IDEAYA Biosciences, Inc. - Common Stock (IDYA)

CUSIP: 45166A102

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class
Equity / Common Stock
Total 13F shares
94,658,229
Total 13F value
$3,153,011,963
Holder snapshot 6 visible 7 signals
Share change
-854,696
Put/Call ratio
81%
SEC-reported price per share
$33.32
Number of holders
251
Value change
-$29,366,121
Number of buys
124
Open additional details 1 more signal available
Number of sells
107
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
87,533,169

Security key

45166A102

Report period

Q1 2026

Institutions

251

Top holders

10

IDYA full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 IDEAYA Biosciences, Inc. SEC filings IDEAYA Biosciences, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of IDYA - IDEAYA Biosciences, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
JANUS HENDERSON GROUP PLC
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
31 Dec 2025
13F 13D/G Lead comparable stake: 8.3% 13D/G row: JANUS HENDERSON GROUP PLC Showing 1-6 of 15 holder rows.

Quick read

JANUS HENDERSON GROUP PLC leads the comparable SEC ownership view at 8.3%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens JANUS HENDERSON GROUP PLC's linked filing trail.
Comparable ownership Top 5
JANUS HENDERSON GROUP PLC 8.3%
BlackRock, Inc. 8.1%
Capital Research Global Investors 6%
FEDERATED HERMES, INC. 3.9%
Point72 Asset Management, L.P. 2.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
JANUS HENDERSON GROUP PLC
13F 13D/G
Company
13F 13D/G
8.3%
from 13D/G
$248,344,296
7,186,456 shares
 — 31 Dec 2025
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
8.1%
from 13D/G
$283,798,682
8,209,392 shares
 — 31 Dec 2025
Capital Research Global Investors
13D/G 13F
Company
13D/G 13F
6%
$194,503,227
5,279,675 shares
 -$46,897,909 31 Dec 2025
FEDERATED HERMES, INC.
13D/G 13F
Company
13D/G 13F
3.9%
$117,393,162
3,395,771 shares
 $0 31 Dec 2025
Point72 Asset Management, L.P.
13D/G 13F
Company
13D/G 13F
2.1%
$67,953,443
1,844,556 shares
 -$94,600,552 31 Dec 2025
FMR LLC
13F
Company
13F
15%
$454,594,125
13,149,960 shares
 — 31 Dec 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
251
Shares
94,658,229
Rows available
251
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
244
Q1 2026 holders
251
Holder diff
7
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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