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 |
|---|---|---|---|---|---|---|
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $50K–$100K | 2K | $55.18 | Feb 14, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 2K | $96.80 | Feb 14, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 6K | $40.90 | Feb 12, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $500K+ | 6K | $96.14 | Feb 12, 2024 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $50K–$100K | 583 | $95.74 | Feb 9, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $500K+ | 9K | $94.12 | Jan 31, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 9K | $39.10 | Jan 31, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $15K–$50K | 524 | $94.01 | Jan 24, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $15K–$50K | 524 | $39.10 | Jan 24, 2024 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $50K–$100K | 583 | $90.54 | Jan 22, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 5K | $30.92 | Jan 18, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 5K | $89.17 | Jan 18, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1K–$15K | 110 | $89.01 | Jan 16, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $1K–$15K | 110 | $30.92 | Jan 16, 2024 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 95K | $77.20 | Jan 3, 2024 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $500K+ | 95K | $7.28 | Jan 3, 2024 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 25K | $84.80 | Dec 22, 2023 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $1M+ | 25K | $41.69 | Dec 22, 2023 |
| Thurman Alex R. | SVP & CHIEF FINANC… | SELL | $15K–$50K | 583 | $85.14 | Dec 22, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $500K+ | 80K | $7.28 | Dec 22, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 80K | $85.21 | Dec 22, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 45K | $71.98 | Oct 4, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $100K–$500K | 45K | $7.28 | Oct 4, 2023 |
| Kliman Gilbert H | Director | EXERCISE | $50K–$100K | 10K | $7.28 | Aug 8, 2023 |
| Kliman Gilbert H | Director | SELL | $500K+ | 10K | $74.56 | Aug 8, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $1K–$15K | 200 | $7.28 | Jul 21, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $15K–$50K | 200 | $80.01 | Jul 21, 2023 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $1M+ | 42K | $78.34 | Jul 19, 2023 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $1M+ | 42K | $38.36 | Jul 19, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $100K–$500K | 30K | $7.28 | Jul 19, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 30K | $77.95 | Jul 19, 2023 |
| Gilliam Joseph E | PRESIDENT & COO | EXERCISE | $100K–$500K | 3K | $41.69 | Jul 14, 2023 |
| Gilliam Joseph E | PRESIDENT & COO | SELL | $100K–$500K | 3K | $73.09 | Jul 14, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $500K+ | 14K | $70.86 | Jul 11, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $50K–$100K | 14K | $7.28 | Jul 11, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 31K | $69.59 | Jul 6, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $100K–$500K | 31K | $7.28 | Jul 6, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 27K | $70.19 | Jun 30, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $100K–$500K | 27K | $7.28 | Jun 30, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $100K–$500K | 3K | $70.02 | Jun 12, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $15K–$50K | 3K | $7.28 | Jun 12, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1M+ | 25K | $66.54 | Jun 8, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $100K–$500K | 25K | $7.28 | Jun 8, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $1K–$15K | 142 | $7.28 | Jun 6, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $1K–$15K | 142 | $60.00 | Jun 6, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | <$1K | 8 | $7.28 | May 24, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | <$1K | 8 | $60.03 | May 24, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | SELL | $500K+ | 12K | $60.17 | May 19, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $50K–$100K | 12K | $7.28 | May 19, 2023 |
| Burns Thomas William | CHAIRMAN & CEO | EXERCISE | $50K–$100K | 8K | $7.28 | May 18, 2023 |
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