MASS

908 Devices Inc.

Insider trading activity for 908 Devices Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$5.7M

net selling

Bought(0 · 0 insiders): $0
Sold(27 · 4 insiders): $5.7M

Past 6 months

-$7.1M

net selling

Bought(0 · 0 insiders): $0
Sold(41 · 6 insiders): $7.1M

Past 12 months

-$7.1M

net selling

Bought(0 · 0 insiders): $0
Sold(41 · 6 insiders): $7.1M

Transaction history

The 82 most recent Form 4 transactions.

Open in screener →

Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 12	Knopp Kevin J.	President and CEO	SSELL◷	2,747	$10.07	$27.7K	-0.5%	Open the original filing on SEC.gov
Aug 11	Knopp Kevin J.	President and CEO	SSELL◷	30,170	$10.16	$306.5K	-4.9%	Open the original filing on SEC.gov
Aug 11	Knopp Kevin J.	President and CEO	SSELL◷	115,748	$9.83	$1.1M	-15.8%	Open the original filing on SEC.gov
Aug 11	Brown Christopher D.	Director	SSELL◷	8,358	$9.23	$77.1K	-1.0%	Open the original filing on SEC.gov
Aug 10	Knopp Kevin J.	President and CEO	SSELL◷	348	$9.06	$3.2K	<0.1%	Open the original filing on SEC.gov
Aug 10	Brown Christopher D.	Director	SSELL◷	9,442	$9.03	$85.3K	-1.1%	Open the original filing on SEC.gov
Aug 5	Brown Christopher D.	Director	SSELL◷	20,000	$8.49	$169.8K	-2.4%	Open the original filing on SEC.gov
Aug 4	AWM Investment Company,…	10% Owner	SSELL	50,000	$8.36	$417.8K	-1.0%	Open the original filing on SEC.gov
Aug 1	Vann Brandi C	Director	MEXER◆	5,192	—	—	—	Open the original filing on SEC.gov
Aug 1	Vann Brandi C	Director	MEXER	5,192	—	—	—	Open the original filing on SEC.gov
Jul 2	Brown Christopher D.	Director	SSELL◷	2,200	$9.02	$19.8K	-0.3%	Open the original filing on SEC.gov
Jul 2	Knopp Kevin J.	President and CEO	SSELL◷	222	$9.07	$2K	<0.1%	Open the original filing on SEC.gov
Jun 30	Brown Christopher D.	Director	SSELL◷	20,000	$8.84	$176.8K	-2.3%	Open the original filing on SEC.gov
Jun 26	Knopp Kevin J.	President and CEO	SSELL◷	2,798	$9.09	$25.4K	-0.4%	Open the original filing on SEC.gov
Jun 25	Leonhart Michele M.	Director	MEXER◆	6,486	—	—	—	Open the original filing on SEC.gov
Jun 25	Leonhart Michele M.	Director	MEXER	6,486	—	—	+31.5%	Open the original filing on SEC.gov
Jun 25	Knopp Kevin J.	President and CEO	SSELL◷	16,388	$9.10	$149.1K	-2.2%	Open the original filing on SEC.gov
Jun 24	Knopp Kevin J.	President and CEO	SSELL◷	40,535	$9.14	$370.5K	-5.1%	Open the original filing on SEC.gov
Jun 23	AWM Investment Company,…	10% Owner	SSELL	3,050	$9.00	$27.5K	<0.1%	Open the original filing on SEC.gov
Jun 23	Brown Christopher D.	Director	SSELL◷	9,900	$9.04	$89.5K	-1.1%	Open the original filing on SEC.gov
Jun 23	Knopp Kevin J.	President and CEO	SSELL◷	3,422	$9.06	$31K	-0.4%	Open the original filing on SEC.gov
Jun 22	AWM Investment Company,…	10% Owner	SSELL	4,668	$8.99	$42K	-0.1%	Open the original filing on SEC.gov
Jun 11	Vann Brandi C	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Vann Brandi C	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Leonhart Michele M.	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Leonhart Michele M.	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Spoto Mark	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Spoto Mark	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Hunt Anthony	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Hunt Anthony	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Hrusovsky E Kevin	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Hrusovsky E Kevin	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Eloi Fenel M	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Eloi Fenel M	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 11	Crandell Keith	Director	AGRANT◆	6,209	—	—	—	Open the original filing on SEC.gov
Jun 11	Crandell Keith	Director	AGRANT◆	13,656	—	—	—	Open the original filing on SEC.gov
Jun 10	Leonhart Michele M.	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Leonhart Michele M.	Director	MEXER	14,083	—	—	+217.2%	Open the original filing on SEC.gov
Jun 10	Spoto Mark	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Spoto Mark	Director	MEXER	14,083	—	—	+18.7%	Open the original filing on SEC.gov
Jun 10	Hunt Anthony	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Hunt Anthony	Director	MEXER	14,083	—	—	+46.8%	Open the original filing on SEC.gov
Jun 10	Hrusovsky E Kevin	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Hrusovsky E Kevin	Director	MEXER	14,083	—	—	+9.3%	Open the original filing on SEC.gov
Jun 10	Eloi Fenel M	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Eloi Fenel M	Director	MEXER	14,083	—	—	+52.5%	Open the original filing on SEC.gov
Jun 10	Crandell Keith	Director	MEXER◆	14,083	—	—	—	Open the original filing on SEC.gov
Jun 10	Crandell Keith	Director	MEXER	14,083	—	—	+55.7%	Open the original filing on SEC.gov
Jun 4	AWM Investment Company,…	10% Owner	SSELL	39,782	$8.97	$356.9K	-0.8%	Open the original filing on SEC.gov
Jun 4	Brown Christopher D.	Director	SSELL◷	100	$9.00	$900	<0.1%	Open the original filing on SEC.gov
Jun 3	Brown Christopher D.	Director	SSELL◷	20,000	$8.73	$174.6K	-2.2%	Open the original filing on SEC.gov
Jun 2	AWM Investment Company,…	10% Owner	SSELL	2,500	$8.95	$22.4K	<0.1%	Open the original filing on SEC.gov
May 28	Brown Christopher D.	Director	SSELL◷	30,000	$9.00	$270K	-3.2%	Open the original filing on SEC.gov
May 28	AWM Investment Company,…	10% Owner	SSELL	170,442	$8.66	$1.5M	-3.3%	Open the original filing on SEC.gov
May 28	Griffith Joseph H. IV	Chief Financial Officer	SSELL◷	6,940	$9.03	$62.7K	-5.0%	Open the original filing on SEC.gov
May 27	AWM Investment Company,…	10% Owner	SSELL	15,000	$8.25	$123.8K	-0.3%	Open the original filing on SEC.gov
May 27	AWM Investment Company,…	10% Owner	SSELL	1,500	$8.25	$12.4K	<0.1%	Open the original filing on SEC.gov
May 11	AWM Investment Company,…	10% Owner	SSELL	5,000	$8.25	$41.3K	-0.1%	Open the original filing on SEC.gov
May 8	AWM Investment Company,…	10% Owner	SSELL	3,025	$8.20	$24.8K	<0.1%	Open the original filing on SEC.gov
May 8	Kenneweg John	SVP, Sales & Product…	SSELL	18,255	$8.11	$148K	-24.0%	Open the original filing on SEC.gov
May 7	AWM Investment Company,…	10% Owner	SSELL	12,819	$8.20	$105.2K	-0.3%	Open the original filing on SEC.gov
May 6	Brown Christopher D.	Director	SSELL◷	20,000	$7.23	$144.6K	-2.1%	Open the original filing on SEC.gov
May 6	AWM Investment Company,…	10% Owner	SSELL	57,365	$8.06	$462.2K	-1.1%	Open the original filing on SEC.gov
May 6	AWM Investment Company,…	10% Owner	SSELL	5,000	$8.00	$40K	-0.1%	Open the original filing on SEC.gov
May 1	Kenneweg John	SVP, Sales & Product…	MEXER◆	26,042	—	—	—	Open the original filing on SEC.gov
May 1	Kenneweg John	SVP, Sales & Product…	SSELL	7,787	$6.83	$53.2K	-9.3%	Open the original filing on SEC.gov
May 1	Kenneweg John	SVP, Sales & Product…	MEXER	26,042	—	—	+45.1%	Open the original filing on SEC.gov
Apr 28	Kenneweg John	SVP, Sales & Product…	AGRANT◆	26,042	—	—	—	Open the original filing on SEC.gov
Apr 21	Otitoju Kolawole A.	Chief Bus. & Strategy…	AGRANT◆	110,193	—	—	—	Open the original filing on SEC.gov
Apr 21	Otitoju Kolawole A.	Chief Bus. & Strategy…	AGRANT◆	146,789	—	—	—	Open the original filing on SEC.gov
Apr 10	Brown Christopher D.	Director	SSELL◷	17,578	$7.07	$124.3K	-1.8%	Open the original filing on SEC.gov
Apr 10	McCallion Kevin J.	SVP, Products and…	MEXER◷◆	2,693	—	—	—	Open the original filing on SEC.gov
Apr 10	McCallion Kevin J.	SVP, Products and…	SSELL◷	2,693	$7.01	$18.9K	-5.7%	Open the original filing on SEC.gov
Apr 10	McCallion Kevin J.	SVP, Products and…	MEXER◷	2,693	$1.05	$2.8K	+6.0%	Open the original filing on SEC.gov
Apr 9	McCallion Kevin J.	SVP, Products and…	MEXER◷◆	5,420	—	—	—	Open the original filing on SEC.gov
Apr 9	McCallion Kevin J.	SVP, Products and…	SSELL◷	5,420	$7.03	$38.1K	-10.8%	Open the original filing on SEC.gov
Apr 9	McCallion Kevin J.	SVP, Products and…	MEXER◷	5,420	$1.05	$5.7K	+12.1%	Open the original filing on SEC.gov
Apr 9	Brown Christopher D.	Director	SSELL◷	7,392	$7.04	$52K	-0.8%	Open the original filing on SEC.gov
Apr 8	McCallion Kevin J.	SVP, Products and…	MEXER◷◆	18,580	—	—	—	Open the original filing on SEC.gov
Apr 8	McCallion Kevin J.	SVP, Products and…	SSELL◷	18,580	$7.05	$131K	-29.3%	Open the original filing on SEC.gov
Apr 8	McCallion Kevin J.	SVP, Products and…	MEXER◷	18,580	$1.05	$19.5K	+41.4%	Open the original filing on SEC.gov
Apr 8	Brown Christopher D.	Director	SSELL◷	15,030	$7.05	$106K	-1.5%	Open the original filing on SEC.gov

SSELL◷$27.7K

Knopp Kevin J. · President and CEOAug 12

2,747 sh @ $10.07 · -0.5% own

SSELL◷$306.5K

Knopp Kevin J. · President and CEOAug 11

30,170 sh @ $10.16 · -4.9% own

SSELL◷$1.1M

Knopp Kevin J. · President and CEOAug 11

115,748 sh @ $9.83 · -15.8% own

SSELL◷$77.1K

Brown Christopher D. · DirectorAug 11

8,358 sh @ $9.23 · -1.0% own

SSELL◷$3.2K

Knopp Kevin J. · President and CEOAug 10

348 sh @ $9.06 · <0.1% own

SSELL◷$85.3K

Brown Christopher D. · DirectorAug 10

9,442 sh @ $9.03 · -1.1% own

SSELL◷$169.8K

Brown Christopher D. · DirectorAug 5

20,000 sh @ $8.49 · -2.4% own

SSELL$417.8K

AWM Investment Company,… · 10% OwnerAug 4

50,000 sh @ $8.36 · -1.0% own

MEXER◆—

Vann Brandi C · DirectorAug 1

5,192 sh

MEXER—

Vann Brandi C · DirectorAug 1

5,192 sh

SSELL◷$19.8K

Brown Christopher D. · DirectorJul 2

2,200 sh @ $9.02 · -0.3% own

SSELL◷$2K

Knopp Kevin J. · President and CEOJul 2

222 sh @ $9.07 · <0.1% own

SSELL◷$176.8K

Brown Christopher D. · DirectorJun 30

20,000 sh @ $8.84 · -2.3% own

SSELL◷$25.4K

Knopp Kevin J. · President and CEOJun 26

2,798 sh @ $9.09 · -0.4% own

MEXER◆—

Leonhart Michele M. · DirectorJun 25

6,486 sh

MEXER—

Leonhart Michele M. · DirectorJun 25

6,486 sh · +31.5% own

SSELL◷$149.1K

Knopp Kevin J. · President and CEOJun 25

16,388 sh @ $9.10 · -2.2% own

SSELL◷$370.5K

Knopp Kevin J. · President and CEOJun 24

40,535 sh @ $9.14 · -5.1% own

SSELL$27.5K

AWM Investment Company,… · 10% OwnerJun 23

3,050 sh @ $9.00 · <0.1% own

SSELL◷$89.5K

Brown Christopher D. · DirectorJun 23

9,900 sh @ $9.04 · -1.1% own

SSELL◷$31K

Knopp Kevin J. · President and CEOJun 23

3,422 sh @ $9.06 · -0.4% own

SSELL$42K

AWM Investment Company,… · 10% OwnerJun 22

4,668 sh @ $8.99 · -0.1% own

AGRANT◆—

Vann Brandi C · DirectorJun 11

6,209 sh

AGRANT◆—

Vann Brandi C · DirectorJun 11

13,656 sh

AGRANT◆—

Leonhart Michele M. · DirectorJun 11

6,209 sh

AGRANT◆—

Leonhart Michele M. · DirectorJun 11

13,656 sh

AGRANT◆—

Spoto Mark · DirectorJun 11

6,209 sh

AGRANT◆—

Spoto Mark · DirectorJun 11

13,656 sh

AGRANT◆—

Hunt Anthony · DirectorJun 11

6,209 sh

AGRANT◆—

Hunt Anthony · DirectorJun 11

13,656 sh

AGRANT◆—

Hrusovsky E Kevin · DirectorJun 11

6,209 sh

AGRANT◆—

Hrusovsky E Kevin · DirectorJun 11

13,656 sh

AGRANT◆—

Eloi Fenel M · DirectorJun 11

6,209 sh

AGRANT◆—

Eloi Fenel M · DirectorJun 11

13,656 sh

AGRANT◆—

Crandell Keith · DirectorJun 11

6,209 sh

AGRANT◆—

Crandell Keith · DirectorJun 11

13,656 sh

MEXER◆—

Leonhart Michele M. · DirectorJun 10

14,083 sh

MEXER—

Leonhart Michele M. · DirectorJun 10

14,083 sh · +217.2% own

MEXER◆—

Spoto Mark · DirectorJun 10

14,083 sh

MEXER—

Spoto Mark · DirectorJun 10

14,083 sh · +18.7% own

MEXER◆—

Hunt Anthony · DirectorJun 10

14,083 sh

MEXER—

Hunt Anthony · DirectorJun 10

14,083 sh · +46.8% own

MEXER◆—

Hrusovsky E Kevin · DirectorJun 10

14,083 sh

MEXER—

Hrusovsky E Kevin · DirectorJun 10

14,083 sh · +9.3% own

MEXER◆—

Eloi Fenel M · DirectorJun 10

14,083 sh

MEXER—

Eloi Fenel M · DirectorJun 10

14,083 sh · +52.5% own

MEXER◆—

Crandell Keith · DirectorJun 10

14,083 sh

MEXER—

Crandell Keith · DirectorJun 10

14,083 sh · +55.7% own

SSELL$356.9K

AWM Investment Company,… · 10% OwnerJun 4

39,782 sh @ $8.97 · -0.8% own

SSELL◷$900

Brown Christopher D. · DirectorJun 4

100 sh @ $9.00 · <0.1% own

SSELL◷$174.6K

Brown Christopher D. · DirectorJun 3

20,000 sh @ $8.73 · -2.2% own

SSELL$22.4K

AWM Investment Company,… · 10% OwnerJun 2

2,500 sh @ $8.95 · <0.1% own

SSELL◷$270K

Brown Christopher D. · DirectorMay 28

30,000 sh @ $9.00 · -3.2% own

SSELL$1.5M

AWM Investment Company,… · 10% OwnerMay 28

170,442 sh @ $8.66 · -3.3% own

SSELL◷$62.7K

Griffith Joseph H. IV · Chief Financial…May 28

6,940 sh @ $9.03 · -5.0% own

SSELL$123.8K

AWM Investment Company,… · 10% OwnerMay 27

15,000 sh @ $8.25 · -0.3% own

SSELL$12.4K

AWM Investment Company,… · 10% OwnerMay 27

1,500 sh @ $8.25 · <0.1% own

SSELL$41.3K

AWM Investment Company,… · 10% OwnerMay 11

5,000 sh @ $8.25 · -0.1% own

SSELL$24.8K

AWM Investment Company,… · 10% OwnerMay 8

3,025 sh @ $8.20 · <0.1% own

SSELL$148K

Kenneweg John · SVP, Sales &…May 8

18,255 sh @ $8.11 · -24.0% own

SSELL$105.2K

AWM Investment Company,… · 10% OwnerMay 7

12,819 sh @ $8.20 · -0.3% own

SSELL◷$144.6K

Brown Christopher D. · DirectorMay 6

20,000 sh @ $7.23 · -2.1% own

SSELL$462.2K

AWM Investment Company,… · 10% OwnerMay 6

57,365 sh @ $8.06 · -1.1% own

SSELL$40K

AWM Investment Company,… · 10% OwnerMay 6

5,000 sh @ $8.00 · -0.1% own

MEXER◆—

Kenneweg John · SVP, Sales &…May 1

26,042 sh

SSELL$53.2K

Kenneweg John · SVP, Sales &…May 1

7,787 sh @ $6.83 · -9.3% own

MEXER—

Kenneweg John · SVP, Sales &…May 1

26,042 sh · +45.1% own

AGRANT◆—

Kenneweg John · SVP, Sales &…Apr 28

26,042 sh

AGRANT◆—

Otitoju Kolawole A. · Chief Bus. &…Apr 21

110,193 sh

AGRANT◆—

Otitoju Kolawole A. · Chief Bus. &…Apr 21

146,789 sh

SSELL◷$124.3K

Brown Christopher D. · DirectorApr 10

17,578 sh @ $7.07 · -1.8% own

MEXER◷◆—

McCallion Kevin J. · SVP, Products and…Apr 10

2,693 sh

SSELL◷$18.9K

McCallion Kevin J. · SVP, Products and…Apr 10

2,693 sh @ $7.01 · -5.7% own

MEXER◷$2.8K

McCallion Kevin J. · SVP, Products and…Apr 10

2,693 sh @ $1.05 · +6.0% own

MEXER◷◆—

McCallion Kevin J. · SVP, Products and…Apr 9

5,420 sh

SSELL◷$38.1K

McCallion Kevin J. · SVP, Products and…Apr 9

5,420 sh @ $7.03 · -10.8% own

MEXER◷$5.7K

McCallion Kevin J. · SVP, Products and…Apr 9

5,420 sh @ $1.05 · +12.1% own

SSELL◷$52K

Brown Christopher D. · DirectorApr 9

7,392 sh @ $7.04 · -0.8% own

MEXER◷◆—

McCallion Kevin J. · SVP, Products and…Apr 8

18,580 sh

SSELL◷$131K

McCallion Kevin J. · SVP, Products and…Apr 8

18,580 sh @ $7.05 · -29.3% own

MEXER◷$19.5K

McCallion Kevin J. · SVP, Products and…Apr 8

18,580 sh @ $1.05 · +41.4% own

SSELL◷$106K

Brown Christopher D. · DirectorApr 8

15,030 sh @ $7.05 · -1.5% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 35 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.