Transaction · 0001836876-26-000009

Kenneweg John

Kenneweg John, SVP, SALES, PM, reported an open-market or private sale at 908 Devices Inc. involving 18255.000000 shares for an estimated $148048.05. Reported holdings after the transaction were 57784.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SSVP, SALES, PM
MASS908 Devices Inc.
Trade date
May 08, 2026
Filing date
May 11, 2026
View on SEC Insider profile
Disclosed value-$148kShares × reported price
Shares traded18.2k$8.11 per share
Holdings after57.7kDirect
% of reported position traded24.01%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 76,039 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.

MASS price since this filing

Daily closing prices, with the filing date and available return windows
MASS · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -8.8%1w ago +0.0%1d ago +0.0%
Returns since7d +0.0%30d +26.7%90d +30.4%180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001836876-26-000009
Common Stock
Transaction date
May 08, 2026
Filed May 11, 2026, 08:05 PM · 3d delay
Shares
18,255 sh
$8.11 per share
Estimated value
-$148k
Computed from shares × price
Holdings after
57,784 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Large Holdings Reduction Repeat Seller
Filing-only score

+6 points

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

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
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

SVP, Sales & Product Marketing

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.99 to $8.20 inclusive. The Reporting Person undertakes to provide…

Original filing · 0001836876-26-000009
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