IDEAYA 바이오사이언스, Inc.
US ˙ NasdaqGS ˙ US45166A1025

SecurityIDYA / IDEAYA Biosciences, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership149,033 shares
Latest Disclosed Value $ 3,132,673
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 3.54% increase in ownership of IDYA / IDEAYA Biosciences, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 149,033 shares of IDEAYA Biosciences, Inc. (US:IDYA) valued at $3,132,674 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 143,942 shares of IDEAYA Biosciences, Inc.. This represents a change in shares of 3.54% during the quarter. The current value of the position is $4,216,144 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-08-26 2025-06-30 NP Ideaya Biosciences EC US45166A1025 149,033 5,091 3.54 3,133 32.88 0.0703
2025-05-28 2025-03-31 NP Ideaya Biosciences EC US45166A1025 143,942 545 0.38 2,358 -36.04 0.0566
2025-02-25 2024-12-31 NP Ideaya Biosciences EC US45166A1025 143,397 -20,421 -12.47 3,685 -28.98 0.0805
2024-11-26 2024-09-30 NP Ideaya Biosciences EC US45166A1025 163,818 38,636 30.86 5,190 18.07 0.0982
2024-08-26 2024-06-30 NP Ideaya Biosciences EC US45166A1025 125,182 9,852 8.54 4,395 -13.14 0.0895
2024-05-28 2024-03-31 NP Ideaya Biosciences EC US45166A1025 115,330 6,103 5.59 5,061 30.21 0.1056
2024-02-26 2023-12-31 NP Ideaya Biosciences EC US45166A1025 109,227 17,158 18.64 3,886 56.44 0.0829
2023-11-28 2023-09-30 NP Ideaya Biosciences EC US45166A1025 92,069 -1,808 -1.93 2,484 12.60 0.0648
2023-08-25 2023-06-30 NP Ideaya Biosciences EC US45166A1025 93,877 23,263 32.94 2,206 127.66 0.0523
2023-05-26 2023-03-31 NP Ideaya Biosciences EC US45166A1025 70,614 2,100 3.07 970 -22.11 0.0258
2023-02-24 2022-12-31 NP Ideaya Biosciences EC US45166A1025 68,514 11,125 19.39 1,245 45.33 0.0342
2022-11-25 2022-09-30 NP Ideaya Biosciences EC US45166A1025 57,389 5,823 11.29 856 20.39 0.0245
2022-08-25 2022-06-30 NP Ideaya Biosciences EC US45166A1025 51,566 0 0.00 712 23.22 0.0196
2022-05-26 2022-03-31 NP Ideaya Biosciences EC US45166A1025 51,566 1,266 2.52 577 -51.47 0.0134
2022-02-25 2021-12-31 NP Ideaya Biosciences EC US45166A1025 50,300 0 0.00 1,189 -7.25 0.0258
2021-11-24 2021-09-30 NP Ideaya Biosciences EC US45166A1025 50,300 8,494 20.32 1,282 46.18 0.0282
2021-08-26 2021-06-30 NP Ideaya Biosciences EC US45166A1025 41,806 15,764 60.53 878 43.54 0.0188
2021-05-27 2021-03-31 NP Ideaya Biosciences EC US45166A1025 26,042 -1,792 -6.44 612 57.07 0.0139
2021-02-25 2020-12-31 NP Ideaya Biosciences EC US45166A1025 27,834 0 0.00 390 11.46 0.0100
2020-11-25 2020-09-30 NP Ideaya Biosciences EC US45166A1025 27,834 7,280 35.42 350 19.52 0.0112
2020-08-27 2020-06-30 NP Ideaya Biosciences EC US45166A1025 20,554 20,554 292 0.0095
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.