IPGP IPG Photonics Corporation
IPG Photonics Corporation (IPGP) 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 |
|---|---|---|---|---|---|---|
| Bridgewater Associates Quant Macro | Sold Out | -5.1K | -100.0% | $595.5K | 0.0% | 61 |
| MILLENNIUM MANAGEMENT LLC | Sold Out | -22.7K | -100.0% | $2.7M | 0.0% | 59 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -10.1K | -100.0% | $1.2M | 0.0% | 58 |
| CITADEL ADVISORS LLC Quant | Increased | +192.0K | +103.4% | $22.5M | 0.0% | 56 |
| Tudor Investment Corporation Macro | New | +14.2K | — | $1.7M | 0.0% | 56 |
| Armistice Capital Long/Short Healthcare | Sold Out | -1.8K | -100.0% | $215.3K | 0.0% | 53 |
| Trexquant Investment Quant | Sold Out | -11.9K | -100.0% | $1.4M | 0.0% | 53 |
| TWO SIGMA INVESTMENTS, LP Quant | Increased | +27.0K | +197.9% | $3.2M | 0.0% | 53 |
| Quadrature Capital Quant | New | +5.0K | — | $582.3K | 0.0% | 53 |
| Holocene Advisors, LP | Increased | +16.1K | +184.2% | $1.9M | 0.0% | 52 |
Most significant buyers
By move score, not size.
- CITADEL ADVISORS LLC
- Tudor Investment Corporation
- TWO SIGMA INVESTMENTS, LP
- Quadrature Capital
- Holocene Advisors, LP
Most significant sellers
By move score, not size.
- Bridgewater Associates
- MILLENNIUM MANAGEMENT LLC
- MARSHALL WACE, LLP
- Armistice Capital
- Trexquant Investment
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Bridgewater Associates | 1 | 0 | 5.1K | -5.1K | -100.0% | 0.0% | Sold Out | 61 |
| MILLENNIUM MANAGEMENT LLC | 2 | 0 | 22.7K | -22.7K | -100.0% | 0.0% | Sold Out | 59 |
| MARSHALL WACE, LLP | 2 | 0 | 10.1K | -10.1K | -100.0% | 0.0% | Sold Out | 58 |
| CITADEL ADVISORS LLC | 1 | 377.8K | 185.8K | +192.0K | +103.4% | 0.0% | Increased | 56 |
| Tudor Investment Corporation | 2 | 14.2K | 0 | +14.2K | — | 0.0% | New | 56 |
| Armistice Capital | 3 | 0 | 1.8K | -1.8K | -100.0% | 0.0% | Sold Out | 53 |
| Trexquant Investment | 3 | 0 | 11.9K | -11.9K | -100.0% | 0.0% | Sold Out | 53 |
| TWO SIGMA INVESTMENTS, LP | 2 | 40.7K | 13.7K | +27.0K | +197.9% | 0.0% | Increased | 53 |
| Quadrature Capital | 3 | 5.0K | 0 | +5.0K | — | 0.0% | New | 53 |
| Holocene Advisors, LP | 2 | 24.8K | 8.7K | +16.1K | +184.2% | 0.0% | Increased | 52 |
| Edgestream Partners | 4 | 11.6K | 0 | +11.6K | — | 0.0% | New | 51 |
| Brevan Howard Capital Management | 3 | 6.6K | 0 | +6.6K | — | 0.0% | New | 49 |
| Boothbay Fund Management | 4 | 2.5K | 0 | +2.5K | — | 0.0% | New | 49 |
| Winton Group | 4 | 0 | 2.1K | -2.1K | -100.0% | 0.0% | Sold Out | 48 |
| Engineers Gate | 4 | 3.2K | 0 | +3.2K | — | 0.0% | New | 48 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 122.2K | 85.7K | +36.5K | +42.6% | 0.0% | Increased | 40 |
| Aquatic Capital Management | 4 | 6.6K | 12.2K | -5.6K | -45.9% | 0.0% | Reduced | 29 |
| Gotham Asset Management, LLC | 2 | 8.8K | 10.3K | -1.5K | -14.5% | 0.0% | Reduced | 27 |
| AQR Capital Management | 3 | 448.6K | 429.7K | +18.9K | +4.4% | 0.0% | Increased | 23 |
| Schonfeld Strategic Advisors | 3 | 4.8K | 5.4K | -574 | -10.7% | 0.0% | Reduced | 23 |
| Man Group | 3 | 15.6K | 15.6K | +2 | +0.0% | 0.0% | Increased | 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.