BAKER BROS ADVISORS LP's Q3 2021 13F: 12 new positions, 10 exits

Form 13F-HR for the quarter ended Sep 30, 2021 · filed Nov 15, 2021 · 116 reported positions · accession 0001104659-21-139109

What changed this quarter

BAKER BROS ADVISORS LP's changes in reported equity positions, Q3 2021
Activity Security Weight before Weight now Change Shares Shares %
Increased Ascendis Pharma A/S (ASND) 2.1% 3.2% +1.1 pts +1M sh +28%
Exited Apellis Pharmaceuticals, Inc. (APLS) 0.6% — −0.6 pts −2.27M sh −100%
Increased Pacific Biosciences of California, Inc. (PACB) 0.5% 0.6% +0.1 pts +2.24M sh +70%
Increased Kodiak Sciences Inc. (KOD) 5.8% 6.2% +0.4 pts +543K sh +4%
Increased Travere Therapeutics, Inc. (TVTX) 0.0% 0.2% +0.2 pts +1.85M sh +991%
Increased bluebird bio, Inc. (BLUE) 0.0% 0.2% +0.2 pts +2.27M sh +1001%
Increased Legend Biotech Corporation (LEGN) 0.3% 0.5% +0.2 pts +699K sh +42%
Exited ADC Therapeutics SA (ADCT) 0.2% — −0.2 pts −1.42M sh −100%
Increased Kymera Therapeutics, Inc. (KYMR) 0.4% 0.6% +0.2 pts +426K sh +22%
Reduced Amarin Corporation plc (AMRN) 0.5% 0.5% 0.0 pts −4.6M sh −17%
Exited Protagonist Therapeutics, Inc. (PTGX) 0.1% — −0.1 pts −455K sh −100%
New DICE Therapeutics, Inc. (DICE) — 0.1% +0.1 pts +588K sh new
New Surrozen, Inc. (SRZN) — 0.1% +0.1 pts +2.5M sh new
Reduced Aurinia Pharmaceuticals Inc. (AUPH) 0.1% 0.1% 0.0 pts −599K sh −54%
Increased Centessa Pharmaceuticals plc (CNTA) 0.0% 0.1% 0.0 pts +727K sh +182%
New Tscan Therapeutics, Inc. (TCRX) — 0.1% +0.1 pts +1.43M sh new
Reduced Invitae Corporation (NVTA) 1.5% 1.2% −0.3 pts −375K sh −4%
Increased Chinook Therapeutics, Inc. (KDNY) 0.1% 0.1% 0.0 pts +823K sh +76%
New Tango Therapeutics, Inc. (TNGX) — 0.0% 0.0 pts +750K sh new
Exited IVERIC bio, Inc. (ISEE) 0.0% — 0.0 pts −1.41M sh −100%
Exited Assembly Biosciences, Inc. (ASMB) 0.0% — 0.0 pts −2.11M sh −100%
Exited Silverback Therapeutics, Inc. (SPRY) 0.0% — 0.0 pts −238K sh −100%
Reduced Novavax, Inc. (NVAX) 0.1% 0.1% 0.0 pts −35,000 sh −24%
Increased Aligos Therapeutics, Inc. (ALGS) 0.1% 0.1% 0.0 pts +466K sh +29%
Exited Chiasma, Inc. (CHMA) 0.0% — 0.0 pts −1.42M sh −100%
New Amryt Pharma plc (AMYT) — 0.0% 0.0 pts +518K sh new
New Kura Oncology, Inc. (KURA) — 0.0% 0.0 pts +304K sh new
New aTyr Pharma, Inc. (ATYR) — 0.0% 0.0 pts +625K sh new
Reduced Mereo BioPharma Group plc (MREO) 0.0% 0.0% 0.0 pts −2.17M sh −88%
Exited Orchard Therapeutics plc (ORTX) 0.0% — 0.0 pts −1.19M sh −100%
New ChemoCentryx, Inc. (CCXI) — 0.0% 0.0 pts +301K sh new
Increased MacroGenics, Inc. (MGNX) 0.0% 0.0% 0.0 pts +242K sh +121%
Increased Aerovate Therapeutics, Inc. (AVTE) 0.1% 0.2% 0.0 pts +224K sh +16%
New Vincerx Pharma, Inc. (VINC) — 0.0% 0.0 pts +241K sh new
Increased Relmada Therapeutics, Inc. (RLMD) 0.0% 0.0% 0.0 pts +124K sh +162%
Increased Biomea Fusion, Inc. (BMEA) 0.0% 0.0% 0.0 pts +231K sh +78%
Increased BioMarin Pharmaceutical Inc. (BMRN) 2.8% 2.6% −0.2 pts +31,200 sh 0%
New Sera Prognostics, Inc. (SERA) — 0.0% 0.0 pts +202K sh new
New Syndax Pharmaceuticals, Inc. (SNDX) — 0.0% 0.0 pts +111K sh new
Increased Immatics N.V. (IMTX) 0.2% 0.3% 0.0 pts +141K sh +3%
Increased Tricida, Inc. (TCDAQ) 0.0% 0.0% 0.0 pts +308K sh +42%
New Surrozen, Inc. (SRZNW) — 0.0% 0.0 pts +833K sh new
Increased Otonomy, Inc. (OTIC) 0.1% 0.1% 0.0 pts +472K sh +7%
Exited Frequency Therapeutics, Inc. (FREQ) 0.0% — 0.0 pts −55,555 sh −100%
Exited Syros Pharmaceuticals, Inc. (SYRS) 0.0% — 0.0 pts −65,497 sh −100%
Increased Cabaletta Bio, Inc. (CABA) 0.0% 0.0% 0.0 pts +25,700 sh +4%
Reduced Opthea Limited (CYVNY) 0.1% 0.1% 0.0 pts −29,265 sh −1%
Increased Incyte Corporation (INCY) 11.9% 9.8% −2.2 pts +393 sh 0%

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 — 83.4% of the equity book

No changes in the top 10 this quarter

# Security Weight before Weight now
1 Seagen Inc. (SGEN) 33.0% 35.6%
2 BeiGene, Ltd. (ONC) 17.7% 18.8%
3 Incyte Corporation (INCY) 11.9% 9.8%
4 Kodiak Sciences Inc. (KOD) 5.8% 6.2%
5 Ascendis Pharma A/S (ASND) 2.1% 3.2%
6 ACADIA Pharmaceuticals Inc. (ACAD) 4.5% 3.1%
7 BioMarin Pharmaceutical Inc. (BMRN) 2.8% 2.6%
8 argenx SE (ARGX) 1.5% 1.5%
9 Prelude Therapeutics Inc. (PRLD) 1.3% 1.4%
10 Invitae Corporation (NVTA) 1.5% 1.2%

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