Ticker · CUSIP 252131107

DXCM

DEXCOM INC

Healthcare·Medical Devices

···Share

Holders (tracked)

Combined shares

43,087,402

Combined value

$2.76B

Last close

$61.23

Quarter

2025Q4

Tracked holders · last 8 quarters

+4 vs previous quarter over the last 8.

Price is -4.5% vs the avg quarter-end implied price across tracked holders.

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

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 13F share-delta history. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Ken Fisher (Fisher Asset Mgmt)	2020Q2	$45.54	+34.4%	$14.1M
T. Rowe Price	2016Q1	$51.87	+18.0%	$89.9M
Renaissance Technologies	2016Q1	$52.85	+15.8%	$88.5M
First Eagle Investment Management	2025Q4	$66.36	-7.7%	$4K
Steve Cohen (Point72)	2016Q1	$66.37	-7.7%	$1.0M
Steve Cohen (Point72)	2016Q1	$66.37	-7.7%	$1.0M
Steve Cohen (Point72)	2016Q1	$66.37	-7.7%	$1.0M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-7.8%	$97.3M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-7.8%	$97.3M
Izzy Englander (Millennium Mgmt)	2016Q1	$66.44	-7.8%	$97.3M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-7.9%	$59.0M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-7.9%	$59.0M
Ken Griffin (Citadel Advisors)	2016Q1	$66.47	-7.9%	$59.0M
D.E. Shaw & Co.	2016Q1	$66.60	-8.1%	$12.7M
D.E. Shaw & Co.	2016Q1	$66.60	-8.1%	$12.7M
Wellington Management	2016Q1	$67.00	-8.6%	$188.2M
Two Sigma Investments	2016Q1	$67.71	-9.6%	$66.3M
AQR Capital Management	2016Q1	$68.33	-10.4%	$190.0M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-13.7%	$1.6M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-13.7%	$1.6M
Paul Tudor Jones (Tudor Investment)	2017Q4	$70.93	-13.7%	$1.6M
Mario Gabelli (GAMCO)	2016Q1	$73.85	-17.1%	$3.2M
Ron Baron (Baron Capital / BAMCO)	2016Q1	$82.43	-25.7%	$15.8M
Ray Dalio (Bridgewater Associates)	2020Q3	$94.89	-35.5%	$9.1M
Baillie Gifford & Co	2016Q1	$95.51	-35.9%	$952.3M
Norges Bank (Norway SWF)	2016Q1	$25405.08	-99.8%	$445.9M

Who moved on this name in 2025Q4

13F transactions 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	$280.3M	-3
2022Q4	27	90,929,699	$7.38B	+3
2023Q1	25	89,565,797	$9.57B	-2
2023Q2	28	83,098,530	$10.19B	+3
2023Q3	26	80,600,121	$7.21B	-2
2023Q4	26	83,621,137	$9.69B	—
2024Q1	25	81,035,719	$10.71B	-1
2024Q2	28	81,526,661	$8.85B	+3
2024Q3	22	49,861,744	$3.13B	-6
2024Q4	23	53,390,012	$4.00B	+1
2025Q1	24	37,575,493	$2.46B	+1
2025Q2	24	41,532,934	$3.47B	—
2025Q3	22	42,499,993	$2.73B	-2
2025Q4	26	43,087,402	$2.76B	+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

$2.76B

% 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	Renaissance Technologies	1.44M	$96M	0.1%	Added+603.2K
8	Steve Cohen Point72	1.22M	$81M	0.1%	Trim−1.02M
9	Two Sigma Investments	1.08M	$72M	0.1%	Trim−418.2K
10	Ken Griffin Citadel Advisors	963.4K	$64M	0.0%	Trim−6.69M
11	Ken Griffin Citadel Advisors	683.0K	$45M	0.0%	Trim−6.69M
12	Ron Baron Baron Capital / BAMCO	257.5K	$17M	0.0%	Trim−15.0K
13	Ken Fisher Fisher Asset Mgmt	230.4K	$15M	0.0%	Trim−33.2K
14	Izzy Englander Millennium Mgmt	225.6K	$15M	0.0%	Trim−1.84M
15	Steve Cohen Point72	216.7K	$14M	0.0%	Trim−1.02M
16	D.E. Shaw & Co.	207.0K	$14M	0.0%	Added+1.74M
17	Ray Dalio Bridgewater Associates	149.3K	$10M	0.0%	Added+28.8K
18	Izzy Englander Millennium Mgmt	107.8K	$7M	0.0%	Trim−1.84M
19	Paul Tudor Jones Tudor Investment	87.1K	$6M	0.0%	New+24.0K
20	Ken Griffin Citadel Advisors	86.9K	$6M	0.0%	Trim−6.69M
21	Mario Gabelli GAMCO	52.0K	$3M	0.0%	Held
22	Paul Tudor Jones Tudor Investment	25.5K	$2M	0.0%	New+24.0K
23	Paul Tudor Jones Tudor Investment	24.0K	$2M	0.0%	New+24.0K
24	Steve Cohen Point72	16.8K	$1M	0.0%	Trim−1.02M
25	T. Rowe Price	1.47M	$97K	0.0%	Trim−429.1K
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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