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908 Devices Inc.

MASS Net selling

CIK 0001555279 #3233 in the set updated 17 Sep 2026

Bought (1 mo)

$0.00

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

Sold (1 mo)

$1.18M

$649.88K on a plan · $0.00 straight out of an exercise

Sold at will

$529.80K

2 of 5 sales

Net

−$1.18M

−$529.80K against sales at will

By person

16 insiders · 5 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

AWM Investment Company, Inc. entity

10% owner

—

$529.80K (2)

−$529.80K

9,667,264

23.39%

$102.28M

−4.2%

Brown Christopher D.

Director

—

$317.40K (1) scheduled

−$317.40K

775,559

1.88%

$8.21M

−13.0%

Knopp Kevin J.

President and CEO

—

$207.00K (1) scheduled

−$207.00K

555,968

1.35%

$5.88M

+9.2%

Griffith Joseph H. IV

Chief Financial Officer

—

$125.48K (1) scheduled

−$125.48K

121,497

0.2939%

$1.29M

+30.0%

HRUSOVSKY E KEVIN

Director

—

165,390

0.4001%

$1.75M

+18.2%

Spoto Mark

Director

—

89,346

0.2162%

$945.28K

+68.7%

Kenneweg John

SVP, Sales & Product Marketing

—

57,784

0.1398%

$611.35K

0.0%

McCallion Kevin J.

SVP, Products and Production

—

44,925

0.1087%

$475.31K

0.0%

Hunt Anthony

Director

—

44,168

0.1069%

$467.30K

+165.1%

ELOI FENEL M

Director

—

40,897

0.0989%

$432.69K

+164.7%

CRANDELL KEITH

Director

—

39,374

0.0953%

$416.58K

+182.7%

Leonhart Michele M.

Director

—

27,054

0.0655%

$286.23K

—

George Jeffrey P.

Director

—

26,814

0.0649%

$283.69K

+73.6%

Eisenberg Marcia

Director

—

25,957

0.0628%

$274.63K

+77.9%

Vann Brandi C

Director

—

5,192

0.0126%

$54.93K

—

Turner Michael S.

Chief Legal & Admin Officer

—

0.0000%

$0.00

−100.0%

Individual transactions

Insider

Date

Role

Action

Price

Amount

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

Knopp Kevin J.

17 Aug 2026

President and CEO

Sold on a plan

20,000

$10.35

$207.00K

Show all 5 transactions →

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 3

Sales straight out of an exercise 0

Sales at will 2

Transactions with no price 0

Shares from compensation/vesting 0

History held since 21 Dec 2020