BAKER BROS ADVISORS LP's Q4 2021 13F: 5 new positions, 5 exits

Form 13F-HR for the quarter ended Dec 31, 2021 · filed Feb 14, 2022 · 116 reported positions · accession 0001104659-22-022725

What changed this quarter

BAKER BROS ADVISORS LP's changes in reported equity positions, Q4 2021
Activity Security Weight before Weight now Change Shares Shares %
Increased Incyte Corporation (INCY) 9.8% 12.1% +2.3 pts +1.6M sh +5%
New Entrada Therapeutics, Inc. (TRDA) — 0.4% +0.4 pts +4.7M sh new
Reduced Seagen Inc. (SGEN) 35.6% 35.5% 0.0 pts −395K sh −1%
Increased ChemoCentryx, Inc. (CCXI) 0.0% 0.3% +0.3 pts +1.33M sh +442%
New 2seventy bio, Inc. (TSVT) — 0.1% +0.1 pts +833K sh new
Reduced Fulgent Genetics, Inc. (FLGT) 0.2% 0.1% −0.1 pts −200K sh −50%
Increased Travere Therapeutics, Inc. (TVTX) 0.2% 0.4% +0.2 pts +629K sh +31%
Increased Krystal Biotech, Inc. (KRYS) 0.1% 0.3% +0.1 pts +200K sh +33%
Increased Affimed N.V. (AFMD) 0.0% 0.1% +0.1 pts +2.49M sh +1512%
Increased Replimune Group, Inc. (REPL) 0.0% 0.1% +0.1 pts +440K sh +287%
Exited Mirum Pharmaceuticals, Inc. (MIRM) 0.1% — −0.1 pts −647K sh −100%
New Sarepta Therapeutics, Inc. (SRPT) — 0.1% +0.1 pts +123K sh new
Exited Aurinia Pharmaceuticals Inc. (AUPH) 0.1% — −0.1 pts −521K sh −100%
Reduced Novavax, Inc. (NVAX) 0.1% 0.0% −0.1 pts −60,588 sh −56%
New FibroGen, Inc. (FGEN) — 0.0% 0.0 pts +580K sh new
Reduced Albireo Pharma, Inc. (ALBO) 0.1% 0.0% 0.0 pts −308K sh −75%
Increased Chinook Therapeutics, Inc. (KDNY) 0.1% 0.2% +0.1 pts +431K sh +23%
Increased Relmada Therapeutics, Inc. (RLMD) 0.0% 0.1% 0.0 pts +294K sh +146%
Increased Alkermes plc (ALKS) 0.2% 0.2% 0.0 pts +272K sh +22%
Increased Legend Biotech Corporation (LEGN) 0.5% 0.6% 0.0 pts +125K sh +5%
Exited Amryt Pharma plc (AMYT) 0.0% — 0.0 pts −518K sh −100%
Exited Acceleron Pharma Inc. (XLRN) 0.0% — 0.0 pts −22,430 sh −100%
Increased Global Blood Therapeutics, Inc. (GBT) 0.4% 0.5% +0.1 pts +97,324 sh +3%
Increased Axsome Therapeutics, Inc. (AXSM) 0.1% 0.1% 0.0 pts +71,913 sh +13%
Increased TCR2 Therapeutics Inc. (TCRR) 0.0% 0.0% 0.0 pts +577K sh +327%
Reduced Crinetics Pharmaceuticals, Inc. (CRNX) 0.1% 0.1% 0.0 pts −93,176 sh −10%
Increased Tricida, Inc. (TCDAQ) 0.0% 0.1% 0.0 pts +248K sh +24%
Reduced Amarin Corporation plc (AMRN) 0.5% 0.3% −0.1 pts −686K sh −3%
Increased Aerovate Therapeutics, Inc. (AVTE) 0.2% 0.1% 0.0 pts +180K sh +11%
Reduced Opthea Limited (CYVNY) 0.1% 0.1% 0.0 pts −187K sh −6%
New Foghorn Therapeutics Inc. (FHTX) — 0.0% 0.0 pts +45,027 sh new
Exited Mereo BioPharma Group plc (MREO) 0.0% — 0.0 pts −293K sh −100%
Increased Otonomy, Inc. (OTIC) 0.1% 0.1% 0.0 pts +151K sh +2%
Increased Talis Biomedical Corporation (TLIS) 0.2% 0.1% −0.1 pts +50,000 sh +1%

Reported by the fund in its Form 13F filed with the SEC; holdings are as of the quarter-end report date and may have changed since. For informational purposes only — not investment advice or a recommendation to buy or sell any security. FilingExplorer is not affiliated with or endorsed by this fund. How this brief is compiled

Top 10 positions — 84.1% of the equity book

Changes in the top 10 this quarter: MRTX entered · BCRX entered · PRLD left · NVTA left

# Security Weight before Weight now
1 Seagen Inc. (SGEN) 35.6% 35.5%
2 BeiGene, Ltd. (ONC) 18.8% 15.5%
3 Incyte Corporation (INCY) 9.8% 12.1%
4 Kodiak Sciences Inc. (KOD) 6.2% 6.1%
5 ACADIA Pharmaceuticals Inc. (ACAD) 3.1% 4.8%
6 BioMarin Pharmaceutical Inc. (BMRN) 2.6% 3.3%
7 Ascendis Pharma A/S (ASND) 3.2% 3.0%
8 argenx SE (ARGX) 1.5% 1.9%
9 Mirati Therapeutics, Inc. (MRTX) 1.1% 1.0% Entered the top 10
10 BioCryst Pharmaceuticals, Inc. (BCRX) 0.8% 0.9% Entered the top 10
— Prelude Therapeutics Inc. (PRLD) 1.4% 0.6% Left the top 10
— Invitae Corporation (NVTA) 1.2% 0.7% Left the top 10

Weights are each position's reported value as a share of the fund's reported equity positions (options and principal-amount holdings excluded).