BAKER BROS. ADVISORS LP

13F Portfolio Filings

Most recent 13F
Q2 2026
13D/G filings
13D on 12 securities, 13G on 19 securities
Location
New York, NY
CIK
0001263508
All SEC filings
View on sec.gov
Holdings Value, Excluding Options
Quarter Holdings Value, Excl. Options ($000) Top Holdings Form Type Date Filed Filing ID
Q2 2026 84 19,955,239 INCY, ONC, RVMD, MDGL 13F-HR 8/14/2026 000110465926097191
Q1 2026 84 17,415,690 INCY, ONC, INSM, MDGL 13F-HR 5/15/2026 000110465926062547
Q4 2025 86 17,078,624 INCY, ONC, MDGL, INSM 13F-HR 2/17/2026 000110465926016374
Q3 2025 91 13,838,782 ONC, INCY, MDGL, INSM 13F-HR 11/14/2025 000110465925112595
Q2 2025 89 10,307,840 ONC, INCY, ACAD, INSM 13F-HR 8/14/2025 000110465925078573
Q1 2025 89 9,036,702 ONC, INCY, ACAD, MDGL 13F-HR 5/15/2025 000110465925049518
Q4 2024 95 9,361,492 INCY, ONC, ACAD, MDGL 13F-HR 2/14/2025 000110465925014085
Q3 2024 93 9,648,758 ONC, INCY, ACAD, SMMT 13F-HR 11/14/2024 000110465924118899
Q2 2024 95 7,825,078 INCY, ONC, ACAD, MDGL 13F-HR 8/14/2024 000110465924089606
Q1 2024 87 7,971,707 INCY, ONC, ACAD, MDGL 13F-HR 5/15/2024 000110465924061996
Q4 2023 84 8,788,601 INCY, ONC, ACAD, MDGL 13F-HR 2/14/2024 000110465924024053
Q3 2023 101 17,351,037 SGEN, ONC, INCY, ACAD 13F-HR 11/14/2023 000110465923118157
Q2 2023 107 17,279,241 SGEN, INCY, ONC, ACAD 13F-HR 8/14/2023 000110465923091343
Q1 2023 105 18,379,749 SGEN, INCY, ONC, ACAD 13F-HR 5/15/2023 000110465923060720
Q4 2022 113 16,651,383 SGEN, INCY, ONC, BMRN 13F-HR 2/14/2023 000110465923021551
Q3 2022 115 15,269,446 SGEN, INCY, ONC, ACAD 13F-HR 11/14/2022 000110465922118527
Q2 2022 117 17,626,987 SGEN, INCY, ONC, BMRN 13F-HR 8/15/2022 000110465922091286
Q1 2022 118 17,403,462 SGEN, INCY, ONC, ACAD 13F-HR 5/16/2022 000110465922061288
Q4 2021 121 20,553,592 SGEN, ONC, INCY, KOD 13F-HR 2/14/2022 000110465922022725
Q3 2021 122 22,771,634 SGEN, ONC, INCY, KOD 13F-HR 11/15/2021 000110465921139109
Q2 2021 120 22,769,898 SGEN, ONC, INCY, KOD 13F-HR 8/16/2021 000110465921106314
Q1 2021 126 23,065,323 SGEN, ONC, INCY, KOD 13F-HR 5/17/2021 000110465921068025
Q4 2020 126 26,543,637 SGEN, ONC, INCY, ACAD 13F-HR 2/16/2021 000110465921023833
Q3 2020 120 25,025,928 SGEN, ONC, INCY, ACAD 13F-HR 11/16/2020 000110465920125767
Q2 2020 114 22,670,991 SGEN, INCY, ONC, ACAD 13F-HR 8/14/2020 000110465920095518
Q1 2020 110 16,236,233 SGEN, INCY, ACAD, ONC 13F-HR 5/15/2020 000110465920062575
Q4 2019 99 18,809,854 SGEN, INCY, ONC, ACAD 13F-HR 2/14/2020 000110465920021838
Q3 2019 109 14,699,689 SGEN, INCY, ACAD, ONC 13F-HR 11/14/2019 000110465919064169
Q2 2019 103 14,714,211 SGEN, INCY, ONC, ALXN 13F-HR 8/14/2019 000114420419040033
Q1 2019 96 15,621,759 SGEN, INCY, ONC, ALXN 13F-HR 5/15/2019 000114420419026555
Q4 2018 93 12,212,527 SGEN, INCY, ONC, ALXN 13F-HR 2/13/2019 000114420419007156
Q3 2018 97 15,181,170 SGEN, INCY, ONC, ALXN 13F-HR 11/14/2018 000114420418059891
Q2 2018 119 13,308,803 SGEN, INCY, ONC, ALXN 13F-HR 8/14/2018 000114420418044607
Q1 2018 114 11,797,988 INCY, SGEN, ONC, ALXN 13F-HR 5/15/2018 000114420418028818
Q4 2017 123 11,537,077 INCY, SGEN, ALXN, ACAD 13F-HR 2/14/2018 000114420418008839
Q3 2017 121 12,330,918 INCY, SGEN, ALXN, ACAD 13F-HR 11/14/2017 000114420417058963
Q2 2017 120 11,438,426 INCY, SGEN, ALXN, ACAD 13F-HR 8/14/2017 000114420417043086
Q1 2017 119 12,220,691 INCY, SGEN, ACAD, ALXN 13F-HR 5/15/2017 000114420417027430
Q4 2016 133 10,200,965 SGEN, INCY, Incyte Corporation, ALXN 13F-HR 2/14/2017 000114420417008836
Q3 2016 134 11,019,928 SGEN, INCY, ABBV, ACAD 13F-HR 11/14/2016 000114420416134352
Q2 2016 135 9,537,918 INCY, SGEN, ABBV, ACAD 13F-HR 8/15/2016 000114420416119409
Q1 2016 134 9,482,104 INCY, SGEN, ALXN, ABBV 13F-HR 5/16/2016 000114420416102596
Q4 2015 133 12,071,272 INCY, SGEN, ALXN, Incyte Corporation 13F-HR 2/16/2016 000114420416082790
Q3 2015 133 10,823,762 INCY, SGEN, ALXN, ABBV 13F-HR 11/16/2015 000114420415065993
Q2 2015 126 11,400,413 INCY, SGEN, ALXN, ABBV 13F-HR 8/14/2015 000114420415049845
Q1 2015 130 12,022,854 PCYC, INCY, GEVA, SGEN 13F-HR 5/15/2015 000114420415031569
Q4 2014 121 9,797,208 PCYC, INCY, GEVA, SGEN 13F-HR 2/17/2015 000114420415010112
Q3 2014 110 7,828,989 PCYC, SGEN, Salix 2.75% 5/15/15, GEVA 13F-HR 11/14/2014 000114420414068894
Q2 2014 107 8,164,077 GEVA, PCYC, SGEN, INCY 13F-HR 8/14/2014 000114420414050184
Q1 2014 108 7,867,925 SGEN, GEVA, PCYC, INCY 13F-HR 5/15/2014 000114420414031196
Q4 2013 95 7,095,729 PCYC, SGEN, INCY, GEVA 13F-HR 2/14/2014 000114420414009842

13D and 13G Filings

All 13D and 13G filings

Each security where the latest filing since 12/18/2024 is a 13D, newest first.

Issuer % of Class Filed
Madrigal Pharmaceuticals, Inc. 13D/A
MDGL · 558868105
 10.0% 11/6/2026
Event 11/6/2026
Kodiak Sciences Inc. 13D/A
KOD · 50015M109
 35.0% 9/30/2026
Event 9/28/2026
BeOne Medicines Ltd. 13D/A
ONC · 07725L102
 7.8% 9/16/2026
Event 9/14/2026
Replimune Group, Inc. 13D/A
REPL · 76029N106
 11.8% 8/11/2026
Event 8/9/2026
Kiniksa Pharmaceuticals International, plc 13D/A
KNSA · G52694109
 7.0% 5/26/2026
Event 5/21/2026
Incyte Corp 13D/A
INCY · 45337C102
 15.6% 5/11/2026
Event 5/7/2026
Prelude Therapeutics Inc 13D/A
PRLD · 74065P101
 15.5% 4/22/2026
Event 4/20/2026
ACADIA Pharmaceuticals Inc. 13D/A
ACAD · 004225108
 25.4% 2/26/2026
Event 2/24/2026
DBV Technologies S.A. 13D/A
DBVT · 23306J309
 10.0% 1/14/2026
Event 1/12/2026
Kymera Therapeutics, Inc. 13D/A
KYMR · 501575104
 10.9% 12/11/2025
Event 12/9/2025
Sera Prognostics, Inc. 13D
SERA · 81749D107
 16.1% 2/14/2025
Event 2/12/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
IGM Biosciences, Inc. 13D/A
IGMS · 449585108
 0% 8/18/2025
Event 8/14/2025

19 other securities where the latest filing is a 13G, the newest filed 8/14/2026. View all