STATE OF WISCONSIN INVESTMENT BOARD

Position in IRWD — Ironwood Pharmaceuticals Inc

CIK 854157 MADISON, WI

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Position in IRWD

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$3,277,548

+$1,178,010 QoQ

Shares Held

778,515

+30.2% QoQ

Ownership

0.471%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#31

of 212 holders

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in IRWD Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $154,808,435 across 36 Drug Manufacturers - Specialty & Generic names. IRWD ranks #14 (2.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ZTS	Zoetis Inc.	293,025	$21,056,776
2	VTRS	Viatris Inc	1,319,328	$20,950,928
3	NBIX	Neurocrine Biosciences Inc	87,254	$14,705,789
4	LNTH	Lantheus Holdings, Inc.	115,962	$12,864,824
5	TEVA	Teva Pharmaceutical Industries Ltd	365,722	$12,390,661
6	UTHR	UNITED THERAPEUTICS Corp	22,483	$12,181,963
7	LQDA	Liquidia Corp	98,858	$7,881,948
8	ELAN	Elanco Animal Health Inc	305,624	$7,521,406

All Filings in IRWD

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24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,277,548	778,515	+30.2%	Shares	Sole	2026-08-14
2026-03-31	$2,099,538	598,159	+232.2%	Shares	Sole	2026-05-15
2025-12-31	$606,734	180,040	+1327.5%	Shares	Sole	2026-02-17
2025-03-31	$18,539	12,612	-97.4%	Shares	Sole	2025-05-15
2024-12-31	$2,111,422	476,619	-16.9%	Shares	Sole	2025-02-14
2024-09-30	$2,362,515	573,426	+226.6%	Shares	Sole	2024-11-14
2024-06-30	$1,144,677	175,564	+43.1%	Shares	Sole	2024-08-14
2024-03-31	$1,068,351	122,658	+2.3%	Shares	Sole	2024-05-14
2023-12-31	$1,371,587	119,894	+0.2%	Shares	Sole	2024-02-12
2023-09-30	$1,152,354	119,663	-4.3%	Shares	Sole	2023-11-14
2023-06-30	$1,330,297	125,028	-4.9%	Shares	Sole	2023-08-14
2023-03-31	$1,383,232	131,486	-10.2%	Shares	Sole	2023-05-15
2022-12-31	$1,813,908	146,401	-5.6%	Shares	Sole	2023-02-14
2022-09-30	$1,605,872	155,007	-6.2%	Shares	Sole	2022-11-14
2022-06-30	$1,905,067	165,227	-23.1%	Shares	Sole	2022-08-15
2022-03-31	$2,702,184	214,800	0.0%	Shares	Sole	2022-05-13
2021-12-31	$2,504,568	214,800	0.0%	Shares	Sole	2022-02-11
2021-09-30	$2,805,288	214,800	0.0%	Shares	Sole	2021-11-12
2021-06-30	$2,764,476	214,800	0.0%	Shares	Sole	2021-08-12
2021-03-31	$2,401,464	214,800	-5.3%	Shares	Sole	2021-05-17
2020-12-31	$2,584,391	226,900	-11.1%	Shares	Sole	2021-02-03
2020-09-30	$2,294,248	255,200	0.0%	Shares	Sole	2020-11-16
2020-06-30	$2,633,664	255,200	+7.6%	Shares	Sole	2020-08-12
2020-03-31	$2,392,339	237,100	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.