IDYA
IDEAYA Biosciences, Inc.$39.63+0.77 (+1.98%)Prev Close$38.86·MCap$3.58B·P/E—·Vol450.8K·Yield—
▲
Buys (12M)
1
$1.65M
▼
Sells (12M)
1
$382.1K
◆
Net Activity
Net Buyer
$1.27M
●
Active Insiders
2
last 12 mo
Over the past 12 months, insider activity at IDEAYA Biosciences, Inc. (IDYA) has been dominated by buying, with 1 insider purchase totaling $1.65M and 1 insider sale totaling $382.1K. The most recent insider transaction was by Ruiz Briseno Andres (officer: Chief Accounting Officer), who sold $382.1K worth of shares on Jul 9, 2026. IDEAYA Biosciences, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $3.58B.
IDYA Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jul 9, 2026 | Ruiz Briseno Andres | officer: Chief Accounting Officer | Sell | 9,550 | $40.01 | $382.1K | 26,466-27% |
| Mar 2, 2026 | Stein Jeffrey | director | Buy | 50,000 | $32.96 | $1.65M | 54,281New Position |
| May 31, 2024 | WHITE MICHAEL ANTHONY | Chief Scientific Officer | Sell | 28,500 | $36.24 | $1.03M | 851-97% |
| May 16, 2024 | Hata Yujiro S | President and CEO | Sell | 175,000 | $42.27 | $7.40M | 708,151 |
| Feb 13, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $46.02 | $92.0K | 24,531 |
| Feb 12, 2024 | Hata Yujiro S | President and CEO | Sell | 99,372 | $45.24 | $4.50M | 677,887 |
| Feb 5, 2024 | Hata Yujiro S | President and CEO | Sell | 628 | $45.00 | $28.3K | 677,891 |
| Jan 24, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $42.03 | $84.1K | 26,531 |
| Jan 17, 2024 | Hata Yujiro S | President and CEO | Sell | 75,000 | $40.15 | $3.01M | 677,887 |
| Jan 17, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $38.01 | $76.0K | 28,531 |
| Dec 19, 2023 | Hata Yujiro S | President and CEO | Sell | 75,000 | $35.03 | $2.63M | 677,887 |
| Dec 19, 2023 | Throne Jason | Chief Legal Officer | Sell | 10,000 | $35.04 | $350.4K | 0Exit |
| Dec 18, 2023 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $34.00 | $68.0K | 30,859 |
| Nov 7, 2023 | Throne Jason | Chief Legal Officer | Sell | 5,163 | $30.09 | $155.4K | 0Exit |
| Sep 14, 2023 | Throne Jason | Chief Legal Officer | Sell | 1,000 | $30.01 | $30.0K | 500-67% |
| Sep 6, 2023 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $30.01 | $60.0K | 32,531 |
| Sep 6, 2023 | Throne Jason | Chief Legal Officer | Sell | 3,837 | $30.03 | $115.2K | 0Exit |
| Aug 31, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 5,000 | $28.87 | $144.4K | 9,303-35% |
| Aug 23, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 978 | $26.40 | $25.8K | 14,303 |
| Aug 18, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 4,022 | $26.38 | $106.1K | 19,203 |
| Aug 11, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 2,500 | $25.05 | $62.6K | 19,303 |
| Aug 11, 2023 | Throne Jason | Chief Legal Officer | Sell | 5,000 | $25.09 | $125.4K | 0Exit |
| Jul 12, 2023 | Throne Jason | Chief Legal Officer | Sell | 9,485 | $23.00 | $218.2K | 0Exit |
| Jun 2, 2023 | Throne Jason | Chief Legal Officer | Sell | 3,985 | $23.02 | $91.7K | 0Exit |
| May 24, 2023 | Throne Jason | Chief Legal Officer | Sell | 500 | $23.00 | $11.5K | 0Exit |
| Oct 7, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $26.36 | $39.5K | 79,789 |
| Sep 9, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 11,500 | $27.42 | $315.3K | 78,989 |
| Sep 9, 2021 | Stone Paul A. | SVP, Chief Financial Officer | Sell | 2,500 | $27.42 | $68.5K | 12,944 |
| Sep 7, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 10,000 | $25.09 | $250.9K | 78,789 |
| Aug 11, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 11,500 | $22.98 | $264.3K | 89,189 |
| Jul 29, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 10,000 | $25.15 | $251.5K | 98,789 |
| Jul 29, 2021 | Throne Jason | SVP, General Counsel | Sell | 10,000 | $25.17 | $251.7K | 0Exit |
| Jul 8, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $22.24 | $33.4K | 98,889 |
| Jul 8, 2021 | Throne Jason | SVP, General Counsel | Sell | 10,000 | $22.24 | $222.4K | 3,532-74% |
| Jun 17, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 5,000 | $22.48 | $112.4K | 98,789 |
| Jun 9, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $20.22 | $30.3K | 98,789 |
| May 13, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 5,000 | $20.22 | $101.1K | 98,789 |
IDYA Insider Buying Activity
The following table shows recent insider purchases of IDEAYA Biosciences, Inc. (IDYA) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 2, 2026 | Stein Jeffrey | director | Buy | 50,000 | $32.96 | $1.65M | 54,281New Position |
IDYA Insider Selling Activity
The following table shows recent insider sales of IDEAYA Biosciences, Inc. (IDYA) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jul 9, 2026 | Ruiz Briseno Andres | officer: Chief Accounting Officer | Sell | 9,550 | $40.01 | $382.1K | 26,466-27% |
| May 31, 2024 | WHITE MICHAEL ANTHONY | Chief Scientific Officer | Sell | 28,500 | $36.24 | $1.03M | 851-97% |
| May 16, 2024 | Hata Yujiro S | President and CEO | Sell | 175,000 | $42.27 | $7.40M | 708,151 |
| Feb 13, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $46.02 | $92.0K | 24,531 |
| Feb 12, 2024 | Hata Yujiro S | President and CEO | Sell | 99,372 | $45.24 | $4.50M | 677,887 |
| Feb 5, 2024 | Hata Yujiro S | President and CEO | Sell | 628 | $45.00 | $28.3K | 677,891 |
| Jan 24, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $42.03 | $84.1K | 26,531 |
| Jan 17, 2024 | Hata Yujiro S | President and CEO | Sell | 75,000 | $40.15 | $3.01M | 677,887 |
| Jan 17, 2024 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $38.01 | $76.0K | 28,531 |
| Dec 19, 2023 | Hata Yujiro S | President and CEO | Sell | 75,000 | $35.03 | $2.63M | 677,887 |
| Dec 19, 2023 | Throne Jason | Chief Legal Officer | Sell | 10,000 | $35.04 | $350.4K | 0Exit |
| Dec 18, 2023 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $34.00 | $68.0K | 30,859 |
| Nov 7, 2023 | Throne Jason | Chief Legal Officer | Sell | 5,163 | $30.09 | $155.4K | 0Exit |
| Sep 14, 2023 | Throne Jason | Chief Legal Officer | Sell | 1,000 | $30.01 | $30.0K | 500-67% |
| Sep 6, 2023 | Ruiz Briseno Andres | See Remarks | Sell | 2,000 | $30.01 | $60.0K | 32,531 |
| Sep 6, 2023 | Throne Jason | Chief Legal Officer | Sell | 3,837 | $30.03 | $115.2K | 0Exit |
| Aug 31, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 5,000 | $28.87 | $144.4K | 9,303-35% |
| Aug 23, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 978 | $26.40 | $25.8K | 14,303 |
| Aug 18, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 4,022 | $26.38 | $106.1K | 19,203 |
| Aug 11, 2023 | Stone Paul A. | Chief Financial Officer | Sell | 2,500 | $25.05 | $62.6K | 19,303 |
| Aug 11, 2023 | Throne Jason | Chief Legal Officer | Sell | 5,000 | $25.09 | $125.4K | 0Exit |
| Jul 12, 2023 | Throne Jason | Chief Legal Officer | Sell | 9,485 | $23.00 | $218.2K | 0Exit |
| Jun 2, 2023 | Throne Jason | Chief Legal Officer | Sell | 3,985 | $23.02 | $91.7K | 0Exit |
| May 24, 2023 | Throne Jason | Chief Legal Officer | Sell | 500 | $23.00 | $11.5K | 0Exit |
| Oct 7, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $26.36 | $39.5K | 79,789 |
| Sep 9, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 11,500 | $27.42 | $315.3K | 78,989 |
| Sep 9, 2021 | Stone Paul A. | SVP, Chief Financial Officer | Sell | 2,500 | $27.42 | $68.5K | 12,944 |
| Sep 7, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 10,000 | $25.09 | $250.9K | 78,789 |
| Aug 11, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 11,500 | $22.98 | $264.3K | 89,189 |
| Jul 29, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 10,000 | $25.15 | $251.5K | 98,789 |
| Jul 29, 2021 | Throne Jason | SVP, General Counsel | Sell | 10,000 | $25.17 | $251.7K | 0Exit |
| Jul 8, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $22.24 | $33.4K | 98,889 |
| Jul 8, 2021 | Throne Jason | SVP, General Counsel | Sell | 10,000 | $22.24 | $222.4K | 3,532-74% |
| Jun 17, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 5,000 | $22.48 | $112.4K | 98,789 |
| Jun 9, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 1,500 | $20.22 | $30.3K | 98,789 |
| May 13, 2021 | Dillon Michael P. | SVP, Chief Scientific Officer | Sell | 5,000 | $20.22 | $101.1K | 98,789 |
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