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 | $555 | -9.5% | 57,603 | 0.0% | 0.01% | 0.0% |
| Q2 2023 | $613 | -5.3% | 57,603 | -6.3% | 0.01% | -16.7% |
| Q1 2023 | $647 | -20.5% | 61,500 | -6.3% | 0.01% | -14.3% |
| Q4 2022 | $814 | -99.9% | 65,661 | 0.0% | 0.01% | 0.0% |
| Q3 2022 | $680,000 | -17.8% | 65,661 | -8.4% | 0.01% | -12.5% |
| Q2 2022 | $827,000 | +174.8% | 71,693 | +199.5% | 0.01% | +300.0% |
| Q1 2022 | $301,000 | -49.8% | 23,936 | -53.5% | 0.00% | 0.0% |
| Q4 2021 | $600,000 | +77.5% | 51,502 | +99.3% | 0.00% | -33.3% |
| Q3 2021 | $338,000 | -4.2% | 25,843 | -5.8% | 0.00% | 0.0% |
| Q2 2021 | $353,000 | +39.0% | 27,434 | +21.0% | 0.00% | -70.0% |
| Q1 2021 | $254,000 | -10.6% | 22,676 | -9.1% | 0.01% | -9.1% |
| Q4 2020 | $284,000 | +27.4% | 24,934 | +0.5% | 0.01% | +10.0% |
| Q3 2020 | $223,000 | -15.2% | 24,805 | -2.8% | 0.01% | -16.7% |
| Q2 2020 | $263,000 | -5.4% | 25,520 | -7.4% | 0.01% | +71.4% |
| Q1 2020 | $278,000 | -25.1% | 27,556 | -1.2% | 0.01% | 0.0% |
| Q4 2019 | $371,000 | +58.5% | 27,879 | +2.2% | 0.01% | +40.0% |
| Q3 2019 | $234,000 | -22.8% | 27,282 | -1.5% | 0.01% | -28.6% |
| Q2 2019 | $303,000 | +5.2% | 27,687 | +30.1% | 0.01% | 0.0% |
| Q1 2019 | $288,000 | +36.5% | 21,283 | +4.3% | 0.01% | +16.7% |
| Q4 2018 | $211,000 | -47.9% | 20,404 | -3.6% | 0.01% | -40.0% |
| Q2 2018 | $405,000 | +45.7% | 21,156 | +17.4% | 0.01% | +42.9% |
| Q1 2018 | $278,000 | +1.5% | 18,014 | -1.4% | 0.01% | 0.0% |
| Q4 2017 | $274,000 | +1.5% | 18,278 | +6.6% | 0.01% | -12.5% |
| Q3 2017 | $270,000 | -17.2% | 17,141 | -0.8% | 0.01% | -27.3% |
| Q2 2017 | $326,000 | +20.3% | 17,280 | +9.0% | 0.01% | -15.4% |
| Q1 2017 | $271,000 | +11.5% | 15,859 | -0.1% | 0.01% | +18.2% |
| Q4 2016 | $243,000 | +12.0% | 15,872 | +16.0% | 0.01% | -15.4% |
| Q3 2016 | $217,000 | +19.2% | 13,685 | +0.1% | 0.01% | +18.2% |
| Q2 2016 | $182,000 | +25.5% | 13,668 | +3.0% | 0.01% | -21.4% |
| Q1 2016 | $145,000 | +3.6% | 13,271 | +9.9% | 0.01% | -17.6% |
| Q4 2015 | $140,000 | +1.4% | 12,073 | -9.0% | 0.02% | +21.4% |
| Q3 2015 | $138,000 | -12.1% | 13,260 | +1.8% | 0.01% | -6.7% |
| Q2 2015 | $157,000 | -19.1% | 13,030 | +7.4% | 0.02% | -37.5% |
| Q1 2015 | $194,000 | +8.4% | 12,136 | +4.0% | 0.02% | -14.3% |
| Q4 2014 | $179,000 | +18.5% | 11,671 | +0.1% | 0.03% | +27.3% |
| Q3 2014 | $151,000 | -15.6% | 11,656 | -0.0% | 0.02% | -18.5% |
| Q2 2014 | $179,000 | +32.6% | 11,660 | +6.7% | 0.03% | +17.4% |
| Q1 2014 | $135,000 | – | 10,929 | – | 0.02% | – |
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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% |