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Baker Bros. Advisors LP

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

174

Stocks Covered

68

Latest Filing

Feb 17, 2026

Filings

Madrigal Pharmaceuticals, Inc.

SC 13D · Jun 16, 2023

8.4%

1.5M shares

Verastem, Inc.

SC 13G/A · Jun 12, 2023

8.0%

1.3M shares

TScan Therapeutics, Inc.

SC 13D/A · Jun 2, 2023

6.5%

2.8M shares

ACADIA Pharmaceuticals Inc.

SC 13D/A · May 24, 2023

26.5%

43.1M shares

Prelude Therapeutics Incorporated

SC 13D/A · May 24, 2023

19.5%

10.2M shares

BeiGene, Ltd.

SC 13D/A · May 5, 2023

11.2%

152.5M shares

Bellicum Pharmaceuticals, Inc.

SC 13D · May 5, 2023

20.0%

2.2M shares

Seagen Inc.

SC 13D/A · May 3, 2023

23.8%

44.6M shares

Incyte Corporation

SC 13D/A · Mar 15, 2023

16.3%

36.3M shares

Seagen Inc.

SC 13D/A · Mar 13, 2023

25.1%

47.0M shares

Talis Biomedical Corporation

SC 13D/A · Mar 10, 2023

66.2%

37.6M shares

Zymeworks Inc.

SC 13G/A · Feb 14, 2023

5.9%

3.8M shares

HOOKIPA Pharma Inc.

SC 13G · Feb 14, 2023

6.6%

3.5M shares

Aravive, Inc.

SC 13G · Feb 14, 2023

7.5%

4.6M shares

Surrozen, Inc.

SC 13G/A · Feb 14, 2023

2.3%

833K shares

BioCryst Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2023

9.9%

19.1M shares

2seventy bio, Inc.

SC 13G · Feb 14, 2023

5.4%

2.1M shares

Verastem, Inc.

SC 13G/A · Feb 14, 2023

13.5%

27.0M shares

Akero Therapeutics, Inc.

SC 13G · Feb 14, 2023

5.1%

2.4M shares

Cerus Corporation

SC 13G/A · Feb 14, 2023

9.1%

16.1M shares

Kala Pharmaceuticals, Inc.

SC 13G · Feb 14, 2023

10.0%

181K shares

Opthea Limited

SC 13G/A · Feb 14, 2023

6.8%

31.6M shares

Rhythm Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2023

11.3%

6.4M shares

Ascendis Pharma A/S

SC 13G/A · Feb 14, 2023

8.7%

5.0M shares

Biomea Fusion, Inc.

SC 13G · Feb 14, 2023

7.2%

2.1M shares

Replimune Group, Inc.

SC 13G · Feb 14, 2023

10.0%

5.8M shares

Madrigal Pharmaceuticals, Inc.

SC 13G/A · Feb 14, 2023

9.0%

1.5M shares

Nurix Therapeutics, Inc.

SC 13G/A · Feb 14, 2023

10.0%

4.8M shares

Kymera Therapeutics, Inc.

SC 13G · Feb 14, 2023

5.2%

2.9M shares

Cyteir Therapeutics, Inc.

SC 13G · Feb 14, 2023

7.0%

2.5M shares

Immatics N.V.

SC 13G/A · Feb 14, 2023

6.8%

5.2M shares

Inozyme Pharma, Inc.

SC 13G · Feb 14, 2023

5.1%

2.2M shares

Merus N.V.

SC 13G/A · Feb 14, 2023

0.0%

0 shares

Aerovate Therapeutics, Inc.

SC 13G/A · Feb 14, 2023

8.0%

2.0M shares

Aeglea BioTherapeutics, Inc.

SC 13G · Feb 14, 2023

9.9%

6.4M shares

Cabaletta Bio, Inc.

SC 13G · Feb 14, 2023

5.2%

1.3M shares

Achilles Therapeutics plc

SC 13G/A · Feb 14, 2023

9.9%

4.2M shares

Mereo BioPharma Group plc

SC 13G/A · Feb 14, 2023

10.0%

69.4M shares

Otonomy, Inc.

SC 13G/A · Feb 10, 2023

0.0%

0 shares

ACADIA Pharmaceuticals Inc.

SC 13D/A · Jan 17, 2023

26.0%

42.2M shares

Amarin Corporation plc

SC 13G/A · Dec 12, 2022

0.0%

0 shares

Otonomy, Inc.

SC 13G/A · Nov 10, 2022

6.1%

3.4M shares

Rhythm Pharmaceuticals, Inc.

SC 13G/A · Oct 7, 2022

10.9%

6.1M shares

Immunocore Holdings plc

SC 13D/A · Jul 20, 2022

9.9%

4.7M shares

Talis Biomedical Corporation

SC 13D/A · Jun 13, 2022

66.4%

37.5M shares

DBV Technologies S.A.

SC 13D/A · Jun 13, 2022

25.0%

23.5M shares

Kodiak Sciences Inc.

SC 13D/A · Jun 6, 2022

33.4%

17.4M shares

Kodiak Sciences Inc.

SC 13D/A · May 18, 2022

31.6%

16.4M shares

TScan Therapeutics, Inc.

SC 13D/A · May 12, 2022

14.7%

2.8M shares

IGM Biosciences, Inc.

SC 13D/A · Apr 5, 2022

11.6%

3.2M shares