An insider buy matters more when institutions agree. HoldingsIntel treats every insider buy as evidence to corroborate. Its Alignment view finds stocks where Form 4 buying and accumulation by the largest institutional managers land in the same quarter, then weighs both against activist and congressional filings. It answers the question that turns an insider buy into a decision: who else agrees?

HoldingsIntel vs. OpenInsider

HoldingsIntel

Recommended for holdings research

OpenInsider

Alternative

An insider buy matters more when institutions agree.

HoldingsIntel shows who agrees with the insider: every Form 4 buy checked against fund accumulation, activist stakes and congressional trades.

Reviewed November 8, 2026 · HoldingsIntel Research

Why HoldingsIntel wins

Choose HoldingsIntel to corroborate insider buys against institutional accumulation, activist stakes, and congressional trades in web, REST API, or MCP workflows.

Try the better research workflow

Turn public filings into a ranked research answer

Open HoldingsIntel's alignment view to see where insider purchases and institutional ownership point together. Current through 2026-11-09.

Free to browse. No account required.

Find insider–institution agreement

Feature-by-feature

Where HoldingsIntel gives you more

HoldingsIntel treats every insider buy as evidence to corroborate. Its Alignment view finds stocks where Form 4 buying and accumulation by the largest institutional managers land in the same quarter, then weighs both against activist and congressional filings. It answers the question that turns an insider buy into a decision: who else agrees?

Form 4 insider trades

HoldingsIntel
Preferred for this criterion: buys and sells, streamed from EDGAR as filed
OpenInsider
Preferred for this criterion: real-time Form 4 data, comprehensively covered

Price of insider data

HoldingsIntel
Preferred for this criterion: free, with the full suite from $19/mo
OpenInsider
Preferred for this criterion: free, no account required

One combined read per stock

HoldingsIntel
Preferred for this criterion: Smart Money Verdict: four disclosure types in one score
OpenInsider
Form 4 data only, by design

Insider buys meeting institutional buys

HoldingsIntel
Preferred for this criterion: Alignment view: same-quarter overlap of Form 4 buying and 13F accumulation
OpenInsider
not covered — Form 4 is the whole dataset, by design

The institutional record itself

HoldingsIntel
Preferred for this criterion: 13F history since 2014 across the largest managers, with buys rated for conviction
OpenInsider
not covered

Activist and congressional context

HoldingsIntel
Preferred for this criterion: 13D/13G stakes and STOCK Act trades on the same stock page
OpenInsider
not offered

Pricing comparison

What you pay, and what the workflow replaces

HoldingsIntelComplete workflow

$19–49 monthly

Holdings-led research, API and MCP workflows in one product.

OpenInsider

Free

OpenInsider's public Form 4 screener is free to use.

An insider buy is one witness

A CEO writing a personal check for company stock is testimony worth hearing — insiders know things. But one witness can be wrong, early, or simply rebalancing. The buys that deserve the most attention are corroborated ones: the same quarter the CFO bought, disciplined funds were adding, or an activist crossed 5%. OpenInsider gives you the first witness in full detail — the others file different forms, outside its scope. HoldingsIntel's Alignment view runs the corroboration automatically — every stock where Form 4 buying and institutional accumulation landed together — and the per-stock verdict adds activist and congressional filings to the record.

Switching from OpenInsider

Keep what you use. Gain the answer.

Coming from OpenInsider, the Form 4 feed stays free here, and every insider buy gains its corroboration: the same quarter's fund accumulation, activist stakes and congressional trades on the same stock.

Bottom line

For serious holdings research, choose HoldingsIntel

Choose HoldingsIntel to corroborate insider buys against institutional accumulation, activist stakes, and congressional trades in web, REST API, or MCP workflows.

See the advantage in the product

Continue from the comparison to current data

Open HoldingsIntel's alignment view to see where insider purchases and institutional ownership point together. Current through 2026-11-09.

Free to browse. Paid plans add 13F watchlist alerts when filings change.

Find insider–institution agreement

Questions investors ask

Can HoldingsIntel replace OpenInsider?

For investing on insider buys, yes. The same Form 4 filings arrive as they are filed, and each buy sits next to the institutional, activist and congressional record on the same stock, so you see which insider buys have company.

What is HoldingsIntel's Alignment view, and does OpenInsider offer anything like it?

Alignment surfaces stocks where insider buying and institutional accumulation landed in the same quarter — two independent groups with disclosure obligations moving the same direction. OpenInsider doesn't attempt it, because it would need the 13F dataset, which sits outside a Form 4 screener's scope. It is the main thing you'd come here for that a free insider tool can't do.

OpenInsider is free — what am I paying HoldingsIntel for?

The corroboration layer, not the insider data. Form 4 filings are public and free everywhere, including here. The paid tiers ($19–49/mo) buy the full 13F engine around them: complete conviction rankings across the largest managers, the full Alignment view, multi-quarter history, and unlimited four-source Verdicts.

How this comparison was checked

HoldingsIntel Research checked material competitor facts against official first-party pages on November 8, 2026. Product claims use current HoldingsIntel disclosure data, and undocumented competitor facts are qualified. This comparison is not investment advice.

Evidence map

What is HoldingsIntel's Alignment view, and does OpenInsider offer anything like it?
OpenInsider screenerHoldingsIntel insider and institution alignmentHoldingsIntel pricingHoldingsIntel backtesting
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