SENS Senseonics Holdings, Inc.
Senseonics Holdings, Inc. (SENS) 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 |
|---|---|---|---|---|---|---|
| Sessa Capital Event Long/Short | Increased | +2.67M | +151.3% | $15.2M | 0.4% | 58 |
| TWO SIGMA INVESTMENTS, LP Quant | New | +18.3K | — | $104.1K | 0.0% | 57 |
| Ghisallo Capital Management Long/Short | New | +125.0K | — | $710.0K | 0.0% | 55 |
| Hudson Bay Capital Management Event | Sold Out | -23.5K | -100.0% | $133.3K | 0.0% | 53 |
| Walleye Capital Long/Short Quant | New | +324.3K | — | $1.8M | 0.0% | 53 |
| Jain Global Long/Short Quant | Sold Out | -35.9K | -100.0% | $204.1K | 0.0% | 52 |
| Schonfeld Strategic Advisors Long/Short Quant | Sold Out | -20.4K | -100.0% | $115.9K | 0.0% | 51 |
| Trexquant Investment Quant | New | +135.1K | — | $767.5K | 0.0% | 51 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -481.2K | -85.9% | $2.7M | 0.0% | 50 |
| Readystate Asset Management Long/Short | New | +101.0K | — | $573.7K | 0.0% | 50 |
Most significant buyers
By move score, not size.
- Sessa Capital
- TWO SIGMA INVESTMENTS, LP
- Ghisallo Capital Management
- Walleye Capital
- Trexquant Investment
Most significant sellers
By move score, not size.
- Hudson Bay Capital Management
- Jain Global
- Schonfeld Strategic Advisors
- MILLENNIUM MANAGEMENT LLC
- Quantbot Technologies
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Sessa Capital | 2 | 4.4M | 1.8M | +2.67M | +151.3% | 0.4% | Increased | 58 |
| TWO SIGMA INVESTMENTS, LP | 2 | 18.3K | 0 | +18.3K | — | 0.0% | New | 57 |
| Ghisallo Capital Management | 2 | 125.0K | 0 | +125.0K | — | 0.0% | New | 55 |
| Hudson Bay Capital Management | 3 | 0 | 23.5K | -23.5K | -100.0% | 0.0% | Sold Out | 53 |
| Walleye Capital | 3 | 324.3K | 0 | +324.3K | — | 0.0% | New | 53 |
| Jain Global | 3 | 0 | 35.9K | -35.9K | -100.0% | 0.0% | Sold Out | 52 |
| Schonfeld Strategic Advisors | 3 | 0 | 20.4K | -20.4K | -100.0% | 0.0% | Sold Out | 51 |
| Trexquant Investment | 3 | 135.1K | 0 | +135.1K | — | 0.0% | New | 51 |
| MILLENNIUM MANAGEMENT LLC | 2 | 79.2K | 560.4K | -481.2K | -85.9% | 0.0% | Reduced | 50 |
| Readystate Asset Management | 3 | 101.0K | 0 | +101.0K | — | 0.0% | New | 50 |
| Quantbot Technologies | 4 | 0 | 6.2K | -6.2K | -100.0% | 0.0% | Sold Out | 45 |
| Brevan Howard Capital Management | 3 | 28.9K | 13.1K | +15.8K | +120.7% | 0.0% | Increased | 43 |
| CITADEL ADVISORS LLC | 1 | 33.8K | 77.2K | -43.4K | -56.2% | 0.0% | Reduced | 41 |
| Centiva Capital | 4 | 44.0K | 24.7K | +19.3K | +78.3% | 0.0% | Increased | 37 |
| Squarepoint Ops LLC | 2 | 11.2K | 20.6K | -9.5K | -45.9% | 0.0% | Reduced | 35 |
| MARSHALL WACE, LLP | 2 | 405.7K | 464.4K | -58.7K | -12.6% | 0.0% | Reduced | 28 |
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.