WELLINGTON MANAGEMENT GROUP LLP

Position in IRWD — Ironwood Pharmaceuticals Inc

CIK 902219 Boston, MA

Back to IRWD Full portfolio

Position in IRWD

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,591,836

-$106,448 QoQ

Shares Held

453,515

-10.0% QoQ

Ownership

0.276%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

18 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 70.62390439125498.ToString("F0")% None 29.376095608745022.ToString("F0")%

Common Shares in IRWD Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $3,311,744,758 across 31 Drug Manufacturers - Specialty & Generic names. IRWD ranks #20 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	UTHR	UNITED THERAPEUTICS Corp	2,264,247	$1,342,653,181
2	ZTS	Zoetis Inc.	10,150,096	$1,199,842,846
3	TEVA	Teva Pharmaceutical Industries Ltd	7,251,828	$218,425,057
4	NBIX	Neurocrine Biosciences Inc	1,389,539	$183,057,866
5	ALKS	Alkermes plc.	2,970,166	$105,025,067
6	ELAN	Elanco Animal Health Inc	3,035,856	$72,648,032
7	LNTH	Lantheus Holdings, Inc.	768,850	$58,317,270
8	HLN	Haleon plc	4,828,648	$48,334,765

All Filings in IRWD

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18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,591,836	453,515	-10.0%	Shares	Defined	2026-05-15
2025-12-31	$1,698,284	503,942	+360.2%	Shares	Defined	2026-02-17
2024-06-30	$713,905	109,495	+15.1%	Shares	Defined	2024-08-14
2024-03-31	$828,267	95,094	-2.4%	Shares	Defined	2024-05-15
2023-12-31	$1,114,461	97,418	-98.4%	Shares	Defined	2024-02-12
2023-03-31	$64,997,167	6,178,438	-53.7%	Shares	Defined	2023-05-12
2022-12-31	$165,287,270	13,340,377	-3.7%	Shares	Defined	2023-02-13
2022-09-30	$143,569,593	13,858,069	-7.1%	Shares	Defined	2022-11-14
2022-06-30	$172,004,008	14,917,954	-1.7%	Shares	Defined	2022-08-15
2022-03-31	$190,985,117	15,181,647	-12.2%	Shares	Defined	2022-05-16
2021-12-31	$201,721,554	17,300,305	-1.1%	Shares	Defined	2022-02-11
2021-09-30	$228,563,331	17,501,021	-17.0%	Shares	Defined	2021-11-15
2021-06-30	$271,488,154	21,094,651	-0.4%	Shares	Defined	2021-08-16
2021-03-31	$236,896,427	21,189,305	-2.0%	Shares	Defined	2021-05-17
2020-12-31	$246,225,749	21,617,713	-3.0%	Shares	Defined	2021-02-12
2020-09-30	$200,253,630	22,275,154	+0.3%	Shares	Defined	2020-11-16
2020-06-30	$229,298,622	22,218,859	+0.7%	Shares	Defined	2020-08-14
2020-03-31	$222,628,482	22,064,270	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.