E. Kevin Hrusovsky

CIK: 0001252546

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)2 (33.3%)

Derivative conversions

Awards (A)4 (66.7%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MASS

908 Devices Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (6 total)

MASS
908 Devices Inc.
Jun 11, 2026
Award(A)
Restricted Stock Units
Direct
13.7K shares-
MASS
908 Devices Inc.
Jun 11, 2026
Award(A)
Stock Option (option to buy)
Direct
6.2K shares-
MASS
908 Devices Inc.
Jun 10, 2026
Exercise(M)
Direct
14.1K shares-
MASS
908 Devices Inc.
Jun 12, 2025
Award(A)
Restricted Stock Units
Direct
14.1K shares-
MASS
908 Devices Inc.
Jun 12, 2025
Award(A)
Stock Option (option to buy)
Direct
6.5K shares-
MASS
908 Devices Inc.
Jun 11, 2025
Exercise(M)
Direct
11.4K shares-

		Type	Shares	Price		Ownership
Jun 11, 2026	MASS 908 Devices Inc.	Award(A) Restricted Stock Units	13,656	-	-	Direct
Jun 11, 2026	MASS 908 Devices Inc.	Award(A) Stock Option (option to buy)	6,209	-	-	Direct
Jun 10, 2026	MASS 908 Devices Inc.	Exercise(M)	14,083	-	$0	Direct
Jun 12, 2025	MASS 908 Devices Inc.	Award(A) Restricted Stock Units	14,083	-	-	Direct
Jun 12, 2025	MASS 908 Devices Inc.	Award(A) Stock Option (option to buy)	6,516	-	-	Direct
Jun 11, 2025	MASS 908 Devices Inc.	Exercise(M)	11,364	-	-	Direct

1-6 of 6 transactions

About HRUSOVSKY E KEVIN

HRUSOVSKY E KEVIN (SEC CIK 0001252546) files insider reports with the SEC as Director of 908 Devices Inc. (MASS).

Signal8 holds 2 ownership filings by HRUSOVSKY E KEVIN, all Form 4s, filed between Jun 13, 2025 and Jun 12, 2026. Those filings report 6 transactions, from Jun 11, 2025 to Jun 11, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on HRUSOVSKY E KEVIN's filings is in BURLINGTON, MA.

Recent filings by HRUSOVSKY E KEVIN

Jun 11, 2026: Grants or awards of MASS derivative securities (2 lines, Form 4, code A).
Jun 10, 2026: Option exercise of MASS shares (Form 4, code M).
Jun 12, 2025: Grants or awards of MASS derivative securities (2 lines, Form 4, code A).
Jun 11, 2025: Option exercise of MASS shares (Form 4, code M).

Other insiders filing for 908 Devices Inc. (MASS)

Brown Christopher D., Director
Griffith Joseph H. IV, Chief Financial Officer
AWM Investment Company, Inc., 10% Owner
Kenneweg John, SVP, Sales & Product Marketing
Knopp Kevin J., President and CEO
Vann Brandi C, Director

How to read Form 4 transaction codes