Braidwell LP

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), Braidwell LP reported 51 stock positions worth $1.8 billion. Its top holding was Apogee Therapeutics (APGE) at 6.9% of the portfolio, followed by Neurocrine Biosciences (NBIX, 5.7%) and Argenx SE - ADR (ARGX, 4.9%). Compared with Q4 2023, it opened 16 new positions, sold out of 12, added to 13 and reduced 14. The biggest buy was Apogee Therapeutics (APGE, shares +171%) and the biggest sale an exit from Immunocore Holdings PLC-ADR (IMCR).

Most Recent 13F
Q2 2026
Location
STAMFORD, CT
CIK
0001920938
Portfolio Value
$1.8B (Q1 2024)
SEC Filing
0001920938-24-000004 ↗ filed May 15, 2024

Holdings Value

0$1.0B$2.0B$3.0B Q1 2024: $1.8B $1.8B Q1 2024 Q2 2024: $2.0B Q2 2024 Q3 2024: $2.3B Q3 2024 Q4 2024: $2.2B Q4 2024 Q1 2025: $1.9B Q1 2025 Q2 2025: $2.1B Q2 2025 Q3 2025: $2.5B Q3 2025 Q4 2025: $2.6B Q4 2025 Q1 2026: $2.6B Q1 2026 Q2 2026: $2.6B Q2 2026

Holdings 51 stocks · $1.8B

APGE Apogee Therapeutics Inc. 6.90% 1,842,515 $122.4M Add +170.5%
NBIX Neurocrine Biosciences Inc. 5.68% 730,209 $100.7M Add +2.1%
ARGX Argenx SE - ADR 4.88% 219,824 $86.5M Add +43.5%
PCVX Vaxcyte Inc. 4.67% 1,212,703 $82.8M Reduce -6.0%
LEGN Legend Biotech Corp.-ADR 3.93% 1,243,795 $69.8M Add +121.1%
PEN Penumbra Inc. 3.72% 295,892 $66.0M Add +32.8%
MRVI Maravai Lifesciences Hldgs-A 3.53% 7,221,960 $62.6M Add +43.3%
VKTX Viking Therapeutics Inc. 3.30% 713,100 $58.5M New
XENE Xenon Pharmaceuticals Inc. 3.17% 1,308,011 $56.3M Reduce -20.6%
IRTC Irhythm Holdings Inc. 3.16% 483,257 $56.1M Reduce -14.9%
ALGN Align Technology Inc. 3.13% 169,252 $55.5M Add +15.7%
GH Guardant Health Inc. 2.88% 2,476,804 $51.1M Add +226.4%
CGON CG Oncology Inc. 2.80% 1,130,235 $49.6M New
KROS Keros Therapeutics Inc. 2.75% 737,379 $48.8M Reduce -34.1%
TMDX Transmedics Group Inc. 2.56% 614,531 $45.4M Add +422.1%
AVDL Avadel Pharmaceuticals plc 2.54% 2,668,549 $45.1M New
GKOS Glaukos Corp. 2.40% 450,676 $42.5M Add +85.7%
FNA Paragon 28 Inc. 2.34% 3,365,609 $41.6M Add +0.1%
ISRG Intuitive Surgical Inc. 2.26% 100,500 $40.1M New
DAWN Day One Biopharmaceuticals I 2.02% 2,173,704 $35.9M Reduce -48.4%
FDMT 4D Molecular Therapeutics Inc. 1.89% 1,052,485 $33.5M New
KIDS Orthopediatrics Corp. 1.82% 1,107,770 $32.3M No change
KRYS Krystal Biotech Inc. 1.78% 177,089 $31.5M Reduce -9.7%
RLAY Relay Therapeutics Inc. 1.75% 3,743,999 $31.1M New
IRWD Ironwood Pharmaceuticals Inc. 1.71% 3,489,843 $30.4M New
KNSA Kiniksa Pharmaceuticals Ltd. 1.55% 1,392,716 $27.5M New
TMO Thermo Fisher Scientific Inc. 1.54% 47,149 $27.4M Reduce -37.8%
RGEN Repligen Corp. 1.48% 142,836 $26.3M Add +39.1%
NVRO Nevro LLC filed as NEVRO CORP 1.45% 1,776,368 $25.7M No change
INSP Inspire Medical Systems Inc. 1.23% 101,492 $21.8M Reduce -45.0%
CGEM Cullinan Therapeutics Inc. 1.19% 1,240,865 $21.1M No change
TRML Tourmaline Bio Inc. 1.17% 906,820 $20.8M No change
LXEO Lexeo Therapeutics Inc. 1.17% 1,322,277 $20.7M New
SYRE Spyre Therapeutics Inc. 1.10% 515,000 $19.5M No change
BMRN Biomarin Pharmaceutical Inc. 1.08% 218,896 $19.1M New
GPCR Structure Therapeutics Inc. 1.05% 435,823 $18.7M Add +55.6%
BCRX Biocryst Pharmaceuticals Inc. 0.97% 3,379,577 $17.2M Reduce -40.9%
ITOS Iteos Therapeutics Inc. 0.89% 1,162,374 $15.9M New
MLYS Mineralys Therapeutics Inc. 0.83% 1,147,154 $14.8M Reduce -43.3%
ALEC Alector Inc. 0.81% 2,380,704 $14.3M Reduce -28.4%
ARQT Arcutis Biotherapeutics Inc. 0.73% 1,300,000 $12.9M New
ELEV Elevation Oncology Inc. 0.69% 2,377,647 $12.2M New
BBIO Bridgebio Pharma Inc. 0.60% 344,827 $10.7M New
IOVA Iovance Biotherapeutics Inc. 0.55% 660,022 $9.8M New
DCPH Deciphera Pharmaceuticals Inc. 0.54% 609,643 $9.6M Reduce -47.9%
OLMA Olema Pharmaceuticals Inc. 0.45% 704,344 $8.0M New
LUNG Pulmonx Corp. 0.39% 752,541 $7.0M Reduce -4.5%
DBV TECHNOLOGIES S A 0.33% 7,843,285 $5.9M No change
OM Outset Medical Inc. 0.30% 2,400,427 $5.3M No change
ADPT Adaptive Biotechnologies 0.25% 1,357,490 $4.4M No change
HROW Harrow Inc. 0.09% 125,967 $1.7M Reduce -91.6%
Other holdings (19): bonds, preferreds, convertibles and warrants · $1.3B (not counted above)
SecurityClassShares / PrincipalValueChange
GUARDANT HEALTH INC (GH 0 11/15/27) NOTE 11/1 · principal 268,252,000$183.6MNo change
BRIDGEBIO PHARMA INC (BBIO 2.5 03/15/27) NOTE 2.500% 3/1 · principal 135,838,000$146.2MAdd +18.8%
EXACT SCIENCES CORP (EXAS 0.375 03/01/28) NOTE 0.375% 3/0 · principal 144,000,000$133.1MAdd +9.9%
NOVOCURE LTD (NVCR 0 11/01/25) NOTE 11/0 · principal 135,834,000$124.6MNo change
NUVASIVE INC (GMED 0.375 03/15/25) NOTE 0.375% 3/1 · principal 114,206,000$109.0MAdd +41.8%
NEOGENOMICS INC (NEO 0.25 01/15/28) NOTE 0.250% 1/1 · principal 103,580,000$82.6MAdd +57.9%
DEXCOM INC (DXCM 0.25 11/15/25) NOTE 0.250%11/1 · principal 65,000,000$71.6MAdd +44.4%
INSMED INC (INSM 1.75 01/15/25) NOTE 1.750% 1/1 · principal 64,887,000$69.4MAdd +23.9%
INSULET CORPORATION (PODD 0.375 09/01/26) NOTE 0.375% 9/0 · principal 66,000,000$68.9MAdd +4.8%
SAREPTA THERAPEUTICS INC (SRPT 1.25 09/15/27) NOTE 1.250% 9/1 · principal 50,666,000$59.3MNo change
BRIDGEBIO PHARMA INC (BBIO 2.25 02/01/29) NOTE 2.250% 2/0 · principal 67,294,000$55.1MNo change
IRONWOOD PHARMACEUTICALS (IRWD 1.5 06/15/26) NOTE 1.500% 6/1 · principal 52,740,000$53.7MAdd +240.3%
TRAVERE THERAPEUTICS INC (TVTX 2.5 09/15/25) NOTE 2.500% 9/1 · principal 56,031,000$49.6MNo change
KARYOPHARM THERAPEUTICS (KPTI 3 10/15/25) NOTE 3.000%10/1 · principal 65,976,000$35.8MNo change
ALPHATEC HOLDINGS INC (ATEC 0.75 08/01/26) NOTE 0.750% 8/0 · principal 32,434,000$33.9MAdd +21.3%
IRONWOOD PHARMACEUTICALS (IRWD 0.75 06/15/24) NOTE 0.750% 6/1 · principal 20,000,000$19.9MReduce -46.7%
HAEMONETICS CORP (HAE 0 03/01/26) NOTE 3/0 · principal 21,500,000$19.8MNew
CUTERA INC (CUTR 4 06/01/29) NOTE 4.000% 6/0 · principal 29,000,000$6.4MNo change
CUTERA INC (CUTR 2.25 06/01/28) NOTE 2.250% 6/0 · principal 25,240,000$5.7MReduce -20.9%

Total filed on the 13F, all lines: $3.1B.

Portfolio Sells Q4 2023 → Q1 2024

IMCR Immunocore Holdings PLC-ADR Sold out 0.00% −3.16
DAWN Day One Biopharmaceuticals I Reduce -48.4% 2.02% −2.63
XENE Xenon Pharmaceuticals Inc. Reduce -20.6% 3.17% −2.56
LNTH Lantheus Holdings Inc. Sold out 0.00% −2.32
BCRX Biocryst Pharmaceuticals Inc. Reduce -40.9% 0.97% −1.62
INSP Inspire Medical Systems Inc. Reduce -45.0% 1.23% −1.61
TMO Thermo Fisher Scientific Inc. Reduce -37.8% 1.54% −1.49
PCVX Vaxcyte Inc. Reduce -6.0% 4.67% −1.45
IRTC Irhythm Holdings Inc. Reduce -14.9% 3.16% −1.44
AMGN Amgen Inc. Sold out 0.00% −1.27
ALEC Alector Inc. Reduce -28.4% 0.81% −1.20
HROW Harrow Inc. Reduce -91.6% 0.09% −1.17
TERN Terns Pharmaceuticals Inc. Sold out 0.00% −1.14
THRD Third Harmonic Bio Inc. Sold out 0.00% −1.09
DCPH Deciphera Pharmaceuticals Inc. Reduce -47.9% 0.54% −0.89
MRUS Merus NV Sold out 0.00% −0.77
DYN Dyne Therapeutics Inc. Sold out 0.00% −0.76
DNLI Denali Therapeutics Inc. Sold out 0.00% −0.75
RAPT THERAPEUTICS INC Sold out 0.00% −0.73
KROS Keros Therapeutics Inc. Reduce -34.1% 2.75% −0.61
VRDN Viridian Therapeutics Inc. Sold out 0.00% −0.53
MLYS Mineralys Therapeutics Inc. Reduce -43.3% 0.83% −0.48
LUNG Pulmonx Corp. Reduce -4.5% 0.39% −0.37
HLVX Hillevax Inc. Sold out 0.00% −0.25
KRYS Krystal Biotech Inc. Reduce -9.7% 1.78% −0.06
CMPX Compass Therapeutics Inc. Sold out 0.00% −0.04

Portfolio Buys Q4 2023 → Q1 2024

APGE Apogee Therapeutics Inc. Add +170.5% 6.90% +5.46
VKTX Viking Therapeutics Inc. New 3.30% +3.30
CGON CG Oncology Inc. New 2.80% +2.80
AVDL Avadel Pharmaceuticals plc New 2.54% +2.54
ISRG Intuitive Surgical Inc. New 2.26% +2.26
FDMT 4D Molecular Therapeutics Inc. New 1.89% +1.89
TMDX Transmedics Group Inc. Add +422.1% 2.56% +1.86
RLAY Relay Therapeutics Inc. New 1.75% +1.75
IRWD Ironwood Pharmaceuticals Inc. New 1.71% +1.71
KNSA Kiniksa Pharmaceuticals Ltd. New 1.55% +1.55
LEGN Legend Biotech Corp.-ADR Add +121.1% 3.93% +1.37
GH Guardant Health Inc. Add +226.4% 2.88% +1.33
LXEO Lexeo Therapeutics Inc. New 1.17% +1.17
BMRN Biomarin Pharmaceutical Inc. New 1.08% +1.08
MRVI Maravai Lifesciences Hldgs-A Add +43.3% 3.53% +1.03
GKOS Glaukos Corp. Add +85.7% 2.40% +0.94
ITOS Iteos Therapeutics Inc. New 0.89% +0.89
ARQT Arcutis Biotherapeutics Inc. New 0.73% +0.73
ELEV Elevation Oncology Inc. New 0.69% +0.69
BBIO Bridgebio Pharma Inc. New 0.60% +0.60
IOVA Iovance Biotherapeutics Inc. New 0.55% +0.55
ARGX Argenx SE - ADR Add +43.5% 4.88% +0.47
OLMA Olema Pharmaceuticals Inc. New 0.45% +0.45
GPCR Structure Therapeutics Inc. Add +55.6% 1.05% +0.19
ALGN Align Technology Inc. Add +15.7% 3.13% +0.10
RGEN Repligen Corp. Add +39.1% 1.48% +0.09
PEN Penumbra Inc. Add +32.8% 3.72% −0.51
FNA Paragon 28 Inc. Add +0.1% 2.34% −0.82
NBIX Neurocrine Biosciences Inc. Add +2.1% 5.68% −1.45

Notes & Other Activity Q4 2023 → Q1 2024

BRIDGEBIO PHARMA INC (BBIO 2.5 03/15/27) NOTE 2.500% 3/1 · principal Add +18.8% 135,838,000 $146.2M
EXACT SCIENCES CORP (EXAS 0.375 03/01/28) NOTE 0.375% 3/0 · principal Add +9.9% 144,000,000 $133.1M
ASCENDIS PHARMA A/S (ASND 2.25 04/01/28) NOTE 2.250% 4/0 · principal Sold out 126,897,000 $130.4Mbefore exit
NUVASIVE INC (GMED 0.375 03/15/25) NOTE 0.375% 3/1 · principal Add +41.8% 114,206,000 $109.0M
NEOGENOMICS INC (NEO 0.25 01/15/28) NOTE 0.250% 1/1 · principal Add +57.9% 103,580,000 $82.6M
DEXCOM INC (DXCM 0.25 11/15/25) NOTE 0.250%11/1 · principal Add +44.4% 65,000,000 $71.6M
INSMED INC (INSM 1.75 01/15/25) NOTE 1.750% 1/1 · principal Add +23.9% 64,887,000 $69.4M
INSULET CORPORATION (PODD 0.375 09/01/26) NOTE 0.375% 9/0 · principal Add +4.8% 66,000,000 $68.9M
TANDEM DIABETES CARE INC (TNDM 1.5 05/01/25) NOTE 1.500% 5/0 · principal Sold out 71,051,000 $67.2Mbefore exit
IRONWOOD PHARMACEUTICALS (IRWD 1.5 06/15/26) NOTE 1.500% 6/1 · principal Add +240.3% 52,740,000 $53.7M
ALPHATEC HOLDINGS INC (ATEC 0.75 08/01/26) NOTE 0.750% 8/0 · principal Add +21.3% 32,434,000 $33.9M
IRONWOOD PHARMACEUTICALS (IRWD 0.75 06/15/24) NOTE 0.750% 6/1 · principal Reduce -46.7% 20,000,000 $19.9M
HAEMONETICS CORP (HAE 0 03/01/26) NOTE 3/0 · principal New 21,500,000 $19.8M
INVITAE CORP (NVTA 2 09/01/24) NOTE 2.000% 9/0 · principal Sold out 16,781,000 $14.9Mbefore exit
TRAVERE THERAPEUTICS INC (TVTX 2.25 03/01/29) NOTE 2.250% 3/0 · principal Sold out 16,850,000 $11.1Mbefore exit
NEOGENOMICS INC (NEO 1.25 05/01/25) NOTE 1.250% 5/0 · principal Sold out 10,000,000 $9.4Mbefore exit
CUTERA INC (CUTR 2.25 06/01/28) NOTE 2.250% 6/0 · principal Reduce -20.9% 25,240,000 $5.7M
IONIS PHARMACEUTICALS IN (IONS 0 04/01/26) NOTE 4/0 · principal Sold out 5,240,000 $5.5Mbefore exit
NANOSTRING TECHNOLOGIES (NSTG 2.625 03/01/25) NOTE 2.625% 3/0 · principal Sold out 3,650,000 $2.7Mbefore exit

Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 83$2.6BCAI, HNGE, GKOS, EWTX, SYRE
Q1 2026 82$2.6BCAI, NBIX, GKOS, CNTA, XENE
Q4 2025 68$2.6BCAI, EWTX, NBIX, GKOS, NUVL
Q3 2025 64$2.5BCAI, XENE, CGON, NBIX, KRYS
Q2 2025 45$2.1BCAI, NBIX, XENE, ARGX, KRYS
Q1 2025 52$1.9BNBIX, LEGN, ARGX, XENE, ALGN
Q4 2024 59$2.2BNBIX, XENE, LEGN, CGON, GH
Q3 2024 65$2.3BCGON, XENE, NBIX, APGE, APLS
Q2 2024 58$2.0BNBIX, CGON, XENE, APGE, GH
Q1 2024 51$1.8BAPGE, NBIX, ARGX, PCVX, LEGN