908 Devices Inc. (MASS) Insider Trading Activity

NASDAQ$10.99+0.32 (3.00%)
Market Cap
$441.03M
Sector
Healthcare
Industry
Medical—Specialties
Rank in Sector
637 of 849
Rank in Industry
9 of 13

MASS Insider Trading Activity

MASS Median Price and Trade Amounts History Chart

Statistics of Insider Transactions

Amount of Insider Buys and Sells

Buys
$0
0
0
Sells
$9,807,246
54
100

Related Transactions

McCallion Kevin J.SVP, Products and Production
0
$0
4
$188,019
$-188,019
Kenneweg JohnSVP, Sales & Product Marketing
0
$0
4
$333,256
$-333,256
Griffith Joseph H. IVChief Financial Officer
0
$0
4
$396,516
$-396,516
Brown Christopher D.director
0
$0
15
$2.16M
$-2.16M
Knopp Kevin J.President and CEO
0
$0
11
$2.55M
$-2.55M
AWM Investment Company, Inc.10 percent owner
0
$0
16
$4.17M
$-4.17M

About 908 Devices Inc.

908 Devices Inc. provides purpose-built handheld mass spectrometry and fourier transform infrared (FTIR) devices for use in vital health and safety applications. The company’s products include MX908, a handheld, battery-powered, and Mass Spec device that is designed for rapid analysis of solid, liquid, vapor, and aerosol materials of unknown identity; XplorIR, a handheld device that uses FTIR spectroscopy to identify, quantify, and track gases and vapors; ThreatID, a portable FTIR device that rapidly detects and identifies approximately 28,000 …

Insider Activity of 908 Devices Inc.

Over the last 12 months, insiders at 908 Devices Inc. have bought $0 and sold $9.81M worth of 908 Devices Inc. stock.

On average, over the past 5 years, insiders at 908 Devices Inc. have bought $164,193 and sold $4.43M worth of stock each year.

There was no buying activity among insiders over the last 12 months.

The last purchase of 15,000 shares for transaction amount of $66,596 was made by Knopp Kevin J. (President and CEO) on 2025‑05‑15.

List of Insider Buy and Sell Transactions, 908 Devices Inc.

2026-10-07SaleBrown Christopher D.director
30,000
0.0738%
$11.89
$356,700
-1.10%
2026-10-06SaleGriffith Joseph H. IVChief Financial Officer
5,000
0.0129%
$13.03
$65,150
-4.99%
2026-09-29SaleAWM Investment Company, Inc.10 percent owner
18,000
0.0426%
$11.52
$207,322
-0.25%
2026-09-24SaleAWM Investment Company, Inc.10 percent owner
24,000
0.0577%
$11.36
$272,626
+2.52%
2026-09-23SaleAWM Investment Company, Inc.10 percent owner
1,000
0.0025%
$11.25
$11,250
+7.86%
2026-09-17SaleKenneweg JohnSVP, Sales & Product Marketing
5,257
0.0119%
$10.22
$53,727
+6.19%
2026-09-16SaleKenneweg JohnSVP, Sales & Product Marketing
21,399
0.0532%
$10.11
$216,344
+17.49%
2026-09-15SaleKenneweg JohnSVP, Sales & Product Marketing
1,000
0.0024%
$10.00
$10,000
+16.85%
2026-09-02SaleBrown Christopher D.director
30,000
0.0749%
$10.58
$317,400
+11.23%
2026-08-25SaleGriffith Joseph H. IVChief Financial Officer
11,459
0.0278%
$10.95
$125,476
+3.18%
2026-08-21SaleAWM Investment Company, Inc.10 percent owner
41,578
0.1095%
$10.61
$441,159
+5.43%
2026-08-20SaleAWM Investment Company, Inc.10 percent owner
8,422
0.0227%
$10.52
$88,638
+8.74%
2026-08-17SaleKnopp Kevin J.President and CEO
20,000
0.0538%
$10.35
$207,000
+9.72%
2026-08-13SaleKnopp Kevin J.President and CEO
7,622
0.0201%
$10.06
$76,677
+9.79%
2026-08-12SaleKnopp Kevin J.President and CEO
2,747
0.0067%
$10.07
$27,662
+10.28%
2026-08-11SaleBrown Christopher D.director
8,358
0.0188%
$9.23
$77,144
+9.89%
2026-08-11SaleKnopp Kevin J.President and CEO
145,918
0.3517%
$9.90
$1.44M
+9.89%
2026-08-10SaleBrown Christopher D.director
9,442
0.0263%
$9.03
$85,261
+24.89%
2026-08-10SaleKnopp Kevin J.President and CEO
348
0.001%
$9.06
$3,153
+24.89%
2026-08-05SaleBrown Christopher D.director
20,000
0.0492%
$8.49
$169,800
+30.08%
Total: 175
*Gray background shows transactions not older than one year

Insider Historical Profitability

<0.0001%
Knopp Kevin J.President and CEO
555968
1.3451%
$5.93M735
<0.0001%
CRANDELL KEITH
5725045
13.8508%
$61.09M10
<0.0001%
ARCH Venture Fund VII, L.P.10 percent owner
5725045
13.8508%
$61.09M10
<0.0001%
Kedar Sharondirector
1077091
2.6058%
$11.49M10
<0.0001%
HRUSOVSKY E KEVINdirector
243176
0.5883%
$2.59M10
<0.0001%
Basarsky Trent A.VP, Corporate Development
75200
0.1819%
$802,384.00114
<0.0001%
Spoto Markdirector
62971
0.1523%
$671,900.5730
<0.0001%
BARTHELEMY NICOLASVP, Corporate Development
0
0%
$012
<0.0001%
Turner Michael S.Chief Legal & Admin Officer
0
0%
$0112
<0.0001%
*Gray background shows insiders who have made transactions during last year

MASS Institutional Investors: Active Positions

Increased Positions60+50.85%5M+21.87%
Decreased Positions51-43.22%4M-14.73%
New Positions23New1MNew
Sold Out Positions10Sold Out406,953Sold Out
Total Postitions127+7.63%26M+7.14%

MASS Ownership Change vs Market

Institutional Investor Ownership

Top Shareholders
Top Buyers
Top Sellers
New Shareholders
Sold-Out Shareholders
Active Shareholders
Awm Investment Company, Inc.$26,468.0014.44%5.2M00%2025-09-30
First Light Asset Management, Llc$12,778.006.97%2.51M+1M+135.15%2025-09-30
State Street Corp$11,700.006.39%2.3M+11,513+0.5%2025-09-30
Ark Investment Management Llc$9,945.005.43%1.95M-694,506-26.23%2025-09-30
Blackrock, Inc.$8,939.004.88%1.76M-34,640-1.93%2025-09-30
Vanguard Group Inc$7,237.003.95%1.42M-9,383-0.66%2025-09-30
Gm Advisory Group, Llc$3,451.001.88%678,086-487,205-41.81%2025-09-30
Geode Capital Management, Llc$3,421.001.87%672,089+13,486+2.05%2025-09-30
First Eagle Investment Management, Llc$3,074.001.68%603,962+336,584+125.88%2025-09-30
Morgan Stanley$2,910.001.59%571,680+17,435+3.15%2025-09-30

Financial Ratios

Summary
Comparison with Competitors

Price to Earnings

Price/Earnings to Growth

Price to Sales

Price to Book

Price/Free Cash Flow

Analyst Recommendations

Analyst Price Targets

Prismo does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.
Information is provided 'as-is' and solely for informational purposes and is not advice. Prismo does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.