APH Amphenol Corp.
Amphenol Corp. (APH) 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 |
|---|---|---|---|---|---|---|
| Egerton Capital Long/Short Growth | Increased | +2.00M | +69.5% | $351.8M | 8.3% | 81 |
| Cartenna Capital Long/Short | Increased | +380.0K | +161.7% | $67.0M | 4.0% | 74 |
| Atreides Management Long/Short Growth | New | +640.1K | — | $112.9M | 1.0% | 74 |
| Point72 Asset Management, L.P. | New | +618.9K | — | $109.1M | 0.2% | 68 |
| Suvretta Capital Management Long/Short Growth | New | +269.3K | — | $47.5M | 1.0% | 66 |
| Lone Pine Capital Long/Short Growth | Sold Out | -223.1K | -100.0% | $39.3M | 0.0% | 65 |
| Alkeon Capital Management Growth Tech | Increased | +1.11M | +24.1% | $196.3M | 4.1% | 65 |
| Senator Investment Group Event | Sold Out | -200.0K | -100.0% | $35.3M | 0.0% | 64 |
| LMR Partners Event Quant | New | +511.2K | — | $90.1M | 1.1% | 64 |
| Tudor Investment Corporation Macro | Sold Out | -614.0K | -100.0% | $108.3M | 0.0% | 64 |
Most significant buyers
By move score, not size.
- Egerton Capital
- Cartenna Capital
- Atreides Management
- Point72 Asset Management, L.P.
- Suvretta Capital Management
Most significant sellers
By move score, not size.
- Lone Pine Capital
- Senator Investment Group
- Tudor Investment Corporation
- Zimmer Partners
- MARSHALL WACE, LLP
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Egerton Capital | 1 | 4.9M | 2.9M | +2.00M | +69.5% | 8.3% | Increased | 81 |
| Cartenna Capital | 2 | 615.0K | 235.0K | +380.0K | +161.7% | 4.0% | Increased | 74 |
| Atreides Management | 1 | 640.1K | 0 | +640.1K | — | 1.0% | New | 74 |
| Point72 Asset Management, L.P. | 1 | 618.9K | 0 | +618.9K | — | 0.2% | New | 68 |
| Suvretta Capital Management | 2 | 269.3K | 0 | +269.3K | — | 1.0% | New | 66 |
| Lone Pine Capital | 1 | 0 | 223.1K | -223.1K | -100.0% | 0.0% | Sold Out | 65 |
| Alkeon Capital Management | 1 | 5.7M | 4.6M | +1.11M | +24.1% | 4.1% | Increased | 65 |
| Senator Investment Group | 2 | 0 | 200.0K | -200.0K | -100.0% | 0.0% | Sold Out | 64 |
| LMR Partners | 3 | 511.2K | 0 | +511.2K | — | 1.1% | New | 64 |
| Tudor Investment Corporation | 2 | 0 | 614.0K | -614.0K | -100.0% | 0.0% | Sold Out | 64 |
| Balyasny Asset Management L.P. | 2 | 1.5M | 19.4K | +1.44M | +7406.9% | 0.5% | Increased | 64 |
| Zimmer Partners | 2 | 0 | 231.5K | -231.5K | -100.0% | 0.0% | Sold Out | 62 |
| MARSHALL WACE, LLP | 2 | 109.2K | 2.3M | -2.23M | -95.3% | 0.0% | Reduced | 61 |
| Scopus Asset Management | 2 | 0 | 116.0K | -116.0K | -100.0% | 0.0% | Sold Out | 61 |
| Maverick Capital | 2 | 6.4K | 0 | +6.4K | — | 0.0% | New | 59 |
| J. Goldman & Co. | 3 | 110.7K | 0 | +110.7K | — | 0.8% | New | 58 |
| Voloridge Investment Management | 2 | 0 | 61.7K | -61.7K | -100.0% | 0.0% | Sold Out | 58 |
| ExodusPoint Capital Management | 3 | 0 | 126.2K | -126.2K | -100.0% | 0.0% | Sold Out | 57 |
| WORLDQUANT MILLENNIUM ADVISORS LLC | 2 | 793.9K | 2.3M | -1.53M | -65.9% | 0.5% | Reduced | 57 |
| Chilton Investment Company | 2 | 1.1M | 1.4M | -259.7K | -19.1% | 4.9% | Reduced | 56 |
| Rokos Capital Management | 2 | 1.7K | 0 | +1.7K | — | 0.0% | New | 56 |
| Squarepoint Ops LLC | 2 | 741.4K | 176.4K | +564.9K | +320.2% | 0.3% | Increased | 56 |
| Trexquant Investment | 3 | 0 | 242.6K | -242.6K | -100.0% | 0.0% | Sold Out | 56 |
| Walleye Capital | 3 | 71.6K | 0 | +71.6K | — | 0.1% | New | 56 |
| Hudson Bay Capital Management | 3 | 0 | 12.1K | -12.1K | -100.0% | 0.0% | Sold Out | 55 |
| Capstone Investment Advisors | 3 | 0 | 6.6K | -6.6K | -100.0% | 0.0% | Sold Out | 55 |
| Schonfeld Strategic Advisors | 3 | 480.3K | 4.5K | +475.9K | +10691.9% | 0.6% | Increased | 54 |
| Systematic Alpha Investments | 2 | 1.4K | 0 | +1.4K | — | 0.0% | New | 54 |
| MILLENNIUM MANAGEMENT LLC | 2 | 838.3K | 2.3M | -1.48M | -63.9% | 0.1% | Reduced | 53 |
| Polar Asset Management Partners | 3 | 2.3K | 0 | +2.3K | — | 0.0% | New | 53 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 152.0K | 574.1K | -422.1K | -73.5% | 0.0% | Reduced | 52 |
| Moore Capital Management | 3 | 66.6K | 5.6K | +61.1K | +1097.5% | 0.3% | Increased | 52 |
| CenterBook Partners | 4 | 4.9K | 152.3K | -147.4K | -96.8% | 0.0% | Reduced | 51 |
| Centiva Capital | 4 | 11.6K | 0 | +11.6K | — | 0.1% | New | 51 |
| Caption Management | 3 | 0 | 3.0K | -3.0K | -100.0% | 0.0% | Sold Out | 50 |
| Boothbay Fund Management | 4 | 142.8K | 43.3K | +99.5K | +229.6% | 0.5% | Increased | 49 |
| TWO SIGMA INVESTMENTS, LP | 2 | 77.1K | 290.6K | -213.5K | -73.5% | 0.0% | Reduced | 48 |
| Graham Capital Management | 3 | 39.3K | 19.3K | +20.0K | +103.9% | 0.3% | Increased | 47 |
| Parallax Volatility Advisers | 3 | 11.1K | 279 | +10.8K | +3864.5% | 0.1% | Increased | 46 |
| Edgestream Partners | 4 | 21.2K | 4.9K | +16.3K | +333.5% | 0.1% | Increased | 45 |
| Qube Research & Technologies Ltd | 2 | 1.5M | 2.5M | -1.09M | -42.9% | 0.3% | Reduced | 45 |
| Woodline Partners LP | 2 | 246.1K | 566.0K | -319.8K | -56.5% | 0.1% | Reduced | 44 |
| Winton Group | 4 | 16.5K | 87.7K | -71.2K | -81.2% | 0.1% | Reduced | 44 |
| Alphadyne Asset Management | 3 | 1.2K | 7.5K | -6.2K | -83.4% | 0.0% | Reduced | 44 |
| Bridgewater Associates | 1 | 697.6K | 863.0K | -165.4K | -19.2% | 0.6% | Reduced | 42 |
| Voleon Capital Management | 3 | 4.0K | 18.2K | -14.2K | -77.8% | 0.0% | Reduced | 42 |
| Verition Fund Management | 2 | 60.0K | 136.0K | -76.0K | -55.9% | 0.1% | Reduced | 42 |
| Alyeska Investment Group, L.P. | 2 | 2.3M | 2.8M | -518.7K | -18.3% | 1.2% | Reduced | 41 |
| Lighthouse Investment Partners | 3 | 32.5K | 18.9K | +13.6K | +71.7% | 0.2% | Increased | 40 |
| Gotham Asset Management, LLC | 2 | 256.4K | 474.9K | -218.5K | -46.0% | 0.1% | Reduced | 40 |
| Man Group | 3 | 2.5M | 1.9M | +554.6K | +28.8% | 0.8% | Increased | 38 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 1.4M | 1.8M | -361.8K | -20.3% | 0.4% | Reduced | 37 |
| CITADEL ADVISORS LLC | 1 | 783.6K | 1.0M | -253.2K | -24.4% | 0.1% | Reduced | 37 |
| Y-Intercept | 4 | 58.1K | 132.8K | -74.6K | -56.2% | 0.2% | Reduced | 37 |
| Magnetar Capital | 2 | 1.6K | 3.4K | -1.8K | -52.2% | 0.0% | Reduced | 37 |
| Quantbot Technologies | 4 | 11.8K | 46.6K | -34.7K | -74.6% | 0.1% | Reduced | 36 |
| D. E. Shaw & Co., Inc. | 1 | 372.0K | 311.1K | +60.9K | +19.6% | 0.0% | Increased | 36 |
| Select Equity Group | 1 | 1.2M | 1.2M | +50.0K | +4.2% | 1.2% | Increased | 36 |
| AQR Capital Management | 3 | 4.5M | 5.6M | -1.15M | -20.4% | 0.3% | Reduced | 34 |
| Engineers Gate | 4 | 101.9K | 157.4K | -55.5K | -35.3% | 0.2% | Reduced | 29 |
| Capula Management | 2 | 72 | 81 | -9 | -11.1% | 0.0% | Reduced | 27 |
| Jain Global | 3 | 92.5K | 105.1K | -12.6K | -12.0% | 0.2% | Reduced | 27 |
| Capital Fund Management | 3 | 275.7K | 288.0K | -12.3K | -4.3% | 0.4% | Reduced | 27 |
| Caxton Associates | 3 | 44.0K | 43.4K | +539 | +1.2% | 0.1% | Increased | 23 |
| Brevan Howard Capital Management | 3 | 32.5K | 32.4K | +85 | +0.3% | 0.1% | Increased | 19 |
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.