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Rossby Financial’s Illumina ILMN Stock Holding History

Rossby Financial’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
Q1 		$259K Buy
2,047
+1,999
+4,165% +$262K 0.05% 315
2025
Q4 		$6.3K Buy
48
+20
+71% +$2.35K ﹤0.01% 1050
2025
Q3 		$2.86K Buy
28
+17
+155% +$1.69K ﹤0.01% 1078
2025
Q2 		$1.05K Buy
+11
New +$893 ﹤0.01% 1126

Other funds holding ILMN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 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

Rossby Financial's ILMN Position: Q1 2026 in Review

Rossby Financial increased its Illumina (ILMN) stake by 4,165% in Q1 2026, buying an estimated $262K and bringing the position to 2,047 shares worth $259K. The position accounts for 0.05% of the portfolio, ranked #315.

Rossby Financial first reported a position in ILMN in Q2 2025 and has held it in 4 quarters since. 844 funds tracked by Wall St. Rank hold ILMN as of Q1 2026.

  • Rossby Financial held 2,047 shares of Illumina worth $259K as of Q1 2026.
  • Rossby Financial bought 1,999 Illumina shares in Q1 2026, an estimated $262K.
  • Illumina made up 0.05% of Rossby Financial's portfolio in Q1 2026, its #315 holding.
  • Rossby Financial first reported a position in Illumina in Q2 2025 and has held it in 4 quarters since.
  • 844 funds tracked by Wall St. Rank held Illumina as of Q1 2026.

Based on Rossby Financial's 13F filing for Q1 2026, filed 11 May 2026.