908 Devices Inc. (MASS)

908 Devices Inc. recorded 30 insider trading transactions over the past 90 days, totaling approximately 7.97 million dollars in sales. These divestments occurred following the August 11 earnings report, where the firm beat expectations by 21.4%. Executives, including the CEO, executed multiple planned and proposed stock liquidations amid a 14.5% share price increase.
Ticker: MASS Exchange: NMS


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for 908 Devices Inc.. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
1.4
Kenneweg John SVP, Sales & Product Marketing Officer
Transaction date
Planned sale
Price
93.75
Quantity 18,552 +4.8%
Value US$577,529
1.4
Kenneweg John SVP, Sales & Product Marketing Officer
Transaction date
Planned sale
Price
132.97
Quantity 97,581 -40.5%
Value US$3,511,270
1.4
Kenneweg John SVP, Sales & Product Marketing Officer
Transaction date
Planned sale
Price
379.56
Quantity 33,276 +0.5%
Value US$1,807,001
1.4
John Kenneweg Officer Officer
Transaction date
Proposed sale
Price
9.73
Quantity 1,000
Value US$100,000
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
10.58
Quantity 1,000 -3.7%
Value US$100,000
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Planned sale
Price
10.95
Quantity 11,459 -8.6%
Value US$125,476
1.8
Joseph Griffith Officer Officer
Transaction date
Proposed sale
Price
10.92
Quantity 11,459
Value US$125,132
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
10.35
Quantity 20,000 -3.5%
Value US$207,000
2.5
Kevin Knopp Officer Officer
Transaction date
Proposed sale
Price
10.25
Quantity 20,000
Value US$205,000
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
10.06
Quantity 7,622 -1.3%
Value US$76,677
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
10.07
Quantity 2,747 -0.5%
Value US$27,662
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.23
Quantity 8,358 -1.0%
Value US$77,144
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
10.16
Quantity 30,170 -4.9%
Value US$306,527
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.83
Quantity 115,748 -15.8%
Value US$1,137,803
2.5
Kevin Knopp Officer Officer
Transaction date
Proposed sale
Price
9.62
Quantity 140,000
Value US$1,347,000
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.03
Quantity 9,442 -1.1%
Value US$85,261
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.06
Quantity 348 -0.0%
Value US$3,153
1.9
CHRISTOPHER BROWN Director Non-Executive Director
Transaction date
Proposed sale
Price
8.88
Quantity 100,000
Value US$888,000
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
8.49
Quantity 20,000 -2.4%
Value US$169,800
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.02
Quantity 2,200 -0.3%
Value US$19,844
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.07
Quantity 222 -0.0%
Value US$2,014
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
8.84
Quantity 20,000 -2.3%
Value US$176,800
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.09
Quantity 2,798 -0.4%
Value US$25,434
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.10
Quantity 16,388 -2.2%
Value US$149,131
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.14
Quantity 40,535 -5.1%
Value US$370,490
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.04
Quantity 9,900 -1.1%
Value US$89,496
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Planned sale
Price
9.06
Quantity 3,422 -0.4%
Value US$31,003
2.5
Kevin Knopp Officer Officer
Transaction date
Proposed sale
Price
9.05
Quantity 80,000
Value US$724,000
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.00
Quantity 100 -0.0%
Value US$900
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
8.73
Quantity 20,000 -2.2%
Value US$174,600
1.9
CHRISTOPHER BROWN Officer Officer
Transaction date
Proposed sale
Price
8.85
Quantity 70,000
Value US$619,500
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Planned sale
Price
9.03
Quantity 6,940 -5.0%
Value US$62,668
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
9.00
Quantity 30,000 -3.2%
Value US$270,000
1.8
JOSEPH GRIFFITH Officer Officer
Transaction date
Proposed sale
Price
8.16
Quantity 6,940
Value US$56,630
1.4
Kenneweg John SVP, Sales & Product Marketing Officer
Transaction date
Sale
Price
8.11
Quantity 18,255 -24.0%
Value US$148,048
1.4
JOHN WESLEY KENNEWEG Officer; Director Executive Director
Transaction date
Proposed sale
Price
8.11
Quantity 18,255
Value US$148,085
3.3
AWM Investment Company, Inc. Large shareholder
Transaction date
Sale
Price
8.00
Quantity 5,000 -0.1%
Value US$40,000
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
7.23
Quantity 20,000 -2.1%
Value US$144,600
1.4
Kenneweg John SVP, Sales & Product Marketing Officer
Transaction date
Sale
Price
6.83
Quantity 7,787 -9.3%
Value US$53,185
McCallion Kevin J. SVP, Products and Production Officer
Transaction date
Planned sale
Price
7.01
Quantity 2,693 -5.7%
Value US$18,878
McCallion Kevin J. SVP, Products and Production Officer
Transaction date
Planned sale
Price
7.01
Quantity 2,693 -5.7%
Value US$18,878
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
7.07
Quantity 17,578 -1.8%
Value US$124,276
McCallion Kevin J. SVP, Products and Production Officer
Transaction date
Planned sale
Price
7.03
Quantity 5,420 -10.8%
Value US$38,103
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
7.04
Quantity 7,392 -0.8%
Value US$52,040
McCallion Kevin J. SVP, Products and Production Officer
Transaction date
Planned sale
Price
7.05
Quantity 18,580 -29.3%
Value US$130,989
1.9
Brown Christopher D. Non-Executive Director
Transaction date
Planned sale
Price
7.05
Quantity 15,030 -1.5%
Value US$105,962
KEVIN MCCALLION Officer Officer
Transaction date
Proposed sale
Price
6.76
Quantity 27,000
Value US$182,520
1.9
CHRISTOPHER BROWN Director Non-Executive Director
Transaction date
Proposed sale
Price
6.76
Quantity 100,000
Value US$676,000
McCallion Kevin J. SVP, Products and Production Officer
Transaction date
Planned sale
Price
7.00
Quantity 7 -0.0%
Value US$49
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Sale
Price
6.18
Quantity 34,764 -4.2%
Value US$214,842
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Sale
Price
6.18
Quantity 23,175 -14.2%
Value US$143,222
2.5
Knopp Kevin J. President and CEO Executive Director
Transaction date
Sale
Price
6.18
Quantity 34,764 -4.2%
Value US$214,842
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Sale
Price
6.18
Quantity 23,175 -14.2%
Value US$143,222
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Planned sale
Price
9.05
Quantity 4,292 -4.4%
Value US$38,849
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Planned sale
Price
9.04
Quantity 708 -0.7%
Value US$6,398
1.8
JOSEPH H GRIFFITH IV Officer Officer
Transaction date
Proposed sale
Price
8.99
Quantity 5,000
Value US$44,950
1.8
Griffith Joseph H. IV Chief Financial Officer Officer
Transaction date
Planned sale
Price
7.07
Quantity 5,000 -4.9%
Value US$35,338
1.8
JOSEPH H GRIFFITH IV Officer Officer
Transaction date
Proposed sale
Price
6.82
Quantity 5,000
Value US$34,100
1.9
Turner Michael S. Chief Legal & Admin Officer Officer
Transaction date
Planned sale
Price
7.50
Quantity 1,373 -100.0%
Value US$10,298
1.9
Turner Michael S. Chief Legal & Admin Officer Officer
Transaction date
Planned sale
Price
7.51
Quantity 7,148 -83.9%
Value US$53,653
1.9
Turner Michael S. Chief Legal & Admin Officer Officer
Transaction date
Planned sale
Price
7.51
Quantity 16,082 -65.4%
Value US$120,839
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-09-17 2026-09-17 PlS Planned sale

SVP, Sales & Product Marketing

Officer
18,552 +4.8%
93.75
US$577,529
18,552 +4.8% 93.75 US$577,529
2026-09-17 2026-09-16 PlS Planned sale

SVP, Sales & Product Marketing

Officer
97,581 -40.5%
132.97
US$3,511,270
97,581 -40.5% 132.97 US$3,511,270
2026-09-17 2026-09-15 PlS Planned sale

SVP, Sales & Product Marketing

Officer
33,276 +0.5%
379.56
US$1,807,001
33,276 +0.5% 379.56 US$1,807,001
2026-09-15 2026-09-15 PrS Proposed sale

Officer

Officer
1,000
9.73
US$100,000
1,000 9.73 US$100,000
2026-09-04 2026-09-02 PlS Planned sale Non-Executive Director
1,000 -3.7%
10.58
US$100,000
1,000 -3.7% 10.58 US$100,000
2026-08-27 2026-08-25 PlS Planned sale

Chief Financial Officer

Officer
11,459 -8.6%
10.95
US$125,476
11,459 -8.6% 10.95 US$125,476
2026-08-25 2026-08-25 PrS Proposed sale

Officer

Officer
11,459
10.92
US$125,132
11,459 10.92 US$125,132
2026-08-24 2026-08-21 S Sale Large shareholder
41,578 -0.9%
10.61
US$441,159
41,578 -0.9% 10.61 US$441,159
2026-08-24 2026-08-20 S Sale Large shareholder
8,422 -0.2%
10.52
US$88,638
8,422 -0.2% 10.52 US$88,638
2026-08-17 2026-08-17 PlS Planned sale

President and CEO

Executive Director
20,000 -3.5%
10.35
US$207,000
20,000 -3.5% 10.35 US$207,000
2026-08-17 2026-08-17 PrS Proposed sale

Officer

Officer
20,000
10.25
US$205,000
20,000 10.25 US$205,000
2026-08-17 2026-08-13 PlS Planned sale

President and CEO

Executive Director
7,622 -1.3%
10.06
US$76,677
7,622 -1.3% 10.06 US$76,677
2026-08-12 2026-08-12 PlS Planned sale

President and CEO

Executive Director
2,747 -0.5%
10.07
US$27,662
2,747 -0.5% 10.07 US$27,662
2026-08-12 2026-08-11 PlS Planned sale Non-Executive Director
8,358 -1.0%
9.23
US$77,144
8,358 -1.0% 9.23 US$77,144
2026-08-12 2026-08-11 PlS Planned sale

President and CEO

Executive Director
30,170 -4.9%
10.16
US$306,527
30,170 -4.9% 10.16 US$306,527
2026-08-12 2026-08-11 PlS Planned sale

President and CEO

Executive Director
115,748 -15.8%
9.83
US$1,137,803
115,748 -15.8% 9.83 US$1,137,803
2026-08-11 2026-08-11 PrS Proposed sale

Officer

Officer
140,000
9.62
US$1,347,000
140,000 9.62 US$1,347,000
2026-08-12 2026-08-10 PlS Planned sale Non-Executive Director
9,442 -1.1%
9.03
US$85,261
9,442 -1.1% 9.03 US$85,261
2026-08-12 2026-08-10 PlS Planned sale

President and CEO

Executive Director
348 -0.0%
9.06
US$3,153
348 -0.0% 9.06 US$3,153
2026-08-10 2026-08-10 PrS Proposed sale

Director

Non-Executive Director
100,000
8.88
US$888,000
100,000 8.88 US$888,000
2026-08-07 2026-08-05 PlS Planned sale Non-Executive Director
20,000 -2.4%
8.49
US$169,800
20,000 -2.4% 8.49 US$169,800
2026-08-06 2026-08-04 S Sale Large shareholder
50,000 -1.0%
8.36
US$417,765
50,000 -1.0% 8.36 US$417,765
2026-07-07 2026-07-02 PlS Planned sale Non-Executive Director
2,200 -0.3%
9.02
US$19,844
2,200 -0.3% 9.02 US$19,844
2026-07-07 2026-07-02 PlS Planned sale

President and CEO

Executive Director
222 -0.0%
9.07
US$2,014
222 -0.0% 9.07 US$2,014
2026-07-02 2026-06-30 PlS Planned sale Non-Executive Director
20,000 -2.3%
8.84
US$176,800
20,000 -2.3% 8.84 US$176,800
2026-06-30 2026-06-26 PlS Planned sale

President and CEO

Executive Director
2,798 -0.4%
9.09
US$25,434
2,798 -0.4% 9.09 US$25,434
2026-06-25 2026-06-25 PlS Planned sale

President and CEO

Executive Director
16,388 -2.2%
9.10
US$149,131
16,388 -2.2% 9.10 US$149,131
2026-06-25 2026-06-24 PlS Planned sale

President and CEO

Executive Director
40,535 -5.1%
9.14
US$370,490
40,535 -5.1% 9.14 US$370,490
2026-06-25 2026-06-23 PlS Planned sale Non-Executive Director
9,900 -1.1%
9.04
US$89,496
9,900 -1.1% 9.04 US$89,496
2026-06-25 2026-06-23 PlS Planned sale

President and CEO

Executive Director
3,422 -0.4%
9.06
US$31,003
3,422 -0.4% 9.06 US$31,003
2026-06-24 2026-06-23 S Sale Large shareholder
3,050 -0.1%
9.00
US$27,463
3,050 -0.1% 9.00 US$27,463
2026-06-23 2026-06-23 PrS Proposed sale

Officer

Officer
80,000
9.05
US$724,000
80,000 9.05 US$724,000
2026-06-24 2026-06-22 S Sale Large shareholder
4,668 -0.1%
8.99
US$41,965
4,668 -0.1% 8.99 US$41,965
2026-06-05 2026-06-04 PlS Planned sale Non-Executive Director
100 -0.0%
9.00
US$900
100 -0.0% 9.00 US$900
2026-06-04 2026-06-04 S Sale Large shareholder
39,782 -0.8%
8.97
US$356,856
39,782 -0.8% 8.97 US$356,856
2026-06-04 2026-06-03 PlS Planned sale Non-Executive Director
20,000 -2.2%
8.73
US$174,600
20,000 -2.2% 8.73 US$174,600
2026-06-03 2026-06-03 PrS Proposed sale

Officer

Officer
70,000
8.85
US$619,500
70,000 8.85 US$619,500
2026-06-04 2026-06-02 S Sale Large shareholder
2,500 -0.1%
8.95
US$22,375
2,500 -0.1% 8.95 US$22,375
2026-05-29 2026-05-28 S Sale Large shareholder
170,442 -3.3%
8.66
US$1,475,925
170,442 -3.3% 8.66 US$1,475,925
2026-05-29 2026-05-28 PlS Planned sale

Chief Financial Officer

Officer
6,940 -5.0%
9.03
US$62,668
6,940 -5.0% 9.03 US$62,668
2026-05-29 2026-05-28 PlS Planned sale Non-Executive Director
30,000 -3.2%
9.00
US$270,000
30,000 -3.2% 9.00 US$270,000
2026-05-28 2026-05-28 PrS Proposed sale

Officer

Officer
6,940
8.16
US$56,630
6,940 8.16 US$56,630
2026-05-29 2026-05-27 S Sale Large shareholder
15,000 -0.3%
8.25
US$123,791
15,000 -0.3% 8.25 US$123,791
2026-05-29 2026-05-27 S Sale Large shareholder
1,500 -0.0%
8.25
US$12,375
1,500 -0.0% 8.25 US$12,375
2026-05-13 2026-05-11 S Sale Large shareholder
5,000 -0.1%
8.25
US$41,257
5,000 -0.1% 8.25 US$41,257
2026-05-11 2026-05-08 S Sale

SVP, Sales & Product Marketing

Officer
18,255 -24.0%
8.11
US$148,048
18,255 -24.0% 8.11 US$148,048
2026-05-08 2026-05-08 S Sale Large shareholder
3,025 -0.1%
8.20
US$24,805
3,025 -0.1% 8.20 US$24,805
2026-05-08 2026-05-08 PrS Proposed sale

Officer; Director

Executive Director
18,255
8.11
US$148,085
18,255 8.11 US$148,085
2026-05-08 2026-05-07 S Sale Large shareholder
12,819 -0.2%
8.20
US$105,170
12,819 -0.2% 8.20 US$105,170
2026-05-08 2026-05-06 S Sale Large shareholder
57,365 -1.1%
8.06
US$462,155
57,365 -1.1% 8.06 US$462,155
2026-05-08 2026-05-06 S Sale Large shareholder
5,000 -0.1%
8.00
US$40,000
5,000 -0.1% 8.00 US$40,000
2026-05-07 2026-05-06 PlS Planned sale Non-Executive Director
20,000 -2.1%
7.23
US$144,600
20,000 -2.1% 7.23 US$144,600
2026-05-04 2026-05-01 S Sale

SVP, Sales & Product Marketing

Officer
7,787 -9.3%
6.83
US$53,185
7,787 -9.3% 6.83 US$53,185
2026-04-14 2026-04-10 PlS Planned sale

SVP, Products and Production

Officer
2,693 -5.7%
7.01
US$18,878
2,693 -5.7% 7.01 US$18,878
2026-04-14 2026-04-10 PlS Planned sale

SVP, Products and Production

Officer
2,693 -5.7%
7.01
US$18,878
2,693 -5.7% 7.01 US$18,878
2026-04-10 2026-04-10 PlS Planned sale Non-Executive Director
17,578 -1.8%
7.07
US$124,276
17,578 -1.8% 7.07 US$124,276
2026-04-10 2026-04-09 PlS Planned sale

SVP, Products and Production

Officer
5,420 -10.8%
7.03
US$38,103
5,420 -10.8% 7.03 US$38,103
2026-04-10 2026-04-09 PlS Planned sale Non-Executive Director
7,392 -0.8%
7.04
US$52,040
7,392 -0.8% 7.04 US$52,040
2026-04-10 2026-04-08 PlS Planned sale

SVP, Products and Production

Officer
18,580 -29.3%
7.05
US$130,989
18,580 -29.3% 7.05 US$130,989
2026-04-10 2026-04-08 PlS Planned sale Non-Executive Director
15,030 -1.5%
7.05
US$105,962
15,030 -1.5% 7.05 US$105,962
2026-04-08 2026-04-08 PrS Proposed sale

Officer

Officer
27,000
6.76
US$182,520
27,000 6.76 US$182,520
2026-04-08 2026-04-08 PrS Proposed sale

Director

Non-Executive Director
100,000
6.76
US$676,000
100,000 6.76 US$676,000
2026-03-04 2026-03-02 PlS Planned sale

SVP, Products and Production

Officer
7 -0.0%
7.00
US$49
7 -0.0% 7.00 US$49
2026-02-03 2026-02-02 S Sale

President and CEO

Executive Director
34,764 -4.2%
6.18
US$214,842
34,764 -4.2% 6.18 US$214,842
2026-02-03 2026-02-02 S Sale

Chief Financial Officer

Officer
23,175 -14.2%
6.18
US$143,222
23,175 -14.2% 6.18 US$143,222
2026-02-03 2026-02-02 S Sale

President and CEO

Executive Director
34,764 -4.2%
6.18
US$214,842
34,764 -4.2% 6.18 US$214,842
2026-02-03 2026-02-02 S Sale

Chief Financial Officer

Officer
23,175 -14.2%
6.18
US$143,222
23,175 -14.2% 6.18 US$143,222
2025-10-06 2025-10-03 PlS Planned sale

Chief Financial Officer

Officer
4,292 -4.4%
9.05
US$38,849
4,292 -4.4% 9.05 US$38,849
2025-10-06 2025-10-02 PlS Planned sale

Chief Financial Officer

Officer
708 -0.7%
9.04
US$6,398
708 -0.7% 9.04 US$6,398
2025-10-02 2025-10-02 PrS Proposed sale

Officer

Officer
5,000
8.99
US$44,950
5,000 8.99 US$44,950
2025-09-23 2025-09-19 PlS Planned sale

Chief Financial Officer

Officer
5,000 -4.9%
7.07
US$35,338
5,000 -4.9% 7.07 US$35,338
2025-09-19 2025-09-19 PrS Proposed sale

Officer

Officer
5,000
6.82
US$34,100
5,000 6.82 US$34,100
2025-06-18 2025-06-18 PlS Planned sale

Chief Legal & Admin Officer

Officer
1,373 -100.0%
7.50
US$10,298
1,373 -100.0% 7.50 US$10,298
2025-06-18 2025-06-17 PlS Planned sale

Chief Legal & Admin Officer

Officer
7,148 -83.9%
7.51
US$53,653
7,148 -83.9% 7.51 US$53,653
2025-06-18 2025-06-16 PlS Planned sale

Chief Legal & Admin Officer

Officer
16,082 -65.4%
7.51
US$120,839
16,082 -65.4% 7.51 US$120,839