IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 205 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2020. The put-call ratio across all filers is 0.02 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $669,285 | +77.2% | 69,500 | +95.8% | 0.04% | +80.0% |
| Q2 2023 | $377,720 | -19.0% | 35,500 | -19.9% | 0.02% | -24.2% |
| Q1 2023 | $466,036 | +2119.2% | 44,300 | +2231.6% | 0.03% | +1550.0% |
| Q2 2022 | $21,000 | -80.7% | 1,900 | -78.1% | 0.00% | -80.0% |
| Q1 2022 | $109,000 | +505.6% | 8,688 | +507.1% | 0.01% | +900.0% |
| Q2 2021 | $18,000 | +260.0% | 1,431 | +138.5% | 0.00% | 0.0% |
| Q3 2020 | $5,000 | -72.2% | 600 | -66.6% | 0.00% | -50.0% |
| Q2 2020 | $18,000 | +1700.0% | 1,796 | +1022.5% | 0.00% | +100.0% |
| Q1 2020 | $1,000 | -98.7% | 160 | -97.2% | 0.00% | -87.5% |
| Q4 2019 | $76,000 | +40.7% | 5,749 | -8.7% | 0.01% | +60.0% |
| Q3 2019 | $54,000 | +1.9% | 6,300 | +126.7% | 0.01% | +25.0% |
| Q2 2018 | $53,000 | -3.6% | 2,779 | -42.2% | 0.00% | -55.6% |
| Q4 2015 | $55,000 | +400.0% | 4,808 | +337.1% | 0.01% | +350.0% |
| Q3 2015 | $11,000 | -91.9% | 1,100 | -90.3% | 0.00% | -91.7% |
| Q2 2015 | $136,000 | +615.8% | 11,306 | +842.2% | 0.02% | +380.0% |
| Q1 2015 | $19,000 | +111.1% | 1,200 | +100.0% | 0.01% | +66.7% |
| Q4 2014 | $9,000 | -96.8% | 600 | -96.7% | 0.00% | -93.3% |
| Q2 2014 | $282,000 | +1384.2% | 18,400 | +982.4% | 0.04% | +400.0% |
| Q4 2013 | $19,000 | – | 1,700 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| HealthInvest Partners AB | 1,520,000 | $19,562,000 | 18.54% |
| Sarissa Capital Management LP | 16,390,000 | $210,939,000 | 16.77% |
| Healthcare Value Capital, LLC | 200,000 | $2,574,000 | 5.13% |
| Camber Capital Management LP | 7,500,000 | $96,525,000 | 3.25% |
| 13D Management LLC | 650,455 | $8,371,000 | 2.88% |
| BRIDGER MANAGEMENT, LLC | 2,035,114 | $26,192,000 | 2.44% |
| Brown Capital Management | 18,484,759 | $237,899,000 | 1.80% |
| Healthcare Value Capital, LLC | 50,000 | $644,000 | 1.28% |
| Zebra Capital Management LLC | 53,359 | $687,000 | 0.80% |
| PRICE MICHAEL F | 520,000 | $6,692,000 | 0.74% |