SEC 13F Intelligence

Palo Alto Investors LP / ANAB

Palo Alto Investors LP’s Anaptysbio Inc Position

Does Palo Alto Investors LP own Anaptysbio Inc (ANAB)? Yes — 638.2K shares worth $35M (+5.41% of its 13F portfolio) as of Q1 2026, down from 690.0K shares the prior filed quarter.

Position Value
$35M
Q1 2026
Shares
638.2K
% of Portfolio
+5.41%
Quarters Held
23
currently held

Position History ANAB

Reported value by quarter
Q3 ’20: $5MQ3 ’20Q4 ’20: $9MQ1 ’21: $9MQ2 ’21: $11MQ2 ’21Q3 ’21: $12MQ4 ’21: $15MQ1 ’22: $11MQ1 ’22Q2 ’22: $9MQ3 ’22: $11MQ4 ’22: $13MQ4 ’22Q1 ’23: $9MQ2 ’23: $9MQ3 ’23: $8MQ3 ’23Q4 ’23: $15MQ1 ’24: $18MQ2 ’24: $20MQ2 ’24Q3 ’24: $28MQ4 ’24: $11MQ1 ’25: $19MQ1 ’25Q2 ’25: $18MQ3 ’25: $21MQ4 ’25: $33MQ4 ’25Q1 ’26: $35Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026638.2K$35M+5.41%
Q4 2025690.0K$33M+4.66%
Q3 2025673.5K$21M+3.82%
Q2 2025812.8K$18M+3.84%
Q1 20251.02M$19M+3.61%
Q4 2024844.0K$11M+1.73%
Q3 2024844.0K$28M+3.67%
Q2 2024803.6K$20M+2.33%
Q1 2024799.9K$18M+2.03%
Q4 2023686.9K$15M+1.33%
Q3 2023431.2K$8M+0.73%
Q2 2023431.2K$9M+0.71%
Q1 2023431.2K$9M+0.78%
Q4 2022431.0K$13M+1.14%
Q3 2022431.0K$11M+0.87%
Q2 2022431.0K$9M+0.76%
Q1 2022431.0K$11M+0.82%
Q4 2021436.6K$15M+0.97%
Q3 2021436.6K$12M+0.71%
Q2 2021436.6K$11M+0.62%
Q1 2021436.6K$9M+0.54%
Q4 2020416.3K$9M+0.47%
Q3 2020368.7K$5M+0.30%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Palo Alto Investors LP’s full portfolio or all institutional holders of ANAB.