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 | $147 | +75.0% | 15,318 | +92.8% | 0.00% | – |
| Q2 2023 | $84 | -99.9% | 7,946 | +30.7% | 0.00% | – |
| Q2 2022 | $70,000 | +3400.0% | 6,079 | +2740.7% | 0.00% | – |
| Q1 2022 | $2,000 | -99.6% | 214 | -99.5% | 0.00% | -100.0% |
| Q3 2021 | $536,000 | -8.7% | 41,525 | -9.0% | 0.00% | 0.0% |
| Q2 2021 | $587,000 | -17.8% | 45,619 | -28.7% | 0.00% | 0.0% |
| Q1 2021 | $714,000 | +268.0% | 63,937 | +195.5% | 0.00% | – |
| Q3 2020 | $194,000 | -72.1% | 21,640 | -67.9% | 0.00% | -100.0% |
| Q2 2020 | $696,000 | +220.7% | 67,506 | +212.7% | 0.00% | – |
| Q1 2020 | $217,000 | +197.3% | 21,585 | +288.4% | 0.00% | – |
| Q4 2019 | $73,000 | +508.3% | 5,557 | +497.5% | 0.00% | – |
| Q1 2019 | $12,000 | -84.6% | 930 | -87.7% | 0.00% | – |
| Q4 2018 | $78,000 | -22.0% | 7,552 | +38.8% | 0.00% | – |
| Q3 2018 | $100,000 | -83.9% | 5,440 | -86.5% | 0.00% | -100.0% |
| Q1 2018 | $623,000 | +456.2% | 40,430 | +436.3% | 0.03% | +440.0% |
| Q4 2017 | $112,000 | +166.7% | 7,538 | +182.9% | 0.01% | +150.0% |
| Q3 2017 | $42,000 | -71.6% | 2,665 | -66.1% | 0.00% | -66.7% |
| Q2 2017 | $148,000 | +214.9% | 7,860 | +180.7% | 0.01% | +200.0% |
| Q1 2017 | $47,000 | -74.9% | 2,800 | -80.5% | 0.00% | -83.3% |
| Q2 2016 | $187,000 | +9250.0% | 14,324 | +5675.8% | 0.01% | – |
| Q4 2015 | $2,000 | -91.3% | 248 | -88.8% | 0.00% | -100.0% |
| Q3 2015 | $23,000 | +666.7% | 2,218 | +692.1% | 0.00% | – |
| Q2 2015 | $3,000 | -89.3% | 280 | -84.4% | 0.00% | -100.0% |
| Q1 2015 | $28,000 | – | 1,798 | – | 0.00% | – |
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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% |