Duquesne Family Office’s Illumina ILMN Stock Holding History

Duquesne Family Office’s Portfolio ILMN Stock Details ILMN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-300,615	Closed	-$28.7M	–	86
2025 Q2	$28.7M	Buy	+300,615	New	+$24.4M	0.7%	39
2023 Q3	–	Sell	-56,422	Closed	-$10.3M	–	52
2023 Q2	$10.3M	Sell	56,422 -55,923	-50%	-$11.3M	0.36%	38
2023 Q1	$25.4M	Buy	+112,345	New	+$23M	1.1%	22
2019 Q3	–	Sell	-175,582	Closed	-$62.9M	–	50
2019 Q2	$62.9M	Sell	175,582 -1,028	-0.6%	-$325K	1.87%	18
2019 Q1	$53.4M	Buy	176,610 +33,204	+23%	+$9.68M	1.55%	21
2018 Q4	$41.8M	Buy	+143,406	New	+$44.4M	2.42%	12
2015 Q4	–	Sell	-160,162	Closed	-$27.4M	–	19
2015 Q3	$27.4M	Sell	160,162 -52,120	-25%	-$10.5M	2.33%	10
2015 Q2	$45.1M	Sell	212,282 -209,301	-50%	-$40.9M	3.04%	12
2015 Q1	$76.1M	Hold	421,583	–	–	9.67%	1
2014 Q4	$75.7M	Hold	421,583	–	–	7.42%	2
2014 Q3	$67.2M	Hold	421,583	–	–	8.25%	2
2014 Q2	$73.2M	Buy	421,583 +161,191	+62%	+$24M	5.23%	5
2014 Q1	$37.7M	Sell	260,392 -260,496	-50%	-$38.3M	4.25%	8
2013 Q4	$56M	Hold	520,888	–	–	3.73%	5
2013 Q3	$41M	Buy	+520,888	New	+$39.8M	4.84%	5

Other funds holding ILMN

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return

Loomis, Sayles & Company Boston, Massachusetts $74.3B AUM 24.01% 1-Year Est. Return

WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return

Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Duquesne Family Office's ILMN Position: Q3 2025 in Review

Duquesne Family Office sold out of Illumina (ILMN) in Q3 2025, closing a stake of 300,615 shares — an estimated $28.7M sold.

Duquesne Family Office first reported a position in ILMN in Q3 2013 and held it in 15 quarters. The position peaked at $76.1M in Q1 2015. 775 funds tracked by Wall St. Rank hold ILMN as of Q3 2025.

Duquesne Family Office reported no remaining Illumina position as of Q3 2025 after selling out during the quarter.
Duquesne Family Office sold 300,615 Illumina shares in Q3 2025, an estimated $28.7M.
Duquesne Family Office first reported a position in Illumina in Q3 2013 and held it in 15 quarters.
Duquesne Family Office's Illumina position peaked at $76.1M in Q1 2015.
775 funds tracked by Wall St. Rank held Illumina as of Q3 2025.

Based on Duquesne Family Office's 13F filing for Q3 2025, filed 14 Nov 2025.