basics and want pro-level depth
Pick 13f.info instead if
13f.info
Free · Web
- You want improved filings.
- You're a long-term investor who cares more about fundamentals than headlines
Start here
SecForm4.Com
Free · Web
- Delayed quotes won't cut it; you need real-time data
- You want insider data, watchlist, and screeners.
- You've outgrown the basics and want pro-level depth
Skip both if: Neither one clicks with how you research; there are strong third options.
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Our take
The bottom line
13f.info and SecForm4.Com cover a lot of the same ground (2 shared categories, institutional ownership and data visualizations), so for the basics you won't go far wrong with either. SecForm4.Com simply does more: 7 categories to 13f.info's 3, including insider data, watchlist, and screeners. 13f.info counters by being completely free.
What readers say
13f.info
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SecForm4.Com
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Key differences at a glance
- Real-time data
- SecForm4.Com
- Broader coverage
- SecForm4.Com7 vs 3 categories
- Free plan
- Both
What 13f.info does best
- Find institutional portfolio disclosures.
- Inspect reported position changes.
- Trace a manager's reported investment over time.
- Find managers reporting a specific holding.
- Follow links to original SEC documents.
What SecForm4.Com does best
- Tracking real-time Form 4 insider transactions with Insider Watch and company-level ownership views.
- Monitor SEC Forms 3, 4, 5, 13D/G, and 13F for U.S. insider, activist, and institutional ownership research.
- Insider and ownership views to filter recent transactions, company activity, and disclosure history before validating the original SEC filing.
- The Insider Trading Screener to filter by role, sector, or time window where the public site exposes those views.
- Buy/sell ratio charts to compare filing counts and dollar flows over time where available.
Side by side
Pricing comparison
See for yourself
Side by side
Price, platforms, data, and market coverage.ShowHide
Side by side
| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free | Free |
Free tier | Yes | Yes |
Free trial | — | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | No |
Broker sync | — | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate | Beginner, Intermediate, Advanced |
Best for | Value Investors, Analysts +1 more | — |
Categories covered | 3 | 7 |
Regions | — | North America |
| Data & capabilities | ||
Data quality | — | Latency: Real-time and Timezone: America/New_York |
| Try it | Visit 13f.info | Visit SecForm4.Com |
Standout features
The best features of 13f.info and SecForm4.Com.ShowHide
Standout features
What 13f.info does best
- Find institutional portfolio disclosures.
- Inspect reported position changes.
- Trace a manager's reported investment over time.
- Find managers reporting a specific holding.
- Follow links to original SEC documents.
What SecForm4.Com does best
- Tracking real-time Form 4 insider transactions with Insider Watch and company-level ownership views.
- Monitor SEC Forms 3, 4, 5, 13D/G, and 13F for U.S. insider, activist, and institutional ownership research.
- Insider and ownership views to filter recent transactions, company activity, and disclosure history before validating the original SEC filing.
- The Insider Trading Screener to filter by role, sector, or time window where the public site exposes those views.
- Buy/sell ratio charts to compare filing counts and dollar flows over time where available.
All details
Every attribute we track for 13f.info and SecForm4.Com.ShowHide
All details
| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptions | StocksOptionsBonds |
Experience | BeginnerIntermediate | BeginnerIntermediateAdvanced |
Target audience | Value InvestorsAnalystsStudents/Researchers | Not specified |
Regions | Not specified | North America |
Coverage details | Identifiers: CUSIP and CIK | Countries: USIdentifiers: Ticker |
| Data | ||
Data freshness | Not specified | Real-time |
| Plans & trust | ||
Vendor & support | Support: Email | SecForm4.Com, Inc.Country: United StatesSupport: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 4/5UX 3/5 |
Green tags are exclusive to that tool in this comparison.
Pricing
Plans, billing, free trials, and monthly prices.ShowHide
Pricing
| Tier | ||
|---|---|---|
| Free plan | Free | Free“Free access” |
Alternatives
Free alternatives
Questions we keep getting
What's the difference between 13f.info and SecForm4.Com?
13f.info leans toward institutional ownership, improved filings, and data visualizations, while SecForm4.Com puts more weight on insider data, institutional ownership, and watchlist. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do 13f.info and SecForm4.Com cost?
Good news: both 13f.info and SecForm4.Com have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: 13f.info or SecForm4.Com?
Honestly, neither is aimed at beginners. Expect a learning curve either way; that's the trade-off for the depth they offer.
Should I choose 13f.info or SecForm4.Com?
It depends on what you're after. Pick 13f.info if improved filings matter to you; go with SecForm4.Com if you'd rather have insider data and watchlist. And if you only need the basics both share, let price decide.
What asset classes do 13f.info and SecForm4.Com cover?
Both cover stocks and options. 13f.info also handles ETFs. SecForm4.Com adds bonds on top.
Does 13f.info or SecForm4.Com have real-time data?
SecForm4.Com offers real-time data, which matters if you trade actively. 13f.info runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.
Which has a better stock screener: 13f.info or SecForm4.Com?
SecForm4.Com has a stock screener for surfacing ideas; 13f.info doesn't, and focuses its energy elsewhere.
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.