Ironwood Pharmaceuticals Inc (IRWD) Ownership

3.52 ↑0.00 (0.00%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

BlackRock Inc is the biggest individual institutional holder of Ironwood Pharmaceuticals Inc (IRWD), owning a total of 22.9 million shares. Combined, the top 41 institutional holders of IRWD own 126.29% of the company with a total of 201.2 million shares.

In the latest ownership report on June 30th 2024, the top 41 institutional holders increased their combined ownership of IRWD by 15.2 million shares. 13 institutions bought 22,648,750 total additional shares and increased their ownership by an average of 38.31%. However 7 institutions sold 7,399,105 total shares and decreased their ownership by an average of 12.5%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Ironwood Pharmaceuticals increased by a net total of 15,249,645 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
BlackRock Inc	14.296%	-5.302%	22,877,015	-1,280,753	2024-06-30
Vanguard Group Inc	13.475%	10.461%	21,563,414	2,042,048	2024-06-30
Sarissa Capital Management LP	10.242%	0.000%	16,390,000	0	2024-06-30
Morgan Stanley - Brokerage Accounts	6.075%	81.502%	9,721,656	4,365,424	2024-06-30
State Street Corp	5.776%	-33.587%	9,242,841	-4,674,270	2024-06-30
Pacer Advisors, INC.	5.566%	0.000%	8,907,639	8,907,639	2024-06-30
Renaissance Technologies Corp	5.357%	20.734%	8,571,898	1,472,097	2024-06-30
Armistice Capital, LLC	4.874%	44.444%	7,800,000	2,400,000	2024-06-30
LSV Asset Management	3.794%	-1.293%	6,071,501	-79,500	2024-06-30
BRAIDWELL LP	2.773%	27.176%	4,438,232	948,389	2024-06-30
Jacobs Levy Equity Management, Inc.	2.724%	2.897%	4,358,298	122,718	2024-06-30
Geode Capital Management, LLC	2.107%	7.155%	3,372,322	225,164	2024-06-30
Man Group PLC	1.865%	-0.029%	2,984,451	-862	2024-06-30
Brown Capital Management, LLC	1.613%	-4.437%	2,580,875	-119,830	2024-06-30
JPMorgan Chase & Co	1.158%	56.342%	1,853,005	667,780	2024-06-30
UBS Group AG	1.150%	-39.235%	1,839,799	-1,187,916	2024-06-30
Amvescap Plc.	1.042%	222.415%	1,666,766	1,149,803	2024-06-30
Kynam Capital Management, LP	1.026%	1.039%	1,641,891	16,891	2024-06-30
Goldman Sachs Group Inc	0.977%	13.320%	1,563,432	183,770	2024-06-30
Charles Schwab Investment Management Inc	0.962%	10.559%	1,539,430	147,027	2024-06-30
Northern Trust Corp	0.924%	-3.652%	1,476,543	-55,974	2024-06-30

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
BlackRock Inc	14.296%	-5.302%	22,877,015	-1,280,753	2024-06-30
Vanguard Group Inc	13.475%	10.461%	21,563,414	2,042,048	2024-06-30
Sarissa Capital Management LP	10.242%	0.000%	16,390,000	0	2024-06-30
State Street Corporation	8.712%	20.682%	13,917,111	2,385,023	2024-03-31
Morgan Stanley - Brokerage Accounts	6.075%	81.502%	9,721,656	4,365,424	2024-06-30
State Street Corp	5.776%	-33.587%	9,242,841	-4,674,270	2024-06-30
Pacer Advisors, INC.	5.566%	0.000%	8,907,639	8,907,639	2024-06-30
Renaissance Technologies Corp	5.357%	20.734%	8,571,898	1,472,097	2024-06-30
Armistice Capital, LLC	4.874%	44.444%	7,800,000	2,400,000	2024-06-30
Wellington Management Company LLP	3.960%	-53.686%	6,178,438	-7,161,939	2023-03-31
LSV Asset Management	3.794%	-1.293%	6,071,501	-79,500	2024-06-30
Credit Suisse First Boston (CSFB)	3.531%	24.670%	5,612,113	1,110,544	2023-12-31
BRAIDWELL LP	2.773%	27.176%	4,438,232	948,389	2024-06-30
Jacobs Levy Equity Management, Inc.	2.724%	2.897%	4,358,298	122,718	2024-06-30
Victory Capital Management Inc.	2.658%	-4.133%	4,224,583	-182,149	2023-12-31
Millennium Management LLC	2.568%	121.028%	3,989,942	2,184,767	2022-12-31
Geode Capital Management, LLC	2.107%	7.155%	3,372,322	225,164	2024-06-30
Dimensional Fund Advisors, Inc.	1.939%	-44.140%	3,081,811	-2,435,165	2023-12-31
Man Group PLC	1.865%	-0.029%	2,984,451	-862	2024-06-30
Two Sigma Investments LLC	1.697%	73.836%	2,649,650	1,125,429	2023-06-30
Brown Capital Management, LLC	1.613%	-4.437%	2,580,875	-119,830	2024-06-30
JANE STREET GROUP, LLC	1.234%	1,251.120%	1,925,882	1,783,342	2023-03-31
Royce & Associates, LP	1.214%	12.579%	1,886,247	210,758	2023-03-31
JPMorgan Chase & Co	1.158%	56.342%	1,853,005	667,780	2024-06-30
Nuveen Asset Management, LLC	1.154%	0.377%	1,843,243	6,918	2024-03-31
UBS Group AG	1.150%	-39.235%	1,839,799	-1,187,916	2024-06-30
Balyasny Asset Management LLC	1.081%	77.548%	1,688,013	737,277	2023-06-30
Amvescap Plc.	1.042%	222.415%	1,666,766	1,149,803	2024-06-30
Kynam Capital Management, LP	1.026%	1.039%	1,641,891	16,891	2024-06-30
Bank of New York Mellon Corp	1.067%	-1.752%	1,636,872	-29,193	2022-09-30
New York State Common Retirement Fund	1.063%	-10.476%	1,630,644	-190,812	2022-06-30
Driehaus Capital Management LLC	0.995%	-0.292%	1,582,134	-4,631	2023-12-31
Goldman Sachs Group Inc	0.977%	13.320%	1,563,432	183,770	2024-06-30
Charles Schwab Investment Management Inc	0.962%	10.559%	1,539,430	147,027	2024-06-30
NORGES BANK	0.987%	-49.554%	1,521,628	-1,494,700	2022-12-31
Deutsche Bank AG	0.950%	234.503%	1,517,726	1,064,001	2024-03-31
Adage Capital Partners Gp LLC	0.951%	-38.603%	1,511,789	-950,511	2023-12-31
Putnam Investments LLC	0.985%	-69.175%	1,510,792	-3,390,406	2022-09-30
Jupiter Asset Management Limited	0.927%	-34.805%	1,479,964	-790,078	2024-03-31
Northern Trust Corp	0.924%	-3.652%	1,476,543	-55,974	2024-06-30
Two Sigma Advisers, LLC	0.844%	-27.297%	1,341,800	-503,800	2023-12-31

Mutual Fund Ownership

Pacer US Small Cap Cash Cows 100 ETF is the biggest individual fund holder of Ironwood Pharmaceuticals Inc (IRWD), owning a total of 11 million shares. Combined, the top 45 mutual fund holders of IRWD own 56.89% of the company with a total of 90.3 million shares.

In the latest ownership report on October 31st 2024, the top 45 fund holders increased their combined ownership of IRWD by 91 thousand shares. 2 funds bought 18,832 total additional shares and increased their ownership by an average of 0.43%. However 5 funds sold 110,174 total shares and decreased their ownership by an average of 1.18%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding Ironwood Pharmaceuticals decreased by a net total of -91,342 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Pacer US Small Cap Cash Cows 100 ETF	6.905%	-0.026%	11,049,501	-2,848	2024-10-31
iShares Core S&P Small-Cap ETF	5.622%	0.105%	8,996,638	9,432	2024-10-31
SPDR® S&P Biotech ETF	2.665%	-1.424%	4,264,542	-61,614	2024-10-31
iShares Russell 2000 ETF	2.265%	-0.224%	3,624,118	-8,148	2024-10-31
SPDR® Portfolio S&P 600™ Sm Cap ETF	0.779%	0.760%	1,245,770	9,400	2024-10-31
iShares Biotechnology ETF	0.686%	-0.594%	1,098,233	-6,564	2024-10-31
iShares Russell 2000 Value ETF	0.547%	0.000%	875,442	0	2024-10-31
State St Russell Sm/Mid Cp® Indx NL Cl C	0.517%	-3.611%	827,516	-31,000	2024-10-31
iShares S&P Small-Cap 600 Growth ETF	0.482%	0.000%	771,891	0	2024-10-31
Schwab US Small-Cap ETF™	0.422%	0.000%	675,222	0	2024-10-31

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Pacer US Small Cap Cash Cows 100 ETF	6.905%	-0.026%	11,049,501	-2,848	2024-10-31
iShares Core S&P Small-Cap ETF	5.622%	0.105%	8,996,638	9,432	2024-10-31
Vanguard Health Care Inv	3.977%	-43.328%	6,178,438	-4,723,628	2023-03-31
SPDR® S&P Biotech ETF	2.665%	-1.424%	4,264,542	-61,614	2024-10-31
Vanguard Total Stock Mkt Idx Inv	2.615%	0.000%	4,184,915	0	2024-09-30
Vanguard Instl Ttl Stck Mkt Idx Tr	2.562%	0.749%	3,999,345	29,730	2023-03-31
iShares Russell 2000 ETF	2.265%	-0.224%	3,624,118	-8,148	2024-10-31
Vanguard Small Cap Index	2.127%	-0.293%	3,403,642	-9,995	2024-09-30
Vanguard Strategic Equity Inv	1.441%	7.521%	2,305,565	161,273	2024-09-30
Vanguard Explorer Inv	1.396%	7.538%	2,234,593	156,629	2024-09-30
Vanguard Institutional Extnd Mkt Idx Tr	1.367%	1.520%	2,186,758	32,738	2024-09-30
Vanguard Extended Market Index Investor	1.200%	-0.040%	1,872,195	-749	2023-08-31
Vanguard Small Cap Growth Index Inv	1.168%	-1.486%	1,869,232	-28,192	2024-09-30
Brown Capital Mgmt Small Co Inv	1.115%	0.000%	1,772,312	0	2023-12-31
Fidelity Small Cap Index	0.898%	-2.443%	1,436,567	-35,967	2024-08-31
Putnam Global Health Care A	0.898%	-66.812%	1,376,709	-2,771,510	2022-09-30
Fidelity® Small Cap Index	0.852%	2.806%	1,329,951	36,305	2023-10-31
Glenmede Small Cap Equity Adv	0.798%	0.752%	1,274,572	9,516	2024-06-30
Glenmede Small Cap Equity	0.798%	0.752%	1,274,572	9,516	2024-06-30
Victory Integrity Small-Cap Value A	0.808%	-5.034%	1,264,000	-67,000	2023-12-31
Integrity Small-Cap Value Comp	0.808%	-5.034%	1,264,000	-67,000	2023-12-31
SPDR® Portfolio S&P 600™ Sm Cap ETF	0.779%	0.760%	1,245,770	9,400	2024-10-31
SPDR® Portfolio S&P 600 Sm Cap ETF	0.761%	-0.143%	1,209,385	-1,736	2024-05-30
Invesco Biotechnology & Genome ETF	0.702%	0.000%	1,121,317	0	2024-08-31
iShares Biotechnology ETF	0.686%	-0.594%	1,098,233	-6,564	2024-10-31
iShares Russell 2000 Growth ETF	0.694%	0.497%	1,078,136	5,330	2023-06-21
Argenta-Fund Longer Life Dynamic R Dis	0.657%	0.000%	1,044,578	0	2024-01-31
Avantis® U.S. Small Cap Value ETF	0.656%	0.000%	1,023,518	0	2023-07-29
DFA US Micro Cap I	0.654%	0.000%	1,021,012	0	2023-08-31
Direxion Daily S&P Biotech Bull 3X ETF	0.640%	-0.697%	1,017,819	-7,140	2024-03-31
Vanguard Tax-Managed Small Cap Adm	0.633%	-3.845%	1,013,654	-40,536	2024-09-30
First Eagle US Small Cap Strategy	0.630%	9.415%	1,005,503	86,518	2024-06-30
First Eagle Small Cap Opportunity I	0.630%	0.000%	1,005,503	0	2024-07-31
Avantis US Small Cap Value ETF	0.642%	0.000%	1,001,398	0	2023-09-29
Xtrackers S&P 500 Swap ETF 1C	0.612%	0.000%	977,339	0	2024-09-30
Vanguard Strategic Small-Cap Equity Inv	0.584%	-15.912%	934,895	-176,910	2024-09-30
DFA US Targeted Value I	0.576%	-37.120%	898,740	-530,549	2023-10-31
iShares Russell 2000 Value ETF	0.547%	0.000%	875,442	0	2024-10-31
BlackRock Advantage Small Cap Core Instl	0.556%	1.698%	868,142	14,496	2023-09-30
iShares S&P Small-Cap 600 Value ETF	0.532%	0.000%	830,848	0	2023-12-29
State St Russell Sm/Mid Cp® Indx NL Cl C	0.517%	-3.611%	827,516	-31,000	2024-10-31
Fidelity Extended Market Index	0.508%	-2.245%	812,306	-18,651	2024-09-30
CREF Stock R1	0.505%	0.000%	789,637	0	2024-01-31
iShares S&P Small-Cap 600 Growth ETF	0.482%	0.000%	771,891	0	2024-10-31
Schwab US Small-Cap ETF™	0.422%	0.000%	675,222	0	2024-10-31