Ticker · CUSIP 252131107

DXCM

DEXCOM INC

Healthcare·Medical Devices

···Share

Holders (tracked)

Combined shares

43,087,402

Combined value

$2.86B

Last close

$63.98

Quarter

2025Q4

Price is -3.6% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$63.98-4.59 (-6.69%)H $89.53 · L $54.84 · Avg Vol 4.8M

Congress buy

Tracked holders · last 8 quarters

+4 vs previous quarter over the last 8.

SEC event timeline

30 events

Brown Michael Jon · EVP, Chief Legal Officer
2026-04-15
Sold $107.2K @ $63.04
Insider sell
Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+24,004 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) trimmed2026-02-17
−6,691,590 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+1,735,081 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+2,658,158 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
−15,000 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−418,223 shares · 2025Q4
Position
Steve Cohen (Point72) trimmed2026-02-17
−1,018,380 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−1,841,388 shares · 2025Q4
Position
T. Rowe Price trimmed2026-02-17
−429,137 shares · 2025Q4
Position
Wellington Management added2026-02-17
+2,994,303 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+28,769 shares · 2025Q4
Position
Sands Capital Management exited2026-02-13
−4,934,189 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+603,232 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+7,282,743 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−33,151 shares · 2025Q4
Position
First Eagle Investment Management opened position2026-02-04
+58 shares · 2025Q4
Position
Baillie Gifford & Co trimmed2026-01-23
−329,581 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+3,179,954 shares · 2025Q3
Position
AQR Capital Management trimmed2025-11-14
−179,750 shares · 2025Q3
Position
Steve Cohen (Point72) opened position2025-11-14
+2,235,987 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+1,306,349 shares · 2025Q3
Position
D.E. Shaw & Co. added2025-11-14
+241,897 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+149,640 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−238,292 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) trimmed2025-11-14
−60,000 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+143,762 shares · 2025Q3
Position
Sands Capital Management trimmed2025-11-13
−5,013,755 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−5,192,796 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) trimmed2025-11-13
−133,316 shares · 2025Q3
Position

Insider activity

Last 30 days

Net (open-market)

−$107.2K

Buys

0 · $0

Sells

1 · $107.2K

Unique insiders

Date	Insider	Code	Shares	Price	Value
04-15	Brown Michael Jon EVP, Chief Legal Officer · Officer	S	1,700	$63.04	$107.2K

View full insider history for DXCM →

Follow-the-investor returns

If you'd copied each holder of DXCM…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
First Eagle Investment Management	2025Q4	$66.36	-3.6%	$4K
Steve Cohen (Point72)	2016Q1	$66.37	-3.6%	$1.1M
Steve Cohen (Point72)	2016Q1	$66.37	-3.6%	$1.1M
Steve Cohen (Point72)	2016Q1	$66.37	-3.6%	$1.1M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-3.7%	$101.7M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-3.7%	$101.7M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-3.7%	$101.7M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-3.7%	$61.6M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-3.7%	$61.6M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-3.7%	$61.6M
D.E. Shaw & Co.	2016Q1	$66.60	-3.9%	$13.2M
D.E. Shaw & Co.	2016Q1	$66.60	-3.9%	$13.2M
Wellington Management	2016Q1	$67.54	-5.3%	$196.6M
Two Sigma Investments	2016Q1	$67.71	-5.5%	$69.3M
AQR Capital Management	2016Q1	$68.39	-6.4%	$198.5M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-9.8%	$1.6M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-9.8%	$1.6M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-9.8%	$1.6M
Mario Gabelli (GAMCO)	2016Q1	$73.85	-13.4%	$3.3M
Ron Baron (Baron Capital / BAMCO)	2016Q1	$82.47	-22.4%	$16.5M
Renaissance Technologies	2016Q1	$84.28	-24.1%	$92.4M
Ray Dalio (Bridgewater Associates)	2020Q3	$94.89	-32.6%	$9.5M
Baillie Gifford & Co	2016Q1	$95.53	-33.0%	$995.1M
Ken Fisher (Fisher Asset Mgmt)	2020Q2	$100.07	-36.1%	$14.7M
T. Rowe Price	2016Q1	$115.10	-44.4%	$94.0M
Norges Bank (Norway SWF)	2016Q1	$25405.08	-99.7%	$465.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Norges Bank (Norway SWF)
+7,282,743
$483.4M
Paul Tudor Jones (Tudor Investment)
+24,004
$1.6M
First Eagle Investment Management
+58
$4K

Added to5

Wellington Management
+2,994,303
$198.7M
AQR Capital Management
+2,658,158
$176.4M
D.E. Shaw & Co.
+1,735,081
$115.2M
Renaissance Technologies
+603,232
$40.0M
Ray Dalio (Bridgewater Associates)
+28,769
$1.9M

Trimmed8

Ken Griffin (Citadel Advisors)
−6,691,590
$444.1M
Izzy Englander (Millennium Mgmt)
−1,841,388
$122.2M
Steve Cohen (Point72)
−1,018,380
$67.6M
Two Sigma Investments
−418,223
$27.8M
Baillie Gifford & Co
−329,581
$21.9M
Ken Fisher (Fisher Asset Mgmt)
−33,151
$2.2M
Ron Baron (Baron Capital / BAMCO)
−15,000
$996K
T. Rowe Price
−429,137
$28K

Exited1

Sands Capital Management
−4,934,189
$332.0M

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	23	21,816,755	$414.21B	—
2022Q2	27	95,114,114	$254.11B	+4
2022Q3	24	94,434,817	$7.61B	-3
2022Q4	27	90,929,699	$10.30B	+3
2023Q1	25	89,565,797	$10.41B	-2
2023Q2	28	83,098,530	$10.68B	+3
2023Q3	26	80,600,121	$7.52B	-2
2023Q4	26	83,621,137	$10.38B	—
2024Q1	25	81,035,719	$11.24B	-1
2024Q2	28	81,526,661	$9.24B	+3
2024Q3	22	49,861,744	$3.34B	-6
2024Q4	23	53,390,012	$4.15B	+1
2025Q1	24	37,575,493	$2.56B	+1
2025Q2	24	41,532,934	$3.63B	—
2025Q3	22	42,499,993	$2.86B	-2
2025Q4	26	43,087,402	$2.86B	+4

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-05-15	Rob Bresnahan	Buy	$1K – $15K	PDF ↗
2025-04-08	Rob Bresnahan	Sell	$1K – $15K	PDF ↗
2025-02-25	Rob Bresnahan	Buy	$1K – $15K	PDF ↗

Who owns DXCM

26 super-investors · 2025Q4

Tracked stake

43.09M

Combined value

$2.86B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New5Added6Trim14Held1

#	Manager	Shares	Value	% of book	Last action	8Q trend
1	Baillie Gifford & Co	15.55M	$1.03B	0.9%	Trim−329.6K
2	Norges Bank Norway SWF	7.28M	$483M	0.1%	New+7.28M
3	D.E. Shaw & Co.	3.94M	$261M	0.1%	Added+1.74M
4	AQR Capital Management	3.10M	$206M	0.1%	Added+2.66M
5	Wellington Management	3.07M	$204M	0.0%	Added+2.99M
6	Izzy Englander Millennium Mgmt	1.59M	$106M	0.0%	Trim−1.84M
7	T. Rowe Price	1.47M	$97M	0.0%	Trim−429.1K
8	Renaissance Technologies	1.44M	$96M	0.1%	Added+603.2K
9	Steve Cohen Point72	1.22M	$81M	0.1%	Trim−1.02M
10	Two Sigma Investments	1.08M	$72M	0.1%	Trim−418.2K
11	Ken Griffin Citadel Advisors	963.4K	$64M	0.0%	Trim−6.69M
12	Ken Griffin Citadel Advisors	683.0K	$45M	0.0%	Trim−6.69M
13	Ron Baron Baron Capital / BAMCO	257.5K	$17M	0.0%	Trim−15.0K
14	Ken Fisher Fisher Asset Mgmt	230.4K	$15M	0.0%	Trim−33.2K
15	Izzy Englander Millennium Mgmt	225.6K	$15M	0.0%	Trim−1.84M
16	Steve Cohen Point72	216.7K	$14M	0.0%	Trim−1.02M
17	D.E. Shaw & Co.	207.0K	$14M	0.0%	Added+1.74M
18	Ray Dalio Bridgewater Associates	149.3K	$10M	0.0%	Added+28.8K
19	Izzy Englander Millennium Mgmt	107.8K	$7M	0.0%	Trim−1.84M
20	Paul Tudor Jones Tudor Investment	87.1K	$6M	0.0%	New+24.0K
21	Ken Griffin Citadel Advisors	86.9K	$6M	0.0%	Trim−6.69M
22	Mario Gabelli GAMCO	52.0K	$3M	0.0%	Held
23	Paul Tudor Jones Tudor Investment	25.5K	$2M	0.0%	New+24.0K
24	Paul Tudor Jones Tudor Investment	24.0K	$2M	0.0%	New+24.0K
25	Steve Cohen Point72	16.8K	$1M	0.0%	Trim−1.02M
26	First Eagle Investment Management	58	$4K	0.0%	New+58	—

Recent moves

20 transactions

NEWPaul Tudor Jones (Tudor Investment)
+24,004 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−6,691,590 · 2025Q4
TRIMSteve Cohen (Point72)
−1,018,380 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−1,841,388 · 2025Q4
TRIMTwo Sigma Investments
−418,223 · 2025Q4
TRIMT. Rowe Price
−429,137 · 2025Q4
ADDD.E. Shaw & Co.
+1,735,081 · 2025Q4
ADDAQR Capital Management
+2,658,158 · 2025Q4
ADDWellington Management
+2,994,303 · 2025Q4
TRIMRon Baron (Baron Capital / BAMCO)
−15,000 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+28,769 · 2025Q4
SOLDSands Capital Management
−4,934,189 · 2025Q4
ADDRenaissance Technologies
+603,232 · 2025Q4
NEWNorges Bank (Norway SWF)
+7,282,743 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−33,151 · 2025Q4
NEWFirst Eagle Investment Management
+58 · 2025Q4
TRIMBaillie Gifford & Co
−329,581 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+3,179,954 · 2025Q3
NEWSteve Cohen (Point72)
+2,235,987 · 2025Q3
ADDTwo Sigma Investments
+1,306,349 · 2025Q3

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