William Blair & Company
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William Blair & Company’s DexCom DXCM Stock Holding History

William Blair & Company’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
2017
Q3 		– Sell
-18,000
Closed -$329K – 1405
2017
Q2 		$329K Sell
18,000
-2,400
-12% -$44.3K ﹤0.01% 1146
2017
Q1 		$432K Buy
+20,400
New +$398K ﹤0.01% 945
2016
Q4 		– Sell
-17,600
Closed -$386K – 1416
2016
Q3 		$386K Buy
+17,600
New +$392K ﹤0.01% 924

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

William Blair & Company's DXCM Position: Q2 2026 in Review

William Blair & Company reduced its DexCom (DXCM) stake by 14% in Q2 2026, selling an estimated $17.4M and leaving 1,665,665 shares worth $112M. The position accounts for 0.29% of the portfolio, ranked #80.

William Blair & Company first reported a position in DXCM in Q2 2013 and has held it in 53 quarters since. The position peaked at $658M in Q3 2021. 974 funds tracked by Wall St. Rank hold DXCM as of Q2 2026.

  • William Blair & Company held 1,665,665 shares of DexCom worth $112M as of Q2 2026.
  • William Blair & Company sold 261,722 DexCom shares in Q2 2026, an estimated $17.4M.
  • DexCom made up 0.29% of William Blair & Company's portfolio in Q2 2026, its #80 holding.
  • William Blair & Company first reported a position in DexCom in Q2 2013 and has held it in 53 quarters since.
  • William Blair & Company's DexCom position peaked at $658M in Q3 2021.
  • 974 funds tracked by Wall St. Rank held DexCom as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.