Driehaus Capital Management LLC

Position in ARWR — Arrowhead Pharmaceuticals, Inc.

CIK 938206 Chicago, IL

Position in ARWR

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

Position Value

$110,083,819

+$35,449,815 QoQ

Shares Held

1,350,556

+13.5% QoQ

Ownership

0.956%

of shares outstanding

% of Portfolio

0.64%

of 13F equity value

Holder Rank

#16

of 497 holders

Holding Since

Jun 2023

7 quarters on record

Voting authority Sole 86% Shared 0% None 14%

Healthcare · as of Jun 30, 2026

Driehaus Capital Management LLC holds $3,602,052,293 across 59 Biotechnology names. ARWR ranks #11 (3.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DFTX	Definium Therapeutics, Inc.	6,845,276	$322,001,783
2	PRAX	Praxis Precision Medicines, Inc.	959,048	$321,079,679
3	XENE	Xenon Pharmaceuticals Inc.	4,418,557	$266,704,100
4	SYRE	Spyre Therapeutics, Inc.	2,799,166	$248,509,957
5	CRNX	Crinetics Pharmaceuticals, Inc.	6,463,551	$241,866,078
6	APGE	Apogee Therapeutics, Inc.	1,740,101	$230,963,605
7	EWTX	Edgewise Therapeutics, Inc.	4,728,623	$192,123,952
8	SEPN	Septerna, Inc.	4,433,058	$148,463,112

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$110,083,819	1,350,556	+13.5%	Shares	Sole	2026-08-14
2026-03-31	$74,634,004	1,190,335	-32.7%	Shares	Sole	2026-05-15
2025-12-31	$117,466,482	1,769,340	-15.7%	Shares	Sole	2026-02-17
2025-09-30	$72,408,237	2,099,398	+7018.3%	Shares	Sole	2025-11-14
2023-12-31	$902,485	29,493	0.0%	Shares	Sole	2024-02-14
2023-09-30	$792,476	29,493	-94.2%	Shares	Sole	2023-11-14
2023-06-30	$18,103,191	507,661	—	Shares	Sole	2023-08-14
No filing history on record for this holder in this stock.