IMRX Immuneering Corporation
Immuneering Corporation (IMRX) 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 |
|---|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. Quant | New | +203.7K | — | $1.0M | 0.0% | 60 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Sold Out | -72.9K | -100.0% | $363.6K | 0.0% | 58 |
| Weiss Asset Management Event Quant | Sold Out | -88.0K | -100.0% | $439.0K | 0.0% | 54 |
| Hudson Bay Capital Management Event | Sold Out | -95.9K | -100.0% | $478.5K | 0.0% | 53 |
| Schonfeld Strategic Advisors Long/Short Quant | Sold Out | -15.9K | -100.0% | $79.3K | 0.0% | 51 |
| Brevan Howard Capital Management Macro | Sold Out | -86.2K | -100.0% | $430.3K | 0.0% | 49 |
| Winton Group Quant Macro | New | +17.2K | — | $85.8K | 0.0% | 48 |
| Y-Intercept Quant | Sold Out | -14.3K | -100.0% | $71.3K | 0.0% | 48 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -772.3K | -70.0% | $3.9M | 0.0% | 46 |
| MARSHALL WACE, LLP Long/Short | Reduced | -1.26M | -63.3% | $6.3M | 0.0% | 43 |
Most significant buyers
By move score, not size.
- D. E. Shaw & Co., Inc.
- Winton Group
- Quantbot Technologies
- TWO SIGMA INVESTMENTS, LP
Most significant sellers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- Weiss Asset Management
- Hudson Bay Capital Management
- Schonfeld Strategic Advisors
- Brevan Howard Capital Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| D. E. Shaw & Co., Inc. | 1 | 203.7K | 0 | +203.7K | — | 0.0% | New | 60 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 0 | 72.9K | -72.9K | -100.0% | 0.0% | Sold Out | 58 |
| Weiss Asset Management | 2 | 0 | 88.0K | -88.0K | -100.0% | 0.0% | Sold Out | 54 |
| Hudson Bay Capital Management | 3 | 0 | 95.9K | -95.9K | -100.0% | 0.0% | Sold Out | 53 |
| Schonfeld Strategic Advisors | 3 | 0 | 15.9K | -15.9K | -100.0% | 0.0% | Sold Out | 51 |
| Brevan Howard Capital Management | 3 | 0 | 86.2K | -86.2K | -100.0% | 0.0% | Sold Out | 49 |
| Winton Group | 4 | 17.2K | 0 | +17.2K | — | 0.0% | New | 48 |
| Y-Intercept | 4 | 0 | 14.3K | -14.3K | -100.0% | 0.0% | Sold Out | 48 |
| MILLENNIUM MANAGEMENT LLC | 2 | 330.4K | 1.1M | -772.3K | -70.0% | 0.0% | Reduced | 46 |
| MARSHALL WACE, LLP | 2 | 731.9K | 2.0M | -1.26M | -63.3% | 0.0% | Reduced | 43 |
| Squarepoint Ops LLC | 2 | 57.7K | 226.0K | -168.4K | -74.5% | 0.0% | Reduced | 42 |
| Quantbot Technologies | 4 | 11.7K | 1.6K | +10.0K | +613.8% | 0.0% | Increased | 39 |
| CITADEL ADVISORS LLC | 1 | 386.4K | 447.3K | -60.9K | -13.6% | 0.0% | Reduced | 30 |
| TWO SIGMA INVESTMENTS, LP | 2 | 288.4K | 244.8K | +43.6K | +17.8% | 0.0% | Increased | 30 |
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.