IRONWOOD PHARMACEUTICALS INC IRWD
CIK 0001446847 · CUSIP 46333X108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $102.06M 23,037,335 shares | 0.00% | +117.48K(+0.5%)Added | SEC filing ↗ Feb 7, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $86.56M 19,538,555 shares | 0.00% | -2.50M(-11.3%)Reduced | SEC filing ↗ Feb 11, 2025 | ▾ |
| 03 | Sarissa Capital Management LP CIK 1577524 · View history | $72.61M 16,390,000 shares | 22.49% | 0(0.0%)Unchanged | SEC filing ↗ Feb 14, 2025 | ▾ |
| 04 | Pacer Advisors, Inc. CIK 1616667 · View history | $51.97M 11,730,771 shares | 0.11% | +450.95K(+4.0%)Added | SEC filing ↗ Jan 22, 2025 | ▾ |
| 05 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $41.94M 9,468,000 shares | 0.98% | +1.27M(+15.5%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 06 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $40.16M 9,066,241 shares | 0.06% | +469.04K(+5.5%)Added | SEC filing ↗ Feb 13, 2025 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $36.90M 8,328,817 shares | 0.00% | -1.59M(-16.0%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 08 | BRAIDWELL LP CIK 1920938 · View history | $24.10M 5,440,277 shares | 0.71% | +1.00M(+22.6%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 09 | Kynam Capital Management, LP CIK 1907884 · View history | $20.76M 4,685,563 shares | 1.37% | +1.00M(+27.1%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 10 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $18.08M 4,081,501 shares | 0.04% | -970.10K(-19.2%)Reduced | SEC filing ↗ Feb 13, 2025 | ▾ |
| 11 | MORGAN STANLEY CIK 895421 · Amended · View history | $17.83M 4,024,693 shares | 0.00% | -296.90K(-6.9%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 12 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $16.05M 3,623,026 shares | 0.06% | -642.07K(-15.1%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $14.65M 3,306,570 shares | 0.00% | +13.03K(+0.4%)Added | SEC filing ↗ Feb 12, 2025 | ▾ |
| 14 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $9.66M 2,180,443 shares | 0.01% | +1.25M(+135.5%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 15 | UBS Group AG CIK 1610520 · View history | $9.65M 2,179,261 shares | 0.00% | +1.23M(+130.2%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $8.79M 1,983,240 shares | 0.00% | +78.97K(+4.1%)Added | SEC filing ↗ Feb 6, 2025 | ▾ |
| 17 | NORTHERN TRUST CORP CIK 73124 · View history | $7.20M 1,625,110 shares | 0.00% | +118.96K(+7.9%)Added | SEC filing ↗ Feb 14, 2025 | ▾ |
| 18 | DEUTSCHE BANK AG\ CIK 948046 · Amended · View history | $6.94M 1,567,535 shares | 0.00% | +504.34K(+47.4%)Added | SEC filing ↗ Jun 30, 2025 | ▾ |
| 19 | TWO SIGMA ADVISERS, LP CIK 1478735 · View history | $5.47M 1,234,000 shares | 0.01% | -26.50K(-2.1%)Reduced | SEC filing ↗ Feb 14, 2025 | ▾ |
| 20 | JUPITER ASSET MANAGEMENT LTD CIK 1215838 · View history | $5.42M 1,223,275 shares | 0.05% | -225.16K(-15.5%)Reduced | SEC filing ↗ Feb 10, 2025 | ▾ |
Showing 20 / 224 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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