Loomis, Sayles & Company
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Loomis, Sayles & Company’s Illumina ILMN Stock Holding History

Loomis, Sayles & Company’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 		$340M Sell
1,931,948
-1,011,029
-34% -$148M 0.43% 32
2026
Q1 		$363M Sell
2,942,977
-1,228,743
-29% -$161M 0.49% 32
2025
Q4 		$547M Sell
4,171,720
-115,708
-3% -$13.6M 0.66% 29
2025
Q3 		$407M Buy
4,287,428
+61,899
+1% +$6.14M 0.48% 34
2025
Q2 		$403M Buy
4,225,529
+78,317
+2% +$6.36M 0.51% 34
2025
Q1 		$329M Sell
4,147,212
-62,948
-1% -$6.81M 0.48% 37
2024
Q4 		$563M Sell
4,210,160
-132,580
-3% -$18.9M 0.71% 28
2024
Q3 		$566M Sell
4,342,740
-119,254
-3% -$14.7M 0.74% 29
2024
Q2 		$466M Sell
4,461,994
-73,827
-2% -$8.28M 0.64% 31
2024
Q1 		$606M Sell
4,535,821
-12,758
-0.3% -$1.71M 0.86% 29
2023
Q4 		$616M Buy
4,548,579
+428,399
+10% +$49.4M 0.94% 26
2023
Q3 		$550M Buy
4,120,180
+214,099
+5% +$35.2M 0.95% 26
2023
Q2 		$712M Buy
3,906,081
+398,790
+11% +$80.7M 1.15% 23
2023
Q1 		$793M Buy
3,507,291
+190,146
+6% +$38.9M 1.38% 20
2022
Q4 		$652M Sell
3,317,145
-381,897
-10% -$79.1M 1.31% 24
2022
Q3 		$687M Sell
3,699,042
-137,555
-4% -$27.2M 1.39% 22
2022
Q2 		$688M Buy
3,836,597
+196,699
+5% +$50.2M 1.28% 24
2022
Q1 		$1.24B Sell
3,639,898
-65,640
-2% -$22.2M 1.65% 20
2021
Q4 		$1.37B Buy
3,705,538
+417,554
+13% +$158M 1.66% 20
2021
Q3 		$1.3B Sell
3,287,984
-18,280
-0.6% -$8.41M 1.6% 19
2021
Q2 		$1.52B Sell
3,306,264
-149,223
-4% -$60.1M 1.84% 19
2021
Q1 		$1.29B Sell
3,455,487
-144,645
-4% -$59M 1.67% 21
2020
Q4 		$1.3B Sell
3,600,132
-569
-0% -$181K 1.71% 21
2020
Q3 		$1.08B Buy
3,600,701
+1,318,833
+58% +$454M 1.58% 18
2020
Q2 		$822M Buy
2,281,868
+1,076,894
+89% +$347M 1.32% 25
2020
Q1 		$320M Buy
+1,204,974
New +$337M 0.66% 36
2017
Q3 		– Sell
-30
Closed -$5K – 948
2017
Q2 		$5K Buy
+30
New +$5.19K ﹤0.01% 864

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

Loomis, Sayles & Company's ILMN Position: Q2 2026 in Review

Loomis, Sayles & Company reduced its Illumina (ILMN) stake by 34% in Q2 2026, selling an estimated $148M and leaving 1,931,948 shares worth $340M. The position accounts for 0.43% of the portfolio, ranked #32.

Loomis, Sayles & Company first reported a position in ILMN in Q2 2017 and has held it in 27 quarters since. The position peaked at $1.52B in Q2 2021. 937 funds tracked by Wall St. Rank hold ILMN as of Q2 2026.

  • Loomis, Sayles & Company held 1,931,948 shares of Illumina worth $340M as of Q2 2026.
  • Loomis, Sayles & Company sold 1,011,029 Illumina shares in Q2 2026, an estimated $148M.
  • Illumina made up 0.43% of Loomis, Sayles & Company's portfolio in Q2 2026, its #32 holding.
  • Loomis, Sayles & Company first reported a position in Illumina in Q2 2017 and has held it in 27 quarters since.
  • Loomis, Sayles & Company's Illumina position peaked at $1.52B in Q2 2021.
  • 937 funds tracked by Wall St. Rank held Illumina as of Q2 2026.

Based on Loomis, Sayles & Company's 13F filing for Q2 2026, filed 14 Aug 2026.