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Weiss Asset Management’s Illumina ILMN Stock Holding History

Weiss Asset 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
2025
Q4 		– Sell
-29,808
Closed -$2.83M – 714
2025
Q3 		$2.83M Buy
29,808
+2,430
+9% +$241K 0.03% 216
2025
Q2 		$2.61M Buy
+27,378
New +$2.22M 0.03% 220
2025
Q1 		– Sell
-7,345
Closed -$982K – 493
2024
Q4 		$982K Buy
+7,345
New +$1.05M 0.02% 371
2024
Q2 		– Sell
-29,609
Closed -$3.96M – 347
2024
Q1 		$3.96M Buy
+29,609
New +$3.97M 0.14% 132
2022
Q1 		– Sell
-4,790
Closed -$1.77M – 840
2021
Q4 		$1.77M Buy
+4,790
New +$1.81M 0.04% 449
2021
Q3 		– Sell
-5,446
Closed -$2.51M – 552
2021
Q2 		$2.51M Buy
+5,446
New +$2.19M 0.06% 279

Other funds holding ILMN

Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Loomis, Sayles & Company
Loomis, Sayles & Company Boston, Massachusetts $74.3B AUM 24.01% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
CM
Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return
SC
Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Weiss Asset Management's ILMN Position: Q4 2025 in Review

Weiss Asset Management sold out of Illumina (ILMN) in Q4 2025, closing a stake of 29,808 shares — an estimated $2.83M sold.

Weiss Asset Management first reported a position in ILMN in Q2 2021 and held it in 6 quarters. The position peaked at $3.96M in Q1 2024. 858 funds tracked by Wall St. Rank hold ILMN as of Q4 2025.

  • Weiss Asset Management reported no remaining Illumina position as of Q4 2025 after selling out during the quarter.
  • Weiss Asset Management sold 29,808 Illumina shares in Q4 2025, an estimated $2.83M.
  • Weiss Asset Management first reported a position in Illumina in Q2 2021 and held it in 6 quarters.
  • Weiss Asset Management's Illumina position peaked at $3.96M in Q1 2024.
  • 858 funds tracked by Wall St. Rank held Illumina as of Q4 2025.

Based on Weiss Asset Management's 13F filing for Q4 2025, filed 17 Feb 2026.