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 | $94.43M 22,919,857 shares | 0.00% | — | SEC filing ↗ Nov 13, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $90.80M 22,038,097 shares | 0.00% | +474.68K(+2.2%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 03 | Sarissa Capital Management LP CIK 1577524 · View history | $67.53M 16,390,000 shares | 16.78% | 0(0.0%)Unchanged | SEC filing ↗ Nov 14, 2024 | ▾ |
| 04 | Pacer Advisors, Inc. CIK 1616667 · View history | $46.47M 11,279,822 shares | 0.10% | +2.37M(+26.6%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $40.87M 9,919,865 shares | 0.00% | +677.02K(+7.3%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 06 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $35.42M 8,597,198 shares | 0.05% | +25.30K(+0.3%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 07 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $33.78M 8,200,000 shares | 0.88% | +400.00K(+5.1%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 08 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $20.81M 5,051,601 shares | 0.04% | -1.02M(-16.8%)Reduced | SEC filing ↗ Nov 12, 2024 | ▾ |
| 09 | BRAIDWELL LP CIK 1920938 · View history | $18.29M 4,438,232 shares | 0.52% | 0(0.0%)Unchanged | SEC filing ↗ Nov 14, 2024 | ▾ |
| 10 | MORGAN STANLEY CIK 895421 · Amended · View history | $17.80M 4,321,589 shares | 0.00% | -539.24K(-11.1%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 11 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $17.57M 4,265,100 shares | 0.07% | -93.20K(-2.1%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 12 | Kynam Capital Management, LP CIK 1907884 · View history | $15.18M 3,685,563 shares | 1.18% | +2.04M(+124.5%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $13.57M 3,293,542 shares | 0.00% | -78.78K(-2.3%)Reduced | SEC filing ↗ Nov 12, 2024 | ▾ |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $7.85M 1,904,271 shares | 0.00% | +364.84K(+23.7%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 15 | NORTHERN TRUST CORP CIK 73124 · View history | $6.21M 1,506,148 shares | 0.00% | +29.61K(+2.0%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 16 | JUPITER ASSET MANAGEMENT LTD CIK 1215838 · View history | $5.97M 1,448,435 shares | 0.05% | 0(0.0%)Unchanged | SEC filing ↗ Nov 12, 2024 | ▾ |
| 17 | TWO SIGMA ADVISERS, LP CIK 1478735 · View history | $5.19M 1,260,500 shares | 0.01% | +61.50K(+5.1%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 18 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $5.04M 1,223,137 shares | 0.00% | -340.30K(-21.8%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 19 | Saturn V Capital Management LP CIK 1964437 · View history | $4.62M 1,120,409 shares | 1.65% | +6.58K(+0.6%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 20 | DEUTSCHE BANK AG\ CIK 948046 · Amended · View history | $4.38M 1,063,199 shares | 0.00% | +16.06K(+1.5%)Added | SEC filing ↗ Jun 26, 2025 | ▾ |
Showing 20 / 222 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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