MARTINGALE ASSET MANAGEMENT L P

Position in IRWD — Ironwood Pharmaceuticals Inc

CIK 936944 BOSTON, MA

Back to IRWD Full portfolio

Position in IRWD

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

Position Value

$719,518

-$880,457 QoQ

Shares Held

204,991

+46.6% QoQ

Ownership

0.125%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2022

9 quarters on record

Voting authority Sole 14.484050519291092.ToString("F0")% Shared 0.ToString("F0")% None 85.51594948070891.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

MARTINGALE ASSET MANAGEMENT L P holds $47,192,066 across 16 Drug Manufacturers - Specialty & Generic names. IRWD ranks #13 (1.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALKS	Alkermes plc.	194,766	$6,886,925
2	ZTS	Zoetis Inc.	49,722	$5,877,637
3	NBIX	Neurocrine Biosciences Inc	41,023	$5,404,370
4	UTHR	UNITED THERAPEUTICS Corp	7,491	$4,442,013
5	INDV	Indivior Pharmaceuticals, Inc.	139,110	$4,240,072
6	SUPN	Supernus Pharmaceuticals, Inc.	67,548	$3,491,556
7	AMRX	Amneal Pharmaceuticals, Inc.	260,311	$3,235,665
8	PBH	Prestige Consumer Healthcare Inc.	51,039	$3,025,081

All Filings in IRWD

Export CSV

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$719,518	204,991	+46.6%	Shares	Sole	2026-05-13
2023-12-31	$1,599,975	139,858	-0.1%	Shares	Sole	2024-02-12
2023-09-30	$1,348,180	139,998	0.0%	Shares	Sole	2023-11-14
2023-06-30	$1,489,578	139,998	+4.2%	Shares	Sole	2023-08-11
2023-03-31	$1,412,751	134,292	+2.1%	Shares	Sole	2023-05-12
2022-12-31	$1,630,400	131,590	+2.2%	Shares	Sole	2023-02-13
2022-09-30	$1,333,881	128,753	+3.0%	Shares	Sole	2022-11-14
2022-06-30	$1,441,826	125,050	+30.1%	Shares	Sole	2022-08-11
2022-03-31	$1,209,541	96,148	—	Shares	Sole	2022-05-12
No filing history on record for this holder in this stock.