Position in GKOS
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$51,915,697
-$48,524,626 QoQ
Shares Held
482,219
-60.8% QoQ
Ownership
0.821%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
6 quarters on record
Voting authority
Sole 92.38686157119483.ToString("F0")%
Shared 0.ToString("F0")%
None 7.613138428805169.ToString("F0")%
Common Shares in GKOS Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026WESTFIELD CAPITAL MANAGEMENT CO LP holds $120,408,739 across 7 Medical Devices names. GKOS ranks #2 (43.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MASI |
Masimo Corp
|
341,229 | $60,694,402 | |
| 2 | GKOS |
GLAUKOS Corp
This page
|
482,219 | $51,915,697 | |
| 3 | MDT |
Medtronic plc
|
60,349 | $5,229,240 | |
| 4 | DXCM |
Dexcom Inc
|
27,074 | $1,700,247 | |
| 5 | BSX |
Boston Scientific Corp
|
5,965 | $374,303 | |
| 6 | PODD |
Insulet Corp
|
1,682 | $352,950 | |
| 7 | LUNG |
Pulmonx Corp
|
110,000 | $141,900 |
All Filings in GKOS
Export CSV
6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $51,915,697 | 482,219 | Shares | Sole | 2026-05-11 | |
| 2025-09-30 | $100,440,323 | 1,231,641 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $120,627,536 | 1,167,853 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $106,705,389 | 1,084,184 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $121,024,220 | 807,151 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $330,520 | 2,537 | Shares | Sole | 2024-11-12 | |
| No filing history on record for this holder in this stock. | ||||||