Position in MASS
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$3,006,272
+$472,549 QoQ
Shares Held
491,221
+1.8% QoQ
Ownership
1.30%
of shares outstanding
% of Portfolio
0.48%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2025
5 quarters on record
Voting authority
Sole 52.575113848960044.ToString("F0")%
Shared 0.ToString("F0")%
None 47.424886151039956.ToString("F0")%
Common Shares in MASS Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $45,041,725 across 17 Medical Devices names. MASS ranks #6 (6.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BWAY |
Brainsway Ltd.
|
618,553 | $8,220,569 | |
| 2 | BVS |
Bioventus Inc.
|
603,258 | $5,507,745 | |
| 3 | NVCR |
NovoCure Ltd
|
452,370 | $4,930,833 | |
| 4 | GMED |
Globus Medical Inc
|
50,004 | $4,308,344 | |
| 5 | APYX |
Apyx Medical Corp
|
901,398 | $3,326,158 | |
| 6 | MASS |
908 Devices Inc.
This page
|
491,221 | $3,006,272 | |
| 7 | VREX |
Varex Imaging Corp
|
279,551 | $2,966,036 | |
| 8 | NPCE |
NeuroPace Inc
|
217,738 | $2,863,254 |
All Filings in MASS
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,006,272 | 491,221 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $2,533,723 | 482,614 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $4,326,993 | 493,949 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $3,403,448 | 477,342 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $2,152,859 | 480,549 | Shares | Sole | 2025-05-07 | |
| No filing history on record for this holder in this stock. | ||||||