BlackRock, Inc.

Position in IRWD — Ironwood Pharmaceuticals Inc

CIK 2012383 New York, NY

Position in IRWD

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$46,903,878

+$3,819,087 QoQ

Shares Held

13,362,930

+4.5% QoQ

Ownership

8.12%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2024

7 quarters on record

Voting authority Sole 97.46298903010043.ToString("F0")% Shared 0.ToString("F0")% None 2.5370109698995655.ToString("F0")%

Healthcare · as of Mar 31, 2026

BlackRock, Inc. holds $19,747,889,781 across 67 Drug Manufacturers - Specialty & Generic names. IRWD ranks #29 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ZTS	Zoetis Inc.	35,584,312	$4,206,421,510
2	UTHR	UNITED THERAPEUTICS Corp	5,399,649	$3,201,883,855
3	TEVA	Teva Pharmaceutical Industries Ltd	65,136,464	$1,961,910,288
4	NBIX	Neurocrine Biosciences Inc	13,385,607	$1,763,419,854
5	VTRS	Viatris Inc	84,359,804	$1,139,700,941
6	ELAN	Elanco Animal Health Inc	47,622,630	$1,139,609,527
7	ALKS	Alkermes plc.	28,314,410	$1,001,197,527
8	LNTH	Lantheus Holdings, Inc.	8,183,193	$620,695,182

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$46,903,878	13,362,930	+4.5%	Shares	Sole	2026-05-13
2025-12-31	$43,084,791	12,784,806	+6.0%	Shares	Sole	2026-02-12
2025-09-30	$15,801,946	12,062,558	+0.3%	Shares	Sole	2025-11-12
2025-06-30	$8,656,553	12,022,998	+1.2%	Shares	Sole	2025-08-12
2025-03-31	$17,462,013	11,878,924	-48.4%	Shares	Sole	2025-05-02
2024-12-31	$102,055,387	23,037,335	+0.5%	Shares	Sole	2025-02-07
2024-09-30	$94,429,804	22,919,857	—	Shares	Sole	2024-11-13
No filing history on record for this holder in this stock.