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Glaukos (GKOS)
NYSE
$183.76-$1.13 (-0.61%)
Price as of Aug 21, 2026 7:30 PM EDT- $10.9BMarket Cap
- 96.38%1-Year Change
- Medical DevicesIndustry
Glaukos (GKOS)
$183.76-$1.13 (-0.61%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 16.17% | 9.5M | +450,027 (+4.72%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 14.91% | 8.8M | +319,714 (+3.63%) | Dec 31, 2024 |
BLACKROCK INC. | 13.63% | 8.0M | +140,775 (+1.75%) | Jun 30, 2024 |
VANGUARD GROUP INC | 10.21% | 6.0M | -26,028 (-0.43%) | Dec 31, 2025 |
JANUS HENDERSON GROUP PLC | 9.07% | 5.3M | +2.3M (+43.56%) | Mar 31, 2026 |
WELLINGTON MANAGEMENT CO LLP | 8.35% | 4.9M | +1.1M (+22.87%) | Dec 31, 2021 |
JUPITER TOPCO LLC | 8.24% | 4.9M | +4.9M (+100.00%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
Virtus Investment Trust | 19.90% | 11.7M | 0 (0.00%) | Mar 31, 2026 |
Virtus Strategy Trust | 12.19% | 7.2M | 0 (0.00%) | Sep 30, 2025 |
LORD ABBETT INVESTMENT TRUST | 8.21% | 4.8M | 0 (0.00%) | May 31, 2026 |
VANGUARD INDEX FUNDS | 7.44% | 4.4M | +113,147 (+2.58%) | Mar 31, 2026 |
JANUS INVESTMENT FUND | 6.04% | 3.6M | +1.5M (+41.74%) | Mar 31, 2026 |
iSHARES TRUST | 4.24% | 2.5M | 0 (0.00%) | May 31, 2026 |
FORUM FUNDS | 3.48% | 2.0M | 0 (0.00%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions999.6M (61.63%)
- Mutual Funds607.3M (37.44%)
- Insiders15.0M (0.92%)
- Other0 (0.00%)
Insider Transactions
- 0.92% (15.0M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 4Number of InsiderSelling (last 12 months)
- $54.6MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Kliman Gilbert H | Exempt | Aug 19, 2026 | $0.00 | 2,500 | $0.00 | 12,500 |
Kliman Gilbert H | Exempt | Aug 19, 2026 | $64,425.00 | 2,500 | $25.77 | 39,906 |
Kliman Gilbert H | Sell | Aug 19, 2026 | $475,000.00 | 2,500 | $190.00 | 37,406 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $0.00 | 20,000 | $0.00 | 51,475 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $0.00 | 20,000 | $0.00 | 33,118 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $0.00 | 10,000 | $0.00 | 26,751 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $0.00 | 10,000 | $0.00 | 26,751 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $484,600.00 | 10,000 | $48.46 | 82,588 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $1.1M | 20,000 | $55.18 | 102,588 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $1.1M | 20,000 | $55.18 | 122,588 |
Gilliam Joseph E PRESIDENT & COO | Exempt | Aug 11, 2026 | $484,600.00 | 10,000 | $48.46 | 132,588 |
Gilliam Joseph E PRESIDENT & COO | Sell | Aug 11, 2026 | $5.0M | 27,963 | $178.89 | 104,625 |
Gilliam Joseph E PRESIDENT & COO | Sell | Aug 11, 2026 | $5.8M | 32,037 | $180.49 | 72,588 |
WEN LEANA | Sell | Jul 31, 2026 | $88,005.75 | 525 | $167.63 | 21,092 |
Navratil Tomas CHIEF DEVELOPMENT OFFICER | Sell | Jul 01, 2026 | $99,566.96 | 716 | $139.06 | 87,634 |
Burns Thomas William CHAIRMAN & CEO | In Kind | Jun 25, 2026 | $578,691.63 | 4,059 | $142.57 | 68,967 |
Navratil Tomas CHIEF DEVELOPMENT OFFICER | Sell | Jun 16, 2026 | $200,855.16 | 1,537 | $130.68 | 88,833 |