BDSX Biodesix, Inc.
Biodesix, Inc. (BDSX) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Perceptive Advisors Growth Healthcare | New | +108.7K | — | $2.5M | 0.0% | 62 |
| Squarepoint Ops LLC Quant | New | +15.7K | — | $354.2K | 0.0% | 54 |
| Quadrature Capital Quant | New | +24.8K | — | $558.5K | 0.0% | 52 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Increased | +16.7K | +139.8% | $376.6K | 0.0% | 52 |
| TWO SIGMA INVESTMENTS, LP Quant | Increased | +41.6K | +92.0% | $937.9K | 0.0% | 49 |
| Walleye Capital Long/Short Quant | Increased | +63.6K | +586.8% | $1.4M | 0.0% | 47 |
| Soleus Capital Management Growth Healthcare | Increased | +169.4K | +40.7% | $3.8M | 0.5% | 40 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -9.6K | -40.0% | $216.5K | 0.0% | 36 |
| MARSHALL WACE, LLP Long/Short | Reduced | -25.4K | -18.0% | $573.6K | 0.0% | 30 |
| Trexquant Investment Quant | Reduced | -11.6K | -16.7% | $262.2K | 0.0% | 24 |
Most significant buyers
By move score, not size.
- Perceptive Advisors
- Squarepoint Ops LLC
- Quadrature Capital
- RENAISSANCE TECHNOLOGIES LLC
- TWO SIGMA INVESTMENTS, LP
Most significant sellers
By move score, not size.
- MILLENNIUM MANAGEMENT LLC
- MARSHALL WACE, LLP
- Trexquant Investment
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Perceptive Advisors | 1 | 108.7K | 0 | +108.7K | — | 0.0% | New | 62 |
| Squarepoint Ops LLC | 2 | 15.7K | 0 | +15.7K | — | 0.0% | New | 54 |
| Quadrature Capital | 3 | 24.8K | 0 | +24.8K | — | 0.0% | New | 52 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 28.6K | 11.9K | +16.7K | +139.8% | 0.0% | Increased | 52 |
| TWO SIGMA INVESTMENTS, LP | 2 | 86.8K | 45.2K | +41.6K | +92.0% | 0.0% | Increased | 49 |
| Walleye Capital | 3 | 74.4K | 10.8K | +63.6K | +586.8% | 0.0% | Increased | 47 |
| Soleus Capital Management | 2 | 586.0K | 416.6K | +169.4K | +40.7% | 0.5% | Increased | 40 |
| MILLENNIUM MANAGEMENT LLC | 2 | 14.4K | 24.0K | -9.6K | -40.0% | 0.0% | Reduced | 36 |
| MARSHALL WACE, LLP | 2 | 116.2K | 141.6K | -25.4K | -18.0% | 0.0% | Reduced | 30 |
| Trexquant Investment | 3 | 58.0K | 69.6K | -11.6K | -16.7% | 0.0% | Reduced | 24 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.