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DexCom, Inc. (DXCM) institutional ownership

Latest close $75.69 Jul 20, 2026
Market cap$28.3B 52-week range SectorHealthcare
Funds holding · Q1 2026
924
reported DXCM position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net bought $60M
511 buyers · 413 sellers

DexCom, Inc. (DXCM) price and institutional activity

Dates

Q1 2026

$3.6B bought by 511 investors
Wellington Management Group LLP$435MAlliancebernstein L.P.$299M +509 more
$3.6B sold by 413 investors
Norges-$507MJennison Associates LLC-$330M +411 more
Bought Sold Totals per quarter; hover a bar for the names.

DexCom, Inc. (DXCM) institutional activity · 413

Investor Type Est. change Change Δ Own Date
Norges · Exited −$507M
Change −7.3M Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −$507M −7.3M −100.0% Q1 2026
Jennison Associates LLC · Reduced −$330M
Change −4.7M Date Q1 2026
Jennison Associates LLC Reduced· Q1 2026 −$330M −4.7M Q1 2026
D. E. Shaw & Co., Inc. · Reduced −$272M
Change −3.9M Δ Own −99.3% Date Q1 2026
D. E. Shaw & Co., Inc. Reduced· Q1 2026 −$272M −3.9M −99.3% Q1 2026
Nuveen, LLC · Reduced −$202M
Change −2.9M Date Q1 2026
Nuveen, LLC Reduced· Q1 2026 −$202M −2.9M Q1 2026
J. Stern & Co. LLP · Reduced −$110M
Change −1.6M Date Q1 2026
J. Stern & Co. LLP Reduced· Q1 2026 −$110M −1.6M Q1 2026
Los Angeles Capital Management LLC · Reduced −$109M
Change −1.6M Date Q1 2026
Los Angeles Capital Management LLC Reduced· Q1 2026 −$109M −1.6M Q1 2026
Castle Hook Partners LP · Reduced −$101M
Change −1.4M Date Q1 2026
Castle Hook Partners LP Reduced· Q1 2026 −$101M −1.4M Q1 2026
Westfield Capital Management Co LP · Reduced −$98M
Change −1.4M Date Q1 2026
Westfield Capital Management Co LP Reduced· Q1 2026 −$98M −1.4M Q1 2026
Squarepoint Ops LLC · Reduced −$96M
Change −1.4M Date Q1 2026
Squarepoint Ops LLC Reduced· Q1 2026 −$96M −1.4M Q1 2026
Vestal Point Capital, LP · Exited −$89M
Change −1.3M Δ Own −100.0% Date Q1 2026
Vestal Point Capital, LP Exited· Q1 2026 −$89M −1.3M −100.0% Q1 2026
Soleus Capital Management, L.P. · Reduced −$81M
Change −1.2M Date Q1 2026
Soleus Capital Management, L.P. Reduced· Q1 2026 −$81M −1.2M Q1 2026
Alphabet Inc. · Exited −$72M
Change −1.0M Δ Own −100.0% Date Q1 2026
Alphabet Inc. Exited· Q1 2026 −$72M −1.0M −100.0% Q1 2026
Pacer Advisors, Inc. · Exited −$68M
Change −983K Δ Own −100.0% Date Q1 2026
Pacer Advisors, Inc. Exited· Q1 2026 −$68M −983K −100.0% Q1 2026
Point72 Asset Management, L.P. · Reduced −$67M
Change −960K Δ Own −78.9% Date Q1 2026
Point72 Asset Management, L.P. Reduced· Q1 2026 −$67M −960K −78.9% Q1 2026
Deutsche Bank AG · Reduced −$65M
Change −936K Date Q1 2026
Deutsche Bank AG Reduced· Q1 2026 −$65M −936K Q1 2026
Data through Q1 2026 · filed Jun 9, 2026
15 of 413

Famous investor activity in DexCom, Inc. (DXCM)

DexCom, Inc. (DXCM) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Sayer Kevin R. · Director Sell −$2.0M
Price $76.32 Qty −27K Owned 329K ΔOwn −7.5% Trade date Jul 20, 2026 Filed date Jul 21, 2026
Sayer Kevin R. Director Sell $76.32 −27K −$2.0M 329K −7.5% Jul 20, 2026 Jul 21, 2026
Brown Michael Jon · Officer Sell −$127K
Price $74.42 Qty −2K Owned 105K ΔOwn −1.6% Trade date Jul 15, 2026 Filed date Jul 16, 2026
Brown Michael Jon Officer Sell $74.42 −2K −$127K 105K −1.6% Jul 15, 2026 Jul 16, 2026
Sayer Kevin R. · Director Sell −$1.9M
Price $72.00 Qty −27K Owned 356K ΔOwn −7.0% Trade date Jul 6, 2026 Filed date Jul 7, 2026
Sayer Kevin R. Director Sell $72.00 −27K −$1.9M 356K −7.0% Jul 6, 2026 Jul 7, 2026
Brown Michael Jon · Officer Sell −$128K
Price $75.55 Qty −2K Owned 106K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Brown Michael Jon Officer Sell $75.55 −2K −$128K 106K Jun 15, 2026 Jun 17, 2026
Foletta Mark G. · Director 2 operations −$297K
Price $74.10–$74.82 Qty −4K Owned 53K Trade date Jun 15, 2026 Filed date Jun 17, 2026
Foletta Mark G. Director 2 operations $74.10–$74.82 −4K −$297K 53K Jun 15, 2026 Jun 17, 2026
Coleman Jon · Officer Sell −$364K
Price $74.13 Qty −5K Owned 95K Trade date Jun 4, 2026 Filed date Jun 5, 2026
Coleman Jon Officer Sell $74.13 −5K −$364K 95K Jun 4, 2026 Jun 5, 2026
Coleman Jon · Officer Sell −$359K
Price $73.00 Qty −5K Owned 100K Trade date Jun 3, 2026 Filed date Jun 5, 2026
Coleman Jon Officer Sell $73.00 −5K −$359K 100K Jun 3, 2026 Jun 5, 2026
Altman Steven R. · Director Grant (A) 6K
Owned 6K Trade date May 28, 2026 Filed date Jun 1, 2026
Altman Steven R. Director Grant (A) 6K 6K May 28, 2026 Jun 1, 2026
Malady Kyle · Director Grant (A) 6K
Owned 28K Trade date May 28, 2026 Filed date Jun 1, 2026
Malady Kyle Director Grant (A) 6K 28K May 28, 2026 Jun 1, 2026
Augustinos Nicholas · Director Grant (A) 6K
Owned 6K Trade date May 28, 2026 Filed date Jun 1, 2026
Augustinos Nicholas Director Grant (A) 6K 6K May 28, 2026 Jun 1, 2026
Foletta Mark G. · Director Grant (A) 6K
Owned 6K Trade date May 28, 2026 Filed date Jun 1, 2026
Foletta Mark G. Director Grant (A) 6K 6K May 28, 2026 Jun 1, 2026
Heller Bridgette P. · Director Grant (A) 6K
Owned 31K Trade date May 28, 2026 Filed date Jun 1, 2026
Heller Bridgette P. Director Grant (A) 6K 31K May 28, 2026 Jun 1, 2026
Osterloh Albert Frederick IV · Director Grant (A) 2K
Owned 9K Trade date May 28, 2026 Filed date Jun 1, 2026
Osterloh Albert Frederick IV Director Grant (A) 2K 9K May 28, 2026 Jun 1, 2026
Driscoll Rimma · Director Grant (A) 6K
Owned 17K Trade date May 28, 2026 Filed date Jun 1, 2026
Driscoll Rimma Director Grant (A) 6K 17K May 28, 2026 Jun 1, 2026
Ashley Euan A. · Director Grant (A) 6K
Owned 13K Trade date May 28, 2026 Filed date Jun 1, 2026
Ashley Euan A. Director Grant (A) 6K 13K May 28, 2026 Jun 1, 2026
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15 of 65 Sign in to continue to older insider transactions.

DexCom, Inc. (DXCM) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Vanguard Group Inc 44.5M
% of shares outstanding 11.5% Filing date Feb 13, 2024
Vanguard Group Inc 44.5M 11.5% Feb 13, 2024
Blackrock, Inc. 40.5M
% of shares outstanding 10.4% Filing date Dec 6, 2024
Blackrock, Inc. 40.5M 10.4% Dec 6, 2024
BlackRock Inc. 32.9M
% of shares outstanding 8.5% Filing date Jan 25, 2024
BlackRock Inc. 32.9M 8.5% Jan 25, 2024
Vanguard Capital Management LLC 28.8M
% of shares outstanding 7.5% Filing date Apr 29, 2026
Vanguard Capital Management LLC 28.8M 7.5% Apr 29, 2026
Vanguard Portfolio Management LLC 19.3M
% of shares outstanding 5.0% Filing date Apr 29, 2026
Vanguard Portfolio Management LLC 19.3M 5.0% Apr 29, 2026
Baillie Gifford & Co 4.7M
% of shares outstanding 4.8% Filing date Dec 6, 2021
Baillie Gifford & Co 4.7M 4.8% Dec 6, 2021
FMR LLC 4.6M
% of shares outstanding 4.8% Filing date Feb 9, 2022
FMR LLC 4.6M 4.8% Feb 9, 2022
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DexCom, Inc. (DXCM) ownership FAQ

Who owns DXCM?

924 reporting institutions disclosed DXCM position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.