Position in GKOS
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$56,882
-$8,898 QoQ
Shares Held
407
-33.4% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#288
of 364 holders
Holding Since
Jun 2021
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in GKOS Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $38,562,883 across 13 Medical Devices names. GKOS ranks #13 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BWAY |
Brainsway Ltd.
|
592,606 | $9,191,319 | |
| 2 | NVCR |
NovoCure Ltd
|
439,648 | $6,660,667 | |
| 3 | APYX |
Apyx Medical Corp
|
1,136,630 | $5,103,468 | |
| 4 | SIBN |
SI-BONE, Inc.
|
271,404 | $4,429,313 | |
| 5 | MASS |
908 Devices Inc.
|
470,244 | $4,091,122 | |
| 6 | GMED |
Globus Medical Inc
|
49,677 | $3,924,979 | |
| 7 | NPCE |
NeuroPace Inc
|
208,703 | $3,316,290 | |
| 8 | RPID |
Rapid Micro Biosystems, Inc.
|
362,696 | $627,464 |
All Filings in GKOS
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $56,882 | 407 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $65,780 | 611 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $68,988 | 611 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $49,827 | 611 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $63,110 | 611 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $60,134 | 611 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $91,613 | 611 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $190,990 | 1,466 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $173,501 | 1,466 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $157,558 | 1,671 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $186,245 | 2,343 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $215,064 | 2,858 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $205,369 | 2,884 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $687,021 | 13,713 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $600,468 | 13,747 | Shares | Sole | 2023-02-03 | |
| 2022-09-30 | $2,756,501 | 51,775 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,351,620 | 51,775 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $3,219,822 | 55,687 | Shares | Sole | 2022-05-09 | |
| 2021-12-31 | $200,513 | 4,512 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $164,356 | 3,412 | Shares | Sole | 2021-11-09 | |
| 2021-06-30 | $289,439 | 3,412 | Shares | Sole | 2021-08-12 | |
| No filing history on record for this holder in this stock. | ||||||