PTCT PTC Therapeutics, Inc.
PTC Therapeutics, Inc. (PTCT) 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 |
|---|---|---|---|---|---|---|
| Armistice Capital Long/Short Healthcare | Reduced | -1.00M | -48.4% | $81.8M | 2.4% | 63 |
| Woodline Partners LP Long/Short | Sold Out | -745.0K | -100.0% | $60.8M | 0.0% | 61 |
| MILLENNIUM MANAGEMENT LLC | New | +46.5K | — | $3.8M | 0.0% | 59 |
| Verition Fund Management Event Long/Short | New | +15.0K | — | $1.2M | 0.0% | 56 |
| Quadrature Capital Quant | New | +44.0K | — | $3.6M | 0.0% | 55 |
| CITADEL ADVISORS LLC Quant | Increased | +362.6K | +94.1% | $29.6M | 0.0% | 54 |
| ExodusPoint Capital Management Long/Short Quant | New | +57.3K | — | $4.7M | 0.0% | 54 |
| Balyasny Asset Management L.P. | Reduced | -440.0K | -95.5% | $35.9M | 0.0% | 54 |
| Walleye Capital Long/Short Quant | New | +19.5K | — | $1.6M | 0.0% | 53 |
| Capstone Investment Advisors Quant Macro | New | +5.9K | — | $479.7K | 0.0% | 53 |
Most significant buyers
By move score, not size.
- MILLENNIUM MANAGEMENT LLC
- Verition Fund Management
- Quadrature Capital
- CITADEL ADVISORS LLC
- ExodusPoint Capital Management
Most significant sellers
By move score, not size.
- Armistice Capital
- Woodline Partners LP
- Balyasny Asset Management L.P.
- Palo Alto Investors
- Edgestream Partners
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Armistice Capital | 3 | 1.1M | 2.1M | -1.00M | -48.4% | 2.4% | Reduced | 63 |
| Woodline Partners LP | 2 | 0 | 745.0K | -745.0K | -100.0% | 0.0% | Sold Out | 61 |
| MILLENNIUM MANAGEMENT LLC | 2 | 46.5K | 0 | +46.5K | — | 0.0% | New | 59 |
| Verition Fund Management | 2 | 15.0K | 0 | +15.0K | — | 0.0% | New | 56 |
| Quadrature Capital | 3 | 44.0K | 0 | +44.0K | — | 0.0% | New | 55 |
| CITADEL ADVISORS LLC | 1 | 747.8K | 385.2K | +362.6K | +94.1% | 0.0% | Increased | 54 |
| ExodusPoint Capital Management | 3 | 57.3K | 0 | +57.3K | — | 0.0% | New | 54 |
| Balyasny Asset Management L.P. | 2 | 20.6K | 460.6K | -440.0K | -95.5% | 0.0% | Reduced | 54 |
| Walleye Capital | 3 | 19.5K | 0 | +19.5K | — | 0.0% | New | 53 |
| Capstone Investment Advisors | 3 | 5.9K | 0 | +5.9K | — | 0.0% | New | 53 |
| Hudson Bay Capital Management | 3 | 159.8K | 3.7K | +156.1K | +4253.6% | 0.1% | Increased | 52 |
| Voleon Capital Management | 3 | 6.7K | 0 | +6.7K | — | 0.0% | New | 51 |
| Lighthouse Investment Partners | 3 | 11.2K | 0 | +11.2K | — | 0.0% | New | 51 |
| Cinctive Capital Management | 3 | 7.5K | 0 | +7.5K | — | 0.0% | New | 50 |
| Palo Alto Investors | 2 | 918.8K | 921.6K | -2.8K | -0.3% | 10.8% | Reduced | 49 |
| Edgestream Partners | 4 | 0 | 8.3K | -8.3K | -100.0% | 0.0% | Sold Out | 49 |
| Capital Fund Management | 3 | 13.9K | 121.3K | -107.4K | -88.5% | 0.0% | Reduced | 46 |
| Quantbot Technologies | 4 | 1.4K | 0 | +1.4K | — | 0.0% | New | 45 |
| Aquatic Capital Management | 4 | 83.5K | 19.9K | +63.5K | +318.9% | 0.2% | Increased | 45 |
| TWO SIGMA INVESTMENTS, LP | 2 | 10.7K | 27.1K | -16.5K | -60.7% | 0.0% | Reduced | 43 |
| MARSHALL WACE, LLP | 2 | 704.8K | 460.6K | +244.1K | +53.0% | 0.1% | Increased | 43 |
| Tudor Investment Corporation | 2 | 13.7K | 42.2K | -28.4K | -67.4% | 0.0% | Reduced | 41 |
| Moore Capital Management | 3 | 75.6K | 44.7K | +30.9K | +69.1% | 0.2% | Increased | 41 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 723.5K | 533.3K | +190.2K | +35.7% | 0.1% | Increased | 41 |
| Schonfeld Strategic Advisors | 3 | 147.4K | 318.4K | -171.0K | -53.7% | 0.1% | Reduced | 38 |
| Qube Research & Technologies Ltd | 2 | 311.4K | 513.8K | -202.4K | -39.4% | 0.0% | Reduced | 38 |
| D. E. Shaw & Co., Inc. | 1 | 1.5M | 1.6M | -91.5K | -5.6% | 0.1% | Reduced | 31 |
| Engineers Gate | 4 | 27.3K | 46.2K | -18.9K | -40.9% | 0.0% | Reduced | 29 |
| CenterBook Partners | 4 | 37.8K | 56.8K | -19.0K | -33.5% | 0.2% | Reduced | 29 |
| Rock Springs Capital Management | 3 | 162.3K | 161.8K | +500 | +0.3% | 0.6% | Increased | 25 |
| AQR Capital Management | 3 | 332.3K | 342.1K | -9.9K | -2.9% | 0.0% | Reduced | 20 |
| RTW Investments | 1 | 7.7M | 7.7M | 0 | +0.0% | 5.4% | Unchanged | 50 |
| Tang Capital Management | 2 | 1.5M | 1.5M | 0 | +0.0% | 5.6% | Unchanged | 44 |
| OrbiMed Advisors | 2 | 49.1K | 49.1K | 0 | +0.0% | 0.1% | 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.