SEC 13F Intelligence

Managers / Q1 2026

BAKER BROS. ADVISORS LP

CIK 0001263508 · 860 WASHINGTON STREET, 3RD FLOOR, NEW YORK, NY, 10014 · 2123395600

Reported Value
$17.4B
Q1 2026
Positions
84
Filings on Record
30
2019–present window
Filed
May 15, 2026
original filing

Summary

Baker Bros. Advisors Lp reported $17.4B in U.S.-listed holdings across 84 positions for Q1 2026.

Its largest position, INCY, represents 16.6% of the portfolio.

Compared with Q4 2025, the fund opened 7 new positions and exited 9.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $12.2BQ4 ’18Q1 ’19: $15.6BQ2 ’19: $14.7BQ3 ’19: $14.7BQ4 ’19: $18.8BQ4 ’19Q1 ’20: $16.2BQ2 ’20: $22.7BQ3 ’20: $25.0BQ4 ’20: $26.5BQ4 ’20Q1 ’21: $23.1BQ2 ’21: $22.8BQ3 ’21: $22.8BQ4 ’21: $20.6BQ4 ’21Q1 ’22: $17.4BQ2 ’22: $17.6BQ3 ’22: $15.3BQ1 ’23: $18.4BQ1 ’23Q2 ’23: $17.3BQ3 ’23: $17.4BQ4 ’23: $8.8BQ1 ’24: $8.0BQ1 ’24Q2 ’24: $7.8BQ3 ’24: $9.6BQ4 ’24: $9.4BQ1 ’25: $9.0BQ1 ’25Q2 ’25: $10.3BQ3 ’25: $13.8BQ4 ’25: $17.1BQ1 ’26: $17.4BQ1 ’26filingsflow.com

Portfolio Composition

By security type
Common Stock: 78.3%ADR: 16.9%Other: 4.3%US DOMESTIC: 0.4%Equity WRT: 0.0%
  • Common Stock · 78.3% · $13.6B
  • ADR · 16.9% · $3.0B
  • Other · 4.3% · $749M
  • US DOMESTIC · 0.4% · $75M
  • Equity WRT · 0.0% · $13,333

Quarter-over-Quarter Changes full breakdown →

Holdings — Q1 2026

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Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$17.4B84May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$17.1B86Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$13.8B91Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$10.3B89Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$9.0B89May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$9.4B95Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$9.6B93Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$7.8B95Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$8.0B87May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$8.8B84Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$17.4B101Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$17.3B107Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$18.4B105May 15, 202313F-HRchanges · EDGAR ↗
Q3 2022$15.3B115Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$17.6B117Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$17.4B118May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$20.6B121Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$22.8B122Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$22.8B120Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$23.1B126May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$26.5B126Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$25.0B120Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$22.7B114Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$16.2B110May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$18.8B99Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$14.7B109Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$14.7B103Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$15.6B96May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$12.2B93Feb 13, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.