Mariner
DXCM icon

Mariner’s DexCom DXCM Stock Holding History

Mariner’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 		$5.09M Sell
81,002
-3,848
-5% -$268K 0.01% 1049
2025
Q4 		$5.64M Buy
84,850
+40,654
+92% +$2.63M 0.01% 956
2025
Q3 		$2.97M Sell
44,196
-764
-2% -$60.5K ﹤0.01% 1195
2025
Q2 		$3.92M Buy
44,960
+8,082
+22% +$634K 0.01% 980
2025
Q1 		$2.52M Buy
36,878
+7,149
+24% +$583K ﹤0.01% 1114
2024
Q4 		$2.31M Buy
29,729
+442
+2% +$32.7K ﹤0.01% 1136
2024
Q3 		$1.96M Sell
29,287
-61,496
-68% -$5.05M ﹤0.01% 1196
2024
Q2 		$10.3M Buy
90,783
+6,531
+8% +$826K 0.02% 501
2024
Q1 		$11.7M Buy
84,252
+45,439
+117% +$5.71M 0.02% 468
2023
Q4 		$4.82M Buy
38,813
+4,295
+12% +$439K 0.01% 690
2023
Q3 		$3.22M Buy
34,518
+2,186
+7% +$246K 0.01% 792
2023
Q2 		$4.15M Buy
32,332
+966
+3% +$117K 0.01% 708
2023
Q1 		$3.64M Buy
31,366
+1,406
+5% +$157K 0.01% 731
2022
Q4 		$3.39M Buy
29,960
+2,441
+9% +$268K 0.01% 727
2022
Q3 		$2.22M Buy
27,519
+7,432
+37% +$629K 0.01% 734
2022
Q2 		$1.5M Buy
+20,087
New +$1.83M 0.01% 790
2019
Q3 		– Sell
-21,040
Closed -$788K – 775
2019
Q2 		$788K Buy
+21,040
New +$661K 0.01% 588

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

Mariner's DXCM Position: Q1 2026 in Review

Mariner reduced its DexCom (DXCM) stake by 4.5% in Q1 2026, selling an estimated $268K and leaving 81,002 shares worth $5.09M. The position accounts for 0.01% of the portfolio, ranked #1049.

Mariner first reported a position in DXCM in Q2 2019 and has held it in 17 quarters since. The position peaked at $11.7M in Q1 2024. 956 funds tracked by Wall St. Rank hold DXCM as of Q1 2026.

  • Mariner held 81,002 shares of DexCom worth $5.09M as of Q1 2026.
  • Mariner sold 3,848 DexCom shares in Q1 2026, an estimated $268K.
  • DexCom made up 0.01% of Mariner's portfolio in Q1 2026, its #1049 holding.
  • Mariner first reported a position in DexCom in Q2 2019 and has held it in 17 quarters since.
  • Mariner's DexCom position peaked at $11.7M in Q1 2024.
  • 956 funds tracked by Wall St. Rank held DexCom as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.