Group One Trading
ILMN icon

Group One Trading’s Illumina ILMN Stock Holding History

Group One Trading’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 		$1.93M Sell
15,677
-22,684
-59% -$2.98M ﹤0.01% 2103
2025
Q4 		$5.03M Sell
38,361
-6,047
-14% -$710K 0.01% 1477
2025
Q3 		$4.22M Buy
44,408
+17,638
+66% +$1.75M 0.01% 1625
2025
Q2 		$2.55M Buy
26,770
+3,402
+15% +$276K 0.01% 1897
2025
Q1 		$1.85M Buy
+23,368
New +$2.53M 0.01% 1885
2024
Q4 		– Sell
-11,825
Closed -$1.68M – 7586
2024
Q3 		$1.54M Buy
+11,825
New +$1.46M ﹤0.01% 1938
2024
Q1 		– Sell
-12,075
Closed -$1.62M – 7454
2023
Q4 		$1.64M Sell
12,075
-2,577
-18% -$297K ﹤0.01% 2041
2023
Q3 		$1.96M Buy
14,652
+13,681
+1,409% +$2.25M 0.01% 1656
2023
Q2 		$177K Sell
971
-9,905
-91% -$2M ﹤0.01% 4069
2023
Q1 		$2.46M Buy
+10,876
New +$2.23M 0.01% 1364
2022
Q4 		– Sell
-2,563
Closed -$531K – 7626
2022
Q3 		$476K Sell
2,563
-56,785
-96% -$11.2M ﹤0.01% 3283
2022
Q2 		$10.6M Buy
59,348
+13,858
+30% +$3.54M 0.02% 797
2022
Q1 		$15.5M Sell
45,490
-60,347
-57% -$20.4M 0.02% 738
2021
Q4 		$39.2M Sell
105,837
-23,076
-18% -$8.74M 0.03% 378
2021
Q3 		$50.9M Buy
128,913
+69,628
+117% +$32M 0.05% 276
2021
Q2 		$27.3M Buy
59,285
+12,212
+26% +$4.92M 0.03% 469
2021
Q1 		$17.6M Buy
47,073
+33,865
+256% +$13.8M 0.03% 607
2020
Q4 		$4.75M Sell
13,208
-12,494
-49% -$3.98M 0.01% 1316
2020
Q3 		$7.73M Buy
25,702
+15,627
+155% +$5.38M 0.02% 652
2020
Q2 		$3.63M Buy
10,075
+5,934
+143% +$1.91M 0.02% 1028
2020
Q1 		$1.1M Buy
4,141
+3,306
+396% +$924K 0.01% 1458
2019
Q4 		$269K Buy
+835
New +$253K ﹤0.01% 2948
2019
Q3 		– Sell
-4,824
Closed -$1.42M – 5320
2019
Q2 		$1.73M Buy
4,824
+2,343
+94% +$740K 0.02% 1186
2019
Q1 		$750K Buy
+2,481
New +$724K 0.01% 1618
2018
Q2 		– Sell
-37,745
Closed -$9.6M – 5269
2018
Q1 		$8.68M Buy
+37,745
New +$8.65M 0.09% 268
2017
Q4 		– Sell
-66,622
Closed -$13.7M – 5005
2017
Q3 		$12.9M Sell
66,622
-6,241
-9% -$1.16M 0.12% 194
2017
Q2 		$12.3M Buy
72,863
+38,204
+110% +$6.61M 0.13% 170
2017
Q1 		$5.75M Buy
34,659
+34,453
+16,725% +$5.43M 0.07% 354
2016
Q4 		$26K Buy
+206
New +$27.8K ﹤0.01% 3589
2016
Q2 		– Sell
-1,823
Closed -$259K – 4760
2016
Q1 		$287K Buy
+1,823
New +$279K ﹤0.01% 2081
2015
Q4 		– Sell
-741
Closed -$120K – 4887
2015
Q3 		$127K Sell
741
-18,246
-96% -$3.69M ﹤0.01% 2868
2015
Q2 		$4.03M Buy
18,987
+1,317
+7% +$257K 0.06% 407
2015
Q1 		$3.19M Buy
17,670
+7,627
+76% +$1.44M 0.05% 419
2014
Q4 		$1.8M Buy
10,043
+3,178
+46% +$560K 0.03% 701
2014
Q3 		$1.09M Buy
6,865
+925
+16% +$155K 0.02% 1052
2014
Q2 		$1.03M Sell
5,940
-19,487
-77% -$2.91M 0.02% 1118
2014
Q1 		$3.68M Sell
25,427
-37,799
-60% -$5.55M 0.06% 337
2013
Q4 		$6.8M Buy
63,226
+26,297
+71% +$2.41M 0.1% 183
2013
Q3 		$2.9M Buy
36,929
+6,360
+21% +$487K 0.06% 385
2013
Q2 		$2.23M Buy
+30,569
New +$1.96M 0.05% 374

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

Group One Trading's ILMN Position: Q1 2026 in Review

Group One Trading reduced its Illumina (ILMN) stake by 59% in Q1 2026, selling an estimated $2.98M and leaving 15,677 shares worth $1.93M. The position accounts for ﹤0.01% of the portfolio, ranked #2103.

Group One Trading first reported a position in ILMN in Q2 2013 and has held it in 40 quarters since. The position peaked at $50.9M in Q3 2021. 845 funds tracked by Wall St. Rank hold ILMN as of Q1 2026.

  • Group One Trading held 15,677 shares of Illumina worth $1.93M as of Q1 2026.
  • Group One Trading sold 22,684 Illumina shares in Q1 2026, an estimated $2.98M.
  • Illumina made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #2103 holding.
  • Group One Trading first reported a position in Illumina in Q2 2013 and has held it in 40 quarters since.
  • Group One Trading's Illumina position peaked at $50.9M in Q3 2021.
  • 845 funds tracked by Wall St. Rank held Illumina as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.