JSPR Jasper Therapeutics, Inc.
Jasper Therapeutics, Inc. (JSPR) 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 |
|---|---|---|---|---|---|---|
| Soleus Capital Management Growth Healthcare | Sold Out | -276.3K | -100.0% | $116.3K | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -45.7K | -100.0% | $19.2K | 0.0% | 56 |
| Qube Research & Technologies Ltd Quant | New | +33.7K | — | $14.2K | 0.0% | 55 |
| Squarepoint Ops LLC Quant | Sold Out | -64.9K | -100.0% | $27.3K | 0.0% | 54 |
| Readystate Asset Management Long/Short | Sold Out | -27.5K | -100.0% | $11.6K | 0.0% | 49 |
| Boothbay Fund Management | Sold Out | -582.8K | -100.0% | $245.3K | 0.0% | 49 |
| Jain Global Long/Short Quant | Increased | +33.2K | +184.0% | $14.0K | 0.0% | 46 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.13M | -69.9% | $476.0K | 0.0% | 44 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Increased | +60.4K | +34.0% | $25.4K | 0.0% | 36 |
| Engineers Gate Quant | Reduced | -13.1K | -50.3% | $5.5K | 0.0% | 29 |
Most significant buyers
By move score, not size.
- Qube Research & Technologies Ltd
- Jain Global
- RENAISSANCE TECHNOLOGIES LLC
Most significant sellers
By move score, not size.
- Soleus Capital Management
- MARSHALL WACE, LLP
- Squarepoint Ops LLC
- Readystate Asset Management
- Boothbay Fund Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Soleus Capital Management | 2 | 0 | 276.3K | -276.3K | -100.0% | 0.0% | Sold Out | 57 |
| MARSHALL WACE, LLP | 2 | 0 | 45.7K | -45.7K | -100.0% | 0.0% | Sold Out | 56 |
| Qube Research & Technologies Ltd | 2 | 33.7K | 0 | +33.7K | — | 0.0% | New | 55 |
| Squarepoint Ops LLC | 2 | 0 | 64.9K | -64.9K | -100.0% | 0.0% | Sold Out | 54 |
| Readystate Asset Management | 3 | 0 | 27.5K | -27.5K | -100.0% | 0.0% | Sold Out | 49 |
| Boothbay Fund Management | 4 | 0 | 582.8K | -582.8K | -100.0% | 0.0% | Sold Out | 49 |
| Jain Global | 3 | 51.2K | 18.0K | +33.2K | +184.0% | 0.0% | Increased | 46 |
| MILLENNIUM MANAGEMENT LLC | 2 | 486.9K | 1.6M | -1.13M | -69.9% | 0.0% | Reduced | 44 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 237.9K | 177.5K | +60.4K | +34.0% | 0.0% | Increased | 36 |
| Engineers Gate | 4 | 13.0K | 26.1K | -13.1K | -50.3% | 0.0% | Reduced | 29 |
| Rock Springs Capital Management | 3 | 1.1M | 1.1M | 0 | +0.0% | 0.0% | Unchanged | 17 |
| ADAR1 Capital Management | 3 | 140.0K | 140.0K | 0 | +0.0% | 0.0% | Unchanged | 17 |
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.