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Livermore
Livermore
ZHEN

Baker Bros. Advisors LP

SEC CIK
0001263508
Latest filing
Aug 14, 2026

RARE holding history

Ultragenyx Pharmaceutical Inc. in every 13F filed by Baker Bros. Advisors LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

RARE overviewAll 13F holders of RAREFull Q2 2026 holdings

Shares (Q1 2026)
0
Sold out in Q1 2026
Value
$0
% of portfolio
0.0%
Quarters held
20
Since Q1 2021
Holdings of RARE by Baker Bros. Advisors LP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 20260$00.0%−2,772,692−100.0%Sold outHolders
Q4 20252,772,692$63.8M0.4%00.0%UnchangedHolders
Q3 20252,772,692$83.4M0.6%00.0%UnchangedHolders
Q2 20252,772,692$100.8M1.0%+1,196,578+75.9%AddedHolders
Q1 20251,576,114$57.1M0.6%00.0%UnchangedHolders
Q4 20241,576,114$66.3M0.7%00.0%UnchangedHolders
Q3 20241,576,114$87.6M0.9%+109,567+7.5%AddedHolders
Q2 20241,466,547$60.3M0.8%00.0%UnchangedHolders
Q1 20241,466,547$68.5M0.9%00.0%UnchangedHolders
Q4 20231,466,547$70.1M0.8%+100,000+7.3%AddedHolders
Q3 20231,366,547$48.7M0.3%+583,488+74.5%AddedHolders
Q2 2023783,059$36.1M0.2%+312,085+66.3%AddedHolders
Q1 2023470,974$18.9M0.1%00.0%UnchangedHolders
Q4 2022470,974$21.8M0.1%00.0%UnchangedHolders
Q3 2022470,974$19.5M0.1%00.0%UnchangedHolders
Q2 2022470,974$28.1M0.2%+26,530+6.0%AddedHolders
Q1 2022444,444$32.3M0.2%00.0%UnchangedHolders
Q4 2021444,444$37.4M0.2%00.0%UnchangedHolders
Q3 2021444,444$40.1M0.2%00.0%UnchangedHolders
Q2 2021444,444$42.4M0.2%00.0%UnchangedHolders
Q1 2021444,444$50.6M0.2%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.