DexCom

DXCM • NASDAQ

DexCom is a medical - devices company in the healthcare sector on NASDAQ, led by Jacob S. Leach, with a market cap of $25.4B. As of Q3 2025, 92% of shares are held by 883 institutional investors, with VANGUARD GROUP INC as the largest holder at 12.61%.

President and Chief Executive OfficerJacob S. Leach

Market Cap$25.4B

Medical - Devices

Healthcare

Employees9.6K

Websitedexcom.com

Country

United States of America

Overview

Overview of institutional ownership in DXCM as of Q3 2025 with a market cap of $26.4B

All Institutions

Institutions: 883
Value Held: $24.3B
Shares Held: 360.8M
Avg Position: $27.5M
Median Position: $1.0M

Hedge Funds

Hedge Funds: 79
Value Held: $2.1B
Shares Held: 31.2M
Avg Position: $26.5M
Median Position: $4.4M

Ownership Breakdown

Institutional (non-HF)

83.97%

$22.2B

Hedge Funds

7.95%

$2.1B

Retail & Other

8.08%

$2.1B

Based on market cap of $26.4B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in DXCM as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$3.3B 0.05% of portfolio	12.61% 49.5M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$2.6B 0.05% of portfolio	9.90% 38.8M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$1.1B 0.04% of portfolio	4.30% 16.9M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
B BAILLIE GIFFORD & CO Institution	-	$1.1B 0.79% of portfolio	4.05% 15.9M shares	≤ Q2 2013 Held for 12y 5m+	$134.80B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$734.9M 0.05% of portfolio	2.80% 11.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
JENNISON ASSOCIATES LLC Long Only Manager	Jeffrey Todd Becker CEO	$679.0M 0.40% of portfolio	2.57% 10.1M shares	≤ Q2 2013 Held for 12y 5m+	$171.73B
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	James Poucher CEO	$503.5M 0.11% of portfolio	1.91% 7.5M shares	≤ Q2 2013 Held for 12y 5m+	$460.61B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$456.1M 0.37% of portfolio	1.73% 6.8M shares	≤ Q2 2013 Held for 12y 5m+	$122.08B
N Nuveen, LLC Institution	-	$426.9M 0.11% of portfolio	1.62% 6.3M shares	Q1 2025 Held for 8 months	$377.89B
JPMORGAN CHASE & CO Institution	Jamie Dimon CEO	$418.1M 0.03% of portfolio	1.58% 6.2M shares	≤ Q2 2013 Held for 12y 5m+	$1.56T

Net Capital Flow

Institutional buying and selling activity for DXCM in Q3 2025

Net Flow: −$204.7M
Buyers: 351
Sellers: 457
Total Bought: +$2.8B
Total Sold: −$3.0B
Avg Position: $25.9M

Biggest Buyers

Institution	Net Bought	Current Position
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$364.0M +5.4M shares	$456.1M 6.8M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$214.0M +3.2M shares	$230.9M 3.4M shares
Holocene Advisors, LP Hedge Fund•Long/Short	+$164.0M +2.4M shares	$164.0M 2.4M shares
A Atlantic Trust Group, LLC Institution	+$154.4M +2.3M shares	$195.7M 2.9M shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	+$150.5M +2.2M shares	$150.5M 2.2M shares
BANK OF AMERICA CORP /DE/ Institution	+$88.8M +1.3M shares	$291.2M 4.3M shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$87.9M +1.3M shares	$101.0M 1.5M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$87.5M +1.3M shares	$109.8M 1.6M shares
VANGUARD GROUP INC Institution	+$76.3M +1.1M shares	$3.3B 49.5M shares
R ROYAL BANK OF CANADA Institution	+$74.0M +1.1M shares	$212.8M 3.2M shares

Biggest Sellers

Institution	Net Sold	Current Position
SANDS CAPITAL MANAGEMENT, LLC Long Only Manager	−$337.4M −5.0M shares	$332.0M 4.9M shares
Artisan Partners Limited Partnership Long Only Manager	−$219.9M −2.5M shares	Sold Off 0 shares
Capital Research Global Investors RIA/Wealth	−$204.5M −3.0M shares	$159.3M 2.4M shares
A AXA Institution	−$189.2M −2.2M shares	Sold Off 0 shares
Marshall Wace LLP Institution	−$142.2M −2.1M shares	$115.0M 1.7M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$110.9M −1.6M shares	$503.5M 7.5M shares
JENNISON ASSOCIATES LLC Long Only Manager	−$96.0M −1.4M shares	$679.0M 10.1M shares
A AMERICAN CENTURY COMPANIES INC Institution	−$94.0M −1.4M shares	$167.7M 2.5M shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	−$91.6M −1.4M shares	$822.8K 12.2K shares
Q Qube Research & Technologies Ltd Institution	−$89.7M −1.3M shares	$20.0M 297.9K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited DXCM in Q3 2025

New Positions: 35
New Value: $96.9M
Exited Positions: 122
Exited Value: $672.9M

New Positions

Institution	Position Value
Vestal Point Capital, LP Hedge Fund•Long/Short	$43.7M 650.0K shares
Castle Hook Partners LP Hedge Fund•Global Macro	$40.7M 604.3K shares
JUPITER ASSET MANAGEMENT LTD Long Only Manager	$3.5M 51.7K shares
Aurora Investment Counsel RIA/Wealth	$2.3M 34.0K shares
B Bell Asset Management Ltd Long Only Manager	$2.1M 31.4K shares
V Volterra Technologies LP Hedge Fund•Quant	$899.6K 13.4K shares
P Polymer Capital Management LLC Hedge Fund•Multi-Strategy	$750.4K 11.2K shares
R Rokos Capital Management LLP Hedge Fund•Global Macro	$645.1K 9.6K shares
Arista Wealth Management, LLC RIA/Wealth	$403.7K 6.0K shares
Tempus Wealth Planning, LLC RIA/Wealth	$276.8K 4.1K shares

Exited Positions

Institution	Previous Position
Artisan Partners Limited Partnership Long Only Manager	$219.9M 2.5M shares
A AXA Institution	$189.2M 2.2M shares
SG Capital Management LLC Hedge Fund•Event Driven	$26.6M 304.5K shares
E Eagle Health Investments LP Hedge Fund•Long/Short	$23.9M 273.8K shares
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy	$20.9M 239.8K shares
A Avidity Partners Management LP Hedge Fund•Long/Short	$18.4M 210.5K shares
Integral Health Asset Management, LLC Hedge Fund•Sector	$17.5M 200.0K shares
Polar Securities Inc. Hedge Fund•Multi-Strategy	$17.3M 197.7K shares
Rhenman & Partners Asset Management AB RIA/Wealth	$13.9M 159.5K shares
Covea Finance Private Equity	$9.7M 111.2K shares

Options Activity

Institutions with the largest Call and Put options positions in DXCM as of Q3 2025

Call Positions: 35
Call Value: $441.0M
Put Positions: 38
Put Value: $492.3M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$89.2M 13.3K contracts
H HSBC HOLDINGS PLC Institution	$52.6M 7.9K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$47.3M 7.0K contracts
UBS Group AG Institution	$44.4M 6.6K contracts
J JANE STREET GROUP, LLC Institution	$30.8M 4.6K contracts
Walleye Trading LLC RIA/Wealth	$29.6M 4.4K contracts
BANK OF AMERICA CORP /DE/ Institution	$24.1M 3.6K contracts
GOLDMAN SACHS GROUP INC Institution	$17.6M 2.6K contracts
R ROYAL BANK OF CANADA Institution	$16.1M 2.4K contracts
W WOLVERINE TRADING, LLC Institution	$13.4M 2.0K contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$98.3M 14.6K contracts
UBS Group AG Institution	$45.5M 6.8K contracts
H HSBC HOLDINGS PLC Institution	$32.5M 4.9K contracts
Caption Management, LLC Hedge Fund•Long/Short	$30.3M 4.5K contracts
BANK OF AMERICA CORP /DE/ Institution	$28.3M 4.2K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$27.8M 4.1K contracts
R Rokos Capital Management LLP Hedge Fund•Global Macro	$26.9M 4.0K contracts
GOLDMAN SACHS GROUP INC Institution	$25.7M 3.8K contracts
J JANE STREET GROUP, LLC Institution	$24.9M 3.7K contracts
CAPSTONE INVESTMENT ADVISORS, LLC Hedge Fund•Multi-Strategy	$16.7M 2.5K contracts

Most Committed Institutions

Institutions with DXCM as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Iron Triangle Partners LP Hedge Fund•Long/Short	Michael John O'Brien CFO	8.13% $57.2M	0.22% 850.0K shares	Q3 2025 Held for 2 months	$703.3M
MIG Capital, LLC Hedge Fund•Long/Short	Richard Paul Merage CEO	5.97% $40.7M	0.15% 605.5K shares	Q3 2023 Held for 2y 2m	$682.0M
A ALTA FOX CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Patrick Connor Haley Founder	5.69% $25.5M	0.10% 379.1K shares	Q2 2025 Held for 5 months	$448.5M
Prosight Management, LP Hedge Fund•Long/Short	William Lawrence Hawkins Managing Partner	3.49% $13.1M	0.05% 195.2K shares	Q2 2025 Held for 5 months	$376.7M
S Sofinnova Ventures Inc Venture Capital	James Irvin Healy Managing Partner	3.22% $52.5M	0.20% 779.6K shares	Q1 2021 Held for 4y 8m	$1.6B
S SIRIOS CAPITAL MANAGEMENT L P Hedge Fund•Long/Short	John Francis Brennan Managing Partner	2.98% $22.9M	0.09% 340.2K shares	Q1 2025 Held for 8 months	$768.2M
Alphabet Inc. Institution	Sundar Pichai CEO	2.90% $69.8M	0.26% 1.0M shares	Q4 2018 Held for 6y 11m	$2.4B
E ELLERSON GROUP INC /ADV Institution	-	2.87% $4.6M	0.02% 68.4K shares	Q4 2022 Held for 2y 11m	$160.7M
DSM CAPITAL PARTNERS LLC Long Only Manager	Eric Fuller Woodworth CIO	2.43% $170.5M	0.65% 2.5M shares	Q4 2023 Held for 1y 11m	$7.0B
Vestal Point Capital, LP Hedge Fund•Long/Short	Ryan Christopher Wilder CIO	2.22% $43.7M	0.17% 650.0K shares	Q3 2025 Held for 2 months	$2.0B

Hedge Fund Spotlight

Discover hedge funds investing in DXCM

Parkman Healthcare Partners LLC

Hedge Fund • Long/Short

Portfolio ManagerGregory Arthur Martinez

Portfolio Value: $910.1M
Positions: 89
Last Reported: Q3 2025

Sector Allocation

Position in DexCom

Market Value: $11.5M
Shares Held: 171.6K
Portfolio Weight: 1.27%
Owned Since: 2019-Q4

Top Holding	Sector	Market Value	Weight
1 Boston Scientific BSX	Medical - Devices Healthcare	$42.4M	4.66%
2 Alnylam Pharmaceuticals ALNY	Biotechnology Healthcare	$40.0M	4.39%
3 Insulet PODD	Medical - Devices Healthcare	$35.9M	3.94%