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DXCM

DXCM — Institutional Investor Activity

Dexcom INC

-$1.9B

Net Activity

Institutions Holding

963

Popularity Rank

#471

Avg Weight

0.13%

Total Value

$23.2B

Ownership Trend

963 institutions currently hold DXCM, with 505 net buyers and 430 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

430

Net Buying Institutions

505

Key Holders

Key Holders

Top 5 by Value

BI
BlackRock, Inc.
$2.4B
VC
Vanguard Capital Management LLC
$1.6B
VP
Vanguard Portfolio Management LLC
$1.2B
SS
State Street CORP
$1.1B
BG
Baillie Gifford & Co
$979.7M

Top 5 by Conviction

DC
Dsm Capital Partners LLC
2.14%
EP
Employees Provident Fund Board
1.04%
BG
Baillie Gifford & Co
1.00%
CB
CIBC Bancorp USA Inc.
0.36%
BW
Blair William & Co/il
0.35%
View all 963 holding institutions

Across its top 20 institutional holders, DXCM's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 23/100).

Quarterly Activity

Recent Activity

+$10.9B

Total Buy Value

$13.0B

Total Sell Value

New buy129
Trim335
Add376
Sold out95

505

Net Buyers

430

Net Sellers

Game Theory Scenarios

Bearish— Distribution Signal

Institutional and Insider Selling Align, DXCM Bearish

Signal Basis

Institutional net value change of -$1.9B in Q1 2026 shows heavy selling, despite higher buyer count; insiders sold $1.93M in July, confirming same direction.

Confirmation

Continued institutional net outflows and additional insider sales in the coming quarter would reinforce the bearish thesis.

Invalidation Risk

A reversal in institutional flows to net accumulation or cessation of insider selling would invalidate this view.

This game-theory analysis is AI-assisted and derived from public regulatory filings, covering historical data only. For informational purposes, not investment advice.

Smart Money Convergence

DXCM does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Insider Trading (Form 4)

90d confidence

0

unique buyers

—

buy value

data as of 2026-07-18

12-Month Buy/Sell Activity

Jan 25
Jun 25
Sep 25
Mar 26
BuySell
ActionInsiderTitleDateValue
SellMichael Jon BrownEVP Chief Legal Compliance Off2026-07-15$127K
SellKevin R SayerExecutive Chair2026-07-06$1.93M
SellMichael Jon BrownEVP Chief Legal Compliance Off2026-03-16$110K
SellHeller Bridgette PDirector2026-02-12$69K
SellCollins Richard AlexanderDirector2025-11-14$172K
SellHeller Bridgette PDirector2025-11-12$59K
BuyLeach Jacob StevenPresident, CEO, and Director2025-11-10$139K
BuyLeach Jacob StevenPresident, CEO, and Director2025-11-10$863K
View all insider trades →

Form 144 Pre-Sale Notices

5

Filings (90d)

$2.85M

Total Est. Value

39K shares

Planned Shares

Last Filed 2026-07-15
FilerTitle/RelationshipFiling DatePlanned SharesEst. Value
MICHAEL BROWNOfficer2026-07-152K shares$127K
KEVIN R SAYEROfficer, Director2026-07-0627K shares$1.93M
Brown Michael JonOfficer2026-06-152K shares$128K
FOLETTA MARK GDirector2026-06-154K shares$303K
Coleman JonOfficer2026-06-045K shares$364K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

CUSIP

252131107, 252131957

FAQ

Who are the top institutional investors holding DEXCOM INC (DXCM)?
Major stakeholders currently include BlackRock, Inc. ($2.4B), Vanguard Capital Management LLC ($1.6B), Vanguard Portfolio Management LLC ($1.2B). Based on the latest 13F filings, there are a total of 963 tracked investment funds and institutions maintaining positions in DXCM.
What is the overall institutional sentiment toward DXCM recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $1.9B, driven by 505 managers accumulating shares while 430 reduced their exposure.
Which institutions have been selling or reducing their DXCM positions?
In the latest period, 335 funds trimmed their holdings, and 95 managers completely exited their positions. The aggregate reported sell value was $13.0B.
Are there any notable investors adding DXCM to their portfolios?
Yes, buying activity remains notable. 129 institutions opened new positions in {ticker}, and 376 existing holders added to their shares. The total reported buy value for the quarter amounted to $10.9B.

Related Stocks

Same Sector

Other stocks in the same GICS sector

JNJ

Johnson & Johnson

Institutions Holding

4,603

Total reported value

$438.8B

861 institutions currently hold both DXCM and this stock

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LLY

Eli Lilly & Co

Institutions Holding

4,337

Total reported value

$730.5B

886 institutions currently hold both DXCM and this stock

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ABBV

Abbvie INC

Institutions Holding

4,024

Total reported value

$283.9B

847 institutions currently hold both DXCM and this stock

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Trending Institutional Adds

The most-added stocks by 13F institutions this quarter

MSFT

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Institutions Holding

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Total reported value

$2.1T

3245 13F institutions increased their position this quarter

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AMZN

Amazon.com INC

Institutions Holding

5,957

Total reported value

$1.5T

3028 13F institutions increased their position this quarter

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Nvidia CORP

Institutions Holding

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Total reported value

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