AMPX Amprius Technologies, Inc.
Amprius Technologies, Inc. (AMPX) 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 |
|---|---|---|---|---|---|---|
| LMR Partners Event Quant | New | +1.75M | — | $24.3M | 0.3% | 58 |
| Point72 Asset Management, L.P. | Increased | +1.11M | +3982.3% | $15.4M | 0.0% | 57 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Increased | +1.05M | +291.9% | $14.5M | 0.0% | 56 |
| Voloridge Investment Management Quant | Sold Out | -532.0K | -100.0% | $7.4M | 0.0% | 56 |
| Holocene Advisors, LP | New | +27.2K | — | $376.8K | 0.0% | 56 |
| Gotham Asset Management, LLC Quant Value | Sold Out | -39.5K | -100.0% | $547.7K | 0.0% | 54 |
| ExodusPoint Capital Management Long/Short Quant | New | +179.3K | — | $2.5M | 0.0% | 54 |
| Wolverine Asset Management Event Quant | New | +58.9K | — | $816.5K | 0.1% | 54 |
| Verition Fund Management Event Long/Short | Sold Out | -17.0K | -100.0% | $236.2K | 0.0% | 54 |
| Hudson Bay Capital Management Event | New | +53.7K | — | $743.9K | 0.0% | 53 |
Most significant buyers
By move score, not size.
- LMR Partners
- Point72 Asset Management, L.P.
- RENAISSANCE TECHNOLOGIES LLC
- Holocene Advisors, LP
- ExodusPoint Capital Management
Most significant sellers
By move score, not size.
- Voloridge Investment Management
- Gotham Asset Management, LLC
- Verition Fund Management
- Schonfeld Strategic Advisors
- MARSHALL WACE, LLP
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| LMR Partners | 3 | 1.8M | 0 | +1.75M | — | 0.3% | New | 58 |
| Point72 Asset Management, L.P. | 1 | 1.1M | 27.9K | +1.11M | +3982.3% | 0.0% | Increased | 57 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 1.4M | 359.5K | +1.05M | +291.9% | 0.0% | Increased | 56 |
| Voloridge Investment Management | 2 | 0 | 532.0K | -532.0K | -100.0% | 0.0% | Sold Out | 56 |
| Holocene Advisors, LP | 2 | 27.2K | 0 | +27.2K | — | 0.0% | New | 56 |
| Gotham Asset Management, LLC | 2 | 0 | 39.5K | -39.5K | -100.0% | 0.0% | Sold Out | 54 |
| ExodusPoint Capital Management | 3 | 179.3K | 0 | +179.3K | — | 0.0% | New | 54 |
| Wolverine Asset Management | 2 | 58.9K | 0 | +58.9K | — | 0.1% | New | 54 |
| Verition Fund Management | 2 | 0 | 17.0K | -17.0K | -100.0% | 0.0% | Sold Out | 54 |
| Hudson Bay Capital Management | 3 | 53.7K | 0 | +53.7K | — | 0.0% | New | 53 |
| Schonfeld Strategic Advisors | 3 | 0 | 135.8K | -135.8K | -100.0% | 0.0% | Sold Out | 53 |
| Capstone Investment Advisors | 3 | 32.4K | 0 | +32.4K | — | 0.0% | New | 53 |
| MARSHALL WACE, LLP | 2 | 131.2K | 1.2M | -1.10M | -89.3% | 0.0% | Reduced | 52 |
| CenterBook Partners | 4 | 0 | 118.3K | -118.3K | -100.0% | 0.0% | Sold Out | 51 |
| Walleye Capital | 3 | 4.3K | 0 | +4.3K | — | 0.0% | New | 51 |
| Boothbay Fund Management | 4 | 0 | 73.1K | -73.1K | -100.0% | 0.0% | Sold Out | 51 |
| Y-Intercept | 4 | 0 | 164.2K | -164.2K | -100.0% | 0.0% | Sold Out | 50 |
| Jain Global | 3 | 91.3K | 19.7K | +71.6K | +363.9% | 0.0% | Increased | 46 |
| Tudor Investment Corporation | 2 | 747.4K | 419.7K | +327.8K | +78.1% | 0.1% | Increased | 44 |
| Squarepoint Ops LLC | 2 | 69.2K | 232.1K | -162.9K | -70.2% | 0.0% | Reduced | 43 |
| D. E. Shaw & Co., Inc. | 1 | 671.8K | 1.1M | -403.6K | -37.5% | 0.0% | Reduced | 38 |
| Parallax Volatility Advisers | 3 | 69.7K | 40.8K | +28.9K | +70.9% | 0.1% | Increased | 37 |
| Engineers Gate | 4 | 15.9K | 70.7K | -54.8K | -77.6% | 0.0% | Reduced | 36 |
| TWO SIGMA INVESTMENTS, LP | 2 | 4.3M | 3.5M | +812.6K | +23.2% | 0.0% | Increased | 36 |
| Trexquant Investment | 3 | 1.1M | 716.3K | +381.3K | +53.2% | 0.1% | Increased | 35 |
| CITADEL ADVISORS LLC | 1 | 1.7M | 1.4M | +237.7K | +16.5% | 0.0% | Increased | 33 |
| MILLENNIUM MANAGEMENT LLC | 2 | 1.2M | 1.0M | +172.8K | +16.7% | 0.0% | Increased | 32 |
| Quantbot Technologies | 4 | 31.2K | 96.6K | -65.4K | -67.7% | 0.0% | Reduced | 31 |
| Voleon Capital Management | 3 | 205.3K | 298.4K | -93.0K | -31.2% | 0.1% | Reduced | 30 |
| Qube Research & Technologies Ltd | 2 | 1.1M | 1.2M | -91.4K | -7.4% | 0.0% | Reduced | 28 |
| Aquatic Capital Management | 4 | 189.2K | 282.7K | -93.4K | -33.1% | 0.1% | Reduced | 28 |
| AQR Capital Management | 3 | 173.2K | 137.7K | +35.4K | +25.7% | 0.0% | Increased | 26 |
| Graham Capital Management | 3 | 10.4K | 13.8K | -3.4K | -24.7% | 0.0% | Reduced | 24 |
| Brevan Howard Capital Management | 3 | 27.0K | 31.3K | -4.4K | -13.9% | 0.0% | Reduced | 22 |
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.