Palo Alto Investors LP

Q4 2025 13F Holdings

  • Location
    palo alto, CA
  • Num holdings

    49

  • Value ($000)

    $718,352

  • Date Filed
    02/17/2026
  • Form type
    13F-HR
  • CIK
    0001306923
  • All SEC filings
  • Note
    Holdings aggregated across “other managers” listed in original SEC filing, see here for detailed holdings broken out by other managers
Compare Q4 2025 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
INSM

INSMED INC

COM
$85.19M
12 %

489,482

FOLD

AMICUS THERAPEUTICS INC

COM
$74.13M
10 %

5,205,767

PTCT

PTC THERAPEUTICS INC

COM
$68.66M
10 %

903,916

ACAD

ACADIA PHARMACEUTICALS INC

COM
$66.35M
9 %

2,484,031

BMRN

BIOMARIN PHARMACEUTICAL INC

COM
$44.35M
6 %

746,256

ANAB

ANAPTYSBIO INC

COM
$33.45M
5 %

690,032

BIIB

BIOGEN INC

SPONSORED ADS
$32.31M
5 %

183,571

DYN

DYNE THERAPEUTICS INC

SPONSORED ADS
$28.8M
4 %

1,472,197

UTH

UNITED THERAPEUTICS CORP

COM
$28.35M
4 %

58,186

IRON

DISC MEDICINE INC

COM
$25.21M
4 %

317,456

Rows Per Page
10
  • 5
  • 10
  • 20
  • 30
  • 50
  • 100
1 - 10 of 49