Insider Trading & Ownership of Albert Frederick Osterloh IV

Location: Burlingame, CA
Summary: The estimated net worth of Albert Frederick Osterloh IV is at least $514,464 dollars as of 26 Feb 2026. Albert Frederick Osterloh IV is the Director of DEXCOM INC and owns shares of DEXCOM INC (DXCM) stock worth about $514.5K.
Signature: /s/ Jereme M. Sylvain, as Attorney-in-Fact for Albert Frederick Osterloh IV
All Insider Reports: All Insider Reports

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Key facts

Albert Frederick Osterloh IV has 1 issuer position tracked on this page.
Estimated disclosed ownership value: $514,464.
Recent insider filing activity is available below.

Change

Largest disclosed position: DEXCOM INC ($514,464).
Past-year value change for that position: .

Research use

This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
You can cross-check role, issuer, and filing chronology directly against the SEC source.

Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Albert Frederick Osterloh IV

DXCM Forms 3/4/5

DEXCOM INC

Relationship: Director
Holdings value: $514,464
Past year net change
Change %
Report period: 26 Feb 2026

Insider Transactions Reported by Albert Frederick Osterloh IV:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.