Richard Doubleday Net Worth - Insider Trades and Bio as of Jun 21, 2026

DXCMDEXCOM INCSEC CIK: 0001466545

Estimated Net Worth

$26.8 Million27.7%vs Last Year

Last Updated: May 18, 2026 03:55 PM EST

Transaction Summary

Total Transactions119

Buy-Sell Ratio0.00

Buy Transactions0

Sell Transactions92

Transaction Volume

Total Volume-$45.05M

Net Volume$45.05M

Buy Volume$0.00

Sell Volume-$45.05M

Trade Analysis

AVG Trade Size-$426.98K

Largest Trade$47.50

Most Active MonthMar

Most Active Year2014

Trading Sentiment

OverallBullish

Recent TradeSelling

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Richard Doubleday has an estimated net worth of $26.8 Million. This is based on reported shares in DEXCOM INC.

2014 was Richard Doubleday's most active year for acquiring shares with 14 total transactions. Richard Doubleday's most active month to acquire stocks was the month of February. 2014 was Richard Doubleday's most active year for disposing of shares, totalling 32 transactions. Richard Doubleday's most active month to dispose stocks was the month of February. 2014 saw Richard Doubleday paying a total of $738,750.00 for 160,000 shares, this is the most they've acquired in one year. In 2021 Richard Doubleday cashed out on 11,025 shares for a total of $4,035,812.28, their largest year based on trade value.

Holdings & Transactions

DXCMdexcom inc

EVP Chief Commercial Officer Officer

Updated: Mar 24, 2021VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-0.14	1.11K	$360.49	-$399.79K	Mar 24, 2021	28.21K	Sale	Scheduled	Mar 23	View
From 4	-0.13	1.11K	$404.00	-$448.44K	Feb 26, 2021	29.29K	Sale	Scheduled	Feb 24	View
From 4	-0.11	1.11K	$368.84	-$409.41K	Jan 25, 2021	30.40K	Sale	Scheduled	Jan 22	View
From 4	-0.36	11.97K	$366.06	-$4.04M	Jan 06, 2021	31.51K	Sale	—	Dec 29 - 04	View
From 4	-0.10	1.11K	$359.92	-$399.52K	Dec 28, 2020	43.48K	Sale	Scheduled	Dec 23	View
From 4	-0.09	1.11K	$318.99	-$354.08K	Nov 25, 2020	44.59K	Sale	Scheduled	Nov 23	View
From 4	-0.02	1.11K	$403.10	-$447.44K	Oct 27, 2020	45.70K	Sale	Scheduled	Oct 14 - 23	View
From 4	-1.00	1.53K	$380.95	-$582.86K	Sep 28, 2020	46.81K	Sale	Scheduled	Sep 24	View
From 4	-0.09	4.70K	$398.30	-$1.87M	Sep 11, 2020	48.34K	Sale	—	Sep 09	View
From 4	-0.50	1.53K	$427.22	-$653.64K	Aug 26, 2020	53.01K	Sale	Scheduled	Aug 24	View
From 4	-0.33	1.53K	$427.29	-$654.19K	Jul 27, 2020	54.54K	Sale	Scheduled	Jul 23	View
From 4	-0.25	1.53K	$409.41	-$626.81K	Jun 25, 2020	56.07K	Sale	Scheduled	Jun 23	View
From 4	-0.20	1.53K	$396.74	-$607.41K	May 27, 2020	57.60K	Sale	Scheduled	May 22	View
From 4	-0.17	1.53K	$318.57	-$487.41K	Apr 27, 2020	59.14K	Sale	Scheduled	Apr 23	View
From 4	-0.03	2.05K	$209.27	-$320.40K	Mar 25, 2020	60.67K	Sale	Scheduled	Mar 13 - 23	View
From 4	-0.14	8.30K	$264.74	-$2.20M	Mar 13, 2020	62.72K	Sale	—	Mar 11	View
From 4	0.24	11.75K	—	$11.75	Mar 10, 2020	71.02K	Grant	—	Mar 08	View
From 4	-0.13	1.53K	$277.75	-$425.51K	Feb 26, 2020	59.16K	Sale	Scheduled	Feb 24	View
From 4	-0.11	1.53K	$234.34	-$359.00K	Jan 27, 2020	60.69K	Sale	Scheduled	Jan 23	View
From 4	-0.10	1.53K	$213.02	-$326.56K	Dec 23, 2019	62.22K	Sale	Scheduled	Dec 23	View
From 4	-0.09	1.53K	$217.56	-$333.52K	Nov 25, 2019	63.76K	Sale	Scheduled	Nov 22	View
From 4	-0.02	1.53K	$152.34	-$233.53K	Oct 25, 2019	65.29K	Sale	Scheduled	Oct 07 - 23	View
From 4	-1.00	2.02K	$155.00	-$312.48K	Sep 26, 2019	66.82K	Sale	Scheduled	Sep 24	View
From 4	-0.08	5.84K	$149.85	-$875.59K	Sep 11, 2019	68.84K	Sale	—	Sep 09	View
From 4	-0.50	2.02K	$175.14	-$353.09K	Aug 26, 2019	74.59K	Sale	Scheduled	Aug 23	View
From 4	-0.33	2.02K	$153.56	-$309.57K	Jul 24, 2019	76.60K	Sale	Scheduled	Jul 23	View
From 4	-0.25	2.02K	$149.62	-$301.63K	Jun 25, 2019	78.62K	Sale	Scheduled	Jun 24	View
From 4	-0.20	2.02K	$117.29	-$236.45K	May 24, 2019	80.63K	Sale	Scheduled	May 23	View
From 4	-0.17	2.02K	$116.98	-$235.84K	Apr 24, 2019	82.65K	Sale	Scheduled	Apr 23	View
From 4	-0.14	2.02K	$127.38	-$256.79K	Mar 27, 2019	84.67K	Sale	Scheduled	Mar 25	View
From 4	-0.13	10.81K	$142.79	-$1.54M	Mar 13, 2019	86.68K	Sale	—	Mar 12	View
From 4	0.24	16.36K	—	$16.37	Mar 11, 2019	97.49K	Grant	—	Mar 08	View
From 4	-0.10	1.51K	$109.34	-$165.10K	Dec 26, 2018	80.92K	Sale	Scheduled	Dec 21	View
From 4	-0.10	1.74K	$121.35	-$210.66K	Nov 27, 2018	82.43K	Sale	Scheduled	Nov 23	View
From 4	-0.09	1.74K	$128.72	-$223.47K	Oct 25, 2018	84.16K	Sale	Scheduled	Oct 23	View
From 4	-0.08	1.74K	$141.20	-$245.13K	Sep 26, 2018	85.90K	Sale	Scheduled	Sep 24	View
From 4	-0.06	5.48K	$143.76	-$788.21K	Sep 12, 2018	87.63K	Sale	—	Aug 31 - 10	View
From 4	-1.00	2.58K	$140.03	-$361.83K	Aug 27, 2018	92.91K	Sale	Scheduled	Aug 23	View
From 4	-0.71	2.58K	$102.48	-$264.51K	Jul 25, 2018	95.50K	Sale	Scheduled	Jul 23	View
From 4	-0.41	2.58K	$98.58	-$254.43K	Jun 26, 2018	98.08K	Sale	Scheduled	Jun 25	View
From 4	-0.29	2.58K	$86.00	-$221.96K	May 25, 2018	100.66K	Sale	Scheduled	May 23	View
From 4	-0.23	2.58K	$73.09	-$188.65K	Apr 25, 2018	103.24K	Sale	Scheduled	Apr 23	View
From 4	-0.18	2.58K	$68.44	-$176.64K	Mar 27, 2018	105.82K	Sale	Scheduled	Mar 23	View
From 4	-0.09	9.31K	$60.73	-$565.28K	Mar 14, 2018	108.40K	Disposition	—	Mar 12	View
From 4	0.59	38.50K	—	$38.50	Mar 12, 2018	117.71K	Grant	—	Mar 08	View
From 4	-0.10	1.64K	$56.32	-$92.25K	Feb 27, 2018	79.02K	Sale	Scheduled	Feb 23	View
From 4	-0.09	1.64K	$54.67	-$89.38K	Jan 25, 2018	80.66K	Sale	Scheduled	Jan 23	View
From 4	-0.09	1.64K	$56.39	-$92.20K	Dec 28, 2017	82.29K	Sale	—	Dec 26	View
From 4	-0.08	1.64K	$55.53	-$90.79K	Nov 27, 2017	83.93K	Sale	—	Nov 24	View
From 4	-0.07	1.64K	$44.82	-$73.27K	Oct 25, 2017	85.56K	Sale	Scheduled	Oct 23	View
From 4	-0.07	1.64K	$69.77	-$114.08K	Sep 27, 2017	87.20K	Sale	Scheduled	Sep 25	View
From 4	-0.10	7.53K	$71.81	-$540.83K	Sep 13, 2017	88.83K	Disposition	—	Sep 11	View
From 4	-0.06	1.64K	$75.26	-$123.05K	Aug 24, 2017	96.18K	Sale	Scheduled	Aug 23	View
From 4	-0.11	3.19K	$78.22	-$249.27K	Jun 27, 2017	97.82K	Sale	Scheduled	Jun 23	View
From 4	-0.10	3.18K	$68.29	-$217.29K	May 25, 2017	101.00K	Sale	Scheduled	May 23	View
From 4	-0.33	3.18K	$75.78	-$241.13K	Apr 26, 2017	104.18K	Sale	Scheduled	Apr 24	View
From 4	-0.25	3.18K	$76.38	-$243.03K	Mar 24, 2017	107.37K	Sale	Scheduled	Mar 23	View
From 4	0.17	14.08K	$77.55	-$1.04M	Mar 10, 2017	110.55K	Acquisition	—	Mar 08 - 10	View
From 4	-0.20	3.18K	$78.42	-$249.53K	Feb 24, 2017	96.32K	Sale	Scheduled	Feb 23	View
From 4	-0.17	3.18K	$79.50	-$252.98K	Jan 25, 2017	99.50K	Sale	Scheduled	Jan 23	View
From 4	-0.14	3.18K	$62.17	-$197.83K	Dec 28, 2016	102.68K	Sale	Scheduled	Dec 23	View
From 4	-0.12	3.18K	$70.19	-$223.35K	Nov 28, 2016	105.86K	Sale	Scheduled	Nov 23	View
From 4	-0.11	3.18K	$81.12	-$258.11K	Oct 26, 2016	109.04K	Sale	Scheduled	Oct 24	View
From 4	-0.10	3.18K	$93.97	-$299.00K	Sep 27, 2016	112.23K	Sale	Scheduled	Sep 23	View
From 4	-0.09	8.67K	$93.72	-$812.39K	Sep 13, 2016	115.41K	Disposition	—	Sep 09	View
From 4	-0.09	3.18K	$90.89	-$289.22K	Aug 25, 2016	124.08K	Sale	Scheduled	Aug 23	View
From 4	-0.08	3.18K	$87.31	-$277.82K	Jul 26, 2016	127.26K	Sale	Scheduled	Jul 25	View
From 4	-0.03	2.65K	$63.51	-$168.30K	Jun 03, 2016	130.44K	Disposition	—	Jun 01	View
From 4	-0.04	1.67K	$63.59	-$106.45K	May 24, 2016	133.09K	Sale	Scheduled	May 23	View
From 4	-0.04	1.67K	$69.15	-$115.21K	Apr 26, 2016	134.76K	Sale	Scheduled	Apr 25	View
From 4	-0.11	1.67K	$61.76	-$102.89K	Mar 25, 2016	136.43K	Sale	Scheduled	Mar 23	View
From 4	-0.03	4.43K	$63.96	-$283.35K	Mar 15, 2016	138.10K	Disposition	—	Mar 14	View
From 4	-0.08	11.40K	$63.18	-$720.50K	Mar 14, 2016	142.53K	Disposition	—	Mar 10	View
From 4	0.38	38.00K	—	$38.00	Mar 10, 2016	153.93K	Grant	—	Mar 08	View
From 4	-0.10	1.67K	$64.36	-$107.22K	Feb 25, 2016	115.56K	Sale	Scheduled	Feb 23	View
From 4	-0.09	1.67K	$73.34	-$122.18K	Jan 27, 2016	117.22K	Sale	Scheduled	Jan 25	View
From 4	-0.08	1.67K	$82.22	-$136.98K	Dec 28, 2015	118.89K	Sale	Scheduled	Dec 23	View
From 4	-0.08	1.67K	$85.85	-$143.02K	Nov 24, 2015	120.55K	Sale	Scheduled	Nov 23	View
From 4	-0.03	3.00K	$64.59	-$480.20K	Nov 12, 2015	122.22K	Sale	—	Nov 09	View
From 4	-0.07	1.67K	$79.27	-$132.06K	Oct 27, 2015	122.22K	Sale	Scheduled	Oct 23	View
From 4	-0.15	4.22K	$97.00	-$409.06K	Sep 25, 2015	123.89K	Sale	Scheduled	Sep 23	View
From 4	-0.04	4.42K	$95.93	-$423.64K	Sep 15, 2015	128.10K	Disposition	—	Sep 14	View
From 4	-0.04	4.40K	$90.90	-$400.32K	Sep 11, 2015	132.52K	Disposition	—	Sep 09	View
From 4	-0.06	1.67K	$80.96	-$134.87K	Aug 26, 2015	136.92K	Sale	Scheduled	Aug 24	View
From 4	-0.25	9.64K	$85.37	-$823.01K	Jul 27, 2015	138.30K	Sale	Scheduled	Jul 23	View
From 4	-0.02	2.62K	$71.61	-$187.83K	Jun 03, 2015	147.95K	Disposition	—	Jun 01	View
From 4	-0.02	3.26K	$70.73	-$230.43K	May 28, 2015	150.57K	Sale	—	May 27	View
From 4	-0.03	4.00K	$47.45	-$465.86K	Mar 25, 2015	155.83K	Sale	Scheduled	Mar 23	View
From 4	-0.18	34.20K	$46.76	-$3.01M	Mar 13, 2015	154.83K	Sale	—	Mar 11 - 12	View
From 4	0.39	47.50K	—	$47.50	Mar 10, 2015	168.02K	Grant	—	Mar 08	View
From 4	-0.03	4.00K	$49.20	-$484.55K	Feb 25, 2015	126.52K	Sale	Scheduled	Feb 23	View
From 4	-0.03	4.00K	$45.18	-$441.61K	Jan 27, 2015	129.95K	Sale	Scheduled	Jan 23	View
From 4	-0.03	4.00K	$42.53	-$413.44K	Dec 24, 2014	133.95K	Sale	Scheduled	Dec 23	View
From 4	-0.03	4.00K	$39.28	-$378.77K	Nov 26, 2014	137.95K	Sale	Scheduled	Nov 24	View
From 4	-0.03	4.00K	$39.28	-$378.77K	Nov 26, 2014	137.95K	Sale	Scheduled	Nov 24	View
From 4	-0.03	4.00K	$34.20	-$324.50K	Oct 24, 2014	141.95K	Sale	Scheduled	Oct 23	View
From 4	-0.03	4.00K	$31.75	-$298.40K	Sep 24, 2014	145.95K	Sale	Scheduled	Sep 23	View
From 4	-0.04	4.40K	$43.36	-$190.97K	Sep 15, 2014	119.95K	Disposition	—	Sep 12	View
From 4	-0.02	2.23K	$43.23	-$96.32K	Sep 12, 2014	124.35K	Disposition	—	Sep 10	View
From 4	-0.02	4.00K	$34.77	-$330.69K	Aug 27, 2014	156.58K	Sale	Scheduled	Aug 25	View
From 4	-0.12	20.00K	$36.21	-$1.60M	Aug 20, 2014	145.07K	Sale	—	Aug 19	View
From 4	-0.02	4.00K	$30.13	-$281.19K	Jul 24, 2014	160.14K	Sale	Scheduled	Jul 23	View
From 4	-0.03	4.00K	$32.25	-$303.73K	Jun 25, 2014	126.39K	Sale	Scheduled	Jun 23	View
From 4	-0.03	4.00K	$28.20	-$260.59K	Jun 06, 2014	130.39K	Sale	Scheduled	Jun 05	View
From 4	-0.02	2.64K	$33.64	-$88.71K	Jun 04, 2014	126.14K	Disposition	—	Jun 02	View
From 4	-0.13	18.75K	$32.89	-$616.61K	May 28, 2014	128.77K	Sale	—	May 23	View
From 4	-0.03	4.00K	$28.45	-$263.26K	Apr 25, 2014	155.77K	Sale	Scheduled	Apr 23	View
From 4	-0.26	55.92K	$36.30	-$4.61M	Mar 13, 2014	158.77K	Sale	—	Mar 11	View
From 4	0.45	47.31K	$46.10	-$124.15K	Mar 11, 2014	152.44K	Acquisition	—	Mar 08 - 11	View
From 4	-0.02	2.66K	$26.89	-$71.61K	Sep 10, 2013	105.14K	Disposition	—	Sep 09	View
From 4	0.16	15.00K	—	$15.00	Jun 04, 2013	106.97K	Grant	—	May 31	View
From 4	-0.01	1.27K	$19.56	-$24.88K	May 13, 2013	91.97K	Sale	—	May 09	View
From 4	0.78	40.83K	$15.66	-$143.46K	Mar 13, 2013	93.25K	Acquisition	—	Mar 11 - 13	View
From 4	-0.02	1.30K	$13.68	-$17.81K	Sep 12, 2012	51.43K	Disposition	—	Sep 10	View
From 4	0.78	22.85K	$10.26	-$28.46K	Mar 13, 2012	52.04K	Acquisition	—	Mar 08	View
From 4	12.50	25.63K	—	$25.63	Mar 10, 2011	27.68K	Grant	—	Mar 08	View
From 4	—	41.00K	—	—	Mar 16, 2010	41.00K	Grant	—	Mar 12	View
From 4	—	100.00K	—	—	Jun 24, 2009	100.00K	Grant	—	Jun 22	View
From 3	—	—	—	—	Jun 24, 2009	—	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions