Jereme M Sylvain

Insider

First SEC filing: March 10, 2020 · Latest: March 10, 2020

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 Sept. 2, 2025

Insider transactions

0 buys (P) 1 sells (S) Net: $-357,796 + 25 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

25 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 22, 2026	DXCM	F	1,451	$71.90	$104,327	151,841 Direct	-0.95%	Disposed	24.4% (price as of 2026-08-21)
March 8, 2026	DXCM	F	18,950	$68.10	$1,290,495	153,292 Direct	-11.00%	Disposed	31.3% (price as of 2026-08-21)
March 8, 2026	DXCM	A	48,774	—	—	172,242 Direct	+39.50%	Acquired	(price as of 2026-08-21)
Jan. 29, 2026	DXCM	F	2,652	$73.36	$194,551	123,207 Direct	-2.11%	Disposed	21.9% (price as of 2026-08-21)
Jan. 29, 2026	DXCM	A	7,123	—	—	125,859 Direct	+6.00%	Acquired	(price as of 2026-08-21)
Sept. 2, 2025	DXCM	S 10b5-1	4,824	$74.17	$357,796	118,657 Direct	-3.91%	Disposed	20.6% (price as of 2026-08-21)
March 12, 2025	DXCM	S	12,001	$70.38	$844,630	123,481 Direct	-8.86%	Disposed	27.1% (price as of 2026-08-21)
March 10, 2025	DXCM	S	1,127	$74.70	$84,187	135,482 Direct	-0.82%	Disposed	19.7% (price as of 2026-08-21)
March 10, 2025	DXCM	S	3,203	$74.04	$237,150	136,609 Direct	-2.29%	Disposed	20.8% (price as of 2026-08-21)
March 10, 2025	DXCM	S	2,670	$73.22	$195,497	139,812 Direct	-1.87%	Disposed	22.2% (price as of 2026-08-21)
March 8, 2025	DXCM	A	22,798	—	—	142,482 Direct	+19.05%	Acquired	(price as of 2026-08-21)
March 8, 2025	DXCM	A	35,906	—	—	119,684 Direct	+42.86%	Acquired	(price as of 2026-08-21)
Jan. 29, 2025	DXCM	S	2,090	$86.91	$181,642	83,526 Direct	-2.44%	Disposed	2.9% (price as of 2026-08-21)
Jan. 28, 2025	DXCM	A	5,586	—	—	85,616 Direct	+6.98%	Acquired	(price as of 2026-08-21)
Dec. 16, 2024	DXCM	S	744	$76.87	$57,191	80,030 Direct	-0.92%	Disposed	16.4% (price as of 2026-08-21)
Nov. 15, 2024	DXCM	S 10b5-1	3,500	$75.51	$264,285	80,774 Direct	-4.15%	Disposed	18.4% (price as of 2026-08-21)
Sept. 9, 2024	DXCM	S	746	$69.15	$51,586	84,274 Direct	-0.88%	Disposed	29.3% (price as of 2026-08-21)
June 10, 2024	DXCM	S	745	$115.05	$85,712	84,948 Direct	-0.87%	Disposed	-22.3% (price as of 2026-08-21)
March 12, 2024	DXCM	S	11,661	$134.41	$1,567,355	85,534 Direct	-12.00%	Disposed	-33.5% (price as of 2026-08-21)
March 8, 2024	DXCM	A	26,053	—	—	97,195 Direct	+36.62%	Acquired	(price as of 2026-08-21)
Feb. 20, 2024	DXCM	S 10b5-1	3,363	$116.73	$392,563	71,142 Direct	-4.51%	Disposed	-23.4% (price as of 2026-08-21)
Jan. 16, 2024	DXCM	S	2,734	$123.63	$338,004	74,505 Direct	-3.54%	Disposed	-27.7% (price as of 2026-08-21)
Jan. 12, 2024	DXCM	A	7,171	—	—	77,239 Direct	+10.23%	Acquired	(price as of 2026-08-21)
Dec. 18, 2023	DXCM	D	2,932	$121.85	$357,264	70,068 Direct	-4.02%	Disposed	-26.6% (price as of 2026-08-21)
Aug. 22, 2023	DXCM	S 10b5-1	1,844	$104.38	$192,477	72,867 Direct	-2.47%	Disposed	-14.3% (price as of 2026-08-21)
May 22, 2023	DXCM	S 10b5-1	2,400	$117.58	$282,192	74,711 Direct	-3.11%	Disposed	-23.9% (price as of 2026-08-21)
March 10, 2023	DXCM	D	783	$111.40	$87,226	77,111 Direct	-1.01%	Disposed	-19.7% (price as of 2026-08-21)
March 10, 2023	DXCM	D	1,857	$111.40	$206,870	77,894 Direct	-2.33%	Disposed	-19.7% (price as of 2026-08-21)
March 10, 2023	DXCM	D	3,604	$111.40	$401,486	79,751 Direct	-4.32%	Disposed	-19.7% (price as of 2026-08-21)
March 10, 2023	DXCM	D	3,374	$111.40	$375,864	83,355 Direct	-3.89%	Disposed	-19.7% (price as of 2026-08-21)
March 8, 2023	DXCM	A	21,769	—	—	86,729 Direct	+33.51%	Acquired	(price as of 2026-08-21)
Feb. 22, 2023	DXCM	S 10b5-1	2,400	$114.54	$274,896	64,837 Direct	-3.57%	Disposed	-21.9% (price as of 2026-08-21)
Nov. 21, 2022	DXCM	S 10b5-1	2,400	$112.62	$270,288	67,237 Direct	-3.45%	Disposed	-20.6% (price as of 2026-08-21)
June 6, 2022	DXCM	S 10b5-1	600	$301.57	$180,942	17,408 Direct	-3.33%	Disposed	18.6% (price as of 2026-08-21)
March 9, 2022	DXCM	D	192	$406.06	$77,964	18,008 Direct	-1.05%	Disposed	-11.9% (price as of 2026-08-21)
March 9, 2022	DXCM	D	424	$406.06	$172,169	18,200 Direct	-2.28%	Disposed	-11.9% (price as of 2026-08-21)
March 9, 2022	DXCM	D	844	$406.06	$342,715	18,624 Direct	-4.34%	Disposed	-11.9% (price as of 2026-08-21)
March 9, 2022	DXCM	D	491	$406.06	$199,375	19,468 Direct	-2.46%	Disposed	-11.9% (price as of 2026-08-21)
March 8, 2022	DXCM	A	5,297	—	—	19,959 Direct	+36.13%	Acquired	(price as of 2026-08-21)
March 4, 2022	DXCM	S 10b5-1	600	$422.94	$253,764	14,662 Direct	-3.93%	Disposed	-15.4% (price as of 2026-08-21)
Dec. 15, 2021	DXCM	A	2,925	—	—	15,217 Direct	+23.80%	Acquired	(price as of 2026-08-21)
Dec. 6, 2021	DXCM	S 10b5-1	600	$517.59	$310,554	12,292 Direct	-4.65%	Disposed	-30.9% (price as of 2026-08-21)
Nov. 9, 2021	DXCM	A	634	$634.12	$402,032	12,892 Direct	-4.69%	Disposed	-43.6% (price as of 2026-08-21)
Sept. 9, 2021	DXCM	S	5	$541.76	$2,709	13,526 Direct	-0.04%	Disposed	-34.0% (price as of 2026-08-21)
Sept. 9, 2021	DXCM	S	402	$541.36	$217,627	13,531 Direct	-2.89%	Disposed	-33.9% (price as of 2026-08-21)
Sept. 7, 2021	DXCM	S 10b5-1	587	$545.41	$320,156	13,933 Direct	-4.04%	Disposed	-34.4% (price as of 2026-08-21)
May 24, 2021	DXCM	S 10b5-1	600	$346.74	$208,044	14,508 Direct	-3.97%	Disposed	3.2% (price as of 2026-08-21)
March 10, 2021	DXCM	S	941	$362.92	$341,508	15,108 Direct	-5.86%	Disposed	-1.4% (price as of 2026-08-21)
March 8, 2021	DXCM	A	5,301	—	—	16,049 Direct	+49.32%	Acquired	(price as of 2026-08-21)
Feb. 24, 2021	DXCM	S 10b5-1	600	$404.00	$242,400	10,700 Direct	-5.31%	Disposed	-11.4% (price as of 2026-08-21)
Nov. 24, 2020	DXCM	S 10b5-1	600	$320.37	$192,222	11,300 Direct	-5.04%	Disposed	11.7% (price as of 2026-08-21)
Nov. 10, 2020	DXCM	S	632	$336.22	$212,491	11,900 Direct	-5.04%	Disposed	6.4% (price as of 2026-08-21)
Sept. 9, 2020	DXCM	S	289	$398.30	$115,109	12,532 Direct	-2.25%	Disposed	-10.2% (price as of 2026-08-21)
Aug. 24, 2020	DXCM	S 10b5-1	600	$427.41	$256,446	12,817 Direct	-4.47%	Disposed	-16.3% (price as of 2026-08-21)
March 11, 2020	DXCM	S	589	$265.43	$156,338	13,417 Direct	-4.21%	Disposed	34.8% (price as of 2026-08-21)
March 11, 2020	DXCM	S	24	$250.16	$6,004	14,006 Direct	-0.17%	Disposed	43.0% (price as of 2026-08-21)
March 8, 2020	DXCM	A	5,483	—	—	14,030 Direct	+64.15%	Acquired	(price as of 2026-08-21)

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, 2020	DXCM	Common Stock	8,547	Direct