908 Devices Inc.

Brown Christopher D. sold 30,000 shares of MASS on 2 September. They now own 775,559 MASS shares.

Griffith Joseph H. Iv sold 11,459 shares of MASS on 25 August. They now own 121,497 MASS shares.

Awm Investment Company, Inc. sold 41,578 shares of MASS on 21 August. They now own 4,779,773 MASS shares.

Awm Investment Company, Inc. sold 8,422 shares of MASS on 20 August. They now own 4,821,351 MASS shares.

Knopp Kevin J. sold 20,000 shares of MASS on 17 August. They now own 555,968 MASS shares.

Knopp Kevin J. sold 7,622 shares of MASS on 13 August. They now own 575,968 MASS shares.

Knopp Kevin J. sold 2,747 shares of MASS on 12 August. They now own 583,590 MASS shares.

Brown Christopher D. sold 8,358 shares of MASS on 11 August. They now own 805,559 MASS shares.

Knopp Kevin J. sold 30,170 shares of MASS on 11 August. They now own 586,337 MASS shares.

Knopp Kevin J. sold 115,748 shares of MASS on 11 August. They now own 616,507 MASS shares.

Knopp Kevin J. sold 348 shares of MASS on 10 August. They now own 732,255 MASS shares.

Brown Christopher D. sold 9,442 shares of MASS on 10 August. They now own 813,917 MASS shares.

Brown Christopher D. sold 20,000 shares of MASS on 5 August. They now own 823,359 MASS shares.

Awm Investment Company, Inc. sold 50,000 shares of MASS on 4 August. They now own 4,829,773 MASS shares.

Vann Brandi C sold 5,192 shares of MASS on 1 August. They now own 10,385 MASS shares.

Vann Brandi C bought 5,192 shares of MASS on 1 August. They now own 5,192 MASS shares.

Brown Christopher D. sold 2,200 shares of MASS on 2 July. They now own 843,359 MASS shares.

Knopp Kevin J. sold 222 shares of MASS on 2 July. They now own 732,603 MASS shares.

Brown Christopher D. sold 20,000 shares of MASS on 30 June. They now own 845,559 MASS shares.

Knopp Kevin J. sold 2,798 shares of MASS on 26 June. They now own 732,825 MASS shares.

Leonhart Michele M. sold 6,486 shares of MASS on 25 June. They now own 6,485 MASS shares.

Knopp Kevin J. sold 16,388 shares of MASS on 25 June. They now own 735,623 MASS shares.

Leonhart Michele M. bought 6,486 shares of MASS on 25 June. They now own 27,054 MASS shares.

Knopp Kevin J. sold 40,535 shares of MASS on 24 June. They now own 752,011 MASS shares.

Knopp Kevin J. sold 3,422 shares of MASS on 23 June. They now own 792,546 MASS shares.

Awm Investment Company, Inc. sold 3,050 shares of MASS on 23 June. They now own 4,879,773 MASS shares.

Brown Christopher D. sold 9,900 shares of MASS on 23 June. They now own 865,559 MASS shares.

Awm Investment Company, Inc. sold 4,668 shares of MASS on 22 June. They now own 4,882,823 MASS shares.

Hrusovsky E Kevin bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Leonhart Michele M. bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Spoto Mark bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Crandell Keith bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Vann Brandi C bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Vann Brandi C bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Hrusovsky E Kevin bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Leonhart Michele M. bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Hunt Anthony bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Eloi Fenel M bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Spoto Mark bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Crandell Keith bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Hunt Anthony bought 13,656 shares of MASS on 11 June. They now own 13,656 MASS shares.

Eloi Fenel M bought 6,209 shares of MASS on 11 June. They now own 6,209 MASS shares.

Hrusovsky E Kevin bought 14,083 shares of MASS on 10 June. They now own 165,390 MASS shares.

Leonhart Michele M. sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Eloi Fenel M bought 14,083 shares of MASS on 10 June. They now own 40,897 MASS shares.

Spoto Mark sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Crandell Keith bought 14,083 shares of MASS on 10 June. They now own 39,374 MASS shares.

Spoto Mark bought 14,083 shares of MASS on 10 June. They now own 89,346 MASS shares.

Hunt Anthony bought 14,083 shares of MASS on 10 June. They now own 44,168 MASS shares.

Eloi Fenel M sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Leonhart Michele M. bought 14,083 shares of MASS on 10 June. They now own 20,568 MASS shares.

Hunt Anthony sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Crandell Keith sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Hrusovsky E Kevin sold 14,083 shares of MASS on 10 June. They now own 0 MASS shares.

Awm Investment Company, Inc. sold 39,782 shares of MASS on 4 June. They now own 4,887,491 MASS shares.

Brown Christopher D. sold 100 shares of MASS on 4 June. They now own 875,459 MASS shares.

Brown Christopher D. sold 20,000 shares of MASS on 3 June. They now own 875,559 MASS shares.

Awm Investment Company, Inc. sold 2,500 shares of MASS on 2 June. They now own 4,927,273 MASS shares.

Awm Investment Company, Inc. sold 170,442 shares of MASS on 28 May. They now own 4,929,773 MASS shares.

Brown Christopher D. sold 30,000 shares of MASS on 28 May. They now own 895,559 MASS shares.

Griffith Joseph H. Iv sold 6,940 shares of MASS on 28 May. They now own 132,956 MASS shares.

Awm Investment Company, Inc. sold 1,500 shares of MASS on 27 May. They now own 5,115,215 MASS shares.

Awm Investment Company, Inc. sold 15,000 shares of MASS on 27 May. They now own 5,100,215 MASS shares.

Awm Investment Company, Inc. sold 5,000 shares of MASS on 11 May. They now own 5,116,715 MASS shares.

Kenneweg John sold 18,255 shares of MASS on 8 May. They now own 57,784 MASS shares.

Awm Investment Company, Inc. sold 3,025 shares of MASS on 8 May. They now own 5,121,715 MASS shares.

Awm Investment Company, Inc. sold 12,819 shares of MASS on 7 May. They now own 5,124,740 MASS shares.

Awm Investment Company, Inc. sold 5,000 shares of MASS on 6 May. They now own 5,194,924 MASS shares.

Awm Investment Company, Inc. sold 57,365 shares of MASS on 6 May. They now own 5,137,559 MASS shares.

Brown Christopher D. sold 20,000 shares of MASS on 6 May. They now own 925,559 MASS shares.

Kenneweg John bought 26,042 shares of MASS on 1 May. They now own 83,826 MASS shares.

Kenneweg John sold 7,787 shares of MASS on 1 May. They now own 76,039 MASS shares.

Kenneweg John sold 26,042 shares of MASS on 1 May. They now own 0 MASS shares.

Kenneweg John bought 26,042 shares of MASS on 28 April. They now own 26,042 MASS shares.

Otitoju Kolawole A. bought 110,193 shares of MASS on 21 April. They now own 110,193 MASS shares.

Otitoju Kolawole A. bought 0 shares of MASS on 21 April. They now own 0 MASS shares.

Otitoju Kolawole A. bought 146,789 shares of MASS on 21 April. They now own 146,789 MASS shares.

Mccallion Kevin J. bought 2,693 shares of MASS on 10 April. They now own 47,618 MASS shares.

Mccallion Kevin J. sold 2,693 shares of MASS on 10 April. They now own 44,925 MASS shares.

Mccallion Kevin J. sold 2,693 shares of MASS on 10 April. They now own 0 MASS shares.

Brown Christopher D. sold 17,578 shares of MASS on 10 April. They now own 945,559 MASS shares.

Mccallion Kevin J. sold 5,420 shares of MASS on 9 April. They now own 2,686 MASS shares.

Brown Christopher D. sold 7,392 shares of MASS on 9 April. They now own 963,137 MASS shares.

Mccallion Kevin J. sold 5,420 shares of MASS on 9 April. They now own 44,925 MASS shares.

Mccallion Kevin J. bought 5,420 shares of MASS on 9 April. They now own 50,345 MASS shares.

Mccallion Kevin J. sold 18,580 shares of MASS on 8 April. They now own 44,925 MASS shares.

Mccallion Kevin J. bought 18,580 shares of MASS on 8 April. They now own 63,505 MASS shares.

Brown Christopher D. sold 15,030 shares of MASS on 8 April. They now own 970,529 MASS shares.

Mccallion Kevin J. sold 18,580 shares of MASS on 8 April. They now own 8,106 MASS shares.

Mccallion Kevin J. sold 7 shares of MASS on 2 March. They now own 44,925 MASS shares.

Mccallion Kevin J. sold 7 shares of MASS on 2 March. They now own 44,918 MASS shares.

Mccallion Kevin J. sold 7 shares of MASS on 2 March. They now own 26,686 MASS shares.

Mccallion Kevin J. bought 7 shares of MASS on 2 March. They now own 44,932 MASS shares.

Mccallion Kevin J. bought 42,014 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 13,460 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 39,828 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 37,801 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 26,693 shares of MASS on 26 February. They now own 0 MASS shares.

Levine Mark S. bought 98,242 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 27,917 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 21,187 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 0 shares of MASS on 26 February. They now own 44,925 MASS shares.

Levine Mark S. bought 130,468 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 8,702 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 61,459 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 41,822 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 40,011 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 46,049 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 27,656 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 36,875 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 48,466 shares of MASS on 26 February. They now own 0 MASS shares.

Kenneweg John bought 0 shares of MASS on 26 February. They now own 57,784 MASS shares.

Mccallion Kevin J. bought 21,187 shares of MASS on 26 February. They now own 0 MASS shares.

Mccallion Kevin J. bought 48,466 shares of MASS on 26 February. They now own 0 MASS shares.

Griffith Joseph H. Iv bought 121,164 shares of MASS on 2 February. They now own 121,164 MASS shares.

Griffith Joseph H. Iv bought 52,967 shares of MASS on 2 February. They now own 52,967 MASS shares.

Knopp Kevin J. sold 34,764 shares of MASS on 2 February. They now own 795,968 MASS shares.

Knopp Kevin J. bought 90,043 shares of MASS on 2 February. They now own 90,043 MASS shares.

Griffith Joseph H. Iv sold 23,175 shares of MASS on 2 February. They now own 139,896 MASS shares.

Knopp Kevin J. bought 205,978 shares of MASS on 2 February. They now own 205,978 MASS shares.

Knopp Kevin J. sold 11,255 shares of MASS on 1 February. They now own 0 MASS shares.

Griffith Joseph H. Iv bought 10,306 shares of MASS on 1 February. They now own 108,338 MASS shares.

Brown Christopher D. sold 7,418 shares of MASS on 1 February. They now own 7,418 MASS shares.

Knopp Kevin J. sold 13,449 shares of MASS on 1 February. They now own 13,448 MASS shares.

Griffith Joseph H. Iv sold 5,102 shares of MASS on 1 February. They now own 0 MASS shares.

Knopp Kevin J. bought 11,255 shares of MASS on 1 February. They now own 733,988 MASS shares.

Knopp Kevin J. sold 17,007 shares of MASS on 1 February. They now own 34,014 MASS shares.

Griffith Joseph H. Iv sold 11,260 shares of MASS on 1 February. They now own 22,521 MASS shares.

Griffith Joseph H. Iv bought 5,102 shares of MASS on 1 February. They now own 98,032 MASS shares.

Brown Christopher D. bought 7,418 shares of MASS on 1 February. They now own 974,567 MASS shares.

Brown Christopher D. bought 10,992 shares of MASS on 1 February. They now own 985,559 MASS shares.

Griffith Joseph H. Iv bought 43,473 shares of MASS on 1 February. They now own 163,071 MASS shares.

Brown Christopher D. bought 5,027 shares of MASS on 1 February. They now own 967,149 MASS shares.

Knopp Kevin J. sold 66,288 shares of MASS on 1 February. They now own 132,576 MASS shares.

Knopp Kevin J. bought 13,449 shares of MASS on 1 February. They now own 747,437 MASS shares.

Griffith Joseph H. Iv sold 10,306 shares of MASS on 1 February. They now own 10,306 MASS shares.

Griffith Joseph H. Iv bought 11,260 shares of MASS on 1 February. They now own 119,598 MASS shares.

Knopp Kevin J. bought 17,007 shares of MASS on 1 February. They now own 764,444 MASS shares.

Brown Christopher D. sold 10,992 shares of MASS on 1 February. They now own 21,982 MASS shares.

Knopp Kevin J. bought 66,288 shares of MASS on 1 February. They now own 830,732 MASS shares.

Brown Christopher D. sold 5,027 shares of MASS on 1 February. They now own 0 MASS shares.

Griffith Joseph H. Iv sold 43,473 shares of MASS on 1 February. They now own 86,945 MASS shares.

Spoto Mark bought 928 shares of MASS on 30 December. They now own 75,263 MASS shares.

Spoto Mark sold 928 shares of MASS on 30 December. They now own 0 MASS shares.

Spoto Mark bought 928 shares of MASS on 14 October. They now own 928 MASS shares.

Griffith Joseph H. Iv sold 4,292 shares of MASS on 3 October. They now own 92,930 MASS shares.

Griffith Joseph H. Iv sold 708 shares of MASS on 2 October. They now own 97,222 MASS shares.

Griffith Joseph H. Iv sold 5,000 shares of MASS on 19 September. They now own 97,930 MASS shares.

Vann Brandi C bought 0 shares of MASS on 1 August. They now own 0 MASS shares.

Vann Brandi C bought 20,409 shares of MASS on 1 August. They now own 20,409 MASS shares.

Vann Brandi C bought 15,577 shares of MASS on 1 August. They now own 15,577 MASS shares.

Leonhart Michele M. sold 6,485 shares of MASS on 25 June. They now own 12,971 MASS shares.

Leonhart Michele M. bought 6,485 shares of MASS on 25 June. They now own 6,485 MASS shares.

Turner Michael S. sold 1,373 shares of MASS on 18 June. They now own 0 MASS shares.

Turner Michael S. sold 7,148 shares of MASS on 17 June. They now own 1,373 MASS shares.

Turner Michael S. sold 16,082 shares of MASS on 16 June. They now own 8,521 MASS shares.

Brown Christopher D. bought 67,604 shares of MASS on 13 June. They now own 0 MASS shares.

Brown Christopher D. bought 0 shares of MASS on 13 June. They now own 962,122 MASS shares.

Brown Christopher D. bought 60,064 shares of MASS on 13 June. They now own 0 MASS shares.

Brown Christopher D. bought 33,400 shares of MASS on 13 June. They now own 0 MASS shares.

Brown Christopher D. bought 45,018 shares of MASS on 13 June. They now own 0 MASS shares.

Brown Christopher D. bought 114,318 shares of MASS on 13 June. They now own 0 MASS shares.

Brown Christopher D. bought 32,974 shares of MASS on 13 June. They now own 0 MASS shares.

Hunt Anthony bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Eloi Fenel M bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

George Jeffrey P. bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Hunt Anthony bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

Crandell Keith bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

George Jeffrey P. bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

Spoto Mark bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Leonhart Michele M. bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Crandell Keith bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Spoto Mark bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

Leonhart Michele M. bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

Eloi Fenel M bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Hrusovsky E Kevin bought 6,516 shares of MASS on 12 June. They now own 6,516 MASS shares.

Hrusovsky E Kevin bought 14,083 shares of MASS on 12 June. They now own 14,083 MASS shares.

Spoto Mark sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Hunt Anthony sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

George Jeffrey P. sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Eisenberg Marcia bought 11,364 shares of MASS on 11 June. They now own 25,957 MASS shares.

George Jeffrey P. bought 11,364 shares of MASS on 11 June. They now own 26,814 MASS shares.

Hrusovsky E Kevin bought 11,364 shares of MASS on 11 June. They now own 151,307 MASS shares.

Hrusovsky E Kevin sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Crandell Keith sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Spoto Mark bought 11,364 shares of MASS on 11 June. They now own 74,335 MASS shares.

Hunt Anthony bought 11,364 shares of MASS on 11 June. They now own 30,085 MASS shares.

Eisenberg Marcia sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Crandell Keith bought 11,364 shares of MASS on 11 June. They now own 25,291 MASS shares.

Eloi Fenel M sold 11,364 shares of MASS on 11 June. They now own 0 MASS shares.

Eloi Fenel M bought 11,364 shares of MASS on 11 June. They now own 26,814 MASS shares.

Griffith Joseph H. Iv sold 6,940 shares of MASS on 4 June. They now own 102,930 MASS shares.

Knopp Kevin J. bought 15,000 shares of MASS on 15 May. They now own 722,733 MASS shares.

Spoto Mark bought 7,000 shares of MASS on 14 May. They now own 59,971 MASS shares.

Spoto Mark bought 3,000 shares of MASS on 14 May. They now own 62,971 MASS shares.

Knopp Kevin J. bought 15,000 shares of MASS on 14 May. They now own 707,733 MASS shares.

Awm Investment Company, Inc. bought 0 shares of MASS on 4 March. They now own 5,199,924 MASS shares.

Turner Michael S. bought 125,470 shares of MASS on 3 March. They now own 125,470 MASS shares.

Turner Michael S. bought 57,111 shares of MASS on 3 March. They now own 57,111 MASS shares.

Griffith Joseph H. Iv bought 59,362 shares of MASS on 3 March. They now own 59,362 MASS shares.