ATNI ATN International, Inc.
ATN International, Inc. (ATNI) 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 |
|---|---|---|---|---|---|---|
| Magnetar Capital Event Quant | New | +22.3K | — | $591.9K | 0.0% | 54 |
| Squarepoint Ops LLC Quant | New | +10.5K | — | $277.6K | 0.0% | 54 |
| CITADEL ADVISORS LLC Quant | Increased | +59.9K | +155.2% | $1.6M | 0.0% | 54 |
| Quadrature Capital Quant | Sold Out | -15.8K | -100.0% | $419.3K | 0.0% | 53 |
| AQR Capital Management Long/Short Quant | Increased | +33.1K | +300.0% | $877.7K | 0.0% | 45 |
| Trexquant Investment Quant | Reduced | -42.8K | -62.5% | $1.1M | 0.0% | 37 |
| TWO SIGMA INVESTMENTS, LP Quant | Increased | +23.6K | +42.6% | $625.6K | 0.0% | 36 |
| MILLENNIUM MANAGEMENT LLC | Increased | +3.2K | +39.7% | $85.5K | 0.0% | 36 |
| Qube Research & Technologies Ltd Quant | Reduced | -5.1K | -26.8% | $133.9K | 0.0% | 31 |
| RENAISSANCE TECHNOLOGIES LLC Quant | Reduced | -16.8K | -5.0% | $445.1K | 0.0% | 29 |
Most significant buyers
By move score, not size.
- Magnetar Capital
- Squarepoint Ops LLC
- CITADEL ADVISORS LLC
- AQR Capital Management
- TWO SIGMA INVESTMENTS, LP
Most significant sellers
By move score, not size.
- Quadrature Capital
- Trexquant Investment
- Qube Research & Technologies Ltd
- RENAISSANCE TECHNOLOGIES LLC
- Engineers Gate
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Magnetar Capital | 2 | 22.3K | 0 | +22.3K | — | 0.0% | New | 54 |
| Squarepoint Ops LLC | 2 | 10.5K | 0 | +10.5K | — | 0.0% | New | 54 |
| CITADEL ADVISORS LLC | 1 | 98.5K | 38.6K | +59.9K | +155.2% | 0.0% | Increased | 54 |
| Quadrature Capital | 3 | 0 | 15.8K | -15.8K | -100.0% | 0.0% | Sold Out | 53 |
| AQR Capital Management | 3 | 44.2K | 11.0K | +33.1K | +300.0% | 0.0% | Increased | 45 |
| Trexquant Investment | 3 | 25.7K | 68.5K | -42.8K | -62.5% | 0.0% | Reduced | 37 |
| TWO SIGMA INVESTMENTS, LP | 2 | 79.1K | 55.5K | +23.6K | +42.6% | 0.0% | Increased | 36 |
| MILLENNIUM MANAGEMENT LLC | 2 | 11.3K | 8.1K | +3.2K | +39.7% | 0.0% | Increased | 36 |
| Qube Research & Technologies Ltd | 2 | 13.8K | 18.9K | -5.1K | -26.8% | 0.0% | Reduced | 31 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 320.9K | 337.7K | -16.8K | -5.0% | 0.0% | Reduced | 29 |
| D. E. Shaw & Co., Inc. | 1 | 375.1K | 373.6K | +1.6K | +0.4% | 0.0% | Increased | 27 |
| Brevan Howard Capital Management | 3 | 10.5K | 8.4K | +2.1K | +25.7% | 0.0% | Increased | 25 |
| Voleon Capital Management | 3 | 27.3K | 27.2K | +37 | +0.1% | 0.0% | Increased | 20 |
| Engineers Gate | 4 | 22.7K | 25.8K | -3.1K | -11.9% | 0.0% | Reduced | 20 |
| Winton Group | 4 | 15.8K | 15.9K | -24 | -0.2% | 0.0% | Reduced | 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.