IDYAIDEAYA Biosciences, Inc.

$36.12+40% 1Y

Who owns IDYA

281 institutions reported holding IDYA for 2026Q2, together 115% of the company, more than the 252 a quarter earlier.

281

Institutions reporting a position · as of 2026Q2 · up from 252 the quarter before

Shares held by institutions
101.9M

Shares held by institutions · 115% of the company · long US equity positions only, as reported on Form 13F

Reported value
$3.79B

Reported value · at Jun 30, 2026 prices, not today's

Opened vs closed
65 / 36

Opened vs closed · new positions against positions exited in the latest quarter

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
29
New positions
65
Positions exited
36
Added to
83
Reduced
83
Shares sold shortsettled Sep 15, 2026
9.9M
Short interestof shares outstanding
11%
Days to coverat the average daily volume
17.3
Change in the short positionsince the Aug 31, 2026 count
−1.7%
Institutional ownership by quarter, 2019Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2281101.9M$3.79B
2026Q125294.6M$3.16B
2025Q424395.9M$3.31B
2025Q322093.8M$2.55B
2025Q220296.7M$2.03B
2025Q120493.8M$1.54B
2024Q420592.0M$2.36B
2024Q320791.8M$2.91B
2024Q219682.4M$2.89B
2024Q120379.0M$3.46B
2023Q415666.0M$2.35B
2023Q314359.7M$1.61B
2023Q213756.6M$1.33B
2023Q112745.6M$625M
2022Q411746.0M$835M
2022Q311244.7M$667M
Largest reported holders, 2026Q2
HolderShares% of companyValue
FMR LLC14.1Mn/a$526M
BlackRock Inc.8.9Mn/a$331M
Jupiter Topco LLC8.6Mn/a$320M
VANGUARD GROUP INC5.7Mn/a$213M
Capital Research Global Investors5.3Mn/a$199M
BAKER BROS. ADVISORS LP5.0Mn/a$187M
STATE STREET CORP4.5Mn/a$170M
Logos Global Management LP3.0Mn/a$112M
ADAGE CAPITAL PARTNERS GP, L.L.C.2.7Mn/a$101M
DEERFIELD MANAGEMENT CO /NY2.7Mn/a$101M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20269.9M11%17.3
Aug 31, 202610.1M11%12.2
Aug 14, 202610.4M12%16.5
Jul 31, 202610.1M11%13.2
Jul 15, 20269.6M11%8.6
Jun 30, 202610.3M12%6.1
Jun 15, 202610.6M12%7.5
May 29, 202611.3M13%16.3
May 15, 202611.7M13%14.0
Apr 30, 202611.7M13%11.2
Apr 15, 202610.6M12%4.5
Mar 31, 20269.8M11%9.3

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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