JO
DXCM icon

John Overdeck’s DexCom DXCM Stock Holding History

John Overdeck’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 		– Sell
-4,000
Closed -$251K – 5140
2026
Q1 		$251K Buy
+4,000
New +$279K ﹤0.01% 4176
2022
Q1 		– Sell
-26,000
Closed -$3.49M – 3115
2021
Q4 		$3.49M Buy
26,000
+7,200
+38% +$1.03M 0.01% 1451
2021
Q3 		$2.57M Sell
18,800
-8,800
-32% -$1.11M 0.01% 1746
2021
Q2 		$2.95M Buy
27,600
+22,000
+393% +$2.11M 0.01% 1562
2021
Q1 		$503K Sell
5,600
-64,400
-92% -$6.05M ﹤0.01% 2925
2020
Q4 		$6.47M Sell
70,000
-38,400
-35% -$3.43M 0.02% 787
2020
Q3 		$11.2M Buy
108,400
+56,400
+108% +$5.89M 0.04% 468
2020
Q2 		$5.27M Sell
52,000
-19,200
-27% -$1.72M 0.03% 625
2020
Q1 		$4.79M Buy
71,200
+49,600
+230% +$3.09M 0.04% 529
2019
Q4 		$1.18M Sell
21,600
-7,200
-25% -$342K ﹤0.01% 2045
2019
Q3 		$1.07M Buy
28,800
+16,800
+140% +$653K ﹤0.01% 1931
2019
Q2 		$450K Buy
+12,000
New +$377K ﹤0.01% 2582
2018
Q2 		– Sell
-119,600
Closed -$2.22M – 3386
2018
Q1 		$2.22M Buy
+119,600
New +$1.77M 0.01% 1450
2017
Q3 		– Sell
-25,200
Closed -$461K – 2825
2017
Q2 		$461K Sell
25,200
-21,200
-46% -$392K ﹤0.01% 2398
2017
Q1 		$983K Buy
+46,400
New +$906K ﹤0.01% 1947

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

John Overdeck's DXCM Position: Q2 2026 in Review

John Overdeck reduced its DexCom (DXCM) stake by 96% in Q2 2026, selling an estimated $71.2M and leaving 46,697 shares worth $3.15M. The position accounts for ﹤0.01% of the portfolio, ranked #2578.

John Overdeck first reported a position in DXCM in Q2 2013 and has held it in 36 quarters since. The position peaked at $193M in Q4 2021. 966 funds tracked by Wall St. Rank hold DXCM as of Q2 2026.

  • John Overdeck held 46,697 shares of DexCom worth $3.15M as of Q2 2026.
  • John Overdeck sold 1,068,251 DexCom shares in Q2 2026, an estimated $71.2M.
  • DexCom made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #2578 holding.
  • John Overdeck first reported a position in DexCom in Q2 2013 and has held it in 36 quarters since.
  • John Overdeck's DexCom position peaked at $193M in Q4 2021.
  • 966 funds tracked by Wall St. Rank held DexCom as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.