Every screener tells you who owns a biotech. This one tells you what kind of money it is.

An index fund, a multi-strategy pod running a three-week catalyst trade, a PIPE financier who bought at a discount, and a physician-founded specialist who spent four months on the mechanism all render as identical rows on a normal ownership table. They mean completely different things.

This classifies the money first — then lets you sort, score, filter and compare by that classification. It also surfaces Schedule 13D/G filings, which land within days of a 5% crossing rather than 45 days after a quarter ends.

The same 5.1% stake, four different meanings

Index / passive5.1% of the shares outNo thesis. Zero information.

Multi-strat pod5.1% of the shares outSized to a catalyst date.

Structured / financing5.1% of the shares outBought the placement at a discount.

Specialist HF5.1% of the shares outFour months on the mechanism.

A commercial ownership table shows you four rows that look the same. That difference is the entire signal, and it is the thing this tool encodes.

Tracked institutional value

$158B

across 36 specialist and crossover books, at 2026-06-30

Institutional books

2026-03-31 and 2026-06-30 — so every delta is real

Institutions classified

across eight classes of capital

Issuer positions

2,805

624 of them closed out last quarter

Schedule 13D/G filings

652

141 of them activist 13Ds

Filed since the last 13F

232

⚡ the freshest information in the tool

Securities

1,492

tagged by area, modality and clinical stage

Lonely-conviction positions

big specialist bets nobody else has found

Crowded names

narrow door on the way out

The register, by kind of capital

Every institution in the dataset carries one of eight classes and an explicit scoring weight — index money is weighted at zero, specialist conviction at full. Counts below are institutions, not dollars.

Specialist HF30

Venture & strategic9

Multi-strat pod8

Structured / financing2

Other2

Generalist L/S1

Long-only institutional1

Index / passive1

Classifies every holder

Eight classes of capital, each with an explicit scoring weight. Index money counts for zero. A pod counts for a quarter of a specialist.

Shows what actually changed

Each fund's book differenced against its own prior-quarter filing — opened, added, trimmed, and the exits most trackers throw away.

Surfaces Schedule 13D/G

The only ownership data that is not 45 days stale. A ⚡ marks anything filed after the quarter closed.

Finds lonely conviction

Large specialist positions almost nobody else holds — which a breadth-rewarding score systematically underrates, and the tool says so.

Flags crowding

Where specialists collectively own enough of an issuer that the door out is narrower than the position implies.

Refuses numbers it cannot stand behind

Where a reverse split has put holdings and quote on different share bases, ownership percentages are suppressed with a warning rather than shown wrong.

Have a look

Drop an email and the terminal opens. No password, no confirmation step, nothing to install.

What happens to your address. It is stored so I know who has looked and can tell you when the next quarter lands. Which securities get opened is logged against it, because that is the only way to learn what people actually find useful. It is not sold, not shared, and not passed to any third party. Reply to any mail from me and I will delete the row. There is no confirmation email, so nothing here is a verified identity — this is a gate on the dataset, not an account.

Not investment advice. This states observations — three specialists exited this last quarter — never a verdict. It does not tell you to buy, sell or trim, does not model returns, and assumes you check price and valuation elsewhere. A high signal score on a failing asset is still a failing asset. 13F is a lagged, long-only, no-shorts snapshot; movement is a two-quarter difference, not a transaction log.