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Equibles

DEERFIELD MANAGEMENT COMPANY, L.P.

Position in IDYA — IDEAYA Biosciences, Inc.

CIK 1009258 NEW YORK, NY
Back to IDYA Full portfolio

Position in IDYA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$101,169,526
+$50,189,660 QoQ
Shares Held
2,714,503
+77.4% QoQ
Ownership
2.81%
of shares outstanding
% of Portfolio
1.71%
of 13F equity value
Holder Rank
#10
of 286 holders
Holding Since
Sep 2022
16 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IDYA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

DEERFIELD MANAGEMENT COMPANY, L.P. holds $3,763,549,987 across 45 Biotechnology names. IDYA ranks #16 (2.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RVMD
Revolution Medicines, Inc.
 2,392,000 $447,973,760
2 PRAX
Praxis Precision Medicines, Inc.
 963,351 $322,520,281
3 LEGN
Legend Biotech Corp
 8,137,638 $235,014,985
4 COGT
Cogent Biosciences, Inc.
 5,006,104 $193,736,224
5 GMAB
Genmab A/S
 6,865,000 $188,581,550
6 VERA
Vera Therapeutics, Inc.
 3,916,400 $168,052,724
7 IONS
Ionis Pharmaceuticals Inc
 1,979,669 $156,967,955
8 CELC
Celcuity Inc.
 1,451,014 $151,805,084

All Filings in IDYA

Export CSV
16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $101,169,526 2,714,503
2026-03-31 $50,979,866 1,530,008
2025-12-31 $74,430,696 2,153,043
2025-09-30 $58,584,300 2,153,043
2025-06-30 $82,299,837 3,915,311
2025-03-31 $53,522,485 3,267,551
2024-12-31 $70,315,200 2,736,000
2024-09-30 $82,177,920 2,594,000
2024-06-30 $73,629,637 2,097,113
2024-03-31 $115,417,212 2,630,292
2023-12-31 $93,585,789 2,630,292
2023-09-30 $61,207,583 2,268,628
2023-06-30 $53,312,758 2,268,628
2023-03-31 $23,940,012 1,743,628
2022-12-31 $31,681,720 1,743,628
2022-09-30 $26,014,929 1,743,628