Matthew Vincent Dolan

CIK 1914994 · View on SEC EDGAR ↗

Insider

First SEC filing: March 10, 2022 · Latest: March 10, 2022

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Initial holdings The stakes this person held when they first started reporting.

Insider at

DXCM selling Jan. 29, 2025

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 12 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

12 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 29, 2025	DXCM	S	1,183	$86.91	$102,815	42,044 Direct	-2.74%	Disposed	4.8% (price as of 2026-08-20)
Jan. 28, 2025	DXCM	A	3,048	—	—	43,227 Direct	+7.59%	Acquired	(price as of 2026-08-20)
May 15, 2024	DXCM	S 10b5-1	2,423	$126.58	$306,703	40,075 Direct	-5.70%	Disposed	-28.1% (price as of 2026-08-20)
April 15, 2024	DXCM	S 10b5-1	1,990	$137.81	$274,242	42,377 Direct	-4.49%	Disposed	-33.9% (price as of 2026-08-20)
March 15, 2024	DXCM	S 10b5-1	1,003	$131.39	$131,784	44,367 Direct	-2.21%	Disposed	-30.7% (price as of 2026-08-20)
March 15, 2024	DXCM	S 10b5-1	1,314	$130.77	$171,832	45,370 Direct	-2.81%	Disposed	-30.4% (price as of 2026-08-20)
March 15, 2024	DXCM	S 10b5-1	1,886	$129.18	$243,633	46,684 Direct	-3.88%	Disposed	-29.5% (price as of 2026-08-20)
March 12, 2024	DXCM	S	6,710	$134.41	$901,891	48,570 Direct	-12.14%	Disposed	-32.3% (price as of 2026-08-20)
March 8, 2024	DXCM	A	21,711	—	—	55,280 Direct	+64.68%	Acquired	(price as of 2026-08-20)
Sept. 1, 2023	DXCM	S 10b5-1	56	$102.32	$5,730	33,569 Direct	-0.17%	Disposed	-11.0% (price as of 2026-08-20)
March 16, 2023	DXCM	S 10b5-1	2,303	$115.00	$264,845	33,569 Direct	-6.42%	Disposed	-20.8% (price as of 2026-08-20)
March 13, 2023	DXCM	S 10b5-1	6,229	$106.27	$661,956	35,872 Direct	-14.80%	Disposed	-14.3% (price as of 2026-08-20)
March 10, 2023	DXCM	D	787	$111.40	$87,672	42,101 Direct	-1.84%	Disposed	-18.3% (price as of 2026-08-20)
March 10, 2023	DXCM	D	2,397	$111.40	$267,026	42,888 Direct	-5.29%	Disposed	-18.3% (price as of 2026-08-20)
March 10, 2023	DXCM	D	1,650	$111.40	$183,810	45,285 Direct	-3.52%	Disposed	-18.3% (price as of 2026-08-20)
March 10, 2023	DXCM	D	1,370	$111.40	$152,618	46,935 Direct	-2.84%	Disposed	-18.3% (price as of 2026-08-20)
March 8, 2023	DXCM	A	21,769	—	—	48,305 Direct	+82.04%	Acquired	(price as of 2026-08-20)
March 6, 2023	DXCM	S 10b5-1	226	$114.40	$25,854	26,536 Direct	-0.84%	Disposed	-20.4% (price as of 2026-08-20)
Sept. 1, 2022	DXCM	S 10b5-1	5	$81.63	$408	26,536 Direct	-0.02%	Disposed	11.5% (price as of 2026-08-20)
March 17, 2022	DXCM	S 10b5-1	484	$450.00	$217,800	6,634 Direct	-6.80%	Disposed	-19.1% (price as of 2026-08-20)
March 16, 2022	DXCM	S 10b5-1	686	$425.00	$291,550	7,118 Direct	-8.79%	Disposed	-14.3% (price as of 2026-08-20)
March 15, 2022	DXCM	S 10b5-1	1,016	$412.41	$419,009	7,804 Direct	-11.52%	Disposed	-11.7% (price as of 2026-08-20)
March 9, 2022	DXCM	D	541	$406.06	$219,678	8,820 Direct	-5.78%	Disposed	-10.3% (price as of 2026-08-20)
March 9, 2022	DXCM	D	489	$406.06	$198,563	9,361 Direct	-4.96%	Disposed	-10.3% (price as of 2026-08-20)
March 9, 2022	DXCM	D	192	$406.06	$77,964	9,850 Direct	-1.91%	Disposed	-10.3% (price as of 2026-08-20)
March 9, 2022	DXCM	D	393	$406.06	$159,582	10,042 Direct	-3.77%	Disposed	-10.3% (price as of 2026-08-20)
March 8, 2022	DXCM	A	2,889	—	—	10,435 Direct	+38.29%	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
March 10, 2022	DXCM	Common Stock	7,546	Direct