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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
2024
Q4 		– Sell
-54,800
Closed -$3.67M – 3270
2024
Q3 		$3.67M Hold
54,800
– – 0.01% 1256
2024
Q2 		$6.21M Hold
54,800
– – 0.01% 912
2024
Q1 		$7.6M Buy
54,800
+50,700
+1,237% +$6.37M 0.02% 765
2023
Q4 		$509K Sell
4,100
-20,100
-83% -$2.05M ﹤0.01% 2451
2023
Q3 		$2.26M Buy
+24,200
New +$2.73M 0.01% 1302
2022
Q1 		– Sell
-24,000
Closed -$3.22M – 3116
2021
Q4 		$3.22M Sell
24,000
-6,000
-20% -$862K 0.01% 1526
2021
Q3 		$4.1M Sell
30,000
-1,200
-4% -$151K 0.01% 1379
2021
Q2 		$3.33M Buy
31,200
+15,200
+95% +$1.46M 0.01% 1472
2021
Q1 		$1.44M Sell
16,000
-118,800
-88% -$11.2M ﹤0.01% 1983
2020
Q4 		$12.5M Buy
134,800
+74,400
+123% +$6.64M 0.04% 521
2020
Q3 		$6.22M Sell
60,400
-20,000
-25% -$2.09M 0.02% 709
2020
Q2 		$8.15M Sell
80,400
-8,800
-10% -$787K 0.04% 458
2020
Q1 		$6M Buy
89,200
+43,600
+96% +$2.71M 0.05% 424
2019
Q4 		$2.49M Buy
45,600
+13,600
+43% +$645K 0.01% 1417
2019
Q3 		$1.19M Buy
32,000
+20,000
+167% +$777K ﹤0.01% 1829
2019
Q2 		$450K Buy
+12,000
New +$377K ﹤0.01% 2583
2018
Q2 		– Sell
-215,600
Closed -$4M – 3387
2018
Q1 		$4M Buy
+215,600
New +$3.19M 0.01% 1083
2017
Q3 		– Sell
-44,000
Closed -$805K – 2826
2017
Q2 		$805K Sell
44,000
-51,200
-54% -$946K ﹤0.01% 2034
2017
Q1 		$2.02M Buy
+95,200
New +$1.86M 0.01% 1449

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.