Jacob Steven Leach is President, CEO, and Director at DEXCOM INC (DXCM). SEC records also connect Leach to SenesTech, Inc. (SNES). Leach has reported 8 insider filings with the SEC since 2024. The most recent filing was in August 2026.
Every role Jacob Steven Leach has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
DEXCOM INC (DXCM)1 filingLatest filing:
Jacob Steven Leach is President, CEO, and Director, Director of DEXCOM INC (DXCM). 8 SEC Form 4 filings on record going back to 2024, most recently on 25 August 2026. Most recent open-market trade: sold $168 of SNES on 19 November 2025. Lifetime open-market purchases: $1.00M. Lifetime open-market sales: $57K.
Every recent SEC Form 4 transaction Jacob Steven Leach has reported, most recent first.
InsiderAlpha's records for Jacob Steven Leach go back to 2024: 8 primary Form 4 filings, an average of 2.7 per year. The typical open-market purchase is $501K (2 buys totaling $1.00M). The largest single buy on record is $863K of DXCM in 2025. Sales side: 2 recorded sales totaling $57K, so the filing history runs buy-heavy by dollar value. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Jacob Steven Leach files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Jacob Steven Leach is a corporate insider, tracked as President, CEO, and Director, Director of DEXCOM INC (DXCM). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
1 primary Form 4 filing in the last 90 days, covering 1 company.
Recorded transactions: 2 open-market purchases ($1.00M) and 2 open-market sales ($57K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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$DXCM DEXCOM INC19.8K shares @ $68.10$1.35M