Ironwood PharmaceuticalsIRWD
13F holders, Q1 2024 (March 31)261holders
8famous investors
$8.71avg. 13F price*
At the end of Q1 2024, 261 institutions reported holding Ironwood Pharmaceuticals Inc. (IRWD) in their 13F filings. The largest holders were BlackRock Inc. ($210.4M), Vanguard Group Inc. ($170.0M) and Sarissa Capital Management LP ($142.8M). 8 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Joel Greenblatt (0.0% of Gotham Asset Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Ironwood Pharmaceuticals Inc.
- CUSIP
- 46333X108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 53 | $162.3M |
| Exits | 42 | $114.5M |
Ownership 261 holders
| BlackRock Inc. | 0.00% | Reduce -7.0% | 24,157,768 | $210.4M |
| Vanguard Group Inc. | 0.00% | Add +21.8% | 19,521,366 | $170.0M |
| Sarissa Capital Management LP | 24.97% | No change | 16,390,000 | $142.8M |
| State Street Corp. | 0.01% | Add +20.7% | 13,917,111 | $121.2M |
| Pacer Advisors, Inc. | 0.15% | New | 7,206,187 | $62.8M |
| Renaissance Technologies | 0.10% | Add +7.6% | 7,099,801 | $61.8M |
| LSV Asset Management | 0.11% | Reduce -9.3% | 6,151,001 | $53.6M |
| Armistice Capital, LLC | 1.25% | Reduce -5.3% | 5,400,000 | $47.0M |
| Jacobs Levy Equity Management, Inc. | 0.16% | Add +40.8% | 4,235,580 | $36.9M |
| Braidwell LP | 1.71% | New | 3,489,843 | $30.4M |
| Geode Capital Management, LLC | 0.00% | Add +2.2% | 3,147,158 | $27.4M |
| UBS Group AG | 0.01% | Add +579.9% | 3,027,715 | $26.4M |
| Man Group plc | 0.07% | Add +109.4% | 2,985,313 | $26.0M |
| Brown Capital Management LLC | 0.42% | Reduce -27.2% | 2,700,705 | $23.5M |
| Morgan Stanley | 0.00% | Add +24.7% | 2,678,116 | $23.3M |
| Nuveen Asset Management, LLC | 0.00% | Add +0.4% | 1,843,243 | $16.1M |
| Kynam Capital Management, LP | 1.57% | New | 1,625,000 | $14.2M |
| Northern Trust Corp. | 0.00% | Reduce -3.5% | 1,532,517 | $13.3M |
| Deutsche Bank AG | 0.01% | Add +234.5% | 1,517,726 | $13.2M |
| Jupiter Asset Management Ltd. | 0.12% | Reduce -34.8% | 1,479,964 | $12.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +8.1% | 1,392,403 | $12.1M |
| Glenmede Trust Co. NA | 0.06% | Add +7.6% | 1,390,627 | $12.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +27.6% | 1,379,662 | $12.0M |
| Schonfeld Strategic Advisors LLC | 0.09% | Add +1698.2% | 1,312,244 | $11.4M |
| Two Sigma Advisers, LP | 0.03% | Reduce -4.2% | 1,285,000 | $11.2M |
| Two Sigma Investments, LP | 0.03% | Add +102.8% | 1,188,233 | $10.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -18.5% | 1,185,225 | $10.3M |
| Bank of New York Mellon Corp | 0.00% | Reduce -8.0% | 1,037,418 | $9.0M |
| Rafferty Asset Management, LLC | 0.03% | Add +45.0% | 1,017,819 | $8.9M |
| First Eagle Investment Management, LLC | 0.02% | Add +10.5% | 1,002,225 | $8.7M |
| Citigroup Inc. | 0.01% | Add +161.8% | 947,710 | $8.3M |
| Saturn V Capital Management LP | 3.30% | New | 944,912 | $8.2M |
| Bank of America Corp. | 0.00% | Add +32.0% | 906,289 | $7.9M |
| Hodges Capital Management Inc. | 0.48% | New | 863,500 | $7.5M |
| Parkman Healthcare Partners LLC | 0.91% | Add +604.5% | 850,000 | $7.4M |
| Citadel Advisors | 0.01% | Add +68.2% | 833,274 | $7.3M |
| Emerald Advisers, LLC | 0.29% | New | 822,749 | $7.2M |
| New York State Common Retirement Fund | 0.01% | Add +2.2% | 809,002 | $7.0M |
| Principal Financial Group Inc. | 0.00% | Add +0.4% | 804,900 | $7.0M |
| Russell Investments Group, Ltd. | 0.01% | Add +244.8% | 777,847 | $6.8M |
| Norges Bank | 0.00% | Reduce -20.3% | 649,179 | $5.7M |
| Emerald Mutual Fund Advisers Trust | 0.29% | New | 644,153 | $5.6M |
| Checkpoint Capital L.P. | 3.60% | Reduce -29.7% | 618,528 | $5.4M |
| BNP Paribas Financial Markets | 0.01% | Add +6.9% | 612,600 | $5.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -22.2% | 612,407 | $5.3M |
| Royce & Associates LP | 0.05% | Add +97.8% | 591,004 | $5.1M |
| Marshall Wace, LLP | 0.01% | Add +98.9% | 572,500 | $5.0M |
| Invesco Ltd. | 0.00% | Reduce -7.4% | 516,963 | $4.5M |
| AQR Capital Management | 0.01% | Add +474.3% | 469,742 | $4.1M |
| Millennium Management | 0.00% | Reduce -52.5% | 461,444 | $4.0M |
| 13D Management LLC | 2.23% | Add +14.0% | 419,284 | $3.7M |
| Legal & General Group Plc | 0.00% | Add +0.9% | 396,607 | $3.5M |
| Redwood Investment Management, LLC | 0.30% | Add +29.8% | 366,691 | $3.2M |
| Rhumbline Advisers | 0.00% | Reduce -20.8% | 363,124 | $3.2M |
| Bridgeway Capital Management, LLC | 0.06% | New | 328,000 | $2.9M |
| American Century Companies Inc. | 0.00% | Reduce -57.9% | 327,133 | $2.8M |
| Franklin Resources Inc. | 0.00% | Add +989.4% | 311,340 | $2.7M |
| Edgestream Partners, L.P. | 0.13% | New | 296,287 | $2.6M |
| Susquehanna International Group, LLP | 0.00% | Add +68.6% | 291,600 | $2.5M |
| Barclays PLC | 0.00% | Reduce -47.5% | 290,245 | $2.5M |
| D. E. Shaw & Co. | 0.00% | Add +26.0% | 288,653 | $2.5M |
| Squarepoint Ops LLC | 0.01% | Add +225.9% | 284,760 | $2.5M |
| Public Sector Pension Investment Board | 0.02% | Reduce -1.2% | 281,618 | $2.5M |
| Swiss National Bank | 0.00% | No change | 276,700 | $2.4M |
| Knott David M Jr | 0.85% | New | 276,000 | $2.4M |
| QRG Capital Management, Inc. | 0.03% | Reduce -3.4% | 250,227 | $2.2M |
| Foundry Partners, LLC | 0.11% | New | 240,573 | $2.1M |
| Mercer Global Advisors Inc. | 0.01% | Reduce -1.8% | 236,223 | $2.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | Reduce -6.2% | 236,000 | $2.1M |
| State Board of Administration of Florida Retirement System | 0.00% | Add +339.4% | 195,057 | $2.1M |
| Alberta Investment Management Corp | 0.02% | No change | 210,731 | $1.8M |
| Driehaus Capital Management LLC | 0.02% | Reduce -86.7% | 210,054 | $1.8M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 0.84% | New | 208,200 | $1.8M |
| Credit Suisse AG/ | 0.00% | Reduce -96.5% | 197,789 | $1.7M |
| State of New Jersey Common Pension Fund D | 0.00% | Reduce -28.3% | 185,503 | $1.6M |
| Gsa Capital Partners LLP | 0.12% | New | 176,172 | $1.5M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +6.8% | 175,777 | $1.5M |
| Hillsdale Investment Management Inc. | 0.12% | Add +8.8% | 171,200 | $1.5M |
| Macquarie Group Ltd. | 0.00% | No change | 167,200 | $1.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -2.3% | 163,070 | $1.4M |
| Profund Advisors LLC | 0.05% | Add +35.5% | 161,855 | $1.4M |
| Prudential Financial Inc. | 0.00% | Reduce -1.3% | 156,458 | $1.4M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +3.8% | 152,492 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -4.1% | 150,515 | $1.3M |
| Sio Capital Management, LLC | 0.45% | New | 149,400 | $1.3M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -95.3% | 143,771 | $1.3M |
| California State Teachers Retirement System | 0.00% | Reduce -4.4% | 142,018 | $1.2M |
| Phocas Financial Corp. | 0.14% | New | 141,427 | $1.2M |
| Y-Intercept (Hong Kong) Ltd | 0.09% | New | 134,616 | $1.2M |
| Advantage Alpha Capital Partners LP | 0.21% | Add +4.2% | 130,966 | $1.1M |
| Trexquant Investment LP | 0.02% | New | 129,475 | $1.1M |
| Victory Capital Management Inc. | 0.00% | Reduce -97.0% | 127,691 | $1.1M |
| Engineers Gate Manager LP | 0.03% | Add +16.8% | 125,567 | $1.1M |
| State of Wisconsin Investment Board | 0.00% | Add +2.3% | 122,658 | $1.1M |
| Texas Permanent School Fund Corp. | 0.01% | Add +1.3% | 120,245 | $1.0M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.6% | 119,192 | $1.0M |
| Kennedy Capital Management LLC | 0.02% | Add +10.1% | 116,543 | $1.0M |
| Artal Group S.A. | 0.02% | No change | 110,532 | $963K |
| Alps Advisors Inc. | 0.01% | Add +2.9% | 110,406 | $962K |
| Public Employees Retirement System of Ohio | 0.00% | Reduce -3.9% | 109,623 | $955K |
"% of holder's portfolio" is IRWD's weight in each manager's 13F, not the share of Ironwood Pharmaceuticals Inc. the manager owns.