IRWD Ironwood Pharmaceuticals, Inc.
Ironwood Pharmaceuticals, Inc. (IRWD) 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 |
|---|---|---|---|---|---|---|
| Farallon Capital Management Event Value | Sold Out | -13.0K | -100.0% | $54.7K | 0.0% | 60 |
| MILLENNIUM MANAGEMENT LLC | Sold Out | -457.1K | -100.0% | $1.9M | 0.0% | 59 |
| Gotham Asset Management, LLC Quant Value | Sold Out | -10.7K | -100.0% | $44.9K | 0.0% | 54 |
| CITADEL ADVISORS LLC Quant | Increased | +384.1K | +324.8% | $1.6M | 0.0% | 54 |
| D. E. Shaw & Co., Inc. Quant | Increased | +75.0K | +156.4% | $315.6K | 0.0% | 52 |
| Brevan Howard Capital Management Macro | Sold Out | -14.2K | -100.0% | $59.9K | 0.0% | 49 |
| Graham Capital Management Quant Macro | Sold Out | -30.8K | -100.0% | $129.8K | 0.0% | 49 |
| Squarepoint Ops LLC Quant | Increased | +34.2K | +104.3% | $143.8K | 0.0% | 48 |
| Y-Intercept Quant | Sold Out | -13.5K | -100.0% | $56.7K | 0.0% | 48 |
| Qube Research & Technologies Ltd Quant | Reduced | -1.24M | -78.1% | $5.2M | 0.0% | 46 |
Most significant buyers
By move score, not size.
- CITADEL ADVISORS LLC
- D. E. Shaw & Co., Inc.
- Squarepoint Ops LLC
- Quantbot Technologies
- Engineers Gate
Most significant sellers
By move score, not size.
- Farallon Capital Management
- MILLENNIUM MANAGEMENT LLC
- Gotham Asset Management, LLC
- Brevan Howard Capital Management
- Graham Capital Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Farallon Capital Management | 1 | 0 | 13.0K | -13.0K | -100.0% | 0.0% | Sold Out | 60 |
| MILLENNIUM MANAGEMENT LLC | 2 | 0 | 457.1K | -457.1K | -100.0% | 0.0% | Sold Out | 59 |
| Gotham Asset Management, LLC | 2 | 0 | 10.7K | -10.7K | -100.0% | 0.0% | Sold Out | 54 |
| CITADEL ADVISORS LLC | 1 | 502.4K | 118.3K | +384.1K | +324.8% | 0.0% | Increased | 54 |
| D. E. Shaw & Co., Inc. | 1 | 122.9K | 47.9K | +75.0K | +156.4% | 0.0% | Increased | 52 |
| Brevan Howard Capital Management | 3 | 0 | 14.2K | -14.2K | -100.0% | 0.0% | Sold Out | 49 |
| Graham Capital Management | 3 | 0 | 30.8K | -30.8K | -100.0% | 0.0% | Sold Out | 49 |
| Squarepoint Ops LLC | 2 | 66.9K | 32.7K | +34.2K | +104.3% | 0.0% | Increased | 48 |
| Y-Intercept | 4 | 0 | 13.5K | -13.5K | -100.0% | 0.0% | Sold Out | 48 |
| Qube Research & Technologies Ltd | 2 | 348.0K | 1.6M | -1.24M | -78.1% | 0.0% | Reduced | 46 |
| Walleye Capital | 3 | 1 | 225.1K | -225.1K | -100.0% | 0.0% | Reduced | 45 |
| Quantbot Technologies | 4 | 4.2K | 756 | +3.4K | +453.8% | 0.0% | Increased | 39 |
| Armistice Capital | 3 | 13.9M | 15.0M | -1.10M | -7.3% | 1.6% | Reduced | 34 |
| Winton Group | 4 | 84.2K | 241.7K | -157.6K | -65.2% | 0.0% | Reduced | 34 |
| TWO SIGMA INVESTMENTS, LP | 2 | 4.6M | 5.8M | -1.29M | -22.1% | 0.0% | Reduced | 33 |
| Schonfeld Strategic Advisors | 3 | 28.4K | 58.4K | -29.9K | -51.3% | 0.0% | Reduced | 33 |
| Man Group | 3 | 392.1K | 540.9K | -148.7K | -27.5% | 0.0% | Reduced | 28 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 8.0M | 8.1M | -67.8K | -0.8% | 0.0% | Reduced | 28 |
| MARSHALL WACE, LLP | 2 | 4.3M | 4.5M | -235.0K | -5.2% | 0.0% | Reduced | 27 |
| AQR Capital Management | 3 | 6.5M | 7.5M | -1.07M | -14.2% | 0.0% | Reduced | 25 |
| Engineers Gate | 4 | 98.1K | 79.9K | +18.2K | +22.8% | 0.0% | Increased | 23 |
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.