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908 Devices Inc.

MASS Scheduled selling only

CIK 0001555279 #3233 in the set updated 21 Sep 2026

Bought (1 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (1 mo)

$722.95K

$442.88K on a plan · $280.07K straight out of an exercise

Sold at will

$0.00

0 of 5 sales

Net

−$722.95K

$0.00 against sales at will

By person

16 insiders · 5 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Brown Christopher D.

Director

—

$317.40K (1) scheduled

−$317.40K

775,559

1.88%

$7.93M

−13.0%

Kenneweg John

SVP, Sales & Product Marketing

—

$280.07K (3) scheduled

−$280.07K

57,784

0.1398%

$590.55K

0.0%

Griffith Joseph H. IV

Chief Financial Officer

—

$125.48K (1) scheduled

−$125.48K

121,497

0.2939%

$1.24M

+30.0%

AWM Investment Company, Inc. entity

10% owner

—

9,667,264

23.39%

$98.80M

−4.2%

Knopp Kevin J.

President and CEO

—

555,968

1.35%

$5.68M

+9.2%

HRUSOVSKY E KEVIN

Director

—

165,390

0.4001%

$1.69M

+18.2%

Spoto Mark

Director

—

89,346

0.2162%

$913.12K

+68.7%

McCallion Kevin J.

SVP, Products and Production

—

44,925

0.1087%

$459.13K

0.0%

Hunt Anthony

Director

—

44,168

0.1069%

$451.40K

+165.1%

ELOI FENEL M

Director

—

40,897

0.0989%

$417.97K

+164.7%

CRANDELL KEITH

Director

—

39,374

0.0953%

$402.40K

+182.7%

Leonhart Michele M.

Director

—

27,054

0.0655%

$276.49K

—

George Jeffrey P.

Director

—

26,814

0.0649%

$274.04K

+73.6%

Eisenberg Marcia

Director

—

25,957

0.0628%

$265.28K

+77.9%

Vann Brandi C

Director

—

5,192

0.0126%

$53.06K

—

Turner Michael S.

Chief Legal & Admin Officer

—

0.0000%

$0.00

−100.0%

Individual transactions

Insider

Date

Role

Action

Price

Amount

Kenneweg John

17 Sep 2026

SVP, Sales & Product Marketing

Sold after exercise

5,257

$10.22

$53.73K

Kenneweg John

16 Sep 2026

SVP, Sales & Product Marketing

Sold after exercise

21,399

$10.11

$216.34K

Kenneweg John

15 Sep 2026

SVP, Sales & Product Marketing

Sold after exercise

1,000

$10.00

$10.00K

Brown Christopher D.

2 Sep 2026

Director

Sold on a plan

30,000

$10.58

$317.40K

Griffith Joseph H. IV

25 Aug 2026

Chief Financial Officer

Sold on a plan

11,459

$10.95

$125.48K

What was left out

Form 4 filings counted 4

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 2

Sales straight out of an exercise 3

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 27,656

History held since 21 Dec 2020