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ARK Investment Management’s Illumina ILMN Stock Holding History

ARK Investment Management’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
2026
Q2 		$184M Sell
1,045,010
-84,449
-7% -$12.4M 1.19% 26
2026
Q1 		$139M Sell
1,129,459
-410,892
-27% -$54M 1.08% 30
2025
Q4 		$202M Buy
1,540,351
+72,472
+5% +$8.51M 1.34% 23
2025
Q3 		$139M Buy
1,467,879
+299,801
+26% +$29.7M 0.83% 34
2025
Q2 		$111M Buy
1,168,078
+272,759
+30% +$22.1M 0.82% 34
2025
Q1 		$71M Buy
895,319
+208,989
+30% +$22.6M 0.71% 33
2024
Q4 		$91.7M Buy
+686,330
New +$97.7M 0.76% 31
2021
Q1 		– Sell
-52,001
Closed -$18.7M – 292
2020
Q4 		$18.7M Sell
52,001
-954,065
-95% -$304M 0.05% 141
2020
Q3 		$302M Buy
1,006,066
+51,530
+5% +$17.8M 1.79% 14
2020
Q2 		$344M Sell
954,536
-77,603
-8% -$25M 3.7% 7
2020
Q1 		$274M Buy
1,032,139
+284,022
+38% +$79.4M 6.83% 2
2019
Q4 		$241M Buy
748,117
+33,338
+5% +$10.1M 6.09% 2
2019
Q3 		$212M Buy
714,779
+162,197
+29% +$47.8M 4.62% 4
2019
Q2 		$198M Buy
552,582
+72,554
+15% +$22.9M 4.99% 5
2019
Q1 		$145M Buy
480,028
+154,522
+47% +$45.1M 4.15% 8
2018
Q4 		$95M Buy
325,506
+47,102
+17% +$14.6M 3.86% 8
2018
Q3 		$99.4M Sell
278,404
-63,781
-19% -$20.4M 3% 9
2018
Q2 		$93M Buy
342,185
+83,540
+32% +$21.3M 3.41% 6
2018
Q1 		$59.5M Buy
258,645
+87,885
+51% +$20.1M 2.95% 9
2017
Q4 		$36.3M Buy
170,760
+40,925
+32% +$8.42M 2.89% 6
2017
Q3 		$25.2M Buy
129,835
+23,119
+22% +$4.3M 3.07% 7
2017
Q2 		$18M Sell
106,716
-16,526
-13% -$2.86M 3.51% 6
2017
Q1 		$20.5M Sell
123,242
-37,242
-23% -$5.87M 5.9% 3
2016
Q4 		$20M Buy
+160,484
New +$21.6M 7.27% 2

Other funds holding ILMN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

ARK Investment Management's ILMN Position: Q2 2026 in Review

ARK Investment Management reduced its Illumina (ILMN) stake by 7.5% in Q2 2026, selling an estimated $12.4M and leaving 1,045,010 shares worth $184M. The position accounts for 1.19% of the portfolio, ranked #26.

ARK Investment Management first reported a position in ILMN in Q4 2016 and has held it in 24 quarters since. The position peaked at $344M in Q2 2020. 937 funds tracked by Wall St. Rank hold ILMN as of Q2 2026.

  • ARK Investment Management held 1,045,010 shares of Illumina worth $184M as of Q2 2026.
  • ARK Investment Management sold 84,449 Illumina shares in Q2 2026, an estimated $12.4M.
  • Illumina made up 1.19% of ARK Investment Management's portfolio in Q2 2026, its #26 holding.
  • ARK Investment Management first reported a position in Illumina in Q4 2016 and has held it in 24 quarters since.
  • ARK Investment Management's Illumina position peaked at $344M in Q2 2020.
  • 937 funds tracked by Wall St. Rank held Illumina as of Q2 2026.

Based on ARK Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.