Simplex Trading
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Simplex Trading’s DexCom DXCM Stock Holding History

Simplex 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 		$3.22M Sell
51,300
-152,000
-75% -$10.6M ﹤0.01% 1440
2025
Q4 		$13.5M Sell
203,300
-20,800
-9% -$1.34M 0.01% 699
2025
Q3 		$15.1M Buy
224,100
+58,200
+35% +$4.61M 0.01% 748
2025
Q2 		$14.5M Buy
165,900
+14,400
+10% +$1.13M 0.01% 680
2025
Q1 		$10.3M Sell
151,500
-242,600
-62% -$19.8M 0.01% 870
2024
Q4 		$30.6M Buy
394,100
+191,000
+94% +$14.1M 0.02% 456
2024
Q3 		$13.6M Buy
203,100
+36,000
+22% +$2.96M 0.01% 846
2024
Q2 		$18.9M Sell
167,100
-128,000
-43% -$16.2M 0.01% 641
2024
Q1 		$40.9M Sell
295,100
-194,800
-40% -$24.5M 0.02% 394
2023
Q4 		$60.8M Buy
489,900
+137,700
+39% +$14.1M 0.04% 286
2023
Q3 		$32.9M Buy
352,200
+135,200
+62% +$15.2M 0.03% 406
2023
Q2 		$27.9M Buy
217,000
+75,500
+53% +$9.13M 0.02% 441
2023
Q1 		$16.4M Sell
141,500
-113,200
-44% -$12.7M 0.01% 667
2022
Q4 		$28.8M Buy
254,700
+164,500
+182% +$18.1M 0.03% 427
2022
Q3 		$7.26M Sell
90,200
-98,200
-52% -$8.32M 0.01% 953
2022
Q2 		$14M Buy
188,400
+101,200
+116% +$9.24M 0.01% 650
2022
Q1 		$11.2M Sell
87,200
-9,600
-10% -$1.05M 0.01% 780
2021
Q4 		$13M Sell
96,800
-14,800
-13% -$2.13M 0.01% 675
2021
Q3 		$11.9M Buy
111,600
+400
+0.4% +$50.4K 0.01% 652
2021
Q2 		$11.9M Buy
111,200
+109,704
+7,333% +$10.5M 0.01% 642
2021
Q1 		$13.4M Buy
1,496
+272
+22% +$25.5K 0.02% 371
2020
Q4 		$11.3M Buy
1,224
+656
+115% +$58.6K 0.01% 532
2020
Q3 		$5.85M Sell
568
-540
-49% -$56.4K 0.01% 773
2020
Q2 		$11.2M Buy
1,108
+740
+201% +$66.2K 0.02% 481
2020
Q1 		$2.48M Sell
368
-608
-62% -$37.8K ﹤0.01% 1120
2019
Q4 		$5.34M Buy
976
+624
+177% +$29.6K 0.01% 763
2019
Q3 		$1.31M Buy
352
+100
+40% +$3.88K ﹤0.01% 1688
2019
Q2 		$943K Sell
252
-1,384
-85% -$43.5K ﹤0.01% 1954
2019
Q1 		$4.87M Buy
1,636
+1,536
+1,536% +$54K 0.01% 698
2018
Q4 		$299K Buy
100
+20
+25% +$634 ﹤0.01% 2723
2018
Q3 		$286K Sell
80
-612
-88% -$19K ﹤0.01% 3237
2018
Q2 		$1.64M Sell
692
-88
-11% -$1.87K 0.01% 1314
2018
Q1 		$109K Buy
780
+264
+51% +$3.9K ﹤0.01% 1739
2017
Q4 		$117K Sell
516
-584
-53% -$7.59K 0.01% 1676
2017
Q3 		$46K Buy
1,100
+912
+485% +$16.1K ﹤0.01% 2372
2017
Q2 		$5K Sell
188
-332
-64% -$6.13K ﹤0.01% 4567
2017
Q1 		$63K Sell
520
-280
-35% -$5.46K ﹤0.01% 2150
2016
Q4 		$15K Sell
800
-940
-54% -$16.7K ﹤0.01% 3306
2016
Q3 		$226K Buy
1,740
+1,692
+3,525% +$37.7K 0.02% 941
2016
Q2 		$9K Sell
48
-48
-50% -$817 ﹤0.01% 3676
2016
Q1 		$9K Sell
96
-92
-49% -$1.54K ﹤0.01% 3559
2015
Q4 		$5K Sell
188
-580
-76% -$12.1K ﹤0.01% 3852
2015
Q3 		$44K Buy
768
+604
+368% +$13.5K ﹤0.01% 2096
2015
Q2 		$16K Buy
+164
New +$2.88K ﹤0.01% 2655
2015
Q1 		– Sell
-8
Closed -$5K – 5055
2014
Q4 		$5K Buy
+8
New +$98 ﹤0.01% 3068

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

Simplex Trading's DXCM Position: Q1 2026 in Review

Simplex Trading opened a new position in DexCom (DXCM) in Q1 2026: 5,052 shares worth $317K. The stake represents ﹤0.01% of the portfolio and ranks #3768 among its holdings. This is a return to the name: Simplex Trading previously reported a position in DXCM as recently as Q2 2025.

Simplex Trading first reported a position in DXCM in Q1 2015 and has held it in 27 quarters since. The position peaked at $4.41M in Q4 2024. 956 funds tracked by Wall St. Rank hold DXCM as of Q1 2026.

  • Simplex Trading held 5,052 shares of DexCom worth $317K as of Q1 2026.
  • DexCom was a new Simplex Trading position in Q1 2026.
  • DexCom made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3768 holding.
  • Simplex Trading first reported a position in DexCom in Q1 2015 and has held it in 27 quarters since.
  • Simplex Trading's DexCom position peaked at $4.41M in Q4 2024.
  • 956 funds tracked by Wall St. Rank held DexCom as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.