GLAUKOS Corp
Total Trades
102
Buys
0
Sells
57
Largest Trade
N/A
Insiders
8
Institutional Funds
271
Inst. Value
$1M+
Activist Filings
21
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| WEISNER AIMEE S | Director | SELL | $1M+ | 15K | $117.38 | Feb 23, 2026 |
| WEISNER AIMEE S | Director | EXERCISE | $100K–$500K | 15K | $24.69 | Feb 23, 2026 |
| Stapley Marc | Director | EXERCISE | $100K–$500K | 15K | $24.69 | Jan 27, 2026 |
| Stapley Marc | Director | SELL | $1M+ | 15K | $127.71 | Jan 27, 2026 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 10K | $127.68 | Jan 27, 2026 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $500K+ | 10K | $55.18 | Jan 27, 2026 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $500K+ | 5K | $124.65 | Jan 24, 2026 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 5K | $55.18 | Jan 24, 2026 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $1M+ | 275K | $16.49 | Jan 20, 2026 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 275K | $115.00 | Jan 20, 2026 |
| Kliman Gilbert H | Director | SELL | $500K+ | 5K | $107.27 | Dec 11, 2025 |
| Kliman Gilbert H | Director | EXERCISE | $100K–$500K | 5K | $24.69 | Dec 11, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $15K–$50K | 315 | $105.00 | Nov 26, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 19K | $90.00 | Nov 21, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT … | SELL | $15K–$50K | 517 | $84.22 | Sep 24, 2025 |
| Navratil Tomas | CHIEF DEVELOPMENT … | SELL | $100K–$500K | 5K | $88.22 | Sep 13, 2025 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $100K–$500K | 2K | $106.84 | Mar 27, 2025 |
| Foley Mark J | Director | EXERCISE | $1M+ | 40K | $29.26 | Feb 28, 2025 |
| Foley Mark J | Director | SELL | $1M+ | 21K | $120.72 | Feb 28, 2025 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 3K | $59.74 | Dec 24, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 3K | $149.85 | Dec 24, 2024 |
| Kliman Gilbert H | Director | EXERCISE | $100K–$500K | 10K | $32.00 | Dec 24, 2024 |
| Kliman Gilbert H | Director | SELL | $1M+ | 10K | $150.28 | Dec 24, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 2K | $69.30 | Nov 1, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 2K | $138.97 | Nov 1, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $500K+ | 5K | $129.36 | Aug 23, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 5K | $55.18 | Aug 23, 2024 |
| Stapley Marc | Director | SELL | $500K+ | 6K | $125.93 | Aug 19, 2024 |
| Stapley Marc | Director | EXERCISE | $100K–$500K | 6K | $32.00 | Aug 19, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 3K | $113.50 | Jun 5, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 3K | $55.18 | Jun 5, 2024 |
| Kliman Gilbert H | Director | GRANT | N/A | 2K | — | Jun 4, 2024 |
| Kliman Gilbert H | Director | EXERCISE | $100K–$500K | 5K | $32.00 | Jun 4, 2024 |
| Kliman Gilbert H | Director | SELL | $500K+ | 5K | $112.00 | Jun 4, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $1M+ | 60K | $41.69 | Apr 11, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 60K | $100.47 | Apr 11, 2024 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $100K–$500K | 2K | $99.91 | Apr 9, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 2K | $96.81 | Apr 9, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 2K | $55.18 | Apr 9, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $15K–$50K | 400 | $96.59 | Apr 5, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $15K–$50K | 400 | $55.18 | Apr 5, 2024 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $50K–$100K | 750 | $95.03 | Apr 5, 2024 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $15K–$50K | 474 | $90.37 | Apr 4, 2024 |
| Stapley Marc | Director | SELL | $500K+ | 6K | $90.09 | Mar 5, 2024 |
| Stapley Marc | Director | EXERCISE | $100K–$500K | 6K | $32.00 | Mar 5, 2024 |
| Kliman Gilbert H | Director | SELL | $500K+ | 8K | $92.00 | Feb 29, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $1M+ | 119K | $39.82 | Feb 28, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 140K | $92.14 | Feb 28, 2024 |
| Foley Mark J | Director | EXERCISE | $50K–$100K | 10K | $7.28 | Feb 27, 2024 |
| Foley Mark J | Director | SELL | $100K–$500K | 5K | $92.87 | Feb 27, 2024 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 271 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 5.5M | $1M+ | SH |
| PRIMECAP MANAGEMENT CO/CA/ | 3.4M | $1M+ | SH |
| STATE STREET CORP | 2.1M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 1.6M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| BRAIDWELL LP | 922K | $1M+ | SH |
| Capital World Investors | 851K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 714K | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 673K | $1M+ | SH |
| NORGES BANK | 536K | $1M+ | SH |
| RIVERBRIDGE PARTNERS LLC | 535K | $1M+ | SH |
| Capital International Investors | 512K | $1M+ | SH |
| AustralianSuper Pty Ltd | 450K | $1M+ | SH |
| Champlain Investment Partners, LLC | 333K | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 329K | $1M+ | SH |
| BROWN CAPITAL MANAGEMENT LLC | 327K | $1M+ | SH |
| EVENTIDE ASSET MANAGEMENT, LLC | 289K | $1M+ | SH |
| Sofinnova Investments, Inc. | 288K | $1M+ | SH |
| Rhenman & Partners Asset Management AB | 210K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Feb 17, 2026
5.3%
3.0M shares
SC 13G · Feb 11, 2026
5.9%
3.4M shares
Wellington Management Group LLP
SC 13G/A · Feb 10, 2026
0.8%
487K shares
Wellington Management Group LLP
SC 13G · Aug 12, 2025
5.7%
3.2M shares
SC 13G/A · Aug 7, 2025
4.5%
2.6M shares
SC 13G/A · Apr 29, 2025
14.4%
8.2M shares
SC 13G/A · Feb 12, 2025
4.4%
2.6M shares
SC 13G/A · Feb 12, 2025
11.0%
6.1M shares
SC 13G/A · Nov 14, 2024
3.0%
1.6M shares
SC 13G/A · Feb 14, 2024
5.5%
2.7M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
10.7%
5.2M shares
SC 13G/A · Jan 22, 2024
16.2%
7.9M shares
Wellington Management Group LLP
SC 13G/A · Jan 10, 2024
2.8%
1.3M shares
SC 13G · Dec 11, 2023
10.2%
5.0M shares
SC 13G/A · Feb 14, 2023
5.7%
2.8M shares
SC 13G/A · Feb 14, 2023
5.7%
2.7M shares
SC 13G · Jan 31, 2023
16.3%
7.8M shares
SC 13G/A · Feb 14, 2022
5.7%
2.7M shares
SC 13G/A · Feb 14, 2022
6.4%
3.0M shares
SC 13G/A · Jan 28, 2022
15.8%
7.4M shares
Wellington Management Group LLP
SC 13G · Jan 10, 2022
10.5%
4.9M shares