Transaction · 0001093557-26-000151

Sayer Kevin R

SAYER KEVIN R, CHAIR, reported an open-market or private sale at DEXCOM INC involving 19308.000000 shares for an estimated $1732043.45. Reported holdings after the transaction were 309662.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCHAIR
DXCMDEXCOM INC
Trade date
Aug 20, 2026
Filing date
Aug 24, 2026
View on SEC Insider profile
Disclosed value-$1.73MShares × reported price
Shares traded19.3k$89.71 per share
Holdings after309kDirect
% of reported position traded5.87%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 328,970 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

DXCM price since this filing

Daily closing prices, with the filing date and available return windows
DXCM · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -17.9%1w ago +0.5%1d ago -1.3%
Returns since7d +0.0%30d -3.7%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001093557-26-000151
Common Stock
Transaction date
Aug 20, 2026
Filed Aug 24, 2026, 08:01 PM · 4d delay
Shares
19,308 sh
$89.71 per share
Estimated value
-$1.73M
Computed from shares × price
Holdings after
309,662 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Large Sale 10b5-1 Detected
Filing-only score

-4 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Executive Chair

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    On February 18, 2026, Mr. Sayer adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sayer. The shares set forth above were sold pursuant to the 10b5- 1 Plan.

  2. F2

    This transaction was executed in multiple trades at prices ranging from $89.275 to $90.25. The price above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide u…

  3. F3

    Included in this number are 106,972 unvested restricted stock units, 32,749 of which were granted on March 8, 2026 and shall vest through March 8, 2027, 56,993 of which were granted on March 8, 2025 a…

  4. F4

    This transaction was executed in multiple trades at prices ranging from $90.32 to $91.19. The price above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide up…

Original filing · 0001093557-26-000151
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