Ironwood PharmaceuticalsIRWD
13F holders, Q3 2024 (September 30)221holders −6
35new positions
44sold out
7famous investors
$4.12avg. 13F price*
At the end of Q3 2024, 221 institutions reported holding Ironwood Pharmaceuticals Inc. (IRWD) in their 13F filings, down 6 from Q2 2024. 35 opened new positions and 44 sold out. The largest holders were BlackRock, Inc. ($94.4M), Vanguard Group Inc. ($90.8M) and Sarissa Capital Management LP ($67.5M). 7 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Ironwood Pharmaceuticals Inc.
- CUSIP
- 46333X108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $12.5M |
| Exits | 44 | $51.9M |
All 13F filers, Q2 2024 → Q3 2024: 13,465,929 shares bought and 21,548,426 shares sold, net −8,082,497 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 221 holders
| BlackRock, Inc. | 0.00% | — | 22,919,857 | $94.4M |
| Vanguard Group Inc. | 0.00% | Add +2.2% | 22,038,097 | $90.8M |
| Sarissa Capital Management LP | 16.78% | No change | 16,390,000 | $67.5M |
| Pacer Advisors, Inc. | 0.10% | Add +26.6% | 11,279,822 | $46.5M |
| State Street Corp. | 0.00% | Add +7.3% | 9,919,865 | $40.9M |
| Renaissance Technologies | 0.05% | Add +0.3% | 8,597,198 | $35.4M |
| Armistice Capital, LLC | 0.88% | Add +5.1% | 8,200,000 | $33.8M |
| LSV Asset Management | 0.04% | Reduce -16.8% | 5,051,601 | $20.8M |
| Braidwell LP | 0.79% | No change | 4,438,232 | $18.3M |
| Morgan Stanley | 0.00% | Reduce -11.1% | 4,321,589 | $17.8M |
| Jacobs Levy Equity Management, Inc. | 0.07% | Reduce -2.1% | 4,265,100 | $17.6M |
| Kynam Capital Management, LP | 1.18% | Add +124.5% | 3,685,563 | $15.2M |
| Geode Capital Management, LLC | 0.00% | Reduce -2.3% | 3,293,542 | $13.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +23.7% | 1,904,271 | $7.8M |
| Northern Trust Corp. | 0.00% | Add +2.0% | 1,506,148 | $6.2M |
| Jupiter Asset Management Ltd. | 0.05% | No change | 1,448,435 | $6.0M |
| Two Sigma Advisers, LP | 0.01% | Add +5.1% | 1,260,500 | $5.2M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -21.8% | 1,223,137 | $5.0M |
| Saturn V Capital Management LP | 1.65% | Add +0.6% | 1,120,409 | $4.6M |
| Deutsche Bank AG | 0.00% | Add +1.5% | 1,063,199 | $4.4M |
| Stonepine Capital Management, LLC | 2.60% | Add +1982.8% | 1,000,000 | $4.1M |
| UBS Group AG | 0.00% | Reduce -48.5% | 946,884 | $3.9M |
| Millennium Management | 0.00% | Reduce -30.3% | 925,872 | $3.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -12.5% | 912,778 | $3.8M |
| Man Group plc | 0.01% | Reduce -70.0% | 894,726 | $3.7M |
| Two Sigma Investments, LP | 0.01% | Reduce -2.9% | 890,963 | $3.7M |
| Acadian Asset Management LLC | 0.01% | New | 786,292 | $3.2M |
| Principal Financial Group Inc. | 0.00% | Reduce -7.5% | 735,727 | $3.0M |
| Citadel Advisors | 0.00% | Add +70.3% | 697,426 | $2.9M |
| Royce & Associates LP | 0.02% | Add +10.8% | 662,934 | $2.7M |
| Ameriprise Financial Inc. | 0.00% | Reduce -6.3% | 598,202 | $2.5M |
| Capital Fund Management S.A. | 0.03% | Add +90.2% | 581,359 | $2.4M |
| State of Wisconsin Investment Board | 0.01% | Add +226.6% | 573,426 | $2.4M |
| Qube Research & Technologies Ltd | 0.00% | New | 570,775 | $2.4M |
| AQR Capital Management | 0.00% | Reduce -17.6% | 564,113 | $2.3M |
| Invesco Ltd. | 0.00% | Reduce -68.3% | 527,694 | $2.2M |
| Redwood Investment Management, LLC | 0.19% | Add +12.4% | 534,560 | $2.1M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -16.5% | 463,047 | $1.9M |
| Emerald Advisers, LLC | 0.07% | Reduce -41.9% | 456,770 | $1.9M |
| Parkman Healthcare Partners LLC | 0.24% | Reduce -48.0% | 455,477 | $1.9M |
| Bank of America Corp. | 0.00% | Reduce -41.1% | 419,773 | $1.7M |
| Barclays PLC | 0.00% | Add +111.3% | 416,320 | $1.7M |
| Sei Investments Co. | 0.00% | New | 410,680 | $1.7M |
| Legal & General Group Plc | 0.00% | Reduce -0.1% | 408,922 | $1.7M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -11.8% | 405,354 | $1.7M |
| Rafferty Asset Management, LLC | 0.01% | Add +3.2% | 396,664 | $1.6M |
| Norges Bank | 0.00% | Reduce -71.7% | 394,266 | $1.6M |
| Robeco Institutional Asset Management B.V. | 0.00% | Add +1293.6% | 380,960 | $1.6M |
| Gsa Capital Partners LLP | 0.11% | Add +194.9% | 351,193 | $1.4M |
| Hodges Capital Management Inc. | 0.09% | Reduce -66.6% | 347,500 | $1.4M |
| Rhumbline Advisers | 0.00% | Reduce -7.6% | 337,965 | $1.4M |
| Franklin Resources Inc. | 0.00% | Reduce -2.2% | 313,048 | $1.3M |
| Jane Street Group, LLC | 0.00% | Add +102.7% | 323,638 | $1.3M |
| OMERS ADMINISTRATION Corp | 0.01% | Reduce -3.8% | 320,410 | $1.3M |
| Wedge Capital Management L L P | 0.02% | New | 314,843 | $1.3M |
| Bridgeway Capital Management, LLC | 0.03% | No change | 311,200 | $1.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -83.4% | 306,865 | $1.3M |
| Public Sector Pension Investment Board | 0.01% | Reduce -3.1% | 298,286 | $1.2M |
| Walleye Capital LLC | 0.01% | Add +264.2% | 280,299 | $1.2M |
| Swiss National Bank | 0.00% | No change | 276,700 | $1.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -12.6% | 269,725 | $1.1M |
| D. E. Shaw & Co. | 0.00% | Reduce -36.4% | 244,681 | $1.0M |
| Victory Capital Management Inc. | 0.00% | Reduce -2.0% | 218,009 | $898K |
| Weiss Asset Management LP | 0.03% | New | 216,707 | $893K |
| Alberta Investment Management Corp | 0.01% | No change | 210,731 | $868K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -2.5% | 208,273 | $858K |
| Knott David M Jr | 0.30% | Reduce -44.0% | 207,033 | $853K |
| Emerald Mutual Fund Advisers Trust | 0.04% | Reduce -69.4% | 197,396 | $813K |
| Citigroup Inc. | 0.00% | Add +0.8% | 186,173 | $767K |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -47.7% | 181,593 | $748K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Add +31.8% | 170,811 | $704K |
| FMR LLC | 0.00% | Add +25.1% | 169,681 | $699K |
| Harbor Capital Advisors, Inc. | 0.03% | Add +50.1% | 168,071 | $692K |
| Macquarie Group Ltd. | 0.00% | No change | 167,200 | $689K |
| Alliancebernstein L.P. | 0.00% | No change | 163,070 | $672K |
| Vestcor Inc | 0.02% | Add +37.8% | 159,466 | $657K |
| BNP Paribas Financial Markets | 0.00% | Add +89.0% | 154,660 | $637K |
| Prudential Financial Inc. | 0.00% | Reduce -2.0% | 150,788 | $621K |
| Comerica Bank | 0.00% | Add +246.9% | 150,191 | $619K |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -17.8% | 148,510 | $611K |
| California State Teachers Retirement System | 0.00% | Reduce -1.9% | 135,142 | $557K |
| Dark Forest Capital Management LP | 0.07% | Add +112.7% | 128,414 | $529K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +150.7% | 126,289 | $520K |
| Alps Advisors Inc. | 0.00% | Reduce -5.2% | 117,535 | $484K |
| Siren, L.L.C. | 0.02% | — | 110,532 | $455K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -4.9% | 110,389 | $455K |
| Public Employees Retirement System of Ohio | 0.00% | Add +0.7% | 109,848 | $453K |
| Graham Capital Management, L.P. | 0.02% | New | 107,970 | $445K |
| T. Rowe Price Associates Inc. | 0.00% | Add +1.9% | 103,356 | $426K |
| Kennedy Capital Management LLC | 0.01% | Reduce -1.3% | 102,477 | $422K |
| Cercano Management LLC | 0.01% | New | 101,378 | $418K |
| Inspire Investing, LLC | 0.04% | Add +84.8% | 101,029 | $416K |
| Guggenheim Capital LLC | 0.00% | Add +11.5% | 100,251 | $413K |
| Massachusetts Financial Services Co. | 0.00% | Reduce -2.4% | 99,470 | $410K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +10.5% | 93,260 | $383K |
| Clearline Capital LP | 0.03% | No change | 92,870 | $383K |
| Ensign Peak Advisors, Inc | 0.00% | No change | 85,392 | $352K |
| Profund Advisors LLC | 0.01% | Add +9.3% | 82,369 | $339K |
| Susquehanna International Group, LLP | 0.00% | Add +12.5% | 81,674 | $336K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.0% | 81,171 | $334K |
| MetLife Investment Management, LLC | 0.00% | No change | 80,696 | $332K |
| State of Alaska, Department of Revenue | 0.00% | Reduce -2.3% | 80,217 | $330K |
| STRS Ohio | 0.00% | Reduce -5.4% | 76,600 | $316K |
| Tudor Investment Corporation | 0.00% | New | 75,287 | $310K |
| Louisiana State Employees Retirement System | 0.01% | Reduce -3.4% | 68,000 | $280K |
| Old West Investment Management, LLC | 0.11% | Add +2.3% | 67,961 | $280K |
| Exchange Traded Concepts, LLC | 0.01% | New | 67,691 | $279K |
| Daiwa Securities Group Inc. | 0.00% | Add +21.2% | 67,570 | $278K |
| Jump Financial, LLC | 0.01% | New | 66,189 | $273K |
| Janus Henderson Group PLC | 0.00% | No change | 66,187 | $272K |
| Wells Fargo & Company | 0.00% | Add +2.1% | 64,970 | $268K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -3.9% | 64,874 | $267K |
| US Bancorp \de | 0.00% | Add +0.1% | 62,402 | $257K |
| Handelsbanken Fonder AB | 0.00% | Add +24.2% | 59,455 | $245K |
| Headlands Technologies LLC | 0.03% | Add +92.3% | 55,109 | $227K |
| Virtus Advisers, LLC | 0.11% | No change | 55,075 | $227K |
| EMC Capital Management | 0.15% | Reduce -87.4% | 3,013 | $225K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -29.3% | 54,522 | $225K |
| Sherbrooke Park Advisers LLC | 0.05% | New | 50,701 | $209K |
| Maryland State Retirement & Pension System | 0.00% | No change | 48,771 | $201K |
| Panagora Asset Management Inc. | 0.00% | New | 48,333 | $199K |
| Gallacher Capital Management LLC | 0.09% | Add +61.1% | 48,268 | $199K |
| Voya Investment Management LLC | 0.00% | Reduce -40.7% | 47,765 | $197K |
| Allspring Global Investments Holdings, LLC | 0.00% | Reduce -10.4% | 45,197 | $186K |
| Mariner, LLC | 0.00% | Reduce -43.8% | 45,213 | $186K |
| Yousif Capital Management, LLC | 0.00% | Add +0.8% | 45,154 | $186K |
| Teachers Retirement System of the State of Kentucky | 0.00% | No change | 44,349 | $183K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 44,394 | $183K |
| Intech Investment Management LLC | 0.00% | New | 44,039 | $181K |
| GRIMES & Co WEALTH MANAGEMENT, LLC | 0.00% | No change | 42,675 | $176K |
| Creative Planning | 0.00% | Add +12.7% | 42,151 | $174K |
| New York State Common Retirement Fund | 0.00% | Reduce -94.7% | 41,869 | $173K |
| Amalgamated Bank | 0.00% | Reduce -0.7% | 41,457 | $171K |
| Arizona State Retirement System | 0.00% | Add +4.5% | 41,194 | $170K |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -31.9% | 40,867 | $168K |
| Prairiewood Capital, LLC | 0.07% | No change | 39,306 | $162K |
| ProShare Advisors LLC | 0.00% | Add +24.9% | 38,937 | $160K |
| New York State Teachers Retirement System | 0.00% | No change | 38,500 | $159K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -10.5% | 37,441 | $154K |
| Teacher Retirement System of Texas | 0.00% | Add +15.9% | 35,873 | $148K |
| Gerber, LLC | 0.10% | No change | 34,600 | $143K |
| Oregon Public Employees Retirement Fund | 0.00% | Reduce -2.6% | 33,050 | $136K |
| Broderick Brian C | 0.03% | No change | 33,000 | $136K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +64.5% | 30,723 | $127K |
| State of Wyoming | 0.02% | Reduce -15.1% | 30,379 | $125K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.00% | Reduce -0.3% | 30,047 | $124K |
| Connors Investor Services Inc. | 0.01% | New | 30,000 | $124K |
| Praxis Investment Management Inc. | 0.01% | Add +36.3% | 27,850 | $115K |
| Shell Asset Management Co. | 0.01% | — | 27,809 | $115K |
| PDT Partners, LLC | 0.01% | New | 27,300 | $112K |
| Teza Capital Management LLC | 0.01% | Reduce -24.6% | 27,221 | $112K |
| Captrust Financial Advisors | 0.00% | Reduce -3.2% | 26,741 | $110K |
| E Fund Management Co., Ltd. | 0.01% | Add +9.2% | 25,485 | $105K |
| Public Employees Retirement Association of Colorado | 0.00% | No change | 24,883 | $103K |
| Quent Capital, LLC | 0.01% | No change | 24,500 | $101K |
| Gotham Asset Management | 0.00% | Reduce -60.5% | 23,766 | $98K |
| Amundi | 0.00% | Add +11.5% | 23,090 | $96K |
| Ballentine Partners, LLC | 0.00% | New | 21,541 | $89K |
| Mutual of America Capital Management LLC | 0.00% | Reduce -8.0% | 21,143 | $87K |
| Quantinno Capital Management LP | 0.00% | Add +40.0% | 19,191 | $79K |
| Virtu Financial LLC | 0.00% | New | 18,962 | $78K |
| Verition Fund Management LLC | 0.00% | New | 17,425 | $72K |
| EntryPoint Capital, LLC | 0.04% | Add +57.5% | 16,665 | $69K |
| Pictet Asset Management Holding SA | 0.00% | No change | 16,495 | $68K |
| Raymond James Financial Services Advisors, Inc. | 0.00% | Add +1.7% | 15,584 | $64K |
| Royal Bank of Canada | 0.00% | Add +8.1% | 15,137 | $63K |
| Mercer Global Advisors Inc. | 0.00% | Reduce -7.8% | 15,316 | $62K |
| Axq Capital, LP | 0.02% | New | 14,929 | $62K |
| Legacy Capital Group California, Inc. | 0.02% | New | 14,307 | $59K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 13,773 | $57K |
| Bank of Montreal | 0.00% | Reduce -85.5% | 13,669 | $55K |
| Farallon Capital Management, L.L.C. | 0.00% | No change | 13,000 | $54K |
| Diversified Trust Co. | 0.00% | New | 12,574 | $52K |
| Wolverine Trading, LLC | 0.00% | New | 12,747 | $51K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -67.0% | 12,172 | $50K |
| Mackenzie Financial Corp. | 0.00% | No change | 10,460 | $43K |
| HSBC Holdings PLC | 0.00% | Reduce -57.3% | 11,058 | $43K |
| Simplex Trading, LLC | 0.00% | New | 8,827 | $36K |
| KBC Group NV | 0.00% | Add +59.3% | 8,593 | $35K |
| PNC Financial Services Group, Inc. | 0.00% | Add +52.3% | 7,230 | $30K |
| GAMMA Investing LLC | 0.00% | Reduce -41.4% | 6,170 | $25K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +21.7% | 5,777 | $23K |
| Allworth Financial LP | 0.00% | Add +518.9% | 5,285 | $22K |
| Cwm, LLC | 0.00% | Reduce -40.3% | 3,942 | $16K |
| Versant Capital Management, Inc | 0.00% | Add +1652.5% | 2,804 | $12K |
| Nisa Investment Advisors, LLC | 0.00% | Add +56.7% | 2,209 | $9K |
| WealthCollab, LLC | 0.00% | New | 1,634 | $7K |
| Fifth Third Bancorp | 0.00% | Reduce -3.5% | 1,442 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -95.3% | 1,424 | $6K |
| AdvisorNet Financial, Inc | 0.00% | New | 1,310 | $5K |
| Planning Capital Management Corp | 0.00% | No change | 1,303 | $5K |
| UMB Bank, n.a. | 0.00% | Add +547.1% | 1,100 | $5K |
| Group One Trading LLC | 0.00% | New | 1,060 | $4K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 1,043 | $4K |
| Smartleaf Asset Management LLC | 0.00% | Add +218.6% | 1,029 | $4K |
| Quadrant Capital Group LLC | 0.00% | Reduce -62.1% | 767 | $3K |
| Bessemer Group Inc. | 0.00% | New | 547 | $2K |
| Lindbrook Capital, LLC | 0.00% | Reduce -24.2% | 475 | $2K |
| Sterling Capital Management LLC | 0.00% | — | 373 | $2K |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 270 | $1K |
| Global Retirement Partners, LLC | 0.00% | New | 238 | $981 |
| Bell Investment Advisors, Inc | 0.00% | No change | 216 | $890 |
| Parallel Advisors, LLC | 0.00% | New | 199 | $820 |
| Osaic Holdings, Inc. | 0.00% | Reduce -90.9% | 135 | $556 |
| Principal Securities, Inc. | 0.00% | Reduce -28.7% | 134 | $552 |
| True Wealth Design, LLC | 0.00% | New | 112 | $462 |
| Farmers & Merchants Investments Inc. | 0.00% | No change | 101 | $416 |
| City State Bank | 0.00% | No change | 100 | $412 |
| Rothschild Investment LLC | 0.00% | Add +185.7% | 100 | $412 |
| Earned Wealth Advisors, LLC | 0.00% | New | 87 | $358 |
| Clean Yield Group | 0.00% | No change | 85 | $350 |
| Private Wealth Management Group, LLC | 0.00% | Reduce -86.1% | 82 | $338 |
| Farther Finance Advisors, LLC | 0.00% | Reduce -61.5% | 82 | $338 |
| Huntington National Bank | 0.00% | New | 70 | $288 |
| Arax Advisory Partners | 0.00% | New | 63 | $260 |
| MassMutual Private Wealth & Trust, FSB | 0.00% | Reduce -38.9% | 44 | $181 |
| Abound Wealth Management | 0.00% | No change | 34 | $141 |
| Mendota Financial Group, LLC | 0.00% | New | 11 | $46 |
| Natixis | 0.00% | No change | 2 | $8 |
| Hemington Wealth Management | 0.00% | New | 34 | $0 |
| Covestor Ltd | 0.00% | Add +60.0% | 16 | $0 |
"% of holder's portfolio" is IRWD's weight in each manager's 13F, not the share of Ironwood Pharmaceuticals Inc. the manager owns.