RMD ResMed Inc.
ResMed Inc. (RMD) 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 |
|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC Quant | New | +1.6K | — | $315.7K | 0.0% | 58 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | +6.8K | — | $1.3M | 0.0% | 58 |
| WORLDQUANT MILLENNIUM ADVISORS LLC Quant | Increased | +328.2K | +324.4% | $64.0M | 0.3% | 57 |
| Weiss Asset Management Event Quant | Sold Out | -22.6K | -100.0% | $4.4M | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | Reduced | -374.7K | -98.3% | $73.0M | 0.0% | 56 |
| Verition Fund Management Event Long/Short | Sold Out | -22.4K | -100.0% | $4.4M | 0.0% | 56 |
| Tudor Investment Corporation Macro | Sold Out | -1.8K | -100.0% | $350.0K | 0.0% | 53 |
| Polar Asset Management Partners Long/Short | New | +1.5K | — | $298.2K | 0.0% | 53 |
| AQR Capital Management Long/Short Quant | Increased | +560.8K | +160.3% | $109.3M | 0.1% | 53 |
| Caxton Associates Macro | New | +1.5K | — | $299.5K | 0.0% | 53 |
Most significant buyers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- ADAGE CAPITAL PARTNERS GP, L.L.C.
- WORLDQUANT MILLENNIUM ADVISORS LLC
- Polar Asset Management Partners
- AQR Capital Management
Most significant sellers
By move score, not size.
- Weiss Asset Management
- MARSHALL WACE, LLP
- Verition Fund Management
- Tudor Investment Corporation
- Centiva Capital
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 1 | 1.6K | 0 | +1.6K | — | 0.0% | New | 58 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 6.8K | 0 | +6.8K | — | 0.0% | New | 58 |
| WORLDQUANT MILLENNIUM ADVISORS LLC | 2 | 429.4K | 101.2K | +328.2K | +324.4% | 0.3% | Increased | 57 |
| Weiss Asset Management | 2 | 0 | 22.6K | -22.6K | -100.0% | 0.0% | Sold Out | 57 |
| MARSHALL WACE, LLP | 2 | 6.6K | 381.3K | -374.7K | -98.3% | 0.0% | Reduced | 56 |
| Verition Fund Management | 2 | 0 | 22.4K | -22.4K | -100.0% | 0.0% | Sold Out | 56 |
| Tudor Investment Corporation | 2 | 0 | 1.8K | -1.8K | -100.0% | 0.0% | Sold Out | 53 |
| Polar Asset Management Partners | 3 | 1.5K | 0 | +1.5K | — | 0.0% | New | 53 |
| AQR Capital Management | 3 | 910.6K | 349.8K | +560.8K | +160.3% | 0.1% | Increased | 53 |
| Caxton Associates | 3 | 1.5K | 0 | +1.5K | — | 0.0% | New | 53 |
| LMR Partners | 3 | 3.4K | 0 | +3.4K | — | 0.0% | New | 53 |
| Winton Group | 4 | 7.9K | 0 | +7.9K | — | 0.1% | New | 51 |
| Squarepoint Ops LLC | 2 | 25.3K | 3.9K | +21.4K | +552.9% | 0.0% | Increased | 51 |
| Bridgewater Associates | 1 | 67.4K | 39.2K | +28.1K | +71.7% | 0.1% | Increased | 50 |
| Caption Management | 3 | 3.2K | 0 | +3.2K | — | 0.0% | New | 50 |
| Walleye Capital | 3 | 84.9K | 3.3K | +81.7K | +2482.7% | 0.1% | Increased | 50 |
| Boothbay Fund Management | 4 | 2.4K | 0 | +2.4K | — | 0.0% | New | 49 |
| Centiva Capital | 4 | 0 | 1.3K | -1.3K | -100.0% | 0.0% | Sold Out | 48 |
| Brevan Howard Capital Management | 3 | 23.2K | 2.3K | +20.9K | +917.3% | 0.1% | Increased | 46 |
| CITADEL ADVISORS LLC | 1 | 508.3K | 332.1K | +176.2K | +53.0% | 0.1% | Increased | 44 |
| Ilex Capital Partners | 2 | 355.8K | 413.9K | -58.1K | -14.0% | 1.4% | Reduced | 43 |
| Schonfeld Strategic Advisors | 3 | 3.6K | 17.2K | -13.7K | -79.3% | 0.0% | Reduced | 42 |
| MILLENNIUM MANAGEMENT LLC | 2 | 204.7K | 142.3K | +62.5K | +43.9% | 0.0% | Increased | 41 |
| D. E. Shaw & Co., Inc. | 1 | 6.1K | 11.6K | -5.5K | -47.1% | 0.0% | Reduced | 41 |
| Quantbot Technologies | 4 | 78.4K | 44.1K | +34.3K | +77.8% | 0.6% | Increased | 39 |
| Man Group | 3 | 126.3K | 77.8K | +48.5K | +62.4% | 0.0% | Increased | 39 |
| Balyasny Asset Management L.P. | 2 | 3.3K | 2.2K | +1.1K | +49.8% | 0.0% | Increased | 39 |
| TWO SIGMA INVESTMENTS, LP | 2 | 411.0K | 312.5K | +98.6K | +31.5% | 0.1% | Increased | 38 |
| Voloridge Investment Management | 2 | 270.8K | 436.3K | -165.5K | -37.9% | 0.2% | Reduced | 38 |
| Engineers Gate | 4 | 8.1K | 4.6K | +3.6K | +77.8% | 0.0% | Increased | 36 |
| Y-Intercept | 4 | 6.9K | 20.3K | -13.4K | -66.0% | 0.0% | Reduced | 36 |
| Woodline Partners LP | 2 | 8.3K | 5.7K | +2.6K | +45.7% | 0.0% | Increased | 34 |
| Trexquant Investment | 3 | 58.7K | 107.3K | -48.6K | -45.3% | 0.1% | Reduced | 34 |
| Edgestream Partners | 4 | 25.5K | 39.7K | -14.3K | -35.9% | 0.2% | Reduced | 30 |
| Gotham Asset Management, LLC | 2 | 82.8K | 96.7K | -13.9K | -14.4% | 0.0% | Reduced | 29 |
| Capula Management | 2 | 1.5K | 1.3K | +220 | +16.9% | 0.0% | Increased | 29 |
| Capstone Investment Advisors | 3 | 1.9K | 2.6K | -628 | -24.5% | 0.0% | Reduced | 28 |
| Voleon Capital Management | 3 | 1.7K | 2.1K | -388 | -18.5% | 0.0% | Reduced | 25 |
| Graham Capital Management | 3 | 13.9K | 17.3K | -3.4K | -19.6% | 0.1% | Reduced | 24 |
| Jain Global | 3 | 4.0K | 3.8K | +118 | +3.1% | 0.0% | Increased | 22 |
| Suvretta Capital Management | 2 | 2.4K | 2.4K | 0 | +0.0% | 0.0% | Unchanged | 21 |
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.