13F Filings History of BAKER BROS. ADVISORS LP

Latest 13F report
Q3 2025 - 14 Nov 2025
Value $
$13,838,782,047
Signature - Title
Alexandra Toohey - Chief Financial Officer
Location
New York, NY
Summary
This page shows a list of all the recent 13F filings made by BAKER BROS. ADVISORS LP. Form 13F is required to be filed within 45 days of the end of a calendar quarter. BAKER BROS. ADVISORS LP reported 90 stock holdings with total value $13,838,782,047 as of Q3 2025. Top holdings included ONC, INCY, MDGL, INSM, and ACAD.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q3 2025 90 $13,838,782,047 +$587,941,651 -$248,883,606 +$339,058,045 ONC, INCY, MDGL, INSM, ACAD 13F-HR 14 Nov 2025, 16:27
Q2 2025 88 $10,307,840,459 +$977,935,575 -$253,917,055 +$724,018,520 ONC, INCY, ACAD, INSM, SMMT 13F-HR 14 Aug 2025, 16:04
Q1 2025 88 $9,036,702,464 +$206,153,924 -$422,302,510 -$216,148,586 ONC, INCY, ACAD, MDGL, SMMT 13F-HR 15 May 2025, 16:37
Q4 2024 95 $9,361,492,374 +$290,678,217 -$238,641,151 +$52,037,066 INCY, ONC, ACAD, MDGL, SMMT 13F-HR 14 Feb 2025, 16:12
Q3 2024 93 $9,648,757,562 +$238,933,420 -$134,135,269 +$104,798,151 BGNE, INCY, ACAD, SMMT, MDGL 13F-HR 14 Nov 2024, 16:07
Q2 2024 95 $7,825,077,664 +$925,327,808 -$625,739,735 +$299,588,073 INCY, BGNE, ACAD, MDGL, RVMD 13F-HR 14 Aug 2024, 16:05
Q1 2024 87 $7,971,707,022 +$381,595,188 -$510,522,774 -$128,927,586 INCY, BGNE, ACAD, MDGL, RYTM 13F-HR 15 May 2024, 16:37
Q4 2023 84 $8,788,600,529 +$625,006,269 -$10,310,460,597 -$9,685,454,328 INCY, BGNE, ACAD, MDGL, RYTM 13F-HR 14 Feb 2024, 17:12
Q3 2023 101 $17,351,037,330 +$187,409,158 -$321,794,593 -$134,385,435 SGEN, BGNE, INCY, ACAD, BMRN 13F-HR 14 Nov 2023, 16:25
Q2 2023 107 $17,279,240,811 +$436,731,637 -$522,375,105 -$85,643,468 SGEN, INCY, BGNE, ACAD, MDGL 13F-HR 14 Aug 2023, 16:13
Q1 2023 105 $18,379,748,932 +$254,540,219 -$1,250,571,428 -$996,031,209 SGEN, INCY, BGNE, ACAD, MDGL 13F-HR 15 May 2023, 16:04
Q4 2022 113 $16,651,382,602 +$272,311,014 -$570,653,174 -$298,342,160 SGEN, INCY, BGNE, BMRN, ACAD 13F-HR 14 Feb 2023, 16:06
Q3 2022 115 $15,255,622,837 +$269,529,584 -$588,916,340 -$319,386,756 SGEN, INCY, BGNE, ACAD, BMRN 13F-HR 14 Nov 2022, 16:06
Q2 2022 117 $17,612,451,550 +$251,944,928 -$198,870,592 +$53,074,336 SGEN, INCY, BGNE, BMRN, ACAD 13F-HR 15 Aug 2022, 16:56
Q1 2022 118 $17,403,462,000 +$346,995,695 -$107,053,188 +$239,942,507 SGEN, INCY, BGNE, ACAD, BMRN 13F-HR 16 May 2022, 16:05
Q4 2021 121 $20,553,592,000 +$386,028,837 -$191,439,324 +$194,589,513 SGEN, BGNE, INCY, KOD, ACAD 13F-HR 14 Feb 2022, 16:09
Q3 2021 122 $22,765,959,000 +$594,100,300 -$306,685,839 +$287,414,461 SGEN, BGNE, INCY, KOD, ASND 13F-HR 15 Nov 2021, 15:58
Q2 2021 120 $22,769,898,000 +$487,581,755 -$972,268,076 -$484,686,321 SGEN, BGNE, INCY, KOD, ACAD 13F-HR 16 Aug 2021, 16:11
Q1 2021 126 $23,065,323,000 +$741,471,420 -$871,486,468 -$130,015,048 SGEN, BGNE, INCY, KOD, ACAD 13F-HR 17 May 2021, 16:03
Q4 2020 126 $26,543,637,000 +$1,155,389,631 -$1,250,862,363 -$95,472,732 SGEN, BGNE, INCY, ACAD, KOD 13F-HR 16 Feb 2021, 15:59
Q3 2020 120 $25,025,928,000 +$10,407,779,701 -$8,324,818,232 +$2,082,961,469 SGEN, BGNE, INCY, ACAD, ALXN 13F-HR 16 Nov 2020, 16:00
Q2 2020 114 $22,670,991,000 +$621,956,861 -$795,585,889 -$173,629,028 SGEN, INCY, BGNE, ACAD, ALXN 13F-HR 14 Aug 2020, 16:08
Q1 2020 110 $16,236,233,000 +$318,438,853 -$144,874,018 +$173,564,835 SGEN, INCY, ACAD, BGNE, ALXN 13F-HR 15 May 2020, 16:03
Q4 2019 99 $18,809,854,000 +$688,640,780 -$1,121,869,451 -$433,228,671 SGEN, INCY, BGNE, ACAD, ALXN 13F-HR 14 Feb 2020, 16:26
Q3 2019 109 $14,699,689,000 +$343,408,089 -$273,420,355 +$69,987,734 SGEN, INCY, ACAD, BGNE, ALXN 13F-HR 14 Nov 2019, 16:05
Q2 2019 103 $14,714,211,000 +$307,737,016 -$653,132,708 -$345,395,692 SGEN, INCY, BGNE, ALXN, ACAD 13F-HR 14 Aug 2019, 16:01
Q1 2019 96 $15,621,759,000 +$258,147,269 -$245,406,276 +$12,740,993 SGEN, INCY, BGNE, ALXN, ACAD 13F-HR 15 May 2019, 16:06
Q4 2018 93 $12,212,527,000 +$525,605,684 -$491,723,294 +$33,882,390 SGEN, INCY, BGNE, ALXN, GHDX 13F-HR 13 Feb 2019, 16:14
Q3 2018 97 $15,181,170,000 +$452,545,359 -$604,627,307 -$152,081,948 SGEN, INCY, BGNE, ALXN, GHDX 13F-HR 14 Nov 2018, 15:50
Q2 2018 119 $13,308,802,000 +$1,493,436,245 -$473,867,975 +$1,019,568,270 SGEN, INCY, BGNE, ALXN, BMRN 13F-HR 14 Aug 2018, 15:48
Q1 2018 114 $11,797,988,000 +$817,631,737 -$324,985,643 +$492,646,094 INCY, SGEN, BGNE, ALXN, BMRN 13F-HR 15 May 2018, 15:47
Q4 2017 123 $11,537,077,000 +$715,796,247 -$306,026,924 +$409,769,323 INCY, SGEN, ALXN, ACAD, BMRN 13F-HR 14 Feb 2018, 15:49
Q3 2017 121 $12,330,918,000 +$271,474,810 -$98,384,125 +$173,090,685 INCY, SGEN, ALXN, ACAD, BMRN 13F-HR 14 Nov 2017, 15:45
Q2 2017 120 $11,409,449,000 +$419,604,974 -$237,610,556 +$181,994,418 INCY, SGEN, ALXN, ACAD, BMRN 13F-HR 14 Aug 2017, 15:48
Q1 2017 119 $12,220,691,000 +$1,552,644,973 -$1,266,877,191 +$285,767,782 INCY, SGEN, ACAD, ALXN, GHDX 13F-HR 15 May 2017, 16:00
Q4 2016 133 $10,200,965,000 +$301,990,877 -$1,029,878,979 -$727,888,102 SGEN, INCY, ALXN, ACAD, GHDX 13F-HR 14 Feb 2017, 16:13
Q3 2016 134 $11,019,928,000 +$268,439,497 -$280,641,562 -$12,202,065 SGEN, INCY, ABBV, ACAD, ALXN 13F-HR 14 Nov 2016, 17:30
Q2 2016 135 $9,537,918,000 +$84,954,478 -$543,720,940 -$458,766,462 INCY, SGEN, ABBV, ACAD, ALXN 13F-HR 15 Aug 2016, 16:07
Q1 2016 134 $9,476,562,000 +$970,134,635 -$379,773,393 +$590,361,242 INCY, SGEN, ALXN, ABBV, ACAD 13F-HR 16 May 2016, 16:12
Q4 2015 133 $12,071,272,000 +$479,244,769 -$139,567,076 +$339,677,693 INCY, SGEN, ALXN, ABBV, ACAD 13F-HR 16 Feb 2016, 16:52
Q3 2015 133 $10,823,762,000 +$1,447,730,363 -$710,330,344 +$737,400,019 INCY, SGEN, ALXN, ABBV, ACAD 13F-HR 16 Nov 2015, 16:07
Q2 2015 126 $11,400,413,000 +$2,515,703,920 -$4,423,424,556 -$1,907,720,636 INCY, SGEN, ALXN, ABBV, ACAD 13F-HR 14 Aug 2015, 16:19
Q1 2015 130 $12,022,854,000 +$633,039,418 -$870,619,111 -$237,579,693 PCYC, INCY, GEVA, SGEN, ACAD 13F-HR 15 May 2015, 16:06
Q4 2014 121 $9,797,154,000 +$882,162,320 -$134,076,818 +$748,085,502 PCYC, INCY, GEVA, SGEN, AVNR 13F-HR 17 Feb 2015, 16:15
Q3 2014 107 $7,828,989,000 +$269,843,708 -$531,986,140 -$262,142,432 PCYC, SGEN, GEVA, INCY, ACAD 13F-HR 14 Nov 2014, 16:51
Q2 2014 106 $8,164,077,000 +$448,766,185 -$373,136,860 +$75,629,325 GEVA, PCYC, SGEN, INCY, ACAD 13F-HR 14 Aug 2014, 16:15
Q1 2014 108 $7,867,925,000 +$656,287,181 -$434,702,924 +$221,584,257 SGEN, GEVA, PCYC, INCY, ACAD 13F-HR 15 May 2014, 16:10
Q4 2013 95 $7,095,729,000 $0 $0 $0 PCYC, SGEN, INCY, GEVA, ACAD 13F-HR 14 Feb 2014, 16:21