XTX Topco’s IDEAYA Biosciences IDYA Stock Holding History

XTX Topco’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	$1.91M	Sell	51,239 -5,383	-10%	-$165K	0.02%	1147
2026 Q1	$1.89M	Sell	56,622 -9,553	-14%	-$320K	0.03%	879
2025 Q4	$2.29M	Buy	+66,175	New	+$2.11M	0.06%	477
2025 Q2	–	Sell	-30,215	Closed	-$495K	–	2725
2025 Q1	$495K	Buy	30,215 +17,536	+138%	+$374K	0.03%	1040
2024 Q4	$326K	Buy	12,679 +4,960	+64%	+$140K	0.03%	1152
2024 Q3	$245K	Buy	+7,719	New	+$293K	0.02%	1323
2024 Q2	–	Sell	-5,850	Closed	-$257K	–	2135
2024 Q1	$257K	Buy	+5,850	New	+$252K	0.03%	978
2023 Q4	–	Sell	-8,159	Closed	-$220K	–	1813
2023 Q3	$220K	Buy	+8,159	New	+$207K	0.04%	964
2023 Q2	–	Sell	-14,459	Closed	-$199K	–	1596
2023 Q1	$199K	Buy	+14,459	New	+$241K	0.04%	965

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

XTX Topco's IDYA Position: Q2 2026 in Review

XTX Topco reduced its IDEAYA Biosciences (IDYA) stake by 9.5% in Q2 2026, selling an estimated $165K and leaving 51,239 shares worth $1.91M. The position accounts for 0.02% of the portfolio, ranked #1147.

XTX Topco first reported a position in IDYA in Q1 2023 and has held it in 9 quarters since. The position peaked at $2.29M in Q4 2025. 284 funds tracked by Wall St. Rank hold IDYA as of Q2 2026.

XTX Topco held 51,239 shares of IDEAYA Biosciences worth $1.91M as of Q2 2026.
XTX Topco sold 5,383 IDEAYA Biosciences shares in Q2 2026, an estimated $165K.
IDEAYA Biosciences made up 0.02% of XTX Topco's portfolio in Q2 2026, its #1147 holding.
XTX Topco first reported a position in IDEAYA Biosciences in Q1 2023 and has held it in 9 quarters since.
XTX Topco's IDEAYA Biosciences position peaked at $2.29M in Q4 2025.
284 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.