Rossby Financial’s IDEAYA Biosciences IDYA Stock Holding History

Rossby Financial’s Portfolio IDYA Stock Details IDYA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$2.98K	Sell	80 -9	-10%	-$276	﹤0.01%	1616
2026 Q1	$2.89K	Buy	+89	New	+$2.99K	﹤0.01%	1692

Other funds holding IDYA

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

LGM

Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return

Rossby Financial's IDYA Position: Q2 2026 in Review

Rossby Financial reduced its IDEAYA Biosciences (IDYA) stake by 10% in Q2 2026, selling an estimated $276 and leaving 80 shares worth $2.98K. The position accounts for ﹤0.01% of the portfolio, ranked #1616.

Rossby Financial first reported a position in IDYA in Q1 2026 and has held it in 2 quarters since. 284 funds tracked by Wall St. Rank hold IDYA as of Q2 2026.

Rossby Financial held 80 shares of IDEAYA Biosciences worth $2.98K as of Q2 2026.
Rossby Financial sold 9 IDEAYA Biosciences shares in Q2 2026, an estimated $276.
IDEAYA Biosciences made up ﹤0.01% of Rossby Financial's portfolio in Q2 2026, its #1616 holding.
Rossby Financial first reported a position in IDEAYA Biosciences in Q1 2026 and has held it in 2 quarters since.
284 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.