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939 hedge funds and large institutions have $31.9B invested in DexCom in 2025 Q2 according to their latest regulatory filings, with 123 funds opening new positions, 340 increasing their positions, 349 reducing their positions, and 105 closing their positions.

New
Increased
Maintained
Reduced
Closed

29% more capital invested

Capital invested by funds: $24.8B → $31.9B (+$7.08B)

17% more first-time investments, than exits

New positions opened: 123 | Existing positions closed: 105

14% more funds holding in top 10

Funds holding in top 10: 78 (+1)

1% more funds holding

Funds holding: 932939 (+7)

0.08% more ownership

Funds ownership: 93.29%93.37% (+0.08%)

3% less repeat investments, than reductions

Existing positions increased: 340 | Existing positions reduced: 349

6% less call options, than puts

Call options by funds: $490M | Put options by funds: $519M

Holders
939
Holders Change
+7
Holders Change %
+0.75%
% of All Funds
12.36%
Holding in Top 10
8
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+14.29%
% of All Funds
0.11%
New
123
Increased
340
Reduced
349
Closed
105
Calls
$490M
Puts
$519M
Net Calls
-$28.6M
Net Calls Change
-$92.6M
Name Holding Trade Value Shares
Change
Change in
Stake
Assenagon Asset Management
51
Assenagon Asset Management
Luxembourg
$105M +$43.7M +557,576 +86%
Swiss National Bank
52
Swiss National Bank
Switzerland
$104M +$6.69M +85,300 +8%
Mitsubishi UFJ Asset Management
53
Mitsubishi UFJ Asset Management
Japan
$95.1M +$7.89M +100,607 +10%
CAM
54
Congress Asset Management
Massachusetts
$91.8M -$8.44M -107,637 -9%
Fidelity International
55
Fidelity International
Bermuda
$91.2M +$47.2M +602,785 +136%
AI
56
Alphabet Inc
California
$90.5M
Mackenzie Financial
57
Mackenzie Financial
Ontario, Canada
$88.9M -$3.39M -43,245 -4%
TG
58
TCW Group
California
$87.3M +$4.88M +62,270 +7%
Sumitomo Mitsui Trust Group
59
Sumitomo Mitsui Trust Group
Japan
$84M +$802K +10,234 +1%
Prudential Financial
60
Prudential Financial
New Jersey
$83.4M -$41.7M -532,237 -36%
Dimensional Fund Advisors
61
Dimensional Fund Advisors
Texas
$82.7M -$252K -3,219 -0.3%
Bessemer Group
62
Bessemer Group
New Jersey
$82.3M -$482K -6,148 -0.6%
FCM
63
Frontier Capital Management
Massachusetts
$81.4M -$2.81M -35,907 -4%
CC
64
Chicago Capital
Illinois
$77.4M +$66.6K +850 +0.1%
SIMG
65
Stephens Investment Management Group
Texas
$76.6M +$2.88M +36,748 +4%
BG
66
Bellevue Group
Switzerland
$75.1M -$15.9M -203,280 -19%
First Trust Advisors
67
First Trust Advisors
Illinois
$74.3M +$16M +204,145 +32%
DekaBank Deutsche Girozentrale
68
DekaBank Deutsche Girozentrale
Germany
$73.7M +$994K +12,685 +2%
RhumbLine Advisers
69
RhumbLine Advisers
Massachusetts
$70.7M +$38K +485 +0.1%
Pictet Asset Management
70
Pictet Asset Management
Switzerland
$70.3M -$5.86M -74,779 -8%
Principal Financial Group
71
Principal Financial Group
Iowa
$69.5M -$709K -9,041 -1%
HSBC Holdings
72
HSBC Holdings
United Kingdom
$68.6M -$14.1M -180,088 -19%
Neuberger Berman Group
73
Neuberger Berman Group
New York
$68.2M +$28.9M +368,103 +89%
Envestnet Asset Management
74
Envestnet Asset Management
Illinois
$66.8M +$9.96M +127,101 +20%
Canada Pension Plan Investment Board
75
Canada Pension Plan Investment Board
Ontario, Canada
$64.8M +$13.4M +171,139 +30%

DXCM Hedge Fund Activity: Q2 2025 in Review

939 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in DexCom (DXCM) for Q2 2025, worth a combined $31.9B — up 29% from $24.8B a quarter earlier.

Buyers outnumbered sellers: 123 funds opened new DXCM positions and 105 closed out — a net gain of 18 holders — while 340 added to existing stakes and 349 trimmed.

The largest buyer was Massachusetts Financial Services, adding an estimated $267M. The largest seller was Capital Research Global Investors, cutting an estimated $520M.

  • 939 institutional investors held DexCom (DXCM) as of Q2 2025, up from 932 in Q1 2025.
  • Funds reported $31.9B of DexCom stock for Q2 2025, up 29% quarter-over-quarter.
  • 123 funds opened new DexCom positions in Q2 2025 and 105 closed out, a net change of +18 holders.
  • The largest DexCom buyer in Q2 2025 was Massachusetts Financial Services, an estimated $267M added.
  • The largest DexCom seller in Q2 2025 was Capital Research Global Investors, an estimated $520M sold.

Based on aggregated 13F filings for Q2 2025.