IRONWOOD PHARMACEUTICALS INC - IRWD

Sector: Healthcare · Industry: Pharmaceutical Preparations

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Q1 2026 · Q4 2025

Value (USD)

Total reported value ($000)

$669.1M

QoQ value delta ($000)

+$109.7M (+19.61%)

Implied price effect (QoQ)

+3.91%

Total shares

191,447,934

QoQ shares delta

+25,131,194 (+15.11%)

Total shares held by funds (by quarter)

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Top 25 only Full list

Partial Q1 2026 data: 225 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.

Manager	Value ($000)	Shares	% of 13F
VANGUARD GROUP INC	53,779	15,958,196	0.0%
ARMISTICE CAPITAL, LLC	52,748	15,028,000	0.94%
BlackRock, Inc.	46,903	13,362,930	0.0%
UBS Group AG	42,588	12,133,545	0.01%
Sarissa Capital Management LP	32,252	9,188,635	20.46%
BANK OF AMERICA CORP /DE/	30,477	8,682,907	0.0%
RENAISSANCE TECHNOLOGIES LLC	28,294	8,061,073	0.04%
AQR CAPITAL MANAGEMENT LLC	26,448	7,535,080	0.01%
STATE STREET CORP	26,173	7,456,944	0.0%
VANGUARD PORTFOLIO MANAGEMENT LLC	23,453	6,682,037	0.0%
ACADIAN ASSET MANAGEMENT LLC	23,065	6,577,272	0.03%
VANGUARD CAPITAL MANAGEMENT LLC	21,402	6,097,454	0.0%
TWO SIGMA INVESTMENTS, LP	20,527	5,848,276	0.02%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	16,629	4,737,857	0.0%
GEODE CAPITAL MANAGEMENT, LLC	15,950	4,543,522	0.0%
MARSHALL WACE, LLP	15,882	4,525,064	0.02%
JACOBS LEVY EQUITY MANAGEMENT, INC	12,749	3,632,477	0.05%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	11,924	3,397,242	0.01%
FEDERATED HERMES, INC.	11,754	3,348,806	0.02%
TWO SIGMA ADVISERS, LP	10,582	3,140,100	0.02%
GOLDMAN SACHS GROUP INC	9,444	2,690,634	0.0%
DIMENSIONAL FUND ADVISORS LP	7,306	2,082,055	0.0%
SUSQUEHANNA INTERNATIONAL GROUP, LLP	6,671	1,900,757	0.0%
Connor, Clark & Lunn Investment Management Ltd.	6,442	1,835,424	0.01%
Qube Research & Technologies Ltd	5,581	1,590,081	0.01%