Artisan Partners Limited Partnership

Position in RYTM — Rhythm Pharmaceuticals, Inc.

CIK 1466153 Milwaukee, WI

Position in RYTM

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

Position Value

$33,976,482

+$5,761,702 QoQ

Shares Held

390,669

+48.2% QoQ

Ownership

0.570%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2023

7 quarters on record

Voting authority Sole 72.4961540332097.ToString("F0")% Shared 0.ToString("F0")% None 27.5038459667903.ToString("F0")%

Healthcare · as of Mar 31, 2026

Artisan Partners Limited Partnership holds $3,601,883,777 across 24 Biotechnology names. RYTM ranks #10 (0.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ARGX	Argenx SE	1,467,982	$1,071,993,855
2	INSM	INSMED Inc	6,527,301	$1,067,344,259
3	ASND	Ascendis Pharma A/S	3,230,188	$738,840,901
4	IONS	Ionis Pharmaceuticals Inc	2,058,308	$154,558,347
5	MDGL	Madrigal Pharmaceuticals, Inc.	183,540	$96,077,683
6	CELC	Celcuity Inc.	457,070	$52,169,969
7	DBVT	DBV Technologies S.A.	2,219,386	$46,362,973
8	LEGN	Legend Biotech Corp	2,254,488	$40,783,687

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$33,976,482	390,669	+48.2%	Shares	Sole	2026-05-13
2025-12-31	$28,214,780	263,591	+11.3%	Shares	Sole	2026-02-17
2025-09-30	$23,918,572	236,841	+35.7%	Shares	Sole	2025-11-12
2025-06-30	$11,025,328	174,479	-35.7%	Shares	Sole	2025-08-12
2024-06-30	$11,138,223	271,267	-0.1%	Shares	Sole	2024-08-12
2024-03-31	$11,760,671	271,421	0.0%	Shares	Sole	2024-05-13
2023-12-31	$12,477,223	271,421	—	Shares	Sole	2024-02-12
No filing history on record for this holder in this stock.