Our story
We started by asking who really moves prices
Most market commentary chases headlines. We chase filings. Our team built this space to
map how concentrated ownership by large institutions shapes the way individual
securities trade. No slogans. Just filings, code, and stubborn curiosity.
We exist because ownership concentration is under-studied
Academic finance talks about liquidity. Activist campaigns grab headlines. But the quiet accumulation and dispersion of institutional positions across the cross section of equities is where a lot of price formation actually happens. We built this platform to study that gap. Not to sell predictions. To document patterns and share what we find.
Our work begins with regulatory filings and ends with open, reproducible
analysis. We do not hide behind proprietary models or black-box scores. Every
conclusion we publish can be traced back to a primary source.
We are not advisors. We do not manage capital. We are researchers who believe
that understanding who owns what and how those positions shift is a public good
worth building tools around.
The platform is maintained by a small team of data scientists and market
analysts. We update our datasets continuously and publish insights as we verify
them.
What guides us
Five principles keep our research honest and our community useful.
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Source first
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We never quote a number we cannot trace. Every statistic links to a filing, a
dataset, or a documented methodology. If the source is weak, we say so.
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No predictions sold
We map what has happened and what is happening now. We do not forecast prices or promise outcomes. Our value is clarity, not clairvoyance.
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Open methodology
Our analytical steps are published alongside our results. If you disagree with a filter or a weighting scheme, you can replicate our work and improve it.
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Community review
We publish drafts and invite correction. The best research survives scrutiny, and we
build that scrutiny into our process from day one.
Complex ownership dynamics deserve plain language. We write for curious readers, not for tenure committees.
The team
Researchers and builders behind the ownership maps
Mara O'Donnell
Lead Researcher
Sean Byrne
Data Architect
Niamh Kelleher
Market Analyst
Rory Gallagher
Quantitative Developer
Our path
Key moments in building a research platform focused on institutional ownership concentration
2019
First ownership map built
Mara compiled the initial cross-sectional dataset linking institutional positions to price volatility metrics. The project began as a personal research repository with no public interface.
Dataset
Research
2021
Platform launched publicly
After two years of internal validation, the team released the first public version of the ownership mapping tool. Users could now explore concentration metrics across sectors and compare historical trends.
Launch
Public tool
2023
Real-time filing integration
Sean led the rebuild of the data pipeline to process regulatory filings within hours of publication. This reduced the lag between filing date and analytical availability from weeks to under a day.
Infrastructure
Speed
2025
Methodology published openly
The team released its full analytical framework under an open documentation standard. Other researchers could now replicate, critique, and extend the ownership concentration scores.
Transparency
Open science
2026
Community review program introduced
Niamh launched a structured feedback system where registered users could flag data anomalies and suggest methodological improvements. Corrections are now published monthly.
Community
Quality
From a single dataset to a growing research community.