Diamond Hill Capital Management
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Diamond Hill Capital Management’s Illumina ILMN Stock Holding History

Diamond Hill Capital 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 		$53M Sell
301,642
-30,797
-9% -$4.51M 0.42% 64
2026
Q1 		$41M Buy
332,439
+5,108
+2% +$671K 0.26% 75
2025
Q4 		$42.9M Sell
327,331
-15,626
-5% -$1.83M 0.22% 74
2025
Q3 		$32.6M Sell
342,957
-36,824
-10% -$3.65M 0.15% 85
2025
Q2 		$36.2M Buy
379,781
+50,808
+15% +$4.12M 0.17% 78
2025
Q1 		$26.1M Buy
+328,973
New +$35.6M 0.12% 97

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

Diamond Hill Capital Management's ILMN Position: Q2 2026 in Review

Diamond Hill Capital Management reduced its Illumina (ILMN) stake by 9.3% in Q2 2026, selling an estimated $4.51M and leaving 301,642 shares worth $53M. The position accounts for 0.42% of the portfolio, ranked #64.

Diamond Hill Capital Management first reported a position in ILMN in Q1 2025 and has held it in 6 quarters since. 935 funds tracked by Wall St. Rank hold ILMN as of Q2 2026.

  • Diamond Hill Capital Management held 301,642 shares of Illumina worth $53M as of Q2 2026.
  • Diamond Hill Capital Management sold 30,797 Illumina shares in Q2 2026, an estimated $4.51M.
  • Illumina made up 0.42% of Diamond Hill Capital Management's portfolio in Q2 2026, its #64 holding.
  • Diamond Hill Capital Management first reported a position in Illumina in Q1 2025 and has held it in 6 quarters since.
  • 935 funds tracked by Wall St. Rank held Illumina as of Q2 2026.

Based on Diamond Hill Capital Management's 13F filing for Q2 2026, filed 6 Aug 2026.