Casdin Capital, LLC

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 14, 2024), Casdin Capital, LLC reported 35 stock positions worth $1.5 billion. Its top holding was Biolife Solutions (BLFS) at 14.5% of the portfolio, followed by Revolution Medicines (RVMD, 12.4%) and Genedx (WGS, 9.9%). Compared with Q2 2024, it sold out of 3, added to 10 and reduced 6. The biggest buy was Illumina (ILMN, shares +56%) and the biggest sale an exit from Pliant Therapeutics (PLRX).

Most Recent 13F
Q2 2026
Location
New York, NY
CIK
0001534261
Portfolio Value
$1.5B (Q3 2024)
SEC Filing
0000919574-24-006736 ↗ filed Nov 14, 2024

Holdings Value

0$500.0M$1.0B$1.5B$2.0B Q1 2024: $1.3B Q1 2024 Q2 2024: $1.3B Q2 2024 Q3 2024: $1.5B $1.5B Q3 2024 Q4 2024: $1.5B Q4 2024 Q1 2025: $1.2B Q1 2025 Q2 2025: $1.1B Q2 2025 Q3 2025: $1.2B Q3 2025 Q4 2025: $1.6B Q4 2025 Q1 2026: $1.3B Q1 2026 Q2 2026: $2.0B Q2 2026

Holdings 35 stocks · $1.5B

BLFS Biolife Solutions Inc. 14.54% 8,707,165 $218.0M No change
RVMD Revolution Medicines Inc. 12.44% 4,114,283 $186.6M Reduce -6.6%
WGS Genedx Holdings Corp. 9.92% 3,507,164 $148.8M Reduce -0.6%
LAB Standard Biotools Inc. 9.17% 71,254,677 $137.5M Add +11.4%
SRPT Sarepta Therapeutics Inc. 8.94% 1,073,500 $134.1M No change
ILMN Illumina Inc. 6.52% 750,000 $97.8M Add +56.3%
RNAM Avidity Biosciences Inc. 6.38% 2,084,841 $95.8M No change
RLAY Relay Therapeutics Inc. 4.37% 9,251,108 $65.5M Add +9.5%
ALNY Alnylam Pharmaceuticals Inc. 3.12% 170,000 $46.8M No change
EXAS Exact Sciences Corp. 2.95% 650,000 $44.3M No change
NTLA Intellia Therapeutics Inc. 2.74% 2,000,000 $41.1M No change
GPCR Structure Therapeutics Inc. 2.05% 700,000 $30.7M No change
BPMC Blueprint Medicines Corp. 2.01% 326,378 $30.2M No change
DNLI Denali Therapeutics Inc. 1.92% 990,000 $28.8M Reduce -23.9%
CDXS Codexis Inc. 1.66% 8,100,000 $24.9M Add +305.0%
VCYT Veracyte Inc. 1.51% 666,308 $22.7M Reduce -22.3%
NGNE Neurogene Inc. 1.47% 524,616 $22.0M No change
VERV Verve Therapeutics Inc. 1.29% 3,995,571 $19.3M Add +30.6%
BEAM Beam Therapeutics Inc. 1.27% 775,000 $19.0M Add +14.8%
TNYA Tenaya Therapeutics Inc. 0.87% 6,732,971 $13.0M No change
FDMT 4D Molecular Therapeutics Inc. 0.83% 1,150,000 $12.4M Add +43.8%
TSVT 2SEVENTY Bio Inc. 0.63% 2,000,000 $9.4M No change
TNGX Tango Therapeutics Inc. 0.61% 1,188,349 $9.2M No change
SNDX Syndax Pharmaceuticals Inc. 0.61% 475,000 $9.1M Add +216.7%
GH Guardant Health Inc. 0.54% 350,000 $8.0M Add +250.0%
CTNM Contineum Therapeutics Inc. Class A 0.38% 296,666 $5.7M No change
IPSC Century Therapeutics Inc. 0.37% 3,212,316 $5.5M Reduce -38.1%
GRAL Grail Inc. 0.32% 350,000 $4.8M Add +337.5%
ABSI Absci Corp. 0.25% 973,260 $3.7M No change
PACB Pacific Biosciences of Calif 0.12% 1,035,859 $1.8M No change
PRME Prime Medicine Inc. 0.09% 367,175 $1.4M No change
EXAI Exscientia Ltd. 0.07% 213,900 $1.0M No change
GLUE Monte Rosa Therapeutics Inc. 0.03% 86,014 $456K Reduce -67.0%
DNA Ginkgo Bioworks Holdings Inc. 0.02% 36,493 $297K No change
KRON Kronos Bio Inc. 0.01% 123,839 $124K No change

Portfolio Sells Q2 2024 → Q3 2024

PLRX Pliant Therapeutics Inc. Sold out 0.00% −0.82
IPSC Century Therapeutics Inc. Reduce -38.1% 0.37% −0.64
RVMD Revolution Medicines Inc. Reduce -6.6% 12.44% −0.62
DNLI Denali Therapeutics Inc. Reduce -23.9% 1.92% −0.38
KYTX Kyverna Therapeutics Inc. Sold out 0.00% −0.33
GLUE Monte Rosa Therapeutics Inc. Reduce -67.0% 0.03% −0.04
OMIC Singular Genomics Systems Inc. Sold out 0.00% −0.03
VCYT Veracyte Inc. Reduce -22.3% 1.51% +0.09
WGS Genedx Holdings Corp. Reduce -0.6% 9.92% +2.88

Portfolio Buys Q2 2024 → Q3 2024

ILMN Illumina Inc. Add +56.3% 6.52% +2.70
CDXS Codexis Inc. Add +305.0% 1.66% +1.19
LAB Standard Biotools Inc. Add +11.4% 9.17% +0.52
SNDX Syndax Pharmaceuticals Inc. Add +216.7% 0.61% +0.37
GH Guardant Health Inc. Add +250.0% 0.54% +0.31
GRAL Grail Inc. Add +337.5% 0.32% +0.23
RLAY Relay Therapeutics Inc. Add +9.5% 4.37% +0.16
VERV Verve Therapeutics Inc. Add +30.6% 1.29% +0.15
BEAM Beam Therapeutics Inc. Add +14.8% 1.27% +0.06
FDMT 4D Molecular Therapeutics Inc. Add +43.8% 0.83% −0.45

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 43$2.0BRVMD, RLAY, WGS, BLFS, ILMN
Q1 2026 40$1.3BRVMD, WGS, RLAY, BLFS, LAB
Q4 2025 38$1.6BWGS, RVMD, BLFS, LAB, RLAY
Q3 2025 32$1.2BWGS, BLFS, RVMD, LAB, RNAM
Q2 2025 33$1.1BWGS, BLFS, RVMD, LAB, ILMN
Q1 2025 44$1.2BWGS, BLFS, RVMD, LAB, RNAM
Q4 2024 38$1.5BWGS, BLFS, RVMD, SRPT, LAB
Q3 2024 35$1.5BBLFS, RVMD, WGS, LAB, SRPT
Q2 2024Amended 38$1.3BBLFS, RVMD, SRPT, LAB, WGS
Q1 2024 36$1.3BRVMD, LAB, BLFS, SRPT, RLAY