Leach Jacob Steven

President, CEO, and Director at DEXCOM INC · on record since Mar 13, 2019
Director at DEXCOM INC · on record since May 27, 2026
Director at SenesTech, Inc. · on record since Nov 25, 2020

Insider trading activity of Leach Jacob Steven

Transactions on record: 118; since Mar 15, 2017

Open-market buys: 5; $1.2M

Open-market sells: 51; $53.6M

Companies traded: 2; last filing Aug 25, 2026

Figures computed from official regulatory filings — .

Companies where Leach Jacob Steven has traded

DEXCOM INC106 tx · $62.5M · Aug 25, 2026
SenesTech, Inc.12 tx · $261.2K · Jun 17, 2026

Track record of Leach Jacob Steven

Statistical track record

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Open-market buys: 5

Last buy: Nov 10, 2025

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Transaction history of Leach Jacob Steven

Co-insiders of Leach Jacob Steven

Abbey DonaldDEXCOM INC
ACE HEATHER SDEXCOM INC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
DEXCOM INCListing on record	Aug 25, 2026	Other	-1,451	92.34 USD	$134K		SEC
SenesTech, Inc.Listing on record	Jun 17, 2026	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	May 27, 2026	Other	-1,451	71.90 USD	$104.3K		SEC
DEXCOM INCListing on record	Mar 10, 2026	Other	-19,757	68.10 USD	$1.3M	Unusual size	SEC
DEXCOM INCListing on record	Mar 10, 2026	Award	104,516	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Feb 2, 2026	Award	8,310	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Feb 2, 2026	Other	-3,058	73.36 USD	$224.3K		SEC
SenesTech, Inc.Listing on record	Nov 19, 2025	Sell	-62	2.71 USD	$168		SEC
DEXCOM INCListing on record	Nov 10, 2025	Buy	15,700	54.98 USD	$863.2K	conv 67Unusual sizeFirst in 12mo	SEC
DEXCOM INCListing on record	Nov 10, 2025	Buy	2,500	55.43 USD	$138.6K	conv 65Unusual sizeFirst in 12mo	SEC
DEXCOM INCListing on record	Mar 14, 2025	Sell	-14,076	70.38 USD	$990.7K		SEC
DEXCOM INCListing on record	Mar 11, 2025	Award	22,798	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 11, 2025	Award	35,906	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 30, 2025	Award	7,107	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 30, 2025	Sell	-2,634	86.91 USD	$228.9K		SEC
DEXCOM INCListing on record	Dec 17, 2024	Sell	-744	76.87 USD	$57.2K		SEC
DEXCOM INCListing on record	Sep 11, 2024	Sell	-746	69.15 USD	$51.6K		SEC
SenesTech, Inc.Listing on record	Aug 28, 2024	AwardD (derivative)	23,894	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jun 11, 2024	Sell	-745	115.05 USD	$85.7K		SEC
SenesTech, Inc.Listing on record	Apr 9, 2024	AwardD (derivative)	4,469	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 14, 2024	Gift	-7,736	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 14, 2024	Sell	-14,639	134.41 USD	$2M		SEC
DEXCOM INCListing on record	Mar 11, 2024	Award	26,053	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 17, 2024	Award	9,697	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 17, 2024	Sell	-3,978	123.63 USD	$491.8K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
DEXCOM INCListing on record	Aug 25, 2026	Other	-1,451	92.34 USD	$134K		SEC
SenesTech, Inc.Listing on record	Jun 17, 2026	AwardD (derivative)	100,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	May 27, 2026	Other	-1,451	71.90 USD	$104.3K		SEC
DEXCOM INCListing on record	Mar 10, 2026	Other	-19,757	68.10 USD	$1.3M	Unusual size	SEC
DEXCOM INCListing on record	Mar 10, 2026	Award	104,516	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Feb 2, 2026	Award	8,310	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Feb 2, 2026	Other	-3,058	73.36 USD	$224.3K		SEC
SenesTech, Inc.Listing on record	Nov 19, 2025	Sell	-62	2.71 USD	$168		SEC
DEXCOM INCListing on record	Nov 10, 2025	Buy	15,700	54.98 USD	$863.2K	conv 67Unusual sizeFirst in 12mo	SEC
DEXCOM INCListing on record	Nov 10, 2025	Buy	2,500	55.43 USD	$138.6K	conv 65Unusual sizeFirst in 12mo	SEC
DEXCOM INCListing on record	Mar 14, 2025	Sell	-14,076	70.38 USD	$990.7K		SEC
DEXCOM INCListing on record	Mar 11, 2025	Award	22,798	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 11, 2025	Award	35,906	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 30, 2025	Award	7,107	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 30, 2025	Sell	-2,634	86.91 USD	$228.9K		SEC
DEXCOM INCListing on record	Dec 17, 2024	Sell	-744	76.87 USD	$57.2K		SEC
DEXCOM INCListing on record	Sep 11, 2024	Sell	-746	69.15 USD	$51.6K		SEC
SenesTech, Inc.Listing on record	Aug 28, 2024	AwardD (derivative)	23,894	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jun 11, 2024	Sell	-745	115.05 USD	$85.7K		SEC
SenesTech, Inc.Listing on record	Apr 9, 2024	AwardD (derivative)	4,469	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 14, 2024	Gift	-7,736	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Mar 14, 2024	Sell	-14,639	134.41 USD	$2M		SEC
DEXCOM INCListing on record	Mar 11, 2024	Award	26,053	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 17, 2024	Award	9,697	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
DEXCOM INCListing on record	Jan 17, 2024	Sell	-3,978	123.63 USD	$491.8K		SEC