What does CUSIP 46333X108 represent in this 13F holders report?

CUSIP 46333X108 is the security identifier for IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock used to aggregate holder disclosures.

How many institutions held IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock in Q4 2022?

248 institutional investors reported IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock for Q4 2022. Use the holders table for investor-level position and value details.

IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD)

CUSIP: 46333X108

Q4 2022 13F Holders as of 31 Dec 2022

Type / Class: Equity / Class A Common Stock
Shares outstanding: 163,317,295
Total 13F shares: 167,942,496
Share change: -1,605,982
Total reported value: $2,080,711,382
Put/Call ratio: 5.1%
Price per share: $12.39
Number of holders: 248
Value change: -$11,969,237
Number of buys: 121
Number of sells: 106

Quarterly Holders Quick Answers

What is CUSIP 46333X108?
CUSIP 46333X108 identifies IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2023
Previous quarter: Q3 2022

Recent filing periods for CUSIP 46333X108:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of IRWD - IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	— mixed-class rows	24,970,460 mixed-class rows	$258,689,000	—	30 Sep 2022	13F
Sarissa Capital Management LP	13F	Company	10%	16,390,000	$169,800,000	—	30 Sep 2022	13F
VANGUARD GROUP INC	13F	Company	— mixed-class rows	14,738,322 mixed-class rows	$150,550,000	—	30 Sep 2022	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	8.5%	13,858,069	$143,569,000	—	30 Sep 2022	13F
STATE STREET CORP	13F	Company	— mixed-class rows	11,482,470 mixed-class rows	$118,720,000	—	30 Sep 2022	13F
BROWN CAPITAL MANAGEMENT LLC	13F	Company	5.3%	8,637,118	$89,481,000	—	30 Sep 2022	13F
LSV ASSET MANAGEMENT	13F	Company	4.8%	7,914,220	$81,991,000	—	30 Sep 2022	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	— mixed-class rows	5,421,647 mixed-class rows	$55,760,000	—	30 Sep 2022	13F
CREDIT SUISSE AG/	13F	Company	2.8%	4,642,905	$48,101,000	—	30 Sep 2022	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	2%	3,331,623	$34,515,000	—	30 Sep 2022	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	1.8%	2,901,831	$30,063,000	—	30 Sep 2022	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	— mixed-class rows	2,513,943 mixed-class rows	$25,636,000	—	30 Sep 2022	13F
MORGAN STANLEY	13F	Company	— mixed-class rows	2,203,845 mixed-class rows	$22,830,000	—	30 Sep 2022	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	1.1%	1,805,175	$18,702,000	—	30 Sep 2022	13F
Nuveen Asset Management, LLC	13F	Company	1%	1,711,399	$17,730,000	—	30 Sep 2022	13F
ROYCE & ASSOCIATES LP	13F	Company	1%	1,678,211	$17,386,000	—	30 Sep 2022	13F
Invesco Ltd.	13F	Company	1%	1,675,528	$17,358,000	—	30 Sep 2022	13F
Bank of New York Mellon Corp	13F	Company	1%	1,636,872	$16,957,000	—	30 Sep 2022	13F
NORTHERN TRUST CORP	13F	Company	0.96%	1,562,093	$16,183,000	—	30 Sep 2022	13F
PUTNAM INVESTMENTS LLC	13F	Company	0.93%	1,510,792	$15,652,000	—	30 Sep 2022	13F
NORGES BANK	13F	Company	0.91%	1,483,774	$15,371,899	—	30 Sep 2022	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.86%	1,408,717	$14,594,000	—	30 Sep 2022	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.79%	1,289,056	$13,355,000	—	30 Sep 2022	13F
Pacer Advisors, Inc.	13F	Company	0.78%	1,271,453	$13,172,000	—	30 Sep 2022	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.73%	1,187,441	$12,302,000	—	30 Sep 2022	13F
GLENMEDE TRUST CO NA	13F	Company	0.71%	1,165,208	$12,071,000	—	30 Sep 2022	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.62%	1,018,938	$10,557,000	—	30 Sep 2022	13F
WESTFIELD CAPITAL MANAGEMENT CO LP	13F	Company	0.57%	932,769	$9,663,000	—	30 Sep 2022	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.57%	924,443	$9,577,000	—	30 Sep 2022	13F
DEUTSCHE BANK AG\	13F	Company	0.56%	917,082	$9,501,000	—	30 Sep 2022	13F
BRIDGER MANAGEMENT, LLC	13F	Company	0.56%	916,314	$9,493,000	—	30 Sep 2022	13F
Man Group plc	13F	Company	0.51%	838,277	$8,684,000	—	30 Sep 2022	13F
Ally Bridge Group (NY) LLC	13F	Company	0.45%	742,570	$7,693,000	—	30 Sep 2022	13F
GREAT LAKES ADVISORS, LLC	13F	Company	0.44%	713,805	$7,395,000	—	30 Sep 2022	13F
HRT FINANCIAL LP	13F	Company	0.41%	677,233	$7,016,000	—	30 Sep 2022	13F
CITIGROUP INC	13F	Company	0.4%	655,979	$6,796,000	—	30 Sep 2022	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.4%	650,076	$6,734,000	—	30 Sep 2022	13F
Rafferty Asset Management, LLC	13F	Company	0.39%	629,974	$6,527,000	—	30 Sep 2022	13F
13D Management LLC	13F	Company	0.37%	600,431	$6,220,000	—	30 Sep 2022	13F
BNP PARIBAS FINANCIAL MARKETS	13F	Company	0.36%	586,772	$6,078,958	—	30 Sep 2022	13F
JPMORGAN CHASE & CO	13F	Company	0.36%	581,168	$6,022,000	—	30 Sep 2022	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.35%	576,388	$5,971,000	—	30 Sep 2022	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.35%	575,566	$5,963,000	—	30 Sep 2022	13F
BARCLAYS PLC	13F	Company	0.35%	574,495	$5,951,000	—	30 Sep 2022	13F
D. E. Shaw & Co., Inc.	13F	Company	0.34%	557,434	$5,775,000	—	30 Sep 2022	13F
Jennifer C. Price	13F	Individual	0.32%	520,000	$5,387,000	—	30 Sep 2022	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.32%	518,700	$5,374,000	—	30 Sep 2022	13F
FIRST TRUST ADVISORS LP	13F	Company	0.31%	502,662	$5,208,000	—	30 Sep 2022	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	0.31%	501,577	$5,196,000	—	30 Sep 2022	13F
Hillsdale Investment Management Inc.	13F	Company	0.26%	418,917	$4,340,000	—	30 Sep 2022	13F

Institutional Holders of IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD) as of Q4 2022

As of 31 Dec 2022, IRONWOOD PHARMACEUTICALS INC - Class A Common Stock (IRWD) was held by 248 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 167,942,496 shares. The largest 10 holders included BlackRock Inc., Sarissa Capital Management LP, VANGUARD GROUP INC, WELLINGTON MANAGEMENT GROUP LLP, STATE STREET CORP, LSV ASSET MANAGEMENT, CREDIT SUISSE AG/, RENAISSANCE TECHNOLOGIES LLC, BROWN CAPITAL MANAGEMENT LLC, and MILLENNIUM MANAGEMENT LLC. This page lists 248 institutional shareholders reporting positions in this security for the Q4 2022 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2022 vs Q3 2022 Across Filers

Q3 2022 holders

234

Q4 2022 holders

248

Holder diff

Investor	Q3 2022 Shares	Q4 2022 Shares	Share Diff	Share Chg %	Q3 2022 Value $	Q4 2022 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.