IDEAYA Biosciences, Inc.

IDYANASDAQ

$37.36-0.45 (-1.19%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

IDEAYA Biosciences, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+37.4%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
FMR LLC	14.64%	$526M	0.02%	Not reported
BlackRock, Inc.	9.23%	$331M	0.00%	Not reported
Jupiter Topco LLC	8.90%	$320M	0.13%	Not reported
Capital Research Global Investors	5.55%	$199M	0.03%	Not reported
Baker Bros. Advisors LP	5.20%	$187M	0.94%	Add 26.95%
State Street Corp	4.72%	$170M	0.01%	Not reported
Vanguard Capital Management LLC	4.29%	$154M	0.00%	Not reported
Logos Global Management LP	3.11%	$112M	4.81%	Reduce 13.04%
Adage Capital Partners GP, L.L.C.	2.82%	$101M	0.14%	Reduce 3.83%
Deerfield Management Company, L.P.	2.82%	$101M	1.06%	Add 77.42%
Geode Capital Management, LLC	2.52%	$90.4M	0.00%	Not reported
Morgan Stanley	2.00%	$72M	0.00%	Not reported
Dimensional Fund Advisors LP	1.72%	$61.9M	0.01%	Not reported
Alliancebernstein L.P.	1.69%	$54.2M	0.02%	Not reported
Fiera Capital Corp	1.50%	$53.9M	0.20%	Reduce 42.78%
Federated Hermes, Inc.	1.49%	$53.4M	0.08%	Not reported
GSK plc	1.38%	$49.7M	8.25%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	1.32%	$47.3M	0.05%	Add 15.32%
Goldman Sachs Group Inc	1.28%	$45.9M	0.00%	Not reported
Bank of America Corp	1.06%	$38.2M	0.00%	Not reported
Sofinnova Investments, Inc.	0.96%	$34.5M	1.78%	Reduce 18.26%
Arrowstreet Capital, Limited Partnership	0.93%	$33.2M	0.01%	Not reported
Fisher Asset Management, LLC	0.88%	$31.7M	0.01%	Reduce 3.56%
Vanguard Portfolio Management LLC	0.85%	$30.6M	0.00%	Not reported
Northern Trust Corp	0.83%	$30M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.78%	$28.1M	0.00%	Not reported
Pictet Asset Management Holding SA	0.74%	$26.6M	0.03%	Reduce 0.45%
UBS Group AG	0.68%	$24.5M	0.00%	Not reported
Nuveen, LLC	0.66%	$23.9M	0.01%	Not reported
Redmile Group, LLC	0.66%	$23.9M	1.60%	Not reported
Vanguard Fiduciary Trust Co	0.64%	$23.1M	0.01%	Not reported
Qube Research & Technologies Ltd	0.61%	$22.1M	0.02%	Not reported
Aberdeen Group plc	0.58%	$20.9M	0.03%	Add 2.80%
New York State Common Retirement Fund	0.52%	$18.7M	0.02%	Not reported
DAFNA Capital Management LLC	0.52%	$18.5M	3.53%	Add 4.30%
Sio Capital Management, LLC	0.50%	$17.9M	2.96%	New Not reported
Tang Capital Management LLC	0.47%	$16.8M	0.76%	Not reported
Affinity Asset Advisors, LLC	0.42%	$14.9M	0.67%	New Not reported
Walleye Capital LLC	0.40%	$14.4M	0.05%	Not reported
RTW Investments, LP	0.38%	$13.8M	0.12%	New Not reported
Rhenman & Partners Asset Management AB	0.36%	$12.8M	1.21%	Add 34.56%
BIT Capital GmbH	0.32%	$11.6M	0.34%	New Not reported
General American Investors Co Inc	0.32%	$11.5M	0.68%	Add 9.98%
First Trust Advisors LP	0.32%	$11.4M	0.01%	Add 556.99%
Citadel Advisors LLC	0.31%	$11.2M	0.00%	Not reported
Wells Fargo & Company	0.31%	$11.1M	0.00%	Not reported
Balyasny Asset Management L.P.	0.31%	$11.1M	0.01%	Not reported
JPMorgan Chase & Co	0.28%	$9.93M	0.00%	Not reported
Ensign Peak Advisors, Inc	0.28%	$9.96M	0.02%	Reduce 70.30%
Bank of New York Mellon Corp	0.28%	$9.88M	0.00%	Not reported

50 of 265 holders

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