LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM

Reporting ownerCIK 0001836988

Christopher D. Brown

23 transactions in one company, from February 1, 2026 to October 7, 2026.

Transactions: 231 company
Bought · P: $0open market
Sold · S: $2.2Mopen market
Net: −$2.2Mnet selling

By company

Where this insider traded.

Company	Ticker	Trades	Bought	Sold
908 Devices Inc.	MASS	23	—	$2.2M

All transactions

23 in total, newest filings first.

Company	Ticker	Insider	Date	Code	Shares	Price	Value
908 Devices Inc.	MASS	Christopher D. BrownDirDERIV	Oct 7	MPLAN	60,000	$0.00	—?
908 Devices Inc.	MASS	Christopher D. BrownDir	Oct 7	MPLAN	60,000	$1.75	$105K
908 Devices Inc.	MASS	Christopher D. BrownDir	Oct 7	SPLAN	30,000	$11.89	$357K
908 Devices Inc.	MASS	Christopher D. BrownDir	Sep 2	SPLAN	30,000	$10.58	$317K
908 Devices Inc.	MASS	Christopher D. BrownDir	Aug 11	SPLAN	8,358	$9.23	$77K
908 Devices Inc.	MASS	Christopher D. BrownDir	Aug 10	SPLAN	9,442	$9.03	$85K
908 Devices Inc.	MASS	Christopher D. BrownDir	Aug 5	SPLAN	20,000	$8.49	$170K
908 Devices Inc.	MASS	Christopher D. BrownDir	Jul 2	SPLAN	2,200	$9.02	$20K
908 Devices Inc.	MASS	Christopher D. BrownDir	Jun 30	SPLAN	20,000	$8.84	$177K
908 Devices Inc.	MASS	Christopher D. BrownDir	Jun 23	SPLAN	9,900	$9.04	$89K
908 Devices Inc.	MASS	Christopher D. BrownDir	Jun 4	SPLAN	100	$9.00	$900
908 Devices Inc.	MASS	Christopher D. BrownDir	Jun 3	SPLAN	20,000	$8.73	$175K
908 Devices Inc.	MASS	Christopher D. BrownDir	May 28	SPLAN	30,000	$9.00	$270K
908 Devices Inc.	MASS	Christopher D. BrownDir	May 6	SPLAN	20,000	$7.23	$145K
908 Devices Inc.	MASS	Christopher D. BrownDir	Apr 10	SPLAN	17,578	$7.07	$124K
908 Devices Inc.	MASS	Christopher D. BrownDir	Apr 9	SPLAN	7,392	$7.04	$52K
908 Devices Inc.	MASS	Christopher D. BrownDir	Apr 8	SPLAN	15,030	$7.05	$106K
908 Devices Inc.	MASS	Christopher D. BrownDirDERIV	Feb 1	M	10,992	$0.00	—?
908 Devices Inc.	MASS	Christopher D. BrownDirDERIV	Feb 1	M	7,418	$0.00	—?
908 Devices Inc.	MASS	Christopher D. BrownDirDERIV	Feb 1	M	5,027	$0.00	—?
908 Devices Inc.	MASS	Christopher D. BrownDir	Feb 1	M	10,992	—	—
908 Devices Inc.	MASS	Christopher D. BrownDir	Feb 1	M	7,418	—	—
908 Devices Inc.	MASS	Christopher D. BrownDir	Feb 1	M	5,027	—	—