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S&CO Inc’s Illumina ILMN Stock Holding History

S&CO Inc’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 		$3.16M Hold
18,000
– – 0.18% 90
2026
Q1 		$2.22M Hold
18,000
– – 0.14% 113
2025
Q4 		$2.36M Hold
18,000
– – 0.15% 108
2025
Q3 		$1.71M Buy
18,000
+2,000
+13% +$198K 0.1% 120
2025
Q2 		$1.53M Sell
16,000
-18,700
-54% -$1.52M 0.1% 125
2025
Q1 		$2.75M Buy
34,700
+1,650
+5% +$179K 0.18% 99
2024
Q4 		$4.42M Buy
33,050
+500
+2% +$71.2K 0.3% 74
2024
Q3 		$4.24M Buy
32,550
+3,000
+10% +$370K 0.28% 75
2024
Q2 		$3.08M Buy
29,550
+5,341
+22% +$599K 0.22% 93
2024
Q1 		$3.23M Buy
+24,209
New +$3.24M 0.23% 80

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

S&CO Inc's ILMN Position: Q2 2026 in Review

S&CO Inc held its Illumina (ILMN) position steady in Q2 2026 at 18,000 shares worth $3.16M. The position accounts for 0.18% of the portfolio, ranked #90.

S&CO Inc first reported a position in ILMN in Q1 2024 and has held it in 10 quarters since. The position peaked at $4.42M in Q4 2024. 937 funds tracked by Wall St. Rank hold ILMN as of Q2 2026.

  • S&CO Inc held 18,000 shares of Illumina worth $3.16M as of Q2 2026.
  • S&CO Inc left its Illumina share count unchanged in Q2 2026.
  • Illumina made up 0.18% of S&CO Inc's portfolio in Q2 2026, its #90 holding.
  • S&CO Inc first reported a position in Illumina in Q1 2024 and has held it in 10 quarters since.
  • S&CO Inc's Illumina position peaked at $4.42M in Q4 2024.
  • 937 funds tracked by Wall St. Rank held Illumina as of Q2 2026.

Based on S&CO Inc's 13F filing for Q2 2026, filed 6 Aug 2026.