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 1364742 · View history | $149.16M 22,877,015 shares | 0.00% | -1.28M(-5.3%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $140.59M 21,563,414 shares | 0.00% | +2.04M(+10.5%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 03 | Sarissa Capital Management LP CIK 1577524 · View history | $106.86M 16,390,000 shares | 18.04% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $60.26M 9,242,841 shares | 0.00% | -4.67M(-33.6%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 05 | Pacer Advisors, Inc. CIK 1616667 · View history | $58.08M 8,907,639 shares | 0.13% | +1.70M(+23.6%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 06 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $55.89M 8,571,898 shares | 0.09% | +1.47M(+20.7%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 07 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $50.86M 7,800,000 shares | 1.33% | +2.40M(+44.4%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 08 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $39.59M 6,071,501 shares | 0.09% | -79.50K(-1.3%)Reduced | SEC filing ↗ Aug 6, 2024 | ▾ |
| 09 | MORGAN STANLEY CIK 895421 · Amended · View history | $31.69M 4,860,828 shares | 0.00% | +2.18M(+81.5%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 10 | BRAIDWELL LP CIK 1920938 · View history | $28.94M 4,438,232 shares | 0.91% | +948.39K(+27.2%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 11 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $28.42M 4,358,298 shares | 0.12% | +122.72K(+2.9%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 12 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $21.99M 3,372,322 shares | 0.00% | +225.16K(+7.2%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 13 | Man Group plc CIK 1637460 · View history | $19.46M 2,984,451 shares | 0.05% | -862(0.0%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 14 | BROWN CAPITAL MANAGEMENT LLC CIK 885062 · View history | $16.83M 2,580,875 shares | 0.34% | -119.83K(-4.4%)Reduced | SEC filing ↗ Aug 12, 2024 | ▾ |
| 15 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $12.08M 1,853,005 shares | 0.00% | +667.78K(+56.3%)Added | SEC filing ↗ Dec 26, 2024 | ▾ |
| 16 | UBS Group AG CIK 1610520 · View history | $12.00M 1,839,799 shares | 0.00% | -1.19M(-39.2%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 17 | Invesco Ltd. CIK 914208 · View history | $10.87M 1,666,766 shares | 0.00% | +1.15M(+222.4%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 18 | Kynam Capital Management, LP CIK 1907884 · View history | $10.71M 1,641,891 shares | 1.12% | +16.89K(+1.0%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 19 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $10.19M 1,563,432 shares | 0.00% | +183.77K(+13.3%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $10.04M 1,539,430 shares | 0.00% | +147.03K(+10.6%)Added | SEC filing ↗ Aug 12, 2024 | ▾ |
Showing 20 / 228 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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