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
Q2 		$5.98M Buy
88,805
+7,803
+10% +$520K 0.01% 964
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 $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Mariner's DXCM Position: Q2 2026 in Review

Mariner increased its DexCom (DXCM) stake by 9.6% in Q2 2026, buying an estimated $520K and bringing the position to 88,805 shares worth $5.98M. The position accounts for 0.01% of the portfolio, ranked #964.

Mariner first reported a position in DXCM in Q2 2019 and has held it in 18 quarters since. The position peaked at $11.7M in Q1 2024. 973 funds tracked by Wall St. Rank hold DXCM as of Q2 2026.

  • Mariner held 88,805 shares of DexCom worth $5.98M as of Q2 2026.
  • Mariner bought 7,803 DexCom shares in Q2 2026, an estimated $520K.
  • DexCom made up 0.01% of Mariner's portfolio in Q2 2026, its #964 holding.
  • Mariner first reported a position in DexCom in Q2 2019 and has held it in 18 quarters since.
  • Mariner's DexCom position peaked at $11.7M in Q1 2024.
  • 973 funds tracked by Wall St. Rank held DexCom as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.