Stock chart
Ticker: MASS Exchange: NMS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2025-06-18 2025-06-18 PS Planned sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
1,000 -100.0%
7.50
USD 10,298
1,000 -100.0% 7.50 USD 100,000
2025-06-18 2025-06-17 PS Planned sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
1,000 -83.9%
7.51
USD 53,653
1,000 -83.9% 7.51 USD 100,000
2025-06-18 2025-06-16 PS Planned sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
1,000 -65.4%
7.51
USD 120,839
1,000 -65.4% 7.51 USD 100,000
2025-06-06 2025-06-04 PS Planned sale

Griffith Joseph H. IV

Chief Financial Officer

Officer
6,940 -6.3%
7.08
USD 49,135
6,940 -6.3% 7.08 USD 49,135
2025-05-19 2025-05-15 B Purchase

Knopp Kevin J.

President and CEO

Executive Director
15,000 +2.1%
4.44
USD 66,596
15,000 +2.1% 4.44 USD 66,596
2025-05-15 2025-05-14 B Purchase

Spoto Mark

Non-Executive Director
3,000 +5.0%
4.25
USD 12,750
3,000 +5.0% 4.25 USD 12,750
2025-05-15 2025-05-14 B Purchase

Spoto Mark

Non-Executive Director
7,000 +13.2%
4.30
USD 30,100
7,000 +13.2% 4.30 USD 30,100
2025-05-14 2025-05-14 B Purchase

Knopp Kevin J.

President and CEO

Executive Director
15,000 +2.2%
4.32
USD 64,788
15,000 +2.2% 4.32 USD 64,788
2025-02-04 2025-02-03 S Sale

Brown Christopher D.

Chief Product Officer

Officer
3,641 -0.4%
2.33
USD 8,501
3,641 -0.4% 2.33 USD 8,501
2025-02-04 2025-02-03 S Sale

Brown Christopher D.

Chief Product Officer

Officer
2,459 -0.3%
2.34
USD 5,763
2,459 -0.3% 2.34 USD 5,763
2025-02-04 2025-02-03 S Sale

Brown Christopher D.

Chief Product Officer

Officer
1,667 -0.2%
2.36
USD 3,926
1,667 -0.2% 2.36 USD 3,926
2025-02-04 2025-02-03 S Sale

Griffith Joseph H. IV

Chief Financial Officer

Officer
4,321 -3.8%
2.35
USD 10,167
4,321 -3.8% 2.35 USD 10,167
2025-02-04 2025-02-03 S Sale

Griffith Joseph H. IV

Chief Financial Officer

Officer
3,955 -3.3%
2.34
USD 9,235
3,955 -3.3% 2.34 USD 9,235
2025-02-04 2025-02-03 S Sale

Griffith Joseph H. IV

Chief Financial Officer

Officer
1,960 -1.6%
2.34
USD 4,582
1,960 -1.6% 2.34 USD 4,582
2025-02-04 2025-02-03 S Sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
4,162 -14.5%
2.32
USD 9,654
4,162 -14.5% 2.32 USD 9,654
2025-02-04 2025-02-03 S Sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
3,807 -11.7%
2.32
USD 8,831
3,807 -11.7% 2.32 USD 8,831
2025-02-04 2025-02-03 S Sale

Turner Michael S.

Chief Legal & Admin Officer

Officer
1,703 -5.0%
2.36
USD 4,014
1,703 -5.0% 2.36 USD 4,014
2025-02-04 2025-02-03 S Sale

Knopp Kevin J.

President and CEO

Executive Director
6,524 -0.9%
2.32
USD 15,125
6,524 -0.9% 2.32 USD 15,125
2025-02-04 2025-02-03 S Sale

Knopp Kevin J.

President and CEO

Executive Director
5,159 -0.7%
2.31
USD 11,921
5,159 -0.7% 2.31 USD 11,921
2025-02-04 2025-02-03 S Sale

Knopp Kevin J.

President and CEO

Executive Director
4,318 -0.6%
2.33
USD 10,064
4,318 -0.6% 2.33 USD 10,064
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