IDEAYA Biosciences, Inc. (IDYA) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

88,826,562Shares Outstanding

3,534,580Shares held by institutions

$108,723,681Value of institutional holdings

105.55%Institutional ownership %

3.75%Shares Changed QoQ

235No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, IDEAYA Biosciences, Inc. (NASDAQ:IDYA) is held by 235 institutional firms.

These investors collectively held 105.5% of the company's total shares outstanding in December 2025, down from 112.5% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 3.75%, with a year-over-year an increase of 15.20% in the count of filers.
A review of institutional activity for IDEAYA Biosciences shows 129 of 235 filers increasing their positions, while 73 reduced their stake, and 33 remained unchanged.
This class of investors increased its holdings in IDEAYA Biosciences to 93.76Mn shares for the 13F-cycle ending December 2025, up by 3.39Mn shares quarter on quarter, and up 1.88Mn shares year over year.
FMR LLC continues to be the largest institutional holder of IDEAYA Biosciences as of December 31, 2025, with a position of 13.15Mn shares, representing 14.80% of the company's outstanding stock.
Among the most significant buyers of IDEAYA Biosciences during December 2025 were GSK plc (1.33Mn), STATE STREET CORP (893.71K), Logos Global Management LP (875.00K), JANUS HENDERSON GROUP PLC (758.12K), First Turn Management, LLC (723.65K).
Leading sellers of IDEAYA Biosciences stock in December 2025 included Point72 Asset Management, L.P. (1.97Mn), Capital Research Global Investors (1.27Mn), FEDERATED HERMES, INC. (1.23Mn), CITADEL ADVISORS LLC (357.64K), EVENTIDE ASSET MANAGEMENT, LLC (341.63K).
The top 10 institutional holders of IDEAYA Biosciences for the quarter ending December 2025 included FMR LLC (13.15Mn), BlackRock, Inc. (8.21Mn), JANUS HENDERSON GROUP PLC (7.19Mn), Capital Research Global Investors (5.28Mn), VANGUARD GROUP INC (5.02Mn), STATE STREET CORP (4.13Mn), BAKER BROS. ADVISORS LP (3.62Mn), FEDERATED HERMES, INC. (3.40Mn), Logos Global Management LP (3.12Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (2.80Mn).

235 Institutional Holders

3,534,580 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
FMR LLC	31 Dec, 2025	13,149,960	3,415	0.03%	$454,594,125.00
BlackRock, Inc.	31 Dec, 2025	8,209,392	82,166	1.01%	$283,798,682.00
JANUS HENDERSON GROUP PLC	31 Dec, 2025	7,186,456	758,117	11.79%	$248,344,296.00
Capital Research Global Investors	31 Dec, 2025	5,279,675	-1,273,016	-19.43%	$182,518,365.00
VANGUARD GROUP INC	31 Dec, 2025	5,019,324	97,116	1.97%	$173,518,031.00
STATE STREET CORP	31 Dec, 2025	4,134,641	893,707	27.58%	$142,934,539.00
BAKER BROS. ADVISORS LP	31 Dec, 2025	3,618,826	343,382	10.48%	$125,102,815.00
FEDERATED HERMES, INC.	31 Dec, 2025	3,395,771	-1,230,079	-26.59%	$117,391,803.00
Logos Global Management LP	31 Dec, 2025	3,125,000	875,000	38.89%	$108,031,250.00
ADAGE CAPITAL PARTNERS GP, L.L.C.	31 Dec, 2025	2,800,000	-100,094	-3.45%	$96,796,000.00
Fiera Capital Corp	31 Dec, 2025	2,437,262	599,295	32.61%	$84,256,148.00
DEERFIELD MANAGEMENT COMPANY, L.P.	31 Dec, 2025	2,153,043	0	0.00%	$74,430,697.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,073,583	-76,450	-3.56%	$71,694,992.00
Point72 Asset Management, L.P.	31 Dec, 2025	1,844,556	-1,971,148	-51.66%	$63,766,301.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	1,770,866	537,753	43.61%	$61,218,838.00
GSK plc	31 Dec, 2025	1,333,333	1,333,333	0.00%	$46,093,322.00
MORGAN STANLEY	31 Dec, 2025	1,252,404	-327,949	-20.75%	$43,295,630.00
UBS Group AG	31 Dec, 2025	1,085,632	29,055	2.75%	$37,530,298.00
Candriam S.C.A.	31 Dec, 2025	1,031,354	18,387	1.82%	$35,655,426.00
CITADEL ADVISORS LLC	31 Dec, 2025	959,355	-357,636	-27.16%	$33,164,903.00

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