Palo Alto Investors LP
Top Portfolio Positions
51 positions ·
$653,863,072 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| INSM |
INSMED Inc
Healthcare
|
415,269 | $67,904,786 | 10.39% | |
| ACAD |
Acadia Pharmaceuticals Inc
Healthcare
|
2,872,695 | $63,946,190 | 9.78% | |
| PTCT |
Ptc Therapeutics, Inc.
Healthcare
|
921,607 | $62,789,084 | 9.60% | |
| BMRN |
Biomarin Pharmaceutical Inc
Healthcare
|
685,182 | $38,705,931 | 5.92% | |
| UTHR |
UNITED THERAPEUTICS Corp
Healthcare
|
62,809 | $37,244,480 | 5.70% | |
| ANAB |
Anaptysbio, Inc
Healthcare
|
638,161 | $35,392,409 | 5.41% | |
| MIRM |
Mirum Pharmaceuticals, Inc.
Healthcare
|
325,175 | $30,039,666 | 4.59% | |
| DYN |
Dyne Therapeutics, Inc.
Healthcare
|
1,652,972 | $29,968,382 | 4.58% | |
| BIIB |
Biogen Inc.
Healthcare
|
140,719 | $25,798,014 | 3.95% | |
| IRON |
Disc Medicine, Inc.
Healthcare
|
401,719 | $25,685,912 | 3.93% |
Portfolio Trend
25 quarters · across all stocks
Holdings in ANAB
Shares Held
Position Value (USD)
23 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $35,392,409 | 638,161 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $33,452,751 | 690,032 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $20,623,182 | 673,520 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $18,044,626 | 812,821 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $18,975,054 | 1,020,713 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $11,174,176 | 843,971 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $28,273,028 | 843,971 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $20,139,243 | 803,641 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $18,013,883 | 799,906 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $14,713,012 | 686,882 | Shares | Sole | 2024-02-15 | |
| 2023-09-30 | $7,744,783 | 431,224 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $8,771,096 | 431,224 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $9,383,434 | 431,224 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $13,357,433 | 431,024 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $10,995,422 | 431,024 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $8,749,787 | 431,024 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $10,663,533 | 431,024 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $15,171,572 | 436,592 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $11,840,375 | 436,592 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $11,320,830 | 436,592 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $9,408,557 | 436,592 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $8,950,278 | 416,292 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $5,438,649 | 368,722 | Shares | Sole | 2020-11-16 | |
| No 13F history on record for this holder in this stock. | ||||||