IDEAYA BIOSCIENCES INC (IDYA) Institutional Ownership Changes & 13F Activity

IDEAYA BIOSCIENCES INC (IDYA). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Alliancebernstein L.P., Deerfield Management Company, L.P., Baker Bros. Advisors Lp, Price T Rowe Associates Inc, and Ensign Peak Advisors, Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+34,679+47.6%107,585$4.01MQ2 2026Sep 09, 2026
Citadel Advisors LlcSell-378,962-55.8%300,438$11.20MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+20,00020,000$745.40KQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-2,719-2.8%93,936$3.50MQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+5,6865,686$211.92KQ2 2026Aug 19, 2026
Seven Fleet Capital Management LpSell-48,418-56.1%37,865$1.41MQ2 2026Aug 17, 2026
Alliancebernstein L.P.Buy+1,526,735+1514.8%1,627,521$54.23MQ2 2026Aug 14, 2026
Deerfield Management Company, L.P.Buy+1,184,495+77.4%2,714,503$101.17MQ2 2026Aug 14, 2026
Baker Bros. Advisors LpBuy+1,063,515+26.9%5,010,030$186.72MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+891,582+67.8%2,207,451$82.27MQ2 2026Aug 14, 2026
Ensign Peak Advisors, IncSell-632,322-70.3%267,182$9.96MQ2 2026Aug 14, 2026
Sio Capital Management, LlcBuy+480,383480,383$17.90MQ2 2026Aug 14, 2026
Logos Global Management LpSell-450,000-13.0%3,000,000$111.81MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-424,003-25.6%1,231,614$45.90MQ2 2026Aug 14, 2026
Rtw Investments, LpBuy+370,370370,370$13.80MQ2 2026Aug 14, 2026
Millennium Management LlcSell-218,480-95.4%10,500$391.33KQ2 2026Aug 14, 2026
Sofinnova Investments, Inc.Sell-206,667-18.3%925,119$34.48MQ2 2026Aug 14, 2026
Burkehill Global Management, LpBuy+200,000200,000$7.45MQ2 2026Aug 14, 2026
Sphera Funds Management Ltd.Buy+196,408196,408$7.32MQ2 2026Aug 14, 2026
Verition Fund Management LlcBuy+184,054184,054$6.86MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+145,220145,220$5.41MQ2 2026Aug 14, 2026
Redmile Group, LlcBuy+119,085+22.9%640,202$23.86MQ2 2026Aug 14, 2026
Adage Capital Partners Gp, L.L.C.Sell-108,109-3.8%2,715,391$101.20MQ2 2026Aug 14, 2026
Integral Health Asset Management, LlcBuy+100,000100,000$3.73MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+89,220+42.8%297,565$11.09MQ2 2026Aug 14, 2026
Odyssean, LlcBuy+87,308+571.6%102,582$3.82MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+84,052+8.9%1,026,143$38.24MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-77,911-65.4%41,205$1.54MQ2 2026Aug 14, 2026
Squarepoint Ops LlcSell-74,060-74.6%25,218$939.88KQ2 2026Aug 14, 2026
Man Group PlcBuy+73,646+42.9%245,492$9.15MQ2 2026Aug 14, 2026
Showing 30 of 279

Frequently asked questions about IDYA activity

  • Which institutional owners are buying IDYA?

    Institutional owners buying IDYA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IDYA activity?

    "Buy" means an investor increased their reported position in IDYA compared to the prior reporting period. This reflects growing exposure to IDEAYA BIOSCIENCES INC (IDYA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IDYA increasing?

    Institutional interest in IDYA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.