Position in GKOS
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$67,561,521
+$15,645,824 QoQ
Shares Held
483,411
+0.2% QoQ
Ownership
0.820%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#30
of 366 holders
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 93%
Shared 0%
None 7%
Common Shares in GKOS Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Jun 30, 2026WESTFIELD CAPITAL MANAGEMENT CO LP holds $200,478,527 across 7 Medical Devices names. GKOS ranks #1 (33.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GKOS |
GLAUKOS Corp
This page
|
483,411 | $67,561,521 | |
| 2 | PODD |
Insulet Corp
|
352,717 | $53,701,163 | |
| 3 | PEN |
Penumbra Inc
|
131,394 | $41,487,655 | |
| 4 | IRTC |
iRhythm Holdings, Inc.
|
288,924 | $34,367,509 | |
| 5 | DXCM |
Dexcom Inc
|
25,990 | $1,750,426 | |
| 6 | BSX |
Boston Scientific Corp
|
34,378 | $1,467,253 | |
| 7 | LUNG |
Pulmonx Corp
|
110,000 | $143,000 |
All Filings in GKOS
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $67,561,521 | 483,411 | Shares | Sole | 2026-08-12 | |
| 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. | ||||||