Activity — Dexcom Inc

56 moves.

Top impact Insider · CEO moves Insider · biggest buys Insider · biggest sells Institution · biggest moves Institution · new positions

Date	Actor	Action	Security	Value	Shares Δ	Position after	Impact
May 28, 2026	Altman Steven R Director	Grant	Common Stock	$0	+6K	5,565 <0.01% of shares	low
May 28, 2026	Malady Kyle Director	Grant	Common Stock	$0	+6K +24.60%	28,242 <0.01% of shares	low
May 28, 2026	Augustinos Nicholas Director	Grant	Common Stock	$0	+6K	5,575 <0.01% of shares	low
May 28, 2026	Foletta Mark G Director	Grant	Common Stock	$0	+6K	6,331 <0.01% of shares	low
May 28, 2026	Heller Bridgette P Director	Grant	Common Stock	$0	+6K +22.29%	30,582 <0.01% of shares	low
May 28, 2026	Osterloh Albert Frederick IV Director	Grant	Common Stock	$0	+2K +23.08%	8,691 <0.01% of shares	low
May 28, 2026	Driscoll Rimma Director	Grant	Common Stock	$0	+6K +47.85%	17,319 <0.01% of shares	low
May 28, 2026	Ashley Euan A. Director	Grant	Common Stock	$0	+6K +77.66%	12,731 <0.01% of shares	low
May 28, 2026	Collins Richard Alexander Director	Grant	Common Stock	$0	+6K	5,605 <0.01% of shares	low
May 28, 2026	Gala Renee D Director	Grant	Common Stock	$0	+6K +81.46%	12,486 <0.01% of shares	low
May 8, 2026	Augustinos Nicholas Director	Gift	Common Stock	$0	+5K +15.10%	38,457 0.01% of shares	low
May 8, 2026	Augustinos Nicholas Director	Gift	Common Stock	$0	-5K -100.00%	0 0.00% of shares	low
May 8, 2026	Collins Richard Alexander Director	Gift	Common Stock	$0	+5K +14.46%	40,162 0.01% of shares	low
May 8, 2026	Collins Richard Alexander Director	Gift	Common Stock	$0	-5K -100.00%	0 0.00% of shares	low
May 8, 2026	Foletta Mark G Director	Gift	Common Stock	$0	+6K +11.21%	56,852 0.02% of shares	low
May 8, 2026	Foletta Mark G Director	Gift	Common Stock	$0	-6K -100.00%	0 0.00% of shares	low
May 8, 2026	Altman Steven R Director	Gift	Common Stock	$0	+5K +8.59%	63,667 0.02% of shares	low
May 8, 2026	Altman Steven R Director	Gift	Common Stock	$0	-5K -100.00%	0 0.00% of shares	low
Mar 8, 2026	Stern Sadie Executive	Grant	Common Stock	$0	+39K +35.57%	148,709 0.04% of shares	low
Jan 29, 2026	Stern Sadie Executive	Grant	Common Stock	$0	+7K +6.77%	112,346 0.03% of shares	low
Mar 8, 2026	Leach Jacob Steven CEO	Grant	Common Stock	$0	+105K +31.01%	441,567 0.12% of shares	low
Jan 29, 2026	Leach Jacob Steven CEO	Grant	Common Stock	$0	+8K +2.50%	340,109 0.09% of shares	low
Mar 8, 2026	Sylvain Jereme M Executive	Grant	Common Stock	$0	+49K +39.50%	172,242 0.05% of shares	low
Jan 29, 2026	Sylvain Jereme M Executive	Grant	Common Stock	$0	+7K +6.00%	125,859 0.03% of shares	low
Mar 8, 2026	Coleman Jon Executive	Grant	Common Stock	$0	+44K +63.86%	112,635 0.03% of shares	low
Mar 8, 2026	Sayer Kevin R Executive	Grant	Common Stock	$0	+33K +8.01%	441,739 0.12% of shares	low
Jan 29, 2026	Sayer Kevin R Executive	Grant	Common Stock	$0	+71K +19.14%	443,247 0.12% of shares	low
Mar 8, 2026	Brown Michael Jon Executive	Grant	Common Stock	$0	+39K +39.45%	137,929 0.04% of shares	low
Feb 26, 2026	Osterloh Albert Frederick IV Director	Grant	Common Stock	$0	+7K	7,061 <0.01% of shares	low
Jan 29, 2026	Brown Michael Jon Executive	Grant	Common Stock	$0	+7K +7.56%	101,308 0.03% of shares	low
Jun 15, 2026	Foletta Mark G Director	Sell	Common Stock	$14.9K	-199 -0.38%	52,852 0.01% of shares	low
May 12, 2026	Heller Bridgette P Director	Sell	Common Stock	$60.7K	-1K -3.89%	25,007 <0.01% of shares	low
Feb 12, 2026	Heller Bridgette P Director	Sell	Common Stock	$68.8K	-1K -3.74%	26,019 <0.01% of shares	low
May 15, 2026	Brown Michael Jon Executive	Sell	Common Stock	$101.8K	-2K -1.53%	109,504 0.03% of shares	medium
May 22, 2026	Leach Jacob Steven CEO	Other	Common Stock	$104.3K	-1K -0.34%	420,359 0.11% of shares	low
May 22, 2026	Brown Michael Jon Executive	Other	Common Stock	$104.3K	-1K -1.33%	108,053 0.03% of shares	low
May 22, 2026	Sylvain Jereme M Executive	Other	Common Stock	$104.3K	-1K -0.95%	151,841 0.04% of shares	low
May 22, 2026	Stern Sadie Executive	Other	Common Stock	$104.3K	-1K -1.10%	130,059 0.03% of shares	low
Apr 15, 2026	Brown Michael Jon Executive	Sell	Common Stock	$107.2K	-2K -1.51%	111,204 0.03% of shares	medium
Mar 16, 2026	Brown Michael Jon Executive	Sell	Common Stock	$110.2K	-2K -1.48%	112,904 0.03% of shares	medium
Jun 15, 2026	Brown Michael Jon Executive	Sell	Common Stock	$128.4K	-2K -1.57%	106,353 0.03% of shares	medium
Jan 29, 2026	Sylvain Jereme M Executive	Other	Common Stock	$194.6K	-3K -2.11%	123,207 0.03% of shares	low
Jan 29, 2026	Brown Michael Jon Executive	Other	Common Stock	$194.6K	-3K -2.62%	98,655 0.03% of shares	low
Jan 29, 2026	Stern Sadie Executive	Other	Common Stock	$194.8K	-3K -2.36%	109,690 0.03% of shares	low
Jan 29, 2026	Leach Jacob Steven CEO	Other	Common Stock	$224.3K	-3K -0.90%	337,051 0.09% of shares	low
Jun 15, 2026	Foletta Mark G Director	Sell	Common Stock	$281.7K	-4K -6.69%	53,051 0.01% of shares	medium
Jun 3, 2026	Coleman Jon Executive	Sell	Common Stock	$358.6K	-5K -4.67%	100,361 0.03% of shares	medium
Jun 4, 2026	Coleman Jon Executive	Sell	Common Stock	$364.1K	-5K -4.89%	95,450 0.03% of shares	medium
May 22, 2026	Coleman Jon Executive	Other	Common Stock	$529.3K	-7K -6.54%	105,273 0.03% of shares	low
Mar 8, 2026	Stern Sadie Executive	Other	Common Stock	$1.17M	-17K -11.57%	131,510 0.03% of shares	low