Group One Trading
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Group One Trading’s DexCom DXCM Stock Holding History

Group One Trading’s Portfolio DXCM Stock Details DXCM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.28M Sell
36,300
-14,800
-29% -$1.03M ﹤0.01% 1951
2025
Q4 		$3.39M Sell
51,100
-11,900
-19% -$769K 0.01% 1827
2025
Q3 		$4.24M Buy
63,000
+2,300
+4% +$182K 0.01% 1621
2025
Q2 		$5.3M Buy
60,700
+13,700
+29% +$1.07M 0.01% 1288
2025
Q1 		$3.21M Sell
47,000
-9,200
-16% -$751K 0.01% 1420
2024
Q4 		$4.37M Buy
56,200
+25,300
+82% +$1.87M 0.01% 1268
2024
Q3 		$2.07M Buy
30,900
+13,100
+74% +$1.08M 0.01% 1687
2024
Q2 		$2.02M Buy
17,800
+1,000
+6% +$126K 0.01% 1448
2024
Q1 		$2.33M Sell
16,800
-48,600
-74% -$6.11M 0.01% 1377
2023
Q4 		$8.12M Buy
65,400
+2,500
+4% +$255K 0.02% 819
2023
Q3 		$5.87M Buy
62,900
+3,300
+6% +$372K 0.02% 846
2023
Q2 		$7.66M Buy
59,600
+10,000
+20% +$1.21M 0.02% 674
2023
Q1 		$5.76M Sell
49,600
-170,400
-77% -$19.1M 0.02% 769
2022
Q4 		$24.9M Buy
220,000
+9,000
+4% +$988K 0.06% 327
2022
Q3 		$17M Buy
211,000
+32,000
+18% +$2.71M 0.03% 461
2022
Q2 		$13.3M Sell
179,000
-35,400
-17% -$3.23M 0.02% 675
2022
Q1 		$27.4M Sell
214,400
-390,800
-65% -$42.7M 0.03% 466
2021
Q4 		$81.2M Buy
605,200
+168,400
+39% +$24.2M 0.07% 201
2021
Q3 		$59.7M Sell
436,800
-187,200
-30% -$23.6M 0.06% 240
2021
Q2 		$66.6M Buy
624,000
+175,200
+39% +$16.8M 0.08% 187
2021
Q1 		$40.3M Sell
448,800
-57,600
-11% -$5.41M 0.06% 286
2020
Q4 		$46.8M Buy
506,400
+455,600
+897% +$40.7M 0.08% 201
2020
Q3 		$5.24M Sell
50,800
-3,200
-6% -$334K 0.02% 890
2020
Q2 		$5.47M Sell
54,000
-8,800
-14% -$787K 0.03% 750
2020
Q1 		$4.23M Buy
62,800
+42,400
+208% +$2.64M 0.03% 622
2019
Q4 		$1.12M Buy
20,400
+6,000
+42% +$285K 0.01% 1783
2019
Q3 		$537K Buy
14,400
+1,200
+9% +$46.6K ﹤0.01% 2274
2019
Q2 		$494K Sell
13,200
-26,400
-67% -$830K ﹤0.01% 2142
2019
Q1 		$1.18M Buy
39,600
+31,600
+395% +$1.11M 0.01% 1293
2018
Q4 		$240K Sell
8,000
-7,200
-47% -$228K ﹤0.01% 2538
2018
Q3 		$544K Sell
15,200
-7,200
-32% -$223K ﹤0.01% 2208
2018
Q2 		$532K Buy
22,400
+20,800
+1,300% +$441K ﹤0.01% 2232
2018
Q1 		$30K Buy
1,600
+1,200
+300% +$17.7K ﹤0.01% 3910
2017
Q4 		$6K Sell
400
-299,200
-100% -$3.89M ﹤0.01% 4510
2017
Q3 		$3.66M Buy
299,600
+291,600
+3,645% +$5.15M 0.03% 663
2017
Q2 		$146K Sell
8,000
-21,200
-73% -$392K ﹤0.01% 2868
2017
Q1 		$619K Sell
29,200
-2,000
-6% -$39K 0.01% 1698
2016
Q4 		$466K Sell
31,200
-58,400
-65% -$1.03M ﹤0.01% 1826
2016
Q3 		$1.96M Buy
89,600
+84,800
+1,767% +$1.89M 0.02% 863
2016
Q2 		$95K Buy
+4,800
New +$81.7K ﹤0.01% 2899
2016
Q1 		– Sell
-80,400
Closed -$1.65M – 4641
2015
Q4 		$1.65M Buy
80,400
+28,800
+56% +$599K 0.02% 991
2015
Q3 		$1.11M Buy
51,600
+2,000
+4% +$44.6K 0.02% 1170
2015
Q2 		$992K Buy
49,600
+29,600
+148% +$520K 0.01% 1213
2015
Q1 		$312K Sell
20,000
-63,200
-76% -$955K ﹤0.01% 2002
2014
Q4 		$1.15M Buy
83,200
+41,200
+98% +$504K 0.02% 997
2014
Q3 		$420K Sell
42,000
-82,800
-66% -$846K 0.01% 1756
2014
Q2 		$1.24M Buy
124,800
+104,800
+524% +$929K 0.02% 993
2014
Q1 		$207K Buy
20,000
+12,000
+150% +$124K ﹤0.01% 2415
2013
Q4 		$71K Buy
+8,000
New +$63.3K ﹤0.01% 3327

Other funds holding DXCM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

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

Group One Trading reduced its DexCom (DXCM) stake by 94% in Q1 2026, selling an estimated $1.92M and leaving 1,706 shares worth $107K. The position accounts for ﹤0.01% of the portfolio, ranked #4659.

Group One Trading first reported a position in DXCM in Q4 2013 and has held it in 34 quarters since. The position peaked at $17.3M in Q4 2020. 956 funds tracked by Wall St. Rank hold DXCM as of Q1 2026.

  • Group One Trading held 1,706 shares of DexCom worth $107K as of Q1 2026.
  • Group One Trading sold 27,571 DexCom shares in Q1 2026, an estimated $1.92M.
  • DexCom made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #4659 holding.
  • Group One Trading first reported a position in DexCom in Q4 2013 and has held it in 34 quarters since.
  • Group One Trading's DexCom position peaked at $17.3M in Q4 2020.
  • 956 funds tracked by Wall St. Rank held DexCom as of Q1 2026.

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